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kernel/patch-6.8-redhat.patch
Justin M. Forbes c77dda29b5
kernel-6.8.0-0.rc6.49 
* Mon Feb 26 2024 Fedora Kernel Team <kernel-team@fedoraproject.org> [6.8.0-0.rc6.49]
- Add libperf-debuginfo subpackage (Justin M. Forbes)
Resolves:

Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>
2024-02-26 08:07:29 -06:00

3891 lines
130 KiB
Diff
Raw Blame History

Documentation/admin-guide/kernel-parameters.txt | 9 +
Kconfig | 2 +
Kconfig.redhat | 26 +
Makefile | 20 +-
arch/arm/Kconfig | 4 +-
arch/arm64/Kconfig | 2 +-
arch/s390/include/asm/ipl.h | 1 +
arch/s390/kernel/ipl.c | 5 +
arch/s390/kernel/setup.c | 4 +
arch/x86/kernel/cpu/common.c | 1 +
arch/x86/kernel/setup.c | 98 +++-
crypto/drbg.c | 18 +-
crypto/rng.c | 149 +++++-
drivers/acpi/apei/hest.c | 8 +
drivers/acpi/irq.c | 17 +-
drivers/acpi/scan.c | 9 +
drivers/ata/libahci.c | 18 +
drivers/char/ipmi/ipmi_dmi.c | 15 +
drivers/char/ipmi/ipmi_msghandler.c | 16 +-
drivers/char/random.c | 122 +++++
drivers/firmware/efi/Makefile | 1 +
drivers/firmware/efi/efi.c | 124 +++--
drivers/firmware/efi/secureboot.c | 38 ++
drivers/hid/hid-rmi.c | 66 ---
drivers/hwtracing/coresight/coresight-etm4x-core.c | 19 +
drivers/input/rmi4/rmi_driver.c | 124 +++--
drivers/iommu/iommu.c | 22 +
drivers/message/fusion/mptsas.c | 5 +
drivers/message/fusion/mptspi.c | 6 +
drivers/net/wireguard/main.c | 6 +
drivers/nvme/host/core.c | 22 +-
drivers/nvme/host/multipath.c | 19 +-
drivers/nvme/host/nvme.h | 4 +
drivers/pci/pci-driver.c | 7 +
drivers/pci/quirks.c | 24 +
drivers/scsi/aacraid/linit.c | 2 +
drivers/scsi/be2iscsi/be_main.c | 2 +
drivers/scsi/hpsa.c | 4 +
drivers/scsi/lpfc/lpfc_ids.h | 12 +
drivers/scsi/megaraid/megaraid_sas_base.c | 4 +
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 +
drivers/scsi/qla2xxx/qla_os.c | 6 +
drivers/scsi/qla4xxx/ql4_os.c | 2 +
drivers/scsi/sd.c | 10 +
drivers/usb/core/hub.c | 7 +
fs/afs/main.c | 3 +
fs/erofs/super.c | 9 +
fs/ext4/super.c | 11 +
include/linux/crypto.h | 1 +
include/linux/efi.h | 22 +-
include/linux/kernel.h | 16 +
include/linux/lsm_hook_defs.h | 2 +
include/linux/module.h | 5 +
include/linux/panic.h | 18 +-
include/linux/pci.h | 5 +
include/linux/random.h | 10 +
include/linux/rh_kabi.h | 541 +++++++++++++++++++++
include/linux/rmi.h | 1 +
include/linux/security.h | 5 +
init/main.c | 3 +
kernel/Makefile | 1 +
kernel/bpf/syscall.c | 23 +
kernel/module/main.c | 7 +
kernel/module/signing.c | 9 +-
kernel/panic.c | 13 +
kernel/rh_messages.c | 414 ++++++++++++++++
kernel/rh_messages.h | 109 +++++
scripts/mod/modpost.c | 8 +
scripts/tags.sh | 2 +
security/integrity/platform_certs/load_uefi.c | 6 +-
security/lockdown/Kconfig | 13 +
security/lockdown/lockdown.c | 1 +
security/security.c | 12 +
73 files changed, 2147 insertions(+), 207 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 31b3a25680d0..52ff60af2044 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -6829,6 +6829,15 @@
unknown_nmi_panic
[X86] Cause panic on unknown NMI.
+ unprivileged_bpf_disabled=
+ Format: { "0" | "1" | "2" }
+ Sets the initial value of
+ kernel.unprivileged_bpf_disabled sysctl knob.
+ 0 - unprivileged bpf() syscall access is enabled.
+ 1 - unprivileged bpf() syscall access is disabled permanently.
+ 2 - unprivileged bpf() syscall access is disabled.
+ Default value is 2.
+
unwind_debug [X86-64]
Enable unwinder debug output. This can be
useful for debugging certain unwinder error
diff --git a/Kconfig b/Kconfig
index 745bc773f567..f57ff40109d7 100644
--- a/Kconfig
+++ b/Kconfig
@@ -30,3 +30,5 @@ source "lib/Kconfig"
source "lib/Kconfig.debug"
source "Documentation/Kconfig"
+
+source "Kconfig.redhat"
diff --git a/Kconfig.redhat b/Kconfig.redhat
new file mode 100644
index 000000000000..7465c78a90e6
--- /dev/null
+++ b/Kconfig.redhat
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Red Hat specific options
+#
+
+menu "Red Hat options"
+
+config RHEL_DIFFERENCES
+ bool "Remove support for deprecated features"
+ help
+ Red Hat may choose to deprecate certain features in its kernels.
+ Enable this option to remove support for hardware that is no
+ longer supported.
+
+ Unless you want a restricted kernel, say N here.
+
+config RH_KABI_SIZE_ALIGN_CHECKS
+ bool "Enables more stringent kabi checks in the macros"
+ depends on RHEL_DIFFERENCES
+ default y
+ help
+ This option enables more stringent kabi checks. Those must
+ be disabled in case of a debug build, because debug builds
+ allow to change struct sizes.
+
+endmenu
diff --git a/Makefile b/Makefile
index 6cdb5717bfe0..dd56cbe27ea7 100644
--- a/Makefile
+++ b/Makefile
@@ -22,6 +22,18 @@ $(if $(filter __%, $(MAKECMDGOALS)), \
PHONY := __all
__all:
+# Set RHEL variables
+# Note that this ifdef'ery is required to handle when building with
+# the O= mechanism (relocate the object file results) due to upstream
+# commit 67d7c302 which broke our RHEL include file
+ifneq ($(realpath source),)
+include $(realpath source)/Makefile.rhelver
+else
+ifneq ($(realpath Makefile.rhelver),)
+include Makefile.rhelver
+endif
+endif
+
# We are using a recursive build, so we need to do a little thinking
# to get the ordering right.
#
@@ -1247,7 +1259,13 @@ define filechk_version.h
((c) > 255 ? 255 : (c)))'; \
echo \#define LINUX_VERSION_MAJOR $(VERSION); \
echo \#define LINUX_VERSION_PATCHLEVEL $(PATCHLEVEL); \
- echo \#define LINUX_VERSION_SUBLEVEL $(SUBLEVEL)
+ echo \#define LINUX_VERSION_SUBLEVEL $(SUBLEVEL); \
+ echo '#define RHEL_MAJOR $(RHEL_MAJOR)'; \
+ echo '#define RHEL_MINOR $(RHEL_MINOR)'; \
+ echo '#define RHEL_RELEASE_VERSION(a,b) (((a) << 8) + (b))'; \
+ echo '#define RHEL_RELEASE_CODE \
+ $(shell expr $(RHEL_MAJOR) \* 256 + $(RHEL_MINOR))'; \
+ echo '#define RHEL_RELEASE "$(RHEL_RELEASE)"'
endef
$(version_h): PATCHLEVEL := $(or $(PATCHLEVEL), 0)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 0af6709570d1..54a8093d2dd3 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1221,9 +1221,9 @@ config HIGHMEM
If unsure, say n.
config HIGHPTE
- bool "Allocate 2nd-level pagetables from highmem" if EXPERT
+ bool "Allocate 2nd-level pagetables from highmem"
depends on HIGHMEM
- default y
+ default n
help
The VM uses one page of physical memory for each page table.
For systems with a lot of processes, this can use a lot of
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index aa7c1d435139..9d3053d2d256 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1328,7 +1328,7 @@ endchoice
config ARM64_FORCE_52BIT
bool "Force 52-bit virtual addresses for userspace"
- depends on ARM64_VA_BITS_52 && EXPERT
+ depends on ARM64_VA_BITS_52
help
For systems with 52-bit userspace VAs enabled, the kernel will attempt
to maintain compatibility with older software by providing 48-bit VAs
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
index b0d00032479d..afb9544fb007 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -139,6 +139,7 @@ int ipl_report_add_component(struct ipl_report *report, struct kexec_buf *kbuf,
unsigned char flags, unsigned short cert);
int ipl_report_add_certificate(struct ipl_report *report, void *key,
unsigned long addr, unsigned long len);
+bool ipl_get_secureboot(void);
/*
* DIAG 308 support
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index ba75f6bee774..7d37ce1772f1 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -2520,3 +2520,8 @@ int ipl_report_free(struct ipl_report *report)
}
#endif
+
+bool ipl_get_secureboot(void)
+{
+ return !!ipl_secure_flag;
+}
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index d1f3b56e7afc..eaefd0d7cfff 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -49,6 +49,7 @@
#include <linux/memory.h>
#include <linux/compat.h>
#include <linux/start_kernel.h>
+#include <linux/security.h>
#include <linux/hugetlb.h>
#include <linux/kmemleak.h>
@@ -891,6 +892,9 @@ void __init setup_arch(char **cmdline_p)
log_component_list();
+ if (ipl_get_secureboot())
+ security_lock_kernel_down("Secure IPL mode", LOCKDOWN_INTEGRITY_MAX);
+
/* Have one command line that is parsed and saved in /proc/cmdline */
/* boot_command_line has been already set up in early.c */
*cmdline_p = boot_command_line;
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 0b97bcde70c6..c624a2bee5f8 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1588,6 +1588,7 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
cpu_detect(c);
get_cpu_vendor(c);
get_cpu_cap(c);
+ get_model_name(c); /* RHEL: get model name for unsupported check */
setup_force_cpu_cap(X86_FEATURE_CPUID);
cpu_parse_early_param();
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 84201071dfac..d00c2713281e 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -21,6 +21,7 @@
#include <linux/root_dev.h>
#include <linux/hugetlb.h>
#include <linux/tboot.h>
+#include <linux/security.h>
#include <linux/usb/xhci-dbgp.h>
#include <linux/static_call.h>
#include <linux/swiotlb.h>
@@ -55,6 +56,7 @@
#include <asm/unwind.h>
#include <asm/vsyscall.h>
#include <linux/vmalloc.h>
+#include <asm/intel-family.h>
/*
* max_low_pfn_mapped: highest directly mapped pfn < 4 GB
@@ -668,6 +670,79 @@ static void __init early_reserve_memory(void)
trim_snb_memory();
}
+#ifdef CONFIG_RHEL_DIFFERENCES
+
+static void rh_check_supported(void)
+{
+ bool guest;
+
+ guest = (x86_hyper_type != X86_HYPER_NATIVE || boot_cpu_has(X86_FEATURE_HYPERVISOR));
+
+ /* RHEL supports single cpu on guests only */
+ if (((boot_cpu_data.x86_max_cores * smp_num_siblings) == 1) &&
+ !guest && is_kdump_kernel()) {
+ pr_crit("Detected single cpu native boot.\n");
+ pr_crit("Important: In this kernel, single threaded, single CPU 64-bit physical systems are unsupported.");
+ }
+
+ /*
+ * If the RHEL kernel does not support this hardware, the kernel will
+ * attempt to boot, but no support is provided for this hardware
+ */
+ switch (boot_cpu_data.x86_vendor) {
+ case X86_VENDOR_AMD:
+ case X86_VENDOR_INTEL:
+ break;
+ default:
+ pr_crit("Detected processor %s %s\n",
+ boot_cpu_data.x86_vendor_id,
+ boot_cpu_data.x86_model_id);
+ break;
+ }
+
+ /*
+ * Due to the complexity of x86 lapic & ioapic enumeration, and PCI IRQ
+ * routing, ACPI is required for x86. acpi=off is a valid debug kernel
+ * parameter, so just print out a loud warning in case something
+ * goes wrong (which is most of the time).
+ */
+ if (acpi_disabled && !guest)
+ pr_crit("ACPI has been disabled or is not available on this hardware. This may result in a single cpu boot, incorrect PCI IRQ routing, or boot failure.\n");
+
+ /*
+ * x86_64 microarchitecture levels:
+ * https://en.wikipedia.org/wiki/X86-64#Microarchitecture_levels
+ *
+ * RHEL9 has a minimum of the x86_64-v2 microarchitecture
+ * RHEL10 has a minimum of the x86_64-v3 microarchitecture
+ */
+
+ if (!boot_cpu_has(X86_FEATURE_CX16) || /* CMPXCHG16B */
+ !boot_cpu_has(X86_FEATURE_LAHF_LM) || /* LAHF-SAHF */
+ !boot_cpu_has(X86_FEATURE_POPCNT) ||
+ !boot_cpu_has(X86_FEATURE_XMM3) || /* SSE-3 */
+ !boot_cpu_has(X86_FEATURE_XMM4_1) || /* SSE4_1 */
+ !boot_cpu_has(X86_FEATURE_XMM4_2) || /* SSE4_2 */
+ !boot_cpu_has(X86_FEATURE_SSSE3)) {
+ mark_hardware_deprecated("x86_64-v1", "%s:%s",
+ boot_cpu_data.x86_vendor_id, boot_cpu_data.x86_model_id);
+ } else if (!boot_cpu_has(X86_FEATURE_AVX) ||
+ !boot_cpu_has(X86_FEATURE_AVX2) ||
+ !boot_cpu_has(X86_FEATURE_BMI1) ||
+ !boot_cpu_has(X86_FEATURE_BMI2) ||
+ !boot_cpu_has(X86_FEATURE_F16C) ||
+ !boot_cpu_has(X86_FEATURE_FMA) ||
+ /* LZCNT is not explicitly listed, but appears to be paired with BMI2 */
+ !boot_cpu_has(X86_FEATURE_MOVBE) ||
+ !boot_cpu_has(X86_FEATURE_OSXSAVE)) {
+ mark_hardware_deprecated("x86_64-v2", "%s:%s",
+ boot_cpu_data.x86_vendor_id, boot_cpu_data.x86_model_id);
+ }
+}
+#else
+#define rh_check_supported()
+#endif
+
/*
* Dump out kernel offset information on panic.
*/
@@ -901,6 +976,13 @@ void __init setup_arch(char **cmdline_p)
if (efi_enabled(EFI_BOOT))
efi_init();
+ efi_set_secure_boot(boot_params.secure_boot);
+
+#ifdef CONFIG_LOCK_DOWN_IN_EFI_SECURE_BOOT
+ if (efi_enabled(EFI_SECURE_BOOT))
+ security_lock_kernel_down("EFI Secure Boot mode", LOCKDOWN_INTEGRITY_MAX);
+#endif
+
reserve_ibft_region();
dmi_setup();
@@ -1064,19 +1146,7 @@ void __init setup_arch(char **cmdline_p)
/* Allocate bigger log buffer */
setup_log_buf(1);
- if (efi_enabled(EFI_BOOT)) {
- switch (boot_params.secure_boot) {
- case efi_secureboot_mode_disabled:
- pr_info("Secure boot disabled\n");
- break;
- case efi_secureboot_mode_enabled:
- pr_info("Secure boot enabled\n");
- break;
- default:
- pr_info("Secure boot could not be determined\n");
- break;
- }
- }
+ efi_set_secure_boot(boot_params.secure_boot);
reserve_initrd();
@@ -1191,6 +1261,8 @@ void __init setup_arch(char **cmdline_p)
efi_apply_memmap_quirks();
#endif
+ rh_check_supported();
+
unwind_init();
}
diff --git a/crypto/drbg.c b/crypto/drbg.c
index 3addce90930c..730b03de596a 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1494,13 +1494,14 @@ static int drbg_generate(struct drbg_state *drbg,
* Wrapper around drbg_generate which can pull arbitrary long strings
* from the DRBG without hitting the maximum request limitation.
*
- * Parameters: see drbg_generate
+ * Parameters: see drbg_generate, except @reseed, which triggers reseeding
* Return codes: see drbg_generate -- if one drbg_generate request fails,
* the entire drbg_generate_long request fails
*/
static int drbg_generate_long(struct drbg_state *drbg,
unsigned char *buf, unsigned int buflen,
- struct drbg_string *addtl)
+ struct drbg_string *addtl,
+ bool reseed)
{
unsigned int len = 0;
unsigned int slice = 0;
@@ -1510,6 +1511,8 @@ static int drbg_generate_long(struct drbg_state *drbg,
slice = ((buflen - len) / drbg_max_request_bytes(drbg));
chunk = slice ? drbg_max_request_bytes(drbg) : (buflen - len);
mutex_lock(&drbg->drbg_mutex);
+ if (reseed)
+ drbg->seeded = DRBG_SEED_STATE_UNSEEDED;
err = drbg_generate(drbg, buf + len, chunk, addtl);
mutex_unlock(&drbg->drbg_mutex);
if (0 > err)
@@ -1936,6 +1939,7 @@ static int drbg_kcapi_random(struct crypto_rng *tfm,
struct drbg_state *drbg = crypto_rng_ctx(tfm);
struct drbg_string *addtl = NULL;
struct drbg_string string;
+ int err;
if (slen) {
/* linked list variable is now local to allow modification */
@@ -1943,7 +1947,15 @@ static int drbg_kcapi_random(struct crypto_rng *tfm,
addtl = &string;
}
- return drbg_generate_long(drbg, dst, dlen, addtl);
+ err = drbg_generate_long(drbg, dst, dlen, addtl,
+ (crypto_tfm_get_flags(crypto_rng_tfm(tfm)) &
+ CRYPTO_TFM_REQ_NEED_RESEED) ==
+ CRYPTO_TFM_REQ_NEED_RESEED);
+
+ crypto_tfm_clear_flags(crypto_rng_tfm(tfm),
+ CRYPTO_TFM_REQ_NEED_RESEED);
+
+ return err;
}
/*
diff --git a/crypto/rng.c b/crypto/rng.c
index 279dffdebf59..d24dd37205cd 100644
--- a/crypto/rng.c
+++ b/crypto/rng.c
@@ -12,10 +12,13 @@
#include <linux/atomic.h>
#include <linux/cryptouser.h>
#include <linux/err.h>
+#include <linux/fips.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/random.h>
+#include <linux/sched.h>
+#include <linux/sched/signal.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/string.h>
@@ -23,7 +26,9 @@
#include "internal.h"
-static DEFINE_MUTEX(crypto_default_rng_lock);
+static ____cacheline_aligned_in_smp DEFINE_MUTEX(crypto_reseed_rng_lock);
+static struct crypto_rng *crypto_reseed_rng;
+static ____cacheline_aligned_in_smp DEFINE_MUTEX(crypto_default_rng_lock);
struct crypto_rng *crypto_default_rng;
EXPORT_SYMBOL_GPL(crypto_default_rng);
static int crypto_default_rng_refcnt;
@@ -136,31 +141,37 @@ struct crypto_rng *crypto_alloc_rng(const char *alg_name, u32 type, u32 mask)
}
EXPORT_SYMBOL_GPL(crypto_alloc_rng);
-int crypto_get_default_rng(void)
+static int crypto_get_rng(struct crypto_rng **rngp)
{
struct crypto_rng *rng;
int err;
- mutex_lock(&crypto_default_rng_lock);
- if (!crypto_default_rng) {
+ if (!*rngp) {
rng = crypto_alloc_rng("stdrng", 0, 0);
err = PTR_ERR(rng);
if (IS_ERR(rng))
- goto unlock;
+ return err;
err = crypto_rng_reset(rng, NULL, crypto_rng_seedsize(rng));
if (err) {
crypto_free_rng(rng);
- goto unlock;
+ return err;
}
- crypto_default_rng = rng;
+ *rngp = rng;
}
- crypto_default_rng_refcnt++;
- err = 0;
+ return 0;
+}
+
+int crypto_get_default_rng(void)
+{
+ int err;
-unlock:
+ mutex_lock(&crypto_default_rng_lock);
+ err = crypto_get_rng(&crypto_default_rng);
+ if (!err)
+ crypto_default_rng_refcnt++;
mutex_unlock(&crypto_default_rng_lock);
return err;
@@ -176,24 +187,33 @@ void crypto_put_default_rng(void)
EXPORT_SYMBOL_GPL(crypto_put_default_rng);
#if defined(CONFIG_CRYPTO_RNG) || defined(CONFIG_CRYPTO_RNG_MODULE)
-int crypto_del_default_rng(void)
+static int crypto_del_rng(struct crypto_rng **rngp, int *refcntp,
+ struct mutex *lock)
{
int err = -EBUSY;
- mutex_lock(&crypto_default_rng_lock);
- if (crypto_default_rng_refcnt)
+ mutex_lock(lock);
+ if (refcntp && *refcntp)
goto out;
- crypto_free_rng(crypto_default_rng);
- crypto_default_rng = NULL;
+ crypto_free_rng(*rngp);
+ *rngp = NULL;
err = 0;
out:
- mutex_unlock(&crypto_default_rng_lock);
+ mutex_unlock(lock);
return err;
}
+
+int crypto_del_default_rng(void)
+{
+ return crypto_del_rng(&crypto_default_rng, &crypto_default_rng_refcnt,
+ &crypto_default_rng_lock) ?:
+ crypto_del_rng(&crypto_reseed_rng, NULL,
+ &crypto_reseed_rng_lock);
+}
EXPORT_SYMBOL_GPL(crypto_del_default_rng);
#endif
@@ -251,5 +271,102 @@ void crypto_unregister_rngs(struct rng_alg *algs, int count)
}
EXPORT_SYMBOL_GPL(crypto_unregister_rngs);
+static ssize_t crypto_devrandom_read_iter(struct iov_iter *iter, bool reseed)
+{
+ struct crypto_rng *rng;
+ u8 tmp[256];
+ ssize_t ret;
+
+ if (unlikely(!iov_iter_count(iter)))
+ return 0;
+
+ if (reseed) {
+ u32 flags = 0;
+
+ /* If reseeding is requested, acquire a lock on
+ * crypto_reseed_rng so it is not swapped out until
+ * the initial random bytes are generated.
+ *
+ * The algorithm implementation is also protected with
+ * a separate mutex (drbg->drbg_mutex) around the
+ * reseed-and-generate operation.
+ */
+ mutex_lock(&crypto_reseed_rng_lock);
+
+ /* If crypto_default_rng is not set, it will be seeded
+ * at creation in __crypto_get_default_rng and thus no
+ * reseeding is needed.
+ */
+ if (crypto_reseed_rng)
+ flags |= CRYPTO_TFM_REQ_NEED_RESEED;
+
+ ret = crypto_get_rng(&crypto_reseed_rng);
+ if (ret) {
+ mutex_unlock(&crypto_reseed_rng_lock);
+ return ret;
+ }
+
+ rng = crypto_reseed_rng;
+ crypto_tfm_set_flags(crypto_rng_tfm(rng), flags);
+ } else {
+ ret = crypto_get_default_rng();
+ if (ret)
+ return ret;
+ rng = crypto_default_rng;
+ }
+
+ for (;;) {
+ size_t i, copied;
+ int err;
+
+ i = min_t(size_t, iov_iter_count(iter), sizeof(tmp));
+ err = crypto_rng_get_bytes(rng, tmp, i);
+ if (err) {
+ ret = err;
+ break;
+ }
+
+ copied = copy_to_iter(tmp, i, iter);
+ ret += copied;
+
+ if (!iov_iter_count(iter))
+ break;
+
+ if (need_resched()) {
+ if (signal_pending(current))
+ break;
+ schedule();
+ }
+ }
+
+ if (reseed)
+ mutex_unlock(&crypto_reseed_rng_lock);
+ else
+ crypto_put_default_rng();
+ memzero_explicit(tmp, sizeof(tmp));
+
+ return ret;
+}
+
+static const struct random_extrng crypto_devrandom_rng = {
+ .extrng_read_iter = crypto_devrandom_read_iter,
+ .owner = THIS_MODULE,
+};
+
+static int __init crypto_rng_init(void)
+{
+ if (fips_enabled)
+ random_register_extrng(&crypto_devrandom_rng);
+ return 0;
+}
+
+static void __exit crypto_rng_exit(void)
+{
+ random_unregister_extrng();
+}
+
+late_initcall(crypto_rng_init);
+module_exit(crypto_rng_exit);
+
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Random Number Generator");
diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c
index 6aef1ee5e1bd..8f146b1b4972 100644
--- a/drivers/acpi/apei/hest.c
+++ b/drivers/acpi/apei/hest.c
@@ -96,6 +96,14 @@ static int apei_hest_parse(apei_hest_func_t func, void *data)
if (hest_disable || !hest_tab)
return -EINVAL;
+#ifdef CONFIG_ARM64
+ /* Ignore broken firmware */
+ if (!strncmp(hest_tab->header.oem_id, "HPE ", 6) &&
+ !strncmp(hest_tab->header.oem_table_id, "ProLiant", 8) &&
+ MIDR_IMPLEMENTOR(read_cpuid_id()) == ARM_CPU_IMP_APM)
+ return -EINVAL;
+#endif
+
hest_hdr = (struct acpi_hest_header *)(hest_tab + 1);
for (i = 0; i < hest_tab->error_source_count; i++) {
len = hest_esrc_len(hest_hdr);
diff --git a/drivers/acpi/irq.c b/drivers/acpi/irq.c
index 1687483ff319..390b67f19181 100644
--- a/drivers/acpi/irq.c
+++ b/drivers/acpi/irq.c
@@ -143,6 +143,7 @@ struct acpi_irq_parse_one_ctx {
unsigned int index;
unsigned long *res_flags;
struct irq_fwspec *fwspec;
+ bool skip_producer_check;
};
/**
@@ -216,7 +217,8 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares,
return AE_CTRL_TERMINATE;
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
eirq = &ares->data.extended_irq;
- if (eirq->producer_consumer == ACPI_PRODUCER)
+ if (!ctx->skip_producer_check &&
+ eirq->producer_consumer == ACPI_PRODUCER)
return AE_OK;
if (ctx->index >= eirq->interrupt_count) {
ctx->index -= eirq->interrupt_count;
@@ -252,8 +254,19 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares,
static int acpi_irq_parse_one(acpi_handle handle, unsigned int index,
struct irq_fwspec *fwspec, unsigned long *flags)
{
- struct acpi_irq_parse_one_ctx ctx = { -EINVAL, index, flags, fwspec };
+ struct acpi_irq_parse_one_ctx ctx = { -EINVAL, index, flags, fwspec, false };
+ /*
+ * Firmware on arm64-based HPE m400 platform incorrectly marks
+ * its UART interrupt as ACPI_PRODUCER rather than ACPI_CONSUMER.
+ * Don't do the producer/consumer check for that device.
+ */
+ if (IS_ENABLED(CONFIG_ARM64)) {
+ struct acpi_device *adev = acpi_get_acpi_dev(handle);
+
+ if (adev && !strcmp(acpi_device_hid(adev), "APMC0D08"))
+ ctx.skip_producer_check = true;
+ }
acpi_walk_resources(handle, METHOD_NAME__CRS, acpi_irq_parse_one_cb, &ctx);
return ctx.rc;
}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index e6ed1ba91e5c..6a87d6ca4a84 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1761,6 +1761,15 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
if (!acpi_match_device_ids(device, ignore_serial_bus_ids))
return false;
+ /*
+ * Firmware on some arm64 X-Gene platforms will make the UART
+ * device appear as both a UART and a slave of that UART. Just
+ * bail out here for X-Gene UARTs.
+ */
+ if (IS_ENABLED(CONFIG_ARM64) &&
+ !strcmp(acpi_device_hid(device), "APMC0D08"))
+ return false;
+
INIT_LIST_HEAD(&resource_list);
acpi_dev_get_resources(device, &resource_list,
acpi_check_serial_bus_slave,
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 1a63200ea437..a911e976a596 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -729,6 +729,24 @@ int ahci_stop_engine(struct ata_port *ap)
tmp &= ~PORT_CMD_START;
writel(tmp, port_mmio + PORT_CMD);
+#ifdef CONFIG_ARM64
+ /* Rev Ax of Cavium CN99XX needs a hack for port stop */
+ if (dev_is_pci(ap->host->dev) &&
+ to_pci_dev(ap->host->dev)->vendor == 0x14e4 &&
+ to_pci_dev(ap->host->dev)->device == 0x9027 &&
+ midr_is_cpu_model_range(read_cpuid_id(),
+ MIDR_CPU_MODEL(ARM_CPU_IMP_BRCM, BRCM_CPU_PART_VULCAN),
+ MIDR_CPU_VAR_REV(0, 0),
+ MIDR_CPU_VAR_REV(0, MIDR_REVISION_MASK))) {
+ tmp = readl(hpriv->mmio + 0x8000);
+ udelay(100);
+ writel(tmp | (1 << 26), hpriv->mmio + 0x8000);
+ udelay(100);
+ writel(tmp & ~(1 << 26), hpriv->mmio + 0x8000);
+ dev_warn(ap->host->dev, "CN99XX SATA reset workaround applied\n");
+ }
+#endif
+
/* wait for engine to stop. This could be as long as 500 msec */
tmp = ata_wait_register(ap, port_mmio + PORT_CMD,
PORT_CMD_LIST_ON, PORT_CMD_LIST_ON, 1, 500);
diff --git a/drivers/char/ipmi/ipmi_dmi.c b/drivers/char/ipmi/ipmi_dmi.c
index bbf7029e224b..cf7faa970dd6 100644
--- a/drivers/char/ipmi/ipmi_dmi.c
+++ b/drivers/char/ipmi/ipmi_dmi.c
@@ -215,6 +215,21 @@ static int __init scan_for_dmi_ipmi(void)
{
const struct dmi_device *dev = NULL;
+#ifdef CONFIG_ARM64
+ /* RHEL-only
+ * If this is ARM-based HPE m400, return now, because that platform
+ * reports the host-side ipmi address as intel port-io space, which
+ * does not exist in the ARM architecture.
+ */
+ const char *dmistr = dmi_get_system_info(DMI_PRODUCT_NAME);
+
+ if (dmistr && (strcmp("ProLiant m400 Server", dmistr) == 0)) {
+ pr_debug("%s does not support host ipmi\n", dmistr);
+ return 0;
+ }
+ /* END RHEL-only */
+#endif
+
while ((dev = dmi_find_device(DMI_DEV_TYPE_IPMI, NULL, dev)))
dmi_decode_ipmi((const struct dmi_header *) dev->device_data);
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index b0eedc4595b3..a9024c1dd68a 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -35,6 +35,7 @@
#include <linux/uuid.h>
#include <linux/nospec.h>
#include <linux/vmalloc.h>
+#include <linux/dmi.h>
#include <linux/delay.h>
#define IPMI_DRIVER_VERSION "39.2"
@@ -5511,8 +5512,21 @@ static int __init ipmi_init_msghandler_mod(void)
{
int rv;
- pr_info("version " IPMI_DRIVER_VERSION "\n");
+#ifdef CONFIG_ARM64
+ /* RHEL-only
+ * If this is ARM-based HPE m400, return now, because that platform
+ * reports the host-side ipmi address as intel port-io space, which
+ * does not exist in the ARM architecture.
+ */
+ const char *dmistr = dmi_get_system_info(DMI_PRODUCT_NAME);
+ if (dmistr && (strcmp("ProLiant m400 Server", dmistr) == 0)) {
+ pr_debug("%s does not support host ipmi\n", dmistr);
+ return -ENOSYS;
+ }
+ /* END RHEL-only */
+#endif
+ pr_info("version " IPMI_DRIVER_VERSION "\n");
mutex_lock(&ipmi_interfaces_mutex);
rv = ipmi_register_driver();
mutex_unlock(&ipmi_interfaces_mutex);
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 456be28ba67c..be318d417622 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -51,6 +51,7 @@
#include <linux/completion.h>
#include <linux/uuid.h>
#include <linux/uaccess.h>
+#include <linux/rcupdate.h>
#include <linux/suspend.h>
#include <linux/siphash.h>
#include <linux/sched/isolation.h>
@@ -309,6 +310,11 @@ static void crng_fast_key_erasure(u8 key[CHACHA_KEY_SIZE],
memzero_explicit(first_block, sizeof(first_block));
}
+/*
+ * Hook for external RNG.
+ */
+static const struct random_extrng __rcu *extrng;
+
/*
* This function returns a ChaCha state that you may use for generating
* random data. It also returns up to 32 bytes on its own of random data
@@ -739,6 +745,9 @@ static void __cold _credit_init_bits(size_t bits)
}
+static const struct file_operations extrng_random_fops;
+static const struct file_operations extrng_urandom_fops;
+
/**********************************************************************
*
* Entropy collection routines.
@@ -956,6 +965,19 @@ void __init add_bootloader_randomness(const void *buf, size_t len)
credit_init_bits(len * 8);
}
+void random_register_extrng(const struct random_extrng *rng)
+{
+ rcu_assign_pointer(extrng, rng);
+}
+EXPORT_SYMBOL_GPL(random_register_extrng);
+
+void random_unregister_extrng(void)
+{
+ RCU_INIT_POINTER(extrng, NULL);
+ synchronize_rcu();
+}
+EXPORT_SYMBOL_GPL(random_unregister_extrng);
+
#if IS_ENABLED(CONFIG_VMGENID)
static BLOCKING_NOTIFIER_HEAD(vmfork_chain);
@@ -1365,6 +1387,7 @@ SYSCALL_DEFINE3(getrandom, char __user *, ubuf, size_t, len, unsigned int, flags
{
struct iov_iter iter;
int ret;
+ const struct random_extrng *rng;
if (flags & ~(GRND_NONBLOCK | GRND_RANDOM | GRND_INSECURE))
return -EINVAL;
@@ -1376,6 +1399,21 @@ SYSCALL_DEFINE3(getrandom, char __user *, ubuf, size_t, len, unsigned int, flags
if ((flags & (GRND_INSECURE | GRND_RANDOM)) == (GRND_INSECURE | GRND_RANDOM))
return -EINVAL;
+ rcu_read_lock();
+ rng = rcu_dereference(extrng);
+ if (rng && !try_module_get(rng->owner))
+ rng = NULL;
+ rcu_read_unlock();
+
+ if (rng) {
+ ret = import_ubuf(ITER_DEST, ubuf, len, &iter);
+ if (unlikely(ret))
+ return ret;
+ ret = rng->extrng_read_iter(&iter, !!(flags & GRND_RANDOM));
+ module_put(rng->owner);
+ return ret;
+ }
+
if (!crng_ready() && !(flags & GRND_INSECURE)) {
if (flags & GRND_NONBLOCK)
return -EAGAIN;
@@ -1396,6 +1434,12 @@ static __poll_t random_poll(struct file *file, poll_table *wait)
return crng_ready() ? EPOLLIN | EPOLLRDNORM : EPOLLOUT | EPOLLWRNORM;
}
+static __poll_t extrng_poll(struct file *file, poll_table * wait)
+{
+ /* extrng pool is always full, always read, no writes */
+ return EPOLLIN | EPOLLRDNORM;
+}
+
static ssize_t write_pool_user(struct iov_iter *iter)
{
u8 block[BLAKE2S_BLOCK_SIZE];
@@ -1536,7 +1580,58 @@ static int random_fasync(int fd, struct file *filp, int on)
return fasync_helper(fd, filp, on, &fasync);
}
+static int random_open(struct inode *inode, struct file *filp)
+{
+ const struct random_extrng *rng;
+
+ rcu_read_lock();
+ rng = rcu_dereference(extrng);
+ if (rng && !try_module_get(rng->owner))
+ rng = NULL;
+ rcu_read_unlock();
+
+ if (!rng)
+ return 0;
+
+ filp->f_op = &extrng_random_fops;
+ filp->private_data = rng->owner;
+
+ return 0;
+}
+
+static int urandom_open(struct inode *inode, struct file *filp)
+{
+ const struct random_extrng *rng;
+
+ rcu_read_lock();
+ rng = rcu_dereference(extrng);
+ if (rng && !try_module_get(rng->owner))
+ rng = NULL;
+ rcu_read_unlock();
+
+ if (!rng)
+ return 0;
+
+ filp->f_op = &extrng_urandom_fops;
+ filp->private_data = rng->owner;
+
+ return 0;
+}
+
+static int extrng_release(struct inode *inode, struct file *filp)
+{
+ module_put(filp->private_data);
+ return 0;
+}
+
+static ssize_t
+extrng_read_iter(struct kiocb *kiocb, struct iov_iter *iter)
+{
+ return rcu_dereference_raw(extrng)->extrng_read_iter(iter, false);
+}
+
const struct file_operations random_fops = {
+ .open = random_open,
.read_iter = random_read_iter,
.write_iter = random_write_iter,
.poll = random_poll,
@@ -1549,6 +1644,7 @@ const struct file_operations random_fops = {
};
const struct file_operations urandom_fops = {
+ .open = urandom_open,
.read_iter = urandom_read_iter,
.write_iter = random_write_iter,
.unlocked_ioctl = random_ioctl,
@@ -1559,6 +1655,32 @@ const struct file_operations urandom_fops = {
.splice_write = iter_file_splice_write,
};
+static const struct file_operations extrng_random_fops = {
+ .open = random_open,
+ .read_iter = extrng_read_iter,
+ .write_iter = random_write_iter,
+ .poll = extrng_poll,
+ .unlocked_ioctl = random_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
+ .fasync = random_fasync,
+ .llseek = noop_llseek,
+ .release = extrng_release,
+ .splice_read = copy_splice_read,
+ .splice_write = iter_file_splice_write,
+};
+
+static const struct file_operations extrng_urandom_fops = {
+ .open = urandom_open,
+ .read_iter = extrng_read_iter,
+ .write_iter = random_write_iter,
+ .unlocked_ioctl = random_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
+ .fasync = random_fasync,
+ .llseek = noop_llseek,
+ .release = extrng_release,
+ .splice_read = copy_splice_read,
+ .splice_write = iter_file_splice_write,
+};
/********************************************************************
*
diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile
index a2d0009560d0..4f3486e6a84b 100644
--- a/drivers/firmware/efi/Makefile
+++ b/drivers/firmware/efi/Makefile
@@ -25,6 +25,7 @@ subdir-$(CONFIG_EFI_STUB) += libstub
obj-$(CONFIG_EFI_BOOTLOADER_CONTROL) += efibc.o
obj-$(CONFIG_EFI_TEST) += test/
obj-$(CONFIG_EFI_DEV_PATH_PARSER) += dev-path-parser.o
+obj-$(CONFIG_EFI) += secureboot.o
obj-$(CONFIG_APPLE_PROPERTIES) += apple-properties.o
obj-$(CONFIG_EFI_RCI2_TABLE) += rci2-table.o
obj-$(CONFIG_EFI_EMBEDDED_FIRMWARE) += embedded-firmware.o
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 4fcda50acfa4..bbbcff15f587 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -33,6 +33,7 @@
#include <linux/memblock.h>
#include <linux/security.h>
#include <linux/notifier.h>
+#include <linux/bsearch.h>
#include <asm/early_ioremap.h>
@@ -990,40 +991,101 @@ int efi_mem_type(unsigned long phys_addr)
return -EINVAL;
}
+struct efi_error_code {
+ efi_status_t status;
+ int errno;
+ const char *description;
+};
+
+static const struct efi_error_code efi_error_codes[] = {
+ { EFI_SUCCESS, 0, "Success"},
+#if 0
+ { EFI_LOAD_ERROR, -EPICK_AN_ERRNO, "Load Error"},
+#endif
+ { EFI_INVALID_PARAMETER, -EINVAL, "Invalid Parameter"},
+ { EFI_UNSUPPORTED, -ENOSYS, "Unsupported"},
+ { EFI_BAD_BUFFER_SIZE, -ENOSPC, "Bad Buffer Size"},
+ { EFI_BUFFER_TOO_SMALL, -ENOSPC, "Buffer Too Small"},
+ { EFI_NOT_READY, -EAGAIN, "Not Ready"},
+ { EFI_DEVICE_ERROR, -EIO, "Device Error"},
+ { EFI_WRITE_PROTECTED, -EROFS, "Write Protected"},
+ { EFI_OUT_OF_RESOURCES, -ENOMEM, "Out of Resources"},
+#if 0
+ { EFI_VOLUME_CORRUPTED, -EPICK_AN_ERRNO, "Volume Corrupt"},
+ { EFI_VOLUME_FULL, -EPICK_AN_ERRNO, "Volume Full"},
+ { EFI_NO_MEDIA, -EPICK_AN_ERRNO, "No Media"},
+ { EFI_MEDIA_CHANGED, -EPICK_AN_ERRNO, "Media changed"},
+#endif
+ { EFI_NOT_FOUND, -ENOENT, "Not Found"},
+#if 0
+ { EFI_ACCESS_DENIED, -EPICK_AN_ERRNO, "Access Denied"},
+ { EFI_NO_RESPONSE, -EPICK_AN_ERRNO, "No Response"},
+ { EFI_NO_MAPPING, -EPICK_AN_ERRNO, "No mapping"},
+ { EFI_TIMEOUT, -EPICK_AN_ERRNO, "Time out"},
+ { EFI_NOT_STARTED, -EPICK_AN_ERRNO, "Not started"},
+ { EFI_ALREADY_STARTED, -EPICK_AN_ERRNO, "Already started"},
+#endif
+ { EFI_ABORTED, -EINTR, "Aborted"},
+#if 0
+ { EFI_ICMP_ERROR, -EPICK_AN_ERRNO, "ICMP Error"},
+ { EFI_TFTP_ERROR, -EPICK_AN_ERRNO, "TFTP Error"},
+ { EFI_PROTOCOL_ERROR, -EPICK_AN_ERRNO, "Protocol Error"},
+ { EFI_INCOMPATIBLE_VERSION, -EPICK_AN_ERRNO, "Incompatible Version"},
+#endif
+ { EFI_SECURITY_VIOLATION, -EACCES, "Security Policy Violation"},
+#if 0
+ { EFI_CRC_ERROR, -EPICK_AN_ERRNO, "CRC Error"},
+ { EFI_END_OF_MEDIA, -EPICK_AN_ERRNO, "End of Media"},
+ { EFI_END_OF_FILE, -EPICK_AN_ERRNO, "End of File"},
+ { EFI_INVALID_LANGUAGE, -EPICK_AN_ERRNO, "Invalid Languages"},
+ { EFI_COMPROMISED_DATA, -EPICK_AN_ERRNO, "Compromised Data"},
+
+ // warnings
+ { EFI_WARN_UNKOWN_GLYPH, -EPICK_AN_ERRNO, "Warning Unknown Glyph"},
+ { EFI_WARN_DELETE_FAILURE, -EPICK_AN_ERRNO, "Warning Delete Failure"},
+ { EFI_WARN_WRITE_FAILURE, -EPICK_AN_ERRNO, "Warning Write Failure"},
+ { EFI_WARN_BUFFER_TOO_SMALL, -EPICK_AN_ERRNO, "Warning Buffer Too Small"},
+#endif
+};
+
+static int
+efi_status_cmp_bsearch(const void *key, const void *item)
+{
+ u64 status = (u64)(uintptr_t)key;
+ struct efi_error_code *code = (struct efi_error_code *)item;
+
+ if (status < code->status)
+ return -1;
+ if (status > code->status)
+ return 1;
+ return 0;
+}
+
int efi_status_to_err(efi_status_t status)
{
- int err;
-
- switch (status) {
- case EFI_SUCCESS:
- err = 0;
- break;
- case EFI_INVALID_PARAMETER:
- err = -EINVAL;
- break;
- case EFI_OUT_OF_RESOURCES:
- err = -ENOSPC;
- break;
- case EFI_DEVICE_ERROR:
- err = -EIO;
- break;
- case EFI_WRITE_PROTECTED:
- err = -EROFS;
- break;
- case EFI_SECURITY_VIOLATION:
- err = -EACCES;
- break;
- case EFI_NOT_FOUND:
- err = -ENOENT;
- break;
- case EFI_ABORTED:
- err = -EINTR;
- break;
- default:
- err = -EINVAL;
- }
+ struct efi_error_code *found;
+ size_t num = sizeof(efi_error_codes) / sizeof(struct efi_error_code);
- return err;
+ found = bsearch((void *)(uintptr_t)status, efi_error_codes,
+ sizeof(struct efi_error_code), num,
+ efi_status_cmp_bsearch);
+ if (!found)
+ return -EINVAL;
+ return found->errno;
+}
+
+const char *
+efi_status_to_str(efi_status_t status)
+{
+ struct efi_error_code *found;
+ size_t num = sizeof(efi_error_codes) / sizeof(struct efi_error_code);
+
+ found = bsearch((void *)(uintptr_t)status, efi_error_codes,
+ sizeof(struct efi_error_code), num,
+ efi_status_cmp_bsearch);
+ if (!found)
+ return "Unknown error code";
+ return found->description;
}
EXPORT_SYMBOL_GPL(efi_status_to_err);
diff --git a/drivers/firmware/efi/secureboot.c b/drivers/firmware/efi/secureboot.c
new file mode 100644
index 000000000000..de0a3714a5d4
--- /dev/null
+++ b/drivers/firmware/efi/secureboot.c
@@ -0,0 +1,38 @@
+/* Core kernel secure boot support.
+ *
+ * Copyright (C) 2017 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/efi.h>
+#include <linux/kernel.h>
+#include <linux/printk.h>
+
+/*
+ * Decide what to do when UEFI secure boot mode is enabled.
+ */
+void __init efi_set_secure_boot(enum efi_secureboot_mode mode)
+{
+ if (efi_enabled(EFI_BOOT)) {
+ switch (mode) {
+ case efi_secureboot_mode_disabled:
+ pr_info("Secure boot disabled\n");
+ break;
+ case efi_secureboot_mode_enabled:
+ set_bit(EFI_SECURE_BOOT, &efi.flags);
+ pr_info("Secure boot enabled\n");
+ break;
+ default:
+ pr_warn("Secure boot could not be determined (mode %u)\n",
+ mode);
+ break;
+ }
+ }
+}
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index d4af17fdba46..154f0403cbf4 100644
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -321,21 +321,12 @@ static int rmi_input_event(struct hid_device *hdev, u8 *data, int size)
{
struct rmi_data *hdata = hid_get_drvdata(hdev);
struct rmi_device *rmi_dev = hdata->xport.rmi_dev;
- unsigned long flags;
if (!(test_bit(RMI_STARTED, &hdata->flags)))
return 0;
- pm_wakeup_event(hdev->dev.parent, 0);
-
- local_irq_save(flags);
-
rmi_set_attn_data(rmi_dev, data[1], &data[2], size - 2);
- generic_handle_irq(hdata->rmi_irq);
-
- local_irq_restore(flags);
-
return 1;
}
@@ -589,56 +580,6 @@ static const struct rmi_transport_ops hid_rmi_ops = {
.reset = rmi_hid_reset,
};
-static void rmi_irq_teardown(void *data)
-{
- struct rmi_data *hdata = data;
- struct irq_domain *domain = hdata->domain;
-
- if (!domain)
- return;
-
- irq_dispose_mapping(irq_find_mapping(domain, 0));
-
- irq_domain_remove(domain);
- hdata->domain = NULL;
- hdata->rmi_irq = 0;
-}
-
-static int rmi_irq_map(struct irq_domain *h, unsigned int virq,
- irq_hw_number_t hw_irq_num)
-{
- irq_set_chip_and_handler(virq, &dummy_irq_chip, handle_simple_irq);
-
- return 0;
-}
-
-static const struct irq_domain_ops rmi_irq_ops = {
- .map = rmi_irq_map,
-};
-
-static int rmi_setup_irq_domain(struct hid_device *hdev)
-{
- struct rmi_data *hdata = hid_get_drvdata(hdev);
- int ret;
-
- hdata->domain = irq_domain_create_linear(hdev->dev.fwnode, 1,
- &rmi_irq_ops, hdata);
- if (!hdata->domain)
- return -ENOMEM;
-
- ret = devm_add_action_or_reset(&hdev->dev, &rmi_irq_teardown, hdata);
- if (ret)
- return ret;
-
- hdata->rmi_irq = irq_create_mapping(hdata->domain, 0);
- if (hdata->rmi_irq <= 0) {
- hid_err(hdev, "Can't allocate an IRQ\n");
- return hdata->rmi_irq < 0 ? hdata->rmi_irq : -ENXIO;
- }
-
- return 0;
-}
-
static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct rmi_data *data = NULL;
@@ -711,18 +652,11 @@ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id)
mutex_init(&data->page_mutex);
- ret = rmi_setup_irq_domain(hdev);
- if (ret) {
- hid_err(hdev, "failed to allocate IRQ domain\n");
- return ret;
- }
-
if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS)
rmi_hid_pdata.gpio_data.disable = true;
data->xport.dev = hdev->dev.parent;
data->xport.pdata = rmi_hid_pdata;
- data->xport.pdata.irq = data->rmi_irq;
data->xport.proto_name = "hid";
data->xport.ops = &hid_rmi_ops;
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index ce1995a2827f..57f9e9de4747 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -10,6 +10,7 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/device.h>
+#include <linux/dmi.h>
#include <linux/io.h>
#include <linux/err.h>
#include <linux/fs.h>
@@ -2343,6 +2344,16 @@ static const struct amba_id etm4_ids[] = {
{},
};
+static const struct dmi_system_id broken_coresight[] = {
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "HPE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Apollo 70"),
+ },
+ },
+ { } /* terminating entry */
+};
+
MODULE_DEVICE_TABLE(amba, etm4_ids);
static struct amba_driver etm4x_amba_driver = {
@@ -2412,6 +2423,11 @@ static int __init etm4x_init(void)
{
int ret;
+ if (dmi_check_system(broken_coresight)) {
+ pr_info("ETM4 disabled due to firmware bug\n");
+ return 0;
+ }
+
ret = etm4_pm_setup();
/* etm4_pm_setup() does its own cleanup - exit on error */
@@ -2438,6 +2454,9 @@ static int __init etm4x_init(void)
static void __exit etm4x_exit(void)
{
+ if (dmi_check_system(broken_coresight))
+ return;
+
amba_driver_unregister(&etm4x_amba_driver);
platform_driver_unregister(&etm4_platform_driver);
etm4_pm_clear();
diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c
index 258d5fe3d395..f7298e3dc8f3 100644
--- a/drivers/input/rmi4/rmi_driver.c
+++ b/drivers/input/rmi4/rmi_driver.c
@@ -182,34 +182,47 @@ void rmi_set_attn_data(struct rmi_device *rmi_dev, unsigned long irq_status,
attn_data.data = fifo_data;
kfifo_put(&drvdata->attn_fifo, attn_data);
+
+ schedule_work(&drvdata->attn_work);
}
EXPORT_SYMBOL_GPL(rmi_set_attn_data);
-static irqreturn_t rmi_irq_fn(int irq, void *dev_id)
+static void attn_callback(struct work_struct *work)
{
- struct rmi_device *rmi_dev = dev_id;
- struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
+ struct rmi_driver_data *drvdata = container_of(work,
+ struct rmi_driver_data,
+ attn_work);
struct rmi4_attn_data attn_data = {0};
int ret, count;
count = kfifo_get(&drvdata->attn_fifo, &attn_data);
- if (count) {
- *(drvdata->irq_status) = attn_data.irq_status;
- drvdata->attn_data = attn_data;
- }
+ if (!count)
+ return;
- ret = rmi_process_interrupt_requests(rmi_dev);
+ *(drvdata->irq_status) = attn_data.irq_status;
+ drvdata->attn_data = attn_data;
+
+ ret = rmi_process_interrupt_requests(drvdata->rmi_dev);
if (ret)
- rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev,
+ rmi_dbg(RMI_DEBUG_CORE, &drvdata->rmi_dev->dev,
"Failed to process interrupt request: %d\n", ret);
- if (count) {
- kfree(attn_data.data);
- drvdata->attn_data.data = NULL;
- }
+ kfree(attn_data.data);
+ drvdata->attn_data.data = NULL;
if (!kfifo_is_empty(&drvdata->attn_fifo))
- return rmi_irq_fn(irq, dev_id);
+ schedule_work(&drvdata->attn_work);
+}
+
+static irqreturn_t rmi_irq_fn(int irq, void *dev_id)
+{
+ struct rmi_device *rmi_dev = dev_id;
+ int ret;
+
+ ret = rmi_process_interrupt_requests(rmi_dev);
+ if (ret)
+ rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev,
+ "Failed to process interrupt request: %d\n", ret);
return IRQ_HANDLED;
}
@@ -217,7 +230,6 @@ static irqreturn_t rmi_irq_fn(int irq, void *dev_id)
static int rmi_irq_init(struct rmi_device *rmi_dev)
{
struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev);
- struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
int irq_flags = irq_get_trigger_type(pdata->irq);
int ret;
@@ -235,8 +247,6 @@ static int rmi_irq_init(struct rmi_device *rmi_dev)
return ret;
}
- data->enabled = true;
-
return 0;
}
@@ -886,23 +896,27 @@ void rmi_enable_irq(struct rmi_device *rmi_dev, bool clear_wake)
if (data->enabled)
goto out;
- enable_irq(irq);
- data->enabled = true;
- if (clear_wake && device_may_wakeup(rmi_dev->xport->dev)) {
- retval = disable_irq_wake(irq);
- if (retval)
- dev_warn(&rmi_dev->dev,
- "Failed to disable irq for wake: %d\n",
- retval);
- }
+ if (irq) {
+ enable_irq(irq);
+ data->enabled = true;
+ if (clear_wake && device_may_wakeup(rmi_dev->xport->dev)) {
+ retval = disable_irq_wake(irq);
+ if (retval)
+ dev_warn(&rmi_dev->dev,
+ "Failed to disable irq for wake: %d\n",
+ retval);
+ }
- /*
- * Call rmi_process_interrupt_requests() after enabling irq,
- * otherwise we may lose interrupt on edge-triggered systems.
- */
- irq_flags = irq_get_trigger_type(pdata->irq);
- if (irq_flags & IRQ_TYPE_EDGE_BOTH)
- rmi_process_interrupt_requests(rmi_dev);
+ /*
+ * Call rmi_process_interrupt_requests() after enabling irq,
+ * otherwise we may lose interrupt on edge-triggered systems.
+ */
+ irq_flags = irq_get_trigger_type(pdata->irq);
+ if (irq_flags & IRQ_TYPE_EDGE_BOTH)
+ rmi_process_interrupt_requests(rmi_dev);
+ } else {
+ data->enabled = true;
+ }
out:
mutex_unlock(&data->enabled_mutex);
@@ -922,20 +936,22 @@ void rmi_disable_irq(struct rmi_device *rmi_dev, bool enable_wake)
goto out;
data->enabled = false;
- disable_irq(irq);
- if (enable_wake && device_may_wakeup(rmi_dev->xport->dev)) {
- retval = enable_irq_wake(irq);
- if (retval)
- dev_warn(&rmi_dev->dev,
- "Failed to enable irq for wake: %d\n",
- retval);
- }
-
- /* make sure the fifo is clean */
- while (!kfifo_is_empty(&data->attn_fifo)) {
- count = kfifo_get(&data->attn_fifo, &attn_data);
- if (count)
- kfree(attn_data.data);
+ if (irq) {
+ disable_irq(irq);
+ if (enable_wake && device_may_wakeup(rmi_dev->xport->dev)) {
+ retval = enable_irq_wake(irq);
+ if (retval)
+ dev_warn(&rmi_dev->dev,
+ "Failed to enable irq for wake: %d\n",
+ retval);
+ }
+ } else {
+ /* make sure the fifo is clean */
+ while (!kfifo_is_empty(&data->attn_fifo)) {
+ count = kfifo_get(&data->attn_fifo, &attn_data);
+ if (count)
+ kfree(attn_data.data);
+ }
}
out:
@@ -981,6 +997,8 @@ static int rmi_driver_remove(struct device *dev)
irq_domain_remove(data->irqdomain);
data->irqdomain = NULL;
+ cancel_work_sync(&data->attn_work);
+
rmi_f34_remove_sysfs(rmi_dev);
rmi_free_function_list(rmi_dev);
@@ -1219,9 +1237,15 @@ static int rmi_driver_probe(struct device *dev)
}
}
- retval = rmi_irq_init(rmi_dev);
- if (retval < 0)
- goto err_destroy_functions;
+ if (pdata->irq) {
+ retval = rmi_irq_init(rmi_dev);
+ if (retval < 0)
+ goto err_destroy_functions;
+ }
+
+ data->enabled = true;
+
+ INIT_WORK(&data->attn_work, attn_callback);
if (data->f01_container->dev.driver) {
/* Driver already bound, so enable ATTN now. */
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index d14413916f93..ff6cbc3fa509 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -8,6 +8,7 @@
#include <linux/amba/bus.h>
#include <linux/device.h>
+#include <linux/dmi.h>
#include <linux/kernel.h>
#include <linux/bits.h>
#include <linux/bug.h>
@@ -3095,6 +3096,27 @@ int iommu_dev_disable_feature(struct device *dev, enum iommu_dev_features feat)
}
EXPORT_SYMBOL_GPL(iommu_dev_disable_feature);
+#ifdef CONFIG_ARM64
+static int __init iommu_quirks(void)
+{
+ const char *vendor, *name;
+
+ vendor = dmi_get_system_info(DMI_SYS_VENDOR);
+ name = dmi_get_system_info(DMI_PRODUCT_NAME);
+
+ if (vendor &&
+ (strncmp(vendor, "GIGABYTE", 8) == 0 && name &&
+ (strncmp(name, "R120", 4) == 0 ||
+ strncmp(name, "R270", 4) == 0))) {
+ pr_warn("Gigabyte %s detected, force iommu passthrough mode", name);
+ iommu_def_domain_type = IOMMU_DOMAIN_IDENTITY;
+ }
+
+ return 0;
+}
+arch_initcall(iommu_quirks);
+#endif
+
/**
* iommu_setup_default_domain - Set the default_domain for the group
* @group: Group to change
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 300f8e955a53..9636f3391891 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -5383,6 +5383,10 @@ static void mptsas_remove(struct pci_dev *pdev)
}
static struct pci_device_id mptsas_pci_table[] = {
+#ifdef CONFIG_RHEL_DIFFERENCES
+ { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068,
+ PCI_VENDOR_ID_VMWARE, PCI_ANY_ID },
+#else
{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1064,
PCI_ANY_ID, PCI_ANY_ID },
{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068,
@@ -5395,6 +5399,7 @@ static struct pci_device_id mptsas_pci_table[] = {
PCI_ANY_ID, PCI_ANY_ID },
{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068_820XELP,
PCI_ANY_ID, PCI_ANY_ID },
+#endif
{0} /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, mptsas_pci_table);
diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c
index 6c5920db1e9d..dfbc97b68e6a 100644
--- a/drivers/message/fusion/mptspi.c
+++ b/drivers/message/fusion/mptspi.c
@@ -1238,12 +1238,17 @@ static struct spi_function_template mptspi_transport_functions = {
*/
static struct pci_device_id mptspi_pci_table[] = {
+#ifdef CONFIG_RHEL_DIFFERENCES
+ { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030,
+ PCI_VENDOR_ID_VMWARE, PCI_ANY_ID },
+#else
{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030,
PCI_ANY_ID, PCI_ANY_ID },
{ PCI_VENDOR_ID_ATTO, MPI_MANUFACTPAGE_DEVID_53C1030,
PCI_ANY_ID, PCI_ANY_ID },
{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035,
PCI_ANY_ID, PCI_ANY_ID },
+#endif
{0} /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, mptspi_pci_table);
@@ -1534,6 +1539,7 @@ mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
0, 0, 0, 0, 5);
scsi_scan_host(sh);
+
return 0;
out_mptspi_probe:
diff --git a/drivers/net/wireguard/main.c b/drivers/net/wireguard/main.c
index ee4da9ab8013..d395d11eadc4 100644
--- a/drivers/net/wireguard/main.c
+++ b/drivers/net/wireguard/main.c
@@ -12,6 +12,7 @@
#include <uapi/linux/wireguard.h>
+#include <linux/fips.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/genetlink.h>
@@ -21,6 +22,11 @@ static int __init wg_mod_init(void)
{
int ret;
+#ifdef CONFIG_RHEL_DIFFERENCES
+ if (fips_enabled)
+ return -EOPNOTSUPP;
+#endif
+
ret = wg_allowedips_slab_init();
if (ret < 0)
goto err_allowedips;
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 0a96362912ce..d99b3bc5f649 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -252,6 +252,9 @@ void nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl)
static blk_status_t nvme_error_status(u16 status)
{
+ if (unlikely(status & NVME_SC_DNR))
+ return BLK_STS_TARGET;
+
switch (status & 0x7ff) {
case NVME_SC_SUCCESS:
return BLK_STS_OK;
@@ -366,6 +369,7 @@ enum nvme_disposition {
COMPLETE,
RETRY,
FAILOVER,
+ FAILUP,
AUTHENTICATE,
};
@@ -377,15 +381,16 @@ static inline enum nvme_disposition nvme_decide_disposition(struct request *req)
if ((nvme_req(req)->status & 0x7ff) == NVME_SC_AUTH_REQUIRED)
return AUTHENTICATE;
- if (blk_noretry_request(req) ||
+ if ((req->cmd_flags & (REQ_FAILFAST_DEV | REQ_FAILFAST_DRIVER)) ||
(nvme_req(req)->status & NVME_SC_DNR) ||
nvme_req(req)->retries >= nvme_max_retries)
return COMPLETE;
- if (req->cmd_flags & REQ_NVME_MPATH) {
+ if (req->cmd_flags & (REQ_NVME_MPATH | REQ_FAILFAST_TRANSPORT)) {
if (nvme_is_path_error(nvme_req(req)->status) ||
blk_queue_dying(req->q))
- return FAILOVER;
+ return (req->cmd_flags & REQ_NVME_MPATH) ?
+ FAILOVER : FAILUP;
} else {
if (blk_queue_dying(req->q))
return COMPLETE;
@@ -422,6 +427,14 @@ static inline void nvme_end_req(struct request *req)
blk_mq_end_request(req, status);
}
+static inline void nvme_failup_req(struct request *req)
+{
+ nvme_update_ana(req);
+
+ nvme_req(req)->status = NVME_SC_HOST_PATH_ERROR;
+ nvme_end_req(req);
+}
+
void nvme_complete_rq(struct request *req)
{
struct nvme_ctrl *ctrl = nvme_req(req)->ctrl;
@@ -451,6 +464,9 @@ void nvme_complete_rq(struct request *req)
case FAILOVER:
nvme_failover_req(req);
return;
+ case FAILUP:
+ nvme_failup_req(req);
+ return;
case AUTHENTICATE:
#ifdef CONFIG_NVME_HOST_AUTH
queue_work(nvme_wq, &ctrl->dhchap_auth_work);
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 74de1e64aeea..1b0e59c232f8 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -80,14 +80,10 @@ void nvme_mpath_start_freeze(struct nvme_subsystem *subsys)
blk_freeze_queue_start(h->disk->queue);
}
-void nvme_failover_req(struct request *req)
+void nvme_update_ana(struct request *req)
{
struct nvme_ns *ns = req->q->queuedata;
u16 status = nvme_req(req)->status & 0x7ff;
- unsigned long flags;
- struct bio *bio;
-
- nvme_mpath_clear_current_path(ns);
/*
* If we got back an ANA error, we know the controller is alive but not
@@ -98,6 +94,16 @@ void nvme_failover_req(struct request *req)
set_bit(NVME_NS_ANA_PENDING, &ns->flags);
queue_work(nvme_wq, &ns->ctrl->ana_work);
}
+}
+
+void nvme_failover_req(struct request *req)
+{
+ struct nvme_ns *ns = req->q->queuedata;
+ unsigned long flags;
+ struct bio *bio;
+
+ nvme_mpath_clear_current_path(ns);
+ nvme_update_ana(req);
spin_lock_irqsave(&ns->head->requeue_lock, flags);
for (bio = req->bio; bio; bio = bio->bi_next) {
@@ -913,8 +919,7 @@ int nvme_mpath_init_identify(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
int error = 0;
/* check if multipath is enabled and we have the capability */
- if (!multipath || !ctrl->subsys ||
- !(ctrl->subsys->cmic & NVME_CTRL_CMIC_ANA))
+ if (!ctrl->subsys || !(ctrl->subsys->cmic & NVME_CTRL_CMIC_ANA))
return 0;
if (!ctrl->max_namespaces ||
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 7b87763e2f8a..b25333a39ed7 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -919,6 +919,7 @@ void nvme_mpath_wait_freeze(struct nvme_subsystem *subsys);
void nvme_mpath_start_freeze(struct nvme_subsystem *subsys);
void nvme_mpath_default_iopolicy(struct nvme_subsystem *subsys);
void nvme_failover_req(struct request *req);
+void nvme_update_ana(struct request *req);
void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl);
int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl,struct nvme_ns_head *head);
void nvme_mpath_add_disk(struct nvme_ns *ns, __le32 anagrpid);
@@ -961,6 +962,9 @@ static inline bool nvme_ctrl_use_ana(struct nvme_ctrl *ctrl)
static inline void nvme_failover_req(struct request *req)
{
}
+static inline void nvme_update_ana(struct request *req)
+{
+}
static inline void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl)
{
}
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 51ec9e7e784f..8c3713edc7a6 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -19,6 +19,7 @@
#include <linux/kexec.h>
#include <linux/of_device.h>
#include <linux/acpi.h>
+#include <linux/kernel.h>
#include <linux/dma-map-ops.h>
#include <linux/iommu.h>
#include "pci.h"
@@ -321,6 +322,12 @@ static long local_pci_probe(void *_ddi)
*/
pm_runtime_get_sync(dev);
pci_dev->driver = pci_drv;
+
+#ifdef CONFIG_RHEL_DIFFERENCES
+ if (pci_rh_check_status(pci_dev))
+ return -EACCES;
+#endif
+
rc = pci_drv->probe(pci_dev, ddi->id);
if (!rc)
return rc;
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index d797df6e5f3e..a6921ee1535a 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4433,6 +4433,30 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9000,
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9084,
quirk_bridge_cavm_thrx2_pcie_root);
+/*
+ * PCI BAR 5 is not setup correctly for the on-board AHCI controller
+ * on Broadcom's Vulcan processor. Added a quirk to fix BAR 5 by
+ * using BAR 4's resources which are populated correctly and NOT
+ * actually used by the AHCI controller.
+ */
+static void quirk_fix_vulcan_ahci_bars(struct pci_dev *dev)
+{
+ struct resource *r = &dev->resource[4];
+
+ if (!(r->flags & IORESOURCE_MEM) || (r->start == 0))
+ return;
+
+ /* Set BAR5 resource to BAR4 */
+ dev->resource[5] = *r;
+
+ /* Update BAR5 in pci config space */
+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_5, r->start);
+
+ /* Clear BAR4's resource */
+ memset(r, 0, sizeof(*r));
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9027, quirk_fix_vulcan_ahci_bars);
+
/*
* Intersil/Techwell TW686[4589]-based video capture cards have an empty (zero)
* class code. Fix it.
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 68f4dbcfff49..90a6070a1332 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -77,6 +77,7 @@ char aac_driver_version[] = AAC_DRIVER_FULL_VERSION;
* Note: The last field is used to index into aac_drivers below.
*/
static const struct pci_device_id aac_pci_tbl[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
{ 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */
{ 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */
{ 0x1028, 0x0003, 0x1028, 0x0003, 0, 0, 2 }, /* PERC 3/Si (SlimFast/PERC3Si */
@@ -144,6 +145,7 @@ static const struct pci_device_id aac_pci_tbl[] = {
{ 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */
{ 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */
{ 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */
+#endif
{ 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Series 6 (Tupelo) */
{ 0x9005, 0x028c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 63 }, /* Adaptec PMC Series 7 (Denali) */
{ 0x9005, 0x028d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 64 }, /* Adaptec PMC Series 8 */
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 06acb5ff609e..a54ea7cf7d6e 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -387,11 +387,13 @@ static int beiscsi_eh_device_reset(struct scsi_cmnd *sc)
/*------------------- PCI Driver operations and data ----------------- */
static const struct pci_device_id beiscsi_pci_id_table[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
{ PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
{ PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) },
+#endif
{ PCI_DEVICE(ELX_VENDOR_ID, OC_SKH_ID1) },
{ 0 }
};
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index af18d20f3079..0cebae77fd00 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -82,7 +82,9 @@ MODULE_DESCRIPTION("Driver for HP Smart Array Controller version " \
HPSA_DRIVER_VERSION);
MODULE_VERSION(HPSA_DRIVER_VERSION);
MODULE_LICENSE("GPL");
+#ifndef CONFIG_RHEL_DIFFERENCES
MODULE_ALIAS("cciss");
+#endif
static int hpsa_simple_mode;
module_param(hpsa_simple_mode, int, S_IRUGO|S_IWUSR);
@@ -144,10 +146,12 @@ static const struct pci_device_id hpsa_pci_device_id[] = {
{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x007D},
{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0088},
{PCI_VENDOR_ID_HP, 0x333f, 0x103c, 0x333f},
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0},
{PCI_VENDOR_ID_COMPAQ, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0},
+#endif
{0,}
};
diff --git a/drivers/scsi/lpfc/lpfc_ids.h b/drivers/scsi/lpfc/lpfc_ids.h
index 0b1616e93cf4..85fc52038a82 100644
--- a/drivers/scsi/lpfc/lpfc_ids.h
+++ b/drivers/scsi/lpfc/lpfc_ids.h
@@ -24,6 +24,7 @@
#include <linux/pci.h>
const struct pci_device_id lpfc_id_table[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
@@ -54,10 +55,13 @@ const struct pci_device_id lpfc_id_table[] = {
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
PCI_ANY_ID, PCI_ANY_ID, },
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
@@ -68,6 +72,7 @@ const struct pci_device_id lpfc_id_table[] = {
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
PCI_ANY_ID, PCI_ANY_ID, },
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
@@ -78,6 +83,7 @@ const struct pci_device_id lpfc_id_table[] = {
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
@@ -90,6 +96,7 @@ const struct pci_device_id lpfc_id_table[] = {
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
PCI_ANY_ID, PCI_ANY_ID, },
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
@@ -100,18 +107,23 @@ const struct pci_device_id lpfc_id_table[] = {
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
PCI_ANY_ID, PCI_ANY_ID, },
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
PCI_ANY_ID, PCI_ANY_ID, },
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_G6_FC,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_G7_FC,
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 3d4f13da1ae8..7fdf37db9969 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -149,6 +149,7 @@ megasas_set_ld_removed_by_fw(struct megasas_instance *instance);
*/
static struct pci_device_id megasas_pci_table[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
/* xscale IOP */
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},
@@ -157,16 +158,19 @@ static struct pci_device_id megasas_pci_table[] = {
/* ppc IOP */
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)},
/* gen2*/
+#endif
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)},
/* gen2*/
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)},
/* skinny*/
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)},
/* skinny*/
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},
/* xscale IOP, vega */
{PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
/* xscale IOP */
+#endif
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},
/* Fusion */
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)},
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 51b5788da040..821f2a66df47 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -12599,6 +12599,7 @@ bool scsih_ncq_prio_supp(struct scsi_device *sdev)
* The pci device ids are defined in mpi/mpi2_cnfg.h.
*/
static const struct pci_device_id mpt3sas_pci_table[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
/* Spitfire ~ 2004 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
PCI_ANY_ID, PCI_ANY_ID },
@@ -12617,6 +12618,7 @@ static const struct pci_device_id mpt3sas_pci_table[] = {
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
PCI_ANY_ID, PCI_ANY_ID },
+#endif
/* Thunderbolt ~ 2208 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
PCI_ANY_ID, PCI_ANY_ID },
@@ -12641,9 +12643,11 @@ static const struct pci_device_id mpt3sas_pci_table[] = {
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP_1,
PCI_ANY_ID, PCI_ANY_ID },
+#ifndef CONFIG_RHEL_DIFFERENCES
/* SSS6200 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200,
PCI_ANY_ID, PCI_ANY_ID },
+#endif
/* Fury ~ 3004 and 3008 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004,
PCI_ANY_ID, PCI_ANY_ID },
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index dd674378f2f3..3baebaf2a1d6 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -8122,6 +8122,7 @@ static const struct pci_error_handlers qla2xxx_err_handler = {
};
static struct pci_device_id qla2xxx_pci_tbl[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
@@ -8134,13 +8135,18 @@ static struct pci_device_id qla2xxx_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
+#endif
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
+#ifndef CONFIG_RHEL_DIFFERENCES
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
+#endif
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
+#ifndef CONFIG_RHEL_DIFFERENCES
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
+#endif
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) },
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 675332e49a7b..4a3cbddacef1 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -9865,6 +9865,7 @@ static struct pci_device_id qla4xxx_pci_tbl[] = {
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},
+#ifndef CONFIG_RHEL_DIFFERENCES
{
.vendor = PCI_VENDOR_ID_QLOGIC,
.device = PCI_DEVICE_ID_QLOGIC_ISP8022,
@@ -9883,6 +9884,7 @@ static struct pci_device_id qla4xxx_pci_tbl[] = {
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},
+#endif
{0, 0},
};
MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index bdd0acf7fa3c..2adde1beb158 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -118,6 +118,14 @@ static const char *sd_cache_types[] = {
"write back, no read (daft)"
};
+static const char *sd_probe_types[] = { "async", "sync" };
+
+static char sd_probe_type[6] = "async";
+module_param_string(probe, sd_probe_type, sizeof(sd_probe_type),
+ S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(probe, "async or sync. Setting to 'sync' disables asynchronous "
+ "device number assignments (sda, sdb, ...).");
+
static void sd_set_flush_flag(struct scsi_disk *sdkp)
{
bool wc = false, fua = false;
@@ -4069,6 +4077,8 @@ static int __init init_sd(void)
goto err_out_class;
}
+ if (!strcmp(sd_probe_type, "sync"))
+ sd_template.gendrv.probe_type = PROBE_FORCE_SYNCHRONOUS;
err = scsi_register_driver(&sd_template.gendrv);
if (err)
goto err_out_driver;
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index e38a4124f610..0a607946e5f9 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5806,6 +5806,13 @@ static void hub_event(struct work_struct *work)
(u16) hub->change_bits[0],
(u16) hub->event_bits[0]);
+ /* Don't disconnect USB-SATA on TrimSlice */
+ if (strcmp(dev_name(hdev->bus->controller), "tegra-ehci.0") == 0) {
+ if ((hdev->state == 7) && (hub->change_bits[0] == 0) &&
+ (hub->event_bits[0] == 0x2))
+ hub->event_bits[0] = 0;
+ }
+
/* Lock the device, then check to see if we were
* disconnected while waiting for the lock to succeed. */
usb_lock_device(hdev);
diff --git a/fs/afs/main.c b/fs/afs/main.c
index a14f6013e316..6c20453fdf76 100644
--- a/fs/afs/main.c
+++ b/fs/afs/main.c
@@ -199,6 +199,9 @@ static int __init afs_init(void)
goto error_proc;
}
+#ifdef CONFIG_RHEL_DIFFERENCES
+ mark_partner_supported(KBUILD_MODNAME, THIS_MODULE);
+#endif
return ret;
error_proc:
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 5f60f163bd56..6352c3cf4c3c 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -591,6 +591,9 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
struct inode *inode;
struct erofs_sb_info *sbi;
struct erofs_fs_context *ctx = fc->fs_private;
+#ifdef CONFIG_RHEL_DIFFERENCES
+ static bool printed = false;
+#endif
int err;
sb->s_magic = EROFS_SUPER_MAGIC;
@@ -709,6 +712,12 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
return err;
erofs_info(sb, "mounted with root inode @ nid %llu.", sbi->root_nid);
+#ifdef CONFIG_RHEL_DIFFERENCES
+ if (!printed) {
+ mark_tech_preview("EROFS filesystem", NULL);
+ printed = true;
+ }
+#endif
return 0;
}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 0f931d0c227d..e0234d6f4157 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5610,6 +5610,17 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
atomic_set(&sbi->s_warning_count, 0);
atomic_set(&sbi->s_msg_count, 0);
+#ifdef CONFIG_RHEL_DIFFERENCES
+ if (ext4_has_feature_verity(sb)) {
+ static bool printed = false;
+
+ if (!printed) {
+ mark_tech_preview("fs-verity on ext4", NULL);
+ printed = true;
+ }
+ }
+#endif
+
return 0;
failed_mount10:
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index b164da5e129e..59021b8609a7 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -133,6 +133,7 @@
#define CRYPTO_TFM_REQ_FORBID_WEAK_KEYS 0x00000100
#define CRYPTO_TFM_REQ_MAY_SLEEP 0x00000200
#define CRYPTO_TFM_REQ_MAY_BACKLOG 0x00000400
+#define CRYPTO_TFM_REQ_NEED_RESEED 0x00000800
/*
* Miscellaneous stuff.
diff --git a/include/linux/efi.h b/include/linux/efi.h
index c74f47711f0b..e7bbf3b7a938 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -45,6 +45,8 @@ struct screen_info;
#define EFI_ABORTED (21 | (1UL << (BITS_PER_LONG-1)))
#define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1)))
+#define EFI_IS_ERROR(x) ((x) & (1UL << (BITS_PER_LONG-1)))
+
typedef unsigned long efi_status_t;
typedef u8 efi_bool_t;
typedef u16 efi_char16_t; /* UNICODE character */
@@ -865,6 +867,14 @@ static inline int efi_range_is_wc(unsigned long start, unsigned long len)
#define EFI_MEM_ATTR 10 /* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */
#define EFI_MEM_NO_SOFT_RESERVE 11 /* Is the kernel configured to ignore soft reservations? */
#define EFI_PRESERVE_BS_REGIONS 12 /* Are EFI boot-services memory segments available? */
+#define EFI_SECURE_BOOT 13 /* Are we in Secure Boot mode? */
+
+enum efi_secureboot_mode {
+ efi_secureboot_mode_unset,
+ efi_secureboot_mode_unknown,
+ efi_secureboot_mode_disabled,
+ efi_secureboot_mode_enabled,
+};
#ifdef CONFIG_EFI
/*
@@ -876,6 +886,8 @@ static inline bool efi_enabled(int feature)
}
extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused);
+extern void __init efi_set_secure_boot(enum efi_secureboot_mode mode);
+
bool __pure __efi_soft_reserve_enabled(void);
static inline bool __pure efi_soft_reserve_enabled(void)
@@ -897,6 +909,8 @@ static inline bool efi_enabled(int feature)
static inline void
efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {}
+static inline void efi_set_secure_boot(enum efi_secureboot_mode mode) {}
+
static inline bool efi_soft_reserve_enabled(void)
{
return false;
@@ -911,6 +925,7 @@ static inline void efi_find_mirror(void) {}
#endif
extern int efi_status_to_err(efi_status_t status);
+extern const char *efi_status_to_str(efi_status_t status);
/*
* Variable Attributes
@@ -1127,13 +1142,6 @@ static inline bool efi_runtime_disabled(void) { return true; }
extern void efi_call_virt_check_flags(unsigned long flags, const void *caller);
extern unsigned long efi_call_virt_save_flags(void);
-enum efi_secureboot_mode {
- efi_secureboot_mode_unset,
- efi_secureboot_mode_unknown,
- efi_secureboot_mode_disabled,
- efi_secureboot_mode_enabled,
-};
-
static inline
enum efi_secureboot_mode efi_get_secureboot_mode(efi_get_variable_t *get_var)
{
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index d9ad21058eed..fce9d22d3080 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -441,4 +441,20 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
/* OTHER_WRITABLE? Generally considered a bad idea. */ \
BUILD_BUG_ON_ZERO((perms) & 2) + \
(perms))
+
+struct module;
+
+#ifdef CONFIG_RHEL_DIFFERENCES
+void mark_hardware_unmaintained(const char *driver_name, char *fmt, ...);
+void mark_hardware_deprecated(const char *driver_name, char *fmt, ...);
+void mark_tech_preview(const char *msg, struct module *mod);
+void mark_partner_supported(const char *msg, struct module *mod);
+void init_rh_check_status(char *fn_name);
+#else
+static inline void mark_hardware_unmaintained(const char *driver_name, char *fmt, ...) { }
+static inline void mark_hardware_deprecated(const char *driver_name, char *fmt, ...) { }
+static inline void mark_tech_preview(const char *msg, struct module *mod) { }
+static inline void mark_partner_supported(const char *msg, struct module *mod) { }
+#endif
+
#endif
diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
index 76458b6d53da..b80d5835be72 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h
@@ -411,6 +411,8 @@ LSM_HOOK(void, LSM_RET_VOID, bpf_prog_free_security, struct bpf_prog_aux *aux)
#endif /* CONFIG_BPF_SYSCALL */
LSM_HOOK(int, 0, locked_down, enum lockdown_reason what)
+LSM_HOOK(int, 0, lock_kernel_down, const char *where, enum lockdown_reason level)
+
#ifdef CONFIG_PERF_EVENTS
LSM_HOOK(int, 0, perf_event_open, struct perf_event_attr *attr, int type)
diff --git a/include/linux/module.h b/include/linux/module.h
index 96bc462872c0..910919c76fac 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -418,6 +418,7 @@ struct module {
struct module_attribute *modinfo_attrs;
const char *version;
const char *srcversion;
+ const char *rhelversion;
struct kobject *holders_dir;
/* Exported symbols */
@@ -990,4 +991,8 @@ static inline unsigned long find_kallsyms_symbol_value(struct module *mod,
#endif /* CONFIG_MODULES && CONFIG_KALLSYMS */
+#ifdef CONFIG_RHEL_DIFFERENCES
+void module_rh_check_status(const char * module_name);
+#endif
+
#endif /* _LINUX_MODULE_H */
diff --git a/include/linux/panic.h b/include/linux/panic.h
index 6717b15e798c..8e1d3eae1686 100644
--- a/include/linux/panic.h
+++ b/include/linux/panic.h
@@ -73,7 +73,23 @@ static inline void set_arch_panic_timeout(int timeout, int arch_default_timeout)
#define TAINT_AUX 16
#define TAINT_RANDSTRUCT 17
#define TAINT_TEST 18
-#define TAINT_FLAGS_COUNT 19
+/* Start of Red Hat-specific taint flags */
+#define TAINT_19 19
+#define TAINT_20 20
+#define TAINT_21 21
+#define TAINT_22 22
+#define TAINT_23 23
+#define TAINT_24 24
+#define TAINT_25 25
+#define TAINT_PARTNER_SUPPORTED 26
+#define TAINT_SUPPORT_REMOVED 27
+/* Bits 28 - 31 are reserved for Red Hat use only */
+#define TAINT_RESERVED28 28
+#define TAINT_RESERVED29 29
+#define TAINT_RESERVED30 30
+#define TAINT_UNPRIVILEGED_BPF 31
+/* End of Red Hat-specific taint flags */
+#define TAINT_FLAGS_COUNT 32
#define TAINT_FLAGS_MAX ((1UL << TAINT_FLAGS_COUNT) - 1)
struct taint_flag {
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 7ab0d13672da..c39d66bd2123 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1621,6 +1621,7 @@ int pci_add_dynid(struct pci_driver *drv,
unsigned long driver_data);
const struct pci_device_id *pci_match_id(const struct pci_device_id *ids,
struct pci_dev *dev);
+
int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max,
int pass);
@@ -2681,6 +2682,10 @@ static inline bool pci_is_thunderbolt_attached(struct pci_dev *pdev)
return false;
}
+#ifdef CONFIG_RHEL_DIFFERENCES
+bool pci_rh_check_status(struct pci_dev *pci_dev);
+#endif
+
#if defined(CONFIG_PCIEPORTBUS) || defined(CONFIG_EEH)
void pci_uevent_ers(struct pci_dev *pdev, enum pci_ers_result err_type);
#endif
diff --git a/include/linux/random.h b/include/linux/random.h
index b0a940af4fff..8a52424fd0d5 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -9,6 +9,13 @@
#include <uapi/linux/random.h>
+struct iov_iter;
+
+struct random_extrng {
+ ssize_t (*extrng_read_iter)(struct iov_iter *iter, bool reseed);
+ struct module *owner;
+};
+
struct notifier_block;
void add_device_randomness(const void *buf, size_t len);
@@ -157,6 +164,9 @@ int random_prepare_cpu(unsigned int cpu);
int random_online_cpu(unsigned int cpu);
#endif
+void random_register_extrng(const struct random_extrng *rng);
+void random_unregister_extrng(void);
+
#ifndef MODULE
extern const struct file_operations random_fops, urandom_fops;
#endif
diff --git a/include/linux/rh_kabi.h b/include/linux/rh_kabi.h
new file mode 100644
index 000000000000..5139cb2cabdc
--- /dev/null
+++ b/include/linux/rh_kabi.h
@@ -0,0 +1,541 @@
+/*
+ * rh_kabi.h - Red Hat kABI abstraction header
+ *
+ * Copyright (c) 2014 Don Zickus
+ * Copyright (c) 2015-2020 Jiri Benc
+ * Copyright (c) 2015 Sabrina Dubroca, Hannes Frederic Sowa
+ * Copyright (c) 2016-2018 Prarit Bhargava
+ * Copyright (c) 2017 Paolo Abeni, Larry Woodman
+ *
+ * This file is released under the GPLv2.
+ * See the file COPYING for more details.
+ *
+ * These kabi macros hide the changes from the kabi checker and from the
+ * process that computes the exported symbols' checksums.
+ * They have 2 variants: one (defined under __GENKSYMS__) used when
+ * generating the checksums, and the other used when building the kernel's
+ * binaries.
+ *
+ * The use of these macros does not guarantee that the usage and modification
+ * of code is correct. As with all Red Hat only changes, an engineer must
+ * explain why the use of the macro is valid in the patch containing the
+ * changes.
+ *
+ */
+
+#ifndef _LINUX_RH_KABI_H
+#define _LINUX_RH_KABI_H
+
+#include <linux/kconfig.h>
+#include <linux/compiler.h>
+#include <linux/stringify.h>
+
+/*
+ * NOTE
+ * Unless indicated otherwise, don't use ';' after these macros as it
+ * messes up the kABI checker by changing what the resulting token string
+ * looks like. Instead let the macros add the ';' so it can be properly
+ * hidden from the kABI checker (mainly for RH_KABI_EXTEND, but applied to
+ * most macros for uniformity).
+ *
+ *
+ * RH_KABI_CONST
+ * Adds a new const modifier to a function parameter preserving the old
+ * checksum.
+ *
+ * RH_KABI_ADD_MODIFIER
+ * Adds a new modifier to a function parameter or a typedef, preserving
+ * the old checksum. Useful e.g. for adding rcu annotations or changing
+ * int to unsigned. Beware that this may change the semantics; if you're
+ * sure this is safe, always explain why binary compatibility with 3rd
+ * party modules is retained.
+ *
+ * RH_KABI_DEPRECATE
+ * Marks the element as deprecated and make it unusable by modules while
+ * keeping a hole in its place to preserve binary compatibility.
+ *
+ * RH_KABI_DEPRECATE_FN
+ * Marks the function pointer as deprecated and make it unusable by modules
+ * while keeping a hole in its place to preserve binary compatibility.
+ *
+ * RH_KABI_EXTEND
+ * Adds a new field to a struct. This must always be added to the end of
+ * the struct. Before using this macro, make sure this is actually safe
+ * to do - there is a number of conditions under which it is *not* safe.
+ * In particular (but not limited to), this macro cannot be used:
+ * - if the struct in question is embedded in another struct, or
+ * - if the struct is allocated by drivers either statically or
+ * dynamically, or
+ * - if the struct is allocated together with driver data (an example of
+ * such behavior is struct net_device or struct request).
+ *
+ * RH_KABI_EXTEND_WITH_SIZE
+ * Adds a new element (usually a struct) to a struct and reserves extra
+ * space for the new element. The provided 'size' is the total space to
+ * be added in longs (i.e. it's 8 * 'size' bytes), including the size of
+ * the added element. It is automatically checked that the new element
+ * does not overflow the reserved space, now nor in the future. However,
+ * no attempt is done to check the content of the added element (struct)
+ * for kABI conformance - kABI checking inside the added element is
+ * effectively switched off.
+ * For any struct being added by RH_KABI_EXTEND_WITH_SIZE, it is
+ * recommended its content to be documented as not covered by kABI
+ * guarantee.
+ *
+ * RH_KABI_FILL_HOLE
+ * Fills a hole in a struct.
+ *
+ * Warning: only use if a hole exists for _all_ arches. Use pahole to verify.
+ *
+ * RH_KABI_RENAME
+ * Renames an element without changing its type. This macro can be used in
+ * bitfields, for example.
+ *
+ * NOTE: this macro does not add the final ';'
+ *
+ * RH_KABI_REPLACE
+ * Replaces the _orig field by the _new field. The size of the occupied
+ * space is preserved, it's fine if the _new field is smaller than the
+ * _orig field. If a _new field is larger or has a different alignment,
+ * compilation will abort.
+ *
+ * RH_KABI_REPLACE_SPLIT
+ * Works the same as RH_KABI_REPLACE but replaces a single _orig field by
+ * multiple new fields. The checks for size and alignment done by
+ * RH_KABI_REPLACE are still applied.
+ *
+ * RH_KABI_HIDE_INCLUDE
+ * Hides the given include file from kABI checksum computations. This is
+ * used when a newly added #include makes a previously opaque struct
+ * visible.
+ *
+ * Example usage:
+ * #include RH_KABI_HIDE_INCLUDE(<linux/poll.h>)
+ *
+ * RH_KABI_FAKE_INCLUDE
+ * Pretends inclusion of the given file for kABI checksum computations.
+ * This is used when upstream removed a particular #include but that made
+ * some structures opaque that were previously visible and is causing kABI
+ * checker failures.
+ *
+ * Example usage:
+ * #include RH_KABI_FAKE_INCLUDE(<linux/rhashtable.h>)
+ *
+ * RH_KABI_RESERVE
+ * Adds a reserved field to a struct. This is done prior to kABI freeze
+ * for structs that cannot be expanded later using RH_KABI_EXTEND (for
+ * example because they are embedded in another struct or because they are
+ * allocated by drivers or because they use unusual memory layout). The
+ * size of the reserved field is 'unsigned long' and is assumed to be
+ * 8 bytes.
+ *
+ * The argument is a number unique for the given struct; usually, multiple
+ * RH_KABI_RESERVE macros are added to a struct with numbers starting from
+ * one.
+ *
+ * Example usage:
+ * struct foo {
+ * int a;
+ * RH_KABI_RESERVE(1)
+ * RH_KABI_RESERVE(2)
+ * RH_KABI_RESERVE(3)
+ * RH_KABI_RESERVE(4)
+ * };
+ *
+ * RH_KABI_USE
+ * Uses a previously reserved field or multiple fields. The arguments are
+ * one or more numbers assigned to RH_KABI_RESERVE, followed by a field to
+ * be put in their place. The compiler ensures that the new field is not
+ * larger than the reserved area.
+ *
+ * Example usage:
+ * struct foo {
+ * int a;
+ * RH_KABI_USE(1, int b)
+ * RH_KABI_USE(2, 3, int c[3])
+ * RH_KABI_RESERVE(4)
+ * };
+ *
+ * RH_KABI_USE_SPLIT
+ * Works the same as RH_KABI_USE but replaces a single reserved field by
+ * multiple new fields.
+ *
+ * RH_KABI_AUX_EMBED
+ * RH_KABI_AUX_PTR
+ * Adds an extenstion of a struct in the form of "auxiliary structure".
+ * This is done prior to kABI freeze for structs that cannot be expanded
+ * later using RH_KABI_EXTEND. See also RH_KABI_RESERVED, these two
+ * approaches can (and often are) combined.
+ *
+ * To use this for 'struct foo' (the "base structure"), define a new
+ * structure called 'struct foo_rh'; this new struct is called "auxiliary
+ * structure". Then add RH_KABI_AUX_EMBED or RH_KABI_AUX_PTR to the end
+ * of the base structure. The argument is the name of the base structure,
+ * without the 'struct' keyword.
+ *
+ * RH_KABI_AUX_PTR stores a pointer to the aux structure in the base
+ * struct. The lifecycle of the aux struct needs to be properly taken
+ * care of.
+ *
+ * RH_KABI_AUX_EMBED embeds the aux struct into the base struct. This
+ * cannot be used when the base struct is itself embedded into another
+ * struct, allocated in an array, etc.
+ *
+ * Both approaches (ptr and embed) work correctly even when the aux struct
+ * is allocated by modules. To ensure this, the code responsible for
+ * allocation/assignment of the aux struct has to properly set the size of
+ * the aux struct; see the RH_KABI_AUX_SET_SIZE and RH_KABI_AUX_INIT_SIZE
+ * macros.
+ *
+ * New fields can be later added to the auxiliary structure, always to its
+ * end. Note the auxiliary structure cannot be shrunk in size later (i.e.,
+ * fields cannot be removed, only deprecated). Any code accessing fields
+ * from the aux struct must guard the access using the RH_KABI_AUX macro.
+ * The access itself is then done via a '_rh' field in the base struct.
+ *
+ * The auxiliary structure is not guaranteed for access by modules unless
+ * explicitly commented as such in the declaration of the aux struct
+ * itself or some of its elements.
+ *
+ * Example:
+ *
+ * struct foo_rh {
+ * int newly_added;
+ * };
+ *
+ * struct foo {
+ * bool big_hammer;
+ * RH_KABI_AUX_PTR(foo)
+ * };
+ *
+ * void use(struct foo *f)
+ * {
+ * if (RH_KABI_AUX(f, foo, newly_added))
+ * f->_rh->newly_added = 123;
+ * else
+ * // the field 'newly_added' is not present in the passed
+ * // struct, fall back to old behavior
+ * f->big_hammer = true;
+ * }
+ *
+ * static struct foo_rh my_foo_rh {
+ * .newly_added = 0;
+ * }
+ *
+ * static struct foo my_foo = {
+ * .big_hammer = false,
+ * ._rh = &my_foo_rh,
+ * RH_KABI_AUX_INIT_SIZE(foo)
+ * };
+ *
+ * RH_KABI_USE_AUX_PTR
+ * Creates an auxiliary structure post kABI freeze. This works by using
+ * two reserved fields (thus there has to be two reserved fields still
+ * available) and converting them to RH_KABI_AUX_PTR.
+ *
+ * Example:
+ *
+ * struct foo_rh {
+ * };
+ *
+ * struct foo {
+ * int a;
+ * RH_KABI_RESERVE(1)
+ * RH_KABI_USE_AUX_PTR(2, 3, foo)
+ * };
+ *
+ * RH_KABI_AUX_SET_SIZE
+ * RH_KABI_AUX_INIT_SIZE
+ * Calculates and stores the size of the auxiliary structure.
+ *
+ * RH_KABI_AUX_SET_SIZE is for dynamically allocated base structs,
+ * RH_KABI_AUX_INIT_SIZE is for statically allocated case structs.
+ *
+ * These macros must be called from the allocation (RH_KABI_AUX_SET_SIZE)
+ * or declaration (RH_KABI_AUX_INIT_SIZE) site, regardless of whether
+ * that happens in the kernel or in a module. Without calling one of
+ * these macros, the aux struct will appear to have no fields to the
+ * kernel.
+ *
+ * Note: since RH_KABI_AUX_SET_SIZE is intended to be invoked outside of
+ * a struct definition, it does not add the semicolon and must be
+ * terminated by semicolon by the caller.
+ *
+ * RH_KABI_AUX
+ * Verifies that the given field exists in the given auxiliary structure.
+ * This MUST be called prior to accessing that field; failing to do that
+ * may lead to invalid memory access.
+ *
+ * The first argument is a pointer to the base struct, the second argument
+ * is the name of the base struct (without the 'struct' keyword), the
+ * third argument is the field name.
+ *
+ * This macro works for structs extended by either of RH_KABI_AUX_EMBED,
+ * RH_KABI_AUX_PTR and RH_KABI_USE_AUX_PTR.
+ *
+ * RH_KABI_FORCE_CHANGE
+ * Force change of the symbol checksum. The argument of the macro is a
+ * version for cases we need to do this more than once.
+ *
+ * This macro does the opposite: it changes the symbol checksum without
+ * actually changing anything about the exported symbol. It is useful for
+ * symbols that are not whitelisted, we're changing them in an
+ * incompatible way and want to prevent 3rd party modules to silently
+ * corrupt memory. Instead, by changing the symbol checksum, such modules
+ * won't be loaded by the kernel. This macro should only be used as a
+ * last resort when all other KABI workarounds have failed.
+ *
+ * RH_KABI_EXCLUDE
+ * !!! WARNING: DANGEROUS, DO NOT USE unless you are aware of all the !!!
+ * !!! implications. This should be used ONLY EXCEPTIONALLY and only !!!
+ * !!! under specific circumstances. Very likely, this macro does not !!!
+ * !!! do what you expect it to do. Note that any usage of this macro !!!
+ * !!! MUST be paired with a RH_KABI_FORCE_CHANGE annotation of !!!
+ * !!! a suitable symbol (or an equivalent safeguard) and the commit !!!
+ * !!! log MUST explain why the chosen solution is appropriate. !!!
+ *
+ * Exclude the element from checksum generation. Any such element is
+ * considered not to be part of the kABI whitelist and may be changed at
+ * will. Note however that it's the responsibility of the developer
+ * changing the element to ensure 3rd party drivers using this element
+ * won't panic, for example by not allowing them to be loaded. That can
+ * be achieved by changing another, non-whitelisted symbol they use,
+ * either by nature of the change or by using RH_KABI_FORCE_CHANGE.
+ *
+ * Also note that any change to the element must preserve its size. Change
+ * of the size is not allowed and would constitute a silent kABI breakage.
+ * Beware that the RH_KABI_EXCLUDE macro does not do any size checks.
+ *
+ * RH_KABI_EXCLUDE_WITH_SIZE
+ * Like RH_KABI_EXCLUDE, this macro excludes the element from
+ * checksum generation. The same warnings as for RH_KABI_EXCLUDE
+ * apply: use RH_KABI_FORCE_CHANGE.
+ *
+ * This macro is intended to be used for elements embedded inside
+ * kABI-protected structures (struct, array). In contrast with
+ * RH_KABI_EXCLUDE, this macro reserves extra space, so that the
+ * embedded element can grow without changing the offsets of the
+ * fields that follow. The provided 'size' is the total space to be
+ * added in longs (i.e. it's 8 * 'size' bytes), including the size
+ * of the added element. It is automatically checked that the new
+ * element does not overflow the reserved space, now nor in the
+ * future. The size is also included in the checksum via the
+ * reserved space, to ensure that we don't accidentally change it,
+ * which would change the offsets of the fields that follow.
+ *
+ * RH_KABI_BROKEN_INSERT
+ * RH_KABI_BROKEN_REMOVE
+ * Insert a field to the middle of a struct / delete a field from a struct.
+ * Note that this breaks kABI! It can be done only when it's certain that
+ * no 3rd party driver can validly reach into the struct. A typical
+ * example is a struct that is: both (a) referenced only through a long
+ * chain of pointers from another struct that is part of a whitelisted
+ * symbol and (b) kernel internal only, it should have never been visible
+ * to genksyms in the first place.
+ *
+ * Another example are structs that are explicitly exempt from kABI
+ * guarantee but we did not have enough foresight to use RH_KABI_EXCLUDE.
+ * In this case, the warning for RH_KABI_EXCLUDE applies.
+ *
+ * A detailed explanation of correctness of every RH_KABI_BROKEN_* macro
+ * use is especially important.
+ *
+ * RH_KABI_BROKEN_INSERT_BLOCK
+ * RH_KABI_BROKEN_REMOVE_BLOCK
+ * A version of RH_KABI_BROKEN_INSERT / REMOVE that allows multiple fields
+ * to be inserted or removed together. All fields need to be terminated
+ * by ';' inside(!) the macro parameter. The macro itself must not be
+ * terminated by ';'.
+ *
+ * RH_KABI_BROKEN_REPLACE
+ * Replace a field by a different one without doing any checking. This
+ * allows replacing a field by another with a different size. Similarly
+ * to other RH_KABI_BROKEN macros, use of this indicates a kABI breakage.
+ *
+ * RH_KABI_BROKEN_INSERT_ENUM
+ * RH_KABI_BROKEN_REMOVE_ENUM
+ * Insert a field to the middle of an enumaration type / delete a field from
+ * an enumaration type. Note that this can break kABI especially if the
+ * number of enum fields is used in an array within a structure. It can be
+ * done only when it is certain that no 3rd party driver will use the
+ * enumeration type or a structure that embeds an array with size determined
+ * by an enumeration type.
+ *
+ * RH_KABI_EXTEND_ENUM
+ * Adds a new field to an enumeration type. This must always be added to
+ * the end of the enum. Before using this macro, make sure this is actually
+ * safe to do.
+ */
+
+#undef linux
+#define linux linux
+
+#ifdef __GENKSYMS__
+
+# define RH_KABI_CONST
+# define RH_KABI_ADD_MODIFIER(_new)
+# define RH_KABI_EXTEND(_new)
+# define RH_KABI_FILL_HOLE(_new)
+# define RH_KABI_FORCE_CHANGE(ver) __attribute__((rh_kabi_change ## ver))
+# define RH_KABI_RENAME(_orig, _new) _orig
+# define RH_KABI_HIDE_INCLUDE(_file) <linux/rh_kabi.h>
+# define RH_KABI_FAKE_INCLUDE(_file) _file
+# define RH_KABI_BROKEN_INSERT(_new)
+# define RH_KABI_BROKEN_REMOVE(_orig) _orig;
+# define RH_KABI_BROKEN_INSERT_BLOCK(_new)
+# define RH_KABI_BROKEN_REMOVE_BLOCK(_orig) _orig
+# define RH_KABI_BROKEN_REPLACE(_orig, _new) _orig;
+# define RH_KABI_BROKEN_INSERT_ENUM(_new)
+# define RH_KABI_BROKEN_REMOVE_ENUM(_orig) _orig,
+# define RH_KABI_EXTEND_ENUM(_new)
+
+# define _RH_KABI_DEPRECATE(_type, _orig) _type _orig
+# define _RH_KABI_DEPRECATE_FN(_type, _orig, _args...) _type (*_orig)(_args)
+# define _RH_KABI_REPLACE(_orig, _new) _orig
+# define _RH_KABI_EXCLUDE(_elem)
+
+# define __RH_KABI_CHECK_SIZE(_item, _size)
+
+#else
+
+# define RH_KABI_ALIGN_WARNING ". Disable CONFIG_RH_KABI_SIZE_ALIGN_CHECKS if debugging."
+
+# define RH_KABI_CONST const
+# define RH_KABI_ADD_MODIFIER(_new) _new
+# define RH_KABI_EXTEND(_new) _new;
+# define RH_KABI_FILL_HOLE(_new) _new;
+# define RH_KABI_FORCE_CHANGE(ver)
+# define RH_KABI_RENAME(_orig, _new) _new
+# define RH_KABI_HIDE_INCLUDE(_file) _file
+# define RH_KABI_FAKE_INCLUDE(_file) <linux/rh_kabi.h>
+# define RH_KABI_BROKEN_INSERT(_new) _new;
+# define RH_KABI_BROKEN_REMOVE(_orig)
+# define RH_KABI_BROKEN_INSERT_BLOCK(_new) _new
+# define RH_KABI_BROKEN_REMOVE_BLOCK(_orig)
+# define RH_KABI_BROKEN_REPLACE(_orig, _new) _new;
+# define RH_KABI_BROKEN_INSERT_ENUM(_new) _new,
+# define RH_KABI_BROKEN_REMOVE_ENUM(_orig)
+# define RH_KABI_EXTEND_ENUM(_new) _new,
+
+#if IS_BUILTIN(CONFIG_RH_KABI_SIZE_ALIGN_CHECKS)
+# define __RH_KABI_CHECK_SIZE_ALIGN(_orig, _new) \
+ union { \
+ _Static_assert(sizeof(struct{_new;}) <= sizeof(struct{_orig;}), \
+ __FILE__ ":" __stringify(__LINE__) ": " __stringify(_new) " is larger than " __stringify(_orig) RH_KABI_ALIGN_WARNING); \
+ _Static_assert(__alignof__(struct{_new;}) <= __alignof__(struct{_orig;}), \
+ __FILE__ ":" __stringify(__LINE__) ": " __stringify(_orig) " is not aligned the same as " __stringify(_new) RH_KABI_ALIGN_WARNING); \
+ }
+# define __RH_KABI_CHECK_SIZE(_item, _size) \
+ _Static_assert(sizeof(struct{_item;}) <= _size, \
+ __FILE__ ":" __stringify(__LINE__) ": " __stringify(_item) " is larger than the reserved size (" __stringify(_size) " bytes)" RH_KABI_ALIGN_WARNING);
+#else
+# define __RH_KABI_CHECK_SIZE_ALIGN(_orig, _new)
+# define __RH_KABI_CHECK_SIZE(_item, _size)
+#endif
+
+#define RH_KABI_UNIQUE_ID __PASTE(rh_kabi_hidden_, __LINE__)
+
+# define _RH_KABI_DEPRECATE(_type, _orig) _type rh_reserved_##_orig
+# define _RH_KABI_DEPRECATE_FN(_type, _orig, _args...) \
+ _type (* rh_reserved_##_orig)(_args)
+# define _RH_KABI_REPLACE(_orig, _new) \
+ union { \
+ _new; \
+ struct { \
+ _orig; \
+ } RH_KABI_UNIQUE_ID; \
+ __RH_KABI_CHECK_SIZE_ALIGN(_orig, _new); \
+ }
+
+# define _RH_KABI_EXCLUDE(_elem) _elem
+
+#endif /* __GENKSYMS__ */
+
+# define RH_KABI_DEPRECATE(_type, _orig) _RH_KABI_DEPRECATE(_type, _orig);
+# define RH_KABI_DEPRECATE_FN(_type, _orig, _args...) \
+ _RH_KABI_DEPRECATE_FN(_type, _orig, _args);
+# define RH_KABI_REPLACE(_orig, _new) _RH_KABI_REPLACE(_orig, _new);
+
+#define _RH_KABI_REPLACE1(_new) _new;
+#define _RH_KABI_REPLACE2(_new, ...) _new; _RH_KABI_REPLACE1(__VA_ARGS__)
+#define _RH_KABI_REPLACE3(_new, ...) _new; _RH_KABI_REPLACE2(__VA_ARGS__)
+#define _RH_KABI_REPLACE4(_new, ...) _new; _RH_KABI_REPLACE3(__VA_ARGS__)
+#define _RH_KABI_REPLACE5(_new, ...) _new; _RH_KABI_REPLACE4(__VA_ARGS__)
+#define _RH_KABI_REPLACE6(_new, ...) _new; _RH_KABI_REPLACE5(__VA_ARGS__)
+#define _RH_KABI_REPLACE7(_new, ...) _new; _RH_KABI_REPLACE6(__VA_ARGS__)
+#define _RH_KABI_REPLACE8(_new, ...) _new; _RH_KABI_REPLACE7(__VA_ARGS__)
+#define _RH_KABI_REPLACE9(_new, ...) _new; _RH_KABI_REPLACE8(__VA_ARGS__)
+#define _RH_KABI_REPLACE10(_new, ...) _new; _RH_KABI_REPLACE9(__VA_ARGS__)
+#define _RH_KABI_REPLACE11(_new, ...) _new; _RH_KABI_REPLACE10(__VA_ARGS__)
+#define _RH_KABI_REPLACE12(_new, ...) _new; _RH_KABI_REPLACE11(__VA_ARGS__)
+
+#define RH_KABI_REPLACE_SPLIT(_orig, ...) _RH_KABI_REPLACE(_orig, \
+ struct { __PASTE(_RH_KABI_REPLACE, COUNT_ARGS(__VA_ARGS__))(__VA_ARGS__) });
+
+# define RH_KABI_RESERVE(n) _RH_KABI_RESERVE(n);
+
+#define _RH_KABI_USE1(n, _new) _RH_KABI_RESERVE(n), _new
+#define _RH_KABI_USE2(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE1(__VA_ARGS__)
+#define _RH_KABI_USE3(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE2(__VA_ARGS__)
+#define _RH_KABI_USE4(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE3(__VA_ARGS__)
+#define _RH_KABI_USE5(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE4(__VA_ARGS__)
+#define _RH_KABI_USE6(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE5(__VA_ARGS__)
+#define _RH_KABI_USE7(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE6(__VA_ARGS__)
+#define _RH_KABI_USE8(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE7(__VA_ARGS__)
+#define _RH_KABI_USE9(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE8(__VA_ARGS__)
+#define _RH_KABI_USE10(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE9(__VA_ARGS__)
+#define _RH_KABI_USE11(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE10(__VA_ARGS__)
+#define _RH_KABI_USE12(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE11(__VA_ARGS__)
+
+#define _RH_KABI_USE(...) _RH_KABI_REPLACE(__VA_ARGS__)
+#define RH_KABI_USE(n, ...) _RH_KABI_USE(__PASTE(_RH_KABI_USE, COUNT_ARGS(__VA_ARGS__))(n, __VA_ARGS__));
+
+# define RH_KABI_USE_SPLIT(n, ...) RH_KABI_REPLACE_SPLIT(_RH_KABI_RESERVE(n), __VA_ARGS__)
+
+# define _RH_KABI_RESERVE(n) unsigned long rh_reserved##n
+
+#define RH_KABI_EXCLUDE(_elem) _RH_KABI_EXCLUDE(_elem);
+
+#define RH_KABI_EXCLUDE_WITH_SIZE(_new, _size) \
+ union { \
+ RH_KABI_EXCLUDE(_new) \
+ unsigned long RH_KABI_UNIQUE_ID[_size]; \
+ __RH_KABI_CHECK_SIZE(_new, 8 * (_size)) \
+ };
+
+#define RH_KABI_EXTEND_WITH_SIZE(_new, _size) \
+ RH_KABI_EXTEND(union { \
+ _new; \
+ unsigned long RH_KABI_UNIQUE_ID[_size]; \
+ __RH_KABI_CHECK_SIZE(_new, 8 * (_size)) \
+ })
+
+#define _RH_KABI_AUX_PTR(_struct) \
+ size_t _struct##_size_rh; \
+ _RH_KABI_EXCLUDE(struct _struct##_rh *_rh)
+#define RH_KABI_AUX_PTR(_struct) \
+ _RH_KABI_AUX_PTR(_struct);
+
+#define _RH_KABI_AUX_EMBED(_struct) \
+ size_t _struct##_size_rh; \
+ _RH_KABI_EXCLUDE(struct _struct##_rh _rh)
+#define RH_KABI_AUX_EMBED(_struct) \
+ _RH_KABI_AUX_EMBED(_struct);
+
+#define RH_KABI_USE_AUX_PTR(n1, n2, _struct) \
+ RH_KABI_USE(n1, n2, \
+ struct { RH_KABI_AUX_PTR(_struct) })
+
+#define RH_KABI_AUX_SET_SIZE(_name, _struct) ({ \
+ (_name)->_struct##_size_rh = sizeof(struct _struct##_rh); \
+})
+
+#define RH_KABI_AUX_INIT_SIZE(_struct) \
+ ._struct##_size_rh = sizeof(struct _struct##_rh),
+
+#define RH_KABI_AUX(_ptr, _struct, _field) ({ \
+ size_t __off = offsetof(struct _struct##_rh, _field); \
+ (_ptr)->_struct##_size_rh > __off ? true : false; \
+})
+
+#endif /* _LINUX_RH_KABI_H */
diff --git a/include/linux/rmi.h b/include/linux/rmi.h
index ab7eea01ab42..fff7c5f737fc 100644
--- a/include/linux/rmi.h
+++ b/include/linux/rmi.h
@@ -364,6 +364,7 @@ struct rmi_driver_data {
struct rmi4_attn_data attn_data;
DECLARE_KFIFO(attn_fifo, struct rmi4_attn_data, 16);
+ struct work_struct attn_work;
};
int rmi_register_transport_device(struct rmi_transport_dev *xport);
diff --git a/include/linux/security.h b/include/linux/security.h
index d0eb20f90b26..a99c045730e9 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -494,6 +494,7 @@ int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
int security_locked_down(enum lockdown_reason what);
+int security_lock_kernel_down(const char *where, enum lockdown_reason level);
int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, size_t *uctx_len,
void *val, size_t val_len, u64 id, u64 flags);
#else /* CONFIG_SECURITY */
@@ -1433,6 +1434,10 @@ static inline int security_locked_down(enum lockdown_reason what)
{
return 0;
}
+static inline int security_lock_kernel_down(const char *where, enum lockdown_reason level)
+{
+ return 0;
+}
static inline int lsm_fill_user_ctx(struct lsm_ctx __user *uctx,
size_t *uctx_len, void *val, size_t val_len,
u64 id, u64 flags)
diff --git a/init/main.c b/init/main.c
index e24b0780fdff..e4e1a6ea60ad 100644
--- a/init/main.c
+++ b/init/main.c
@@ -1151,6 +1151,9 @@ static bool __init_or_module initcall_blacklisted(initcall_t fn)
*/
strreplace(fn_name, ' ', '\0');
+#ifdef CONFIG_RHEL_DIFFERENCES
+ init_rh_check_status(fn_name);
+#endif
list_for_each_entry(entry, &blacklisted_initcalls, next) {
if (!strcmp(fn_name, entry->buf)) {
pr_debug("initcall %s blacklisted\n", fn_name);
diff --git a/kernel/Makefile b/kernel/Makefile
index ce105a5558fc..2c2c468fbf91 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -12,6 +12,7 @@ obj-y = fork.o exec_domain.o panic.o \
notifier.o ksysfs.o cred.o reboot.o \
async.o range.o smpboot.o ucount.o regset.o ksyms_common.o
+obj-$(CONFIG_RHEL_DIFFERENCES) += rh_messages.o
obj-$(CONFIG_USERMODE_DRIVER) += usermode_driver.o
obj-$(CONFIG_MULTIUSER) += groups.o
obj-$(CONFIG_VHOST_TASK) += vhost_task.o
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index a1f18681721c..22dbfd6ec0e1 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -26,6 +26,7 @@
#include <linux/ctype.h>
#include <linux/nospec.h>
#include <linux/audit.h>
+#include <linux/init.h>
#include <uapi/linux/btf.h>
#include <linux/pgtable.h>
#include <linux/bpf_lsm.h>
@@ -58,6 +59,23 @@ static DEFINE_SPINLOCK(map_idr_lock);
static DEFINE_IDR(link_idr);
static DEFINE_SPINLOCK(link_idr_lock);
+static int __init unprivileged_bpf_setup(char *str)
+{
+ unsigned long disabled;
+ if (!kstrtoul(str, 0, &disabled))
+ sysctl_unprivileged_bpf_disabled = !!disabled;
+
+ if (!sysctl_unprivileged_bpf_disabled) {
+ pr_warn("Unprivileged BPF has been enabled "
+ "(unprivileged_bpf_disabled=0 has been supplied "
+ "in boot parameters), tainting the kernel");
+ add_taint(TAINT_UNPRIVILEGED_BPF, LOCKDEP_STILL_OK);
+ }
+
+ return 1;
+}
+__setup("unprivileged_bpf_disabled=", unprivileged_bpf_setup);
+
int sysctl_unprivileged_bpf_disabled __read_mostly =
IS_BUILTIN(CONFIG_BPF_UNPRIV_DEFAULT_OFF) ? 2 : 0;
@@ -5776,6 +5794,11 @@ static int bpf_unpriv_handler(struct ctl_table *table, int write,
if (write && !ret) {
if (locked_state && unpriv_enable != 1)
return -EPERM;
+ if (!unpriv_enable) {
+ pr_warn("Unprivileged BPF has been enabled, "
+ "tainting the kernel");
+ add_taint(TAINT_UNPRIVILEGED_BPF, LOCKDEP_STILL_OK);
+ }
*(int *)table->data = unpriv_enable;
}
diff --git a/kernel/module/main.c b/kernel/module/main.c
index 36681911c05a..f0422a91bf7f 100644
--- a/kernel/module/main.c
+++ b/kernel/module/main.c
@@ -528,6 +528,7 @@ static struct module_attribute modinfo_##field = { \
MODINFO_ATTR(version);
MODINFO_ATTR(srcversion);
+MODINFO_ATTR(rhelversion);
static struct {
char name[MODULE_NAME_LEN + 1];
@@ -980,6 +981,7 @@ struct module_attribute *modinfo_attrs[] = {
&module_uevent,
&modinfo_version,
&modinfo_srcversion,
+ &modinfo_rhelversion,
&modinfo_initstate,
&modinfo_coresize,
#ifdef CONFIG_ARCH_WANTS_MODULES_DATA_IN_VMALLOC
@@ -2805,6 +2807,11 @@ static int early_mod_check(struct load_info *info, int flags)
return -EPERM;
}
+#ifdef CONFIG_RHEL_DIFFERENCES
+ if (get_modinfo(info, "intree"))
+ module_rh_check_status(info->name);
+#endif
+
err = rewrite_section_headers(info, flags);
if (err)
return err;
diff --git a/kernel/module/signing.c b/kernel/module/signing.c
index a2ff4242e623..f0d2be1ee4f1 100644
--- a/kernel/module/signing.c
+++ b/kernel/module/signing.c
@@ -61,10 +61,17 @@ int mod_verify_sig(const void *mod, struct load_info *info)
modlen -= sig_len + sizeof(ms);
info->len = modlen;
- return verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len,
+ ret = verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len,
VERIFY_USE_SECONDARY_KEYRING,
VERIFYING_MODULE_SIGNATURE,
NULL, NULL);
+ if (ret == -ENOKEY && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING)) {
+ ret = verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len,
+ VERIFY_USE_PLATFORM_KEYRING,
+ VERIFYING_MODULE_SIGNATURE,
+ NULL, NULL);
+ }
+ return ret;
}
int module_sig_check(struct load_info *info, int flags)
diff --git a/kernel/panic.c b/kernel/panic.c
index 2807639aab51..914c2b14c184 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -483,6 +483,19 @@ const struct taint_flag taint_flags[TAINT_FLAGS_COUNT] = {
[ TAINT_AUX ] = { 'X', ' ', true },
[ TAINT_RANDSTRUCT ] = { 'T', ' ', true },
[ TAINT_TEST ] = { 'N', ' ', true },
+ [ TAINT_19 ] = { '?', '-', false },
+ [ TAINT_20 ] = { '?', '-', false },
+ [ TAINT_21 ] = { '?', '-', false },
+ [ TAINT_22 ] = { '?', '-', false },
+ [ TAINT_23 ] = { '?', '-', false },
+ [ TAINT_24 ] = { '?', '-', false },
+ [ TAINT_25 ] = { '?', '-', false },
+ [ TAINT_PARTNER_SUPPORTED ] = { 'p', ' ', true },
+ [ TAINT_SUPPORT_REMOVED ] = { 'h', ' ', false },
+ [ TAINT_RESERVED28 ] = { '?', '-', false },
+ [ TAINT_RESERVED29 ] = { '?', '-', false },
+ [ TAINT_RESERVED30 ] = { '?', '-', false },
+ [ TAINT_UNPRIVILEGED_BPF ] = { 'u', ' ', false },
};
/**
diff --git a/kernel/rh_messages.c b/kernel/rh_messages.c
new file mode 100644
index 000000000000..bb69e8965748
--- /dev/null
+++ b/kernel/rh_messages.c
@@ -0,0 +1,414 @@
+/*
+ * The following functions are used by Red Hat to indicate to users that
+ * hardware and drivers are unsupported, or have limited support in RHEL major
+ * and minor releases. These functions output loud warning messages to the end
+ * user and should be USED WITH CAUTION.
+ *
+ * Any use of these functions _MUST_ be documented in the RHEL Release Notes,
+ * and have approval of management.
+ *
+ * Generally, the process of disabling a driver or device in RHEL requires the
+ * driver or device to be marked as 'deprecated' in all existing releases, and
+ * then either 'unmaintained' or 'disabled' in a future release.
+ *
+ * In general, deprecated and unmaintained drivers continue to receive security
+ * related fixes until they are disabled.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include "rh_messages.h"
+
+/**
+ * mark_hardware_unmaintained() - Mark hardware as unmaintained.
+ * @driver_name: driver name
+ * @fmt: format for device description
+ * @...: args for device description
+ *
+ * Called to notify users that the device will no longer be tested on a routine
+ * basis and driver code associated with this device is no longer being updated.
+ * Red Hat may, at their own discretion, fix security-related and critical
+ * issues. Support for this device will be disabled in a future major release
+ * and users deploying this device should plan to replace the device in
+ * production systems.
+ *
+ * This function should be used when the driver's usage can be tied to a
+ * specific hardware device. For example, a network device driver loading on a
+ * specific device that is no longer maintained by the manufacturer.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+void __maybe_unused mark_hardware_unmaintained(const char *driver_name, char *fmt, ...)
+{
+ char device_description[DEV_DESC_LEN];
+ va_list args;
+
+ va_start(args, fmt);
+ vsnprintf(device_description, DEV_DESC_LEN, fmt, args);
+ pr_crit(RH_UNMAINT_HW,
+ driver_name, device_description);
+ va_end(args);
+}
+EXPORT_SYMBOL(mark_hardware_unmaintained);
+
+/**
+ * mark_hardware_deprecated() - Mark hardware as deprecated.
+ * @driver_name: driver name
+ * @fmt: format for device description
+ * @...: args for device description
+ *
+ * Called to notify users that support for the device is planned to be
+ * unmaintained in a future major release, and will eventually be disabled in a
+ * future major release. This device should not be used in new production
+ * environments and users should replace the device in production systems.
+ *
+ * This function should be used when the driver's usage can be tied to a
+ * specific hardware device. For example, a network device driver loading on a
+ * specific device that is no longer maintained by the manufacturer.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+void __maybe_unused mark_hardware_deprecated(const char *driver_name, char *fmt, ...)
+{
+ char device_description[DEV_DESC_LEN];
+ va_list args;
+
+ va_start(args, fmt);
+ vsnprintf(device_description, DEV_DESC_LEN, fmt, args);
+ pr_crit(RH_DEPRECATED_HW,
+ driver_name, device_description);
+ va_end(args);
+}
+
+/**
+ * mark_hardware_disabled() - Mark a driver as removed.
+ * @driver_name: driver name
+ * @fmt: format for device description
+ * @...: args for device description
+ *
+ * Called to notify users that a device's support has been completely disabled
+ * and no future support updates will occur. This device cannot be used in new
+ * production environments, and users must replace the device in production
+ * systems.
+ *
+ * This function should be used when the driver's usage can be tied to a
+ * specific hardware device. For example, a network device driver loading on a
+ * specific device that is no longer maintained by the manufacturer.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+static void __maybe_unused mark_hardware_disabled(const char *driver_name, char *fmt, ...)
+{
+ char device_description[DEV_DESC_LEN];
+ va_list args;
+
+ va_start(args, fmt);
+ vsnprintf(device_description, DEV_DESC_LEN, fmt, args);
+ pr_crit(RH_DISABLED_HW,
+ driver_name, device_description);
+ va_end(args);
+}
+
+#ifdef CONFIG_PCI
+/**
+ * pci_hw_deprecated() - Mark a PCI device deprecated.
+ * @dev: the PCI device structure to match against
+ *
+ * Called to check if this @dev is in the list of deprecated devices.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+static void __maybe_unused pci_hw_deprecated(struct pci_dev *dev)
+{
+ const struct pci_device_id *ret = pci_match_id(rh_deprecated_pci_devices, dev);
+
+ if (!ret)
+ return;
+
+ mark_hardware_deprecated(dev_driver_string(&dev->dev), "%04X:%04X @ %s",
+ dev->device, dev->vendor, pci_name(dev));
+}
+
+/**
+ * pci_hw_unmaintained() - Mark a PCI device unmaintained.
+ * @dev: the PCI device structure to match against
+ *
+ * Called to check if this @dev is in the list of unmaintained devices.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+static void pci_hw_unmaintained(struct pci_dev *dev)
+{
+ const struct pci_device_id *ret = pci_match_id(rh_unmaintained_pci_devices, dev);
+
+ if (!ret)
+ return;
+
+ mark_hardware_unmaintained(dev_driver_string(&dev->dev), "%04X:%04X @ %s",
+ dev->device, dev->vendor, pci_name(dev));
+}
+
+/**
+ * pci_hw_disabled() - Mark a PCI device disabled.
+ * @dev: the PCI device structure to match against
+ *
+ * Called to check if this @dev is in the list of disabled devices.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+static bool __maybe_unused pci_hw_disabled(struct pci_dev *dev)
+{
+ const struct pci_device_id *ret = pci_match_id(rh_disabled_pci_devices, dev);
+
+ if (!ret)
+ return false;
+
+ mark_hardware_disabled(dev_driver_string(&dev->dev), "%04X:%04X @ %s",
+ dev->device, dev->vendor, pci_name(dev));
+ return true;
+}
+#endif
+
+/**
+ * driver_unmaintained() - check to see if a driver is unmaintained
+ * @module_name: module name
+ *
+ * Called to notify users that a driver will no longer be tested on a routine
+ * basis and the driver code is no longer being updated. Red Hat may fix
+ * security-related and critical issues. Support for this driver will be
+ * disabled in a future major release, and users should replace any affected
+ * devices in production systems.
+ *
+ * This function should be used when a driver's usage cannot be tied to a
+ * specific hardware device. For example, a network bonding driver or a higher
+ * level storage layer driver that is no longer maintained upstream.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+static void __maybe_unused driver_unmaintained(const char* module_name)
+{
+ int i = 0;
+
+ while (rh_unmaintained_drivers[i]) {
+ if (strcmp(rh_unmaintained_drivers[i], module_name) == 0) {
+ pr_crit(RH_UNMAINT_DR, module_name);
+ return;
+ }
+ i++;
+ }
+}
+
+/**
+ * driver_deprecated() - check to see if a driver is deprecated
+ * @driver_name: module name
+ *
+ * Called to notify users that support for this driver is planned to be
+ * unmaintained in a future major release, and will eventually be disabled in a
+ * future major release. This driver should not be used in new production
+ * environments and users should replace any affected devices in production
+ * systems.
+ *
+ * This function should be used when a driver's usage cannot be tied to a
+ * specific hardware device. For example, a network bonding driver or a higher
+ * level storage layer driver that is no longer maintained upstream.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+static void __maybe_unused driver_deprecated(const char* module_name)
+{
+ int i = 0;
+
+ while (rh_deprecated_drivers[i]) {
+ if (strcmp(rh_deprecated_drivers[i], module_name) == 0) {
+ pr_crit(RH_DEPRECATED_DR, module_name);
+ return;
+ }
+ i++;
+ }
+}
+
+/* There is no driver_disabled() function. Disabled drivers are configured off ;). */
+
+/**
+ * init_fn_unmaintained - check to see if a built-in driver is unmaintained.
+ * @fn_name: module's module_init function name
+ *
+ * Called to notify users that a built-in driver will no longer be tested on a routine
+ * basis and the built-in driver code is no longer being updated. Red Hat may fix
+ * security-related and critical issues. Support for this built-in driver will be
+ * disabled in a future major release, and users should replace any affected
+ * devices in production systems.
+ *
+ * This function should be used when a built-in driver's usage cannot be tied to a
+ * specific hardware device. For example, a network bonding driver or a higher
+ * level storage layer driver that is no longer maintained upstream.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+
+static void __maybe_unused init_fn_unmaintained(char* fn_name)
+{
+ int i = 0;
+
+ while (rh_unmaintained_init_fns[i]) {
+ if (strcmp(rh_unmaintained_init_fns[i], fn_name) == 0) {
+ pr_crit(RH_UNMAINT_DR, fn_name);
+ return;
+ }
+ i++;
+ }
+}
+
+/**
+ * init_fn_deprecated() - check to see if a built-in driver is deprecated
+ * @fn_name: module's module_init function name
+ *
+ * Called to notify users that support for this built-in driver is planned to be
+ * unmaintained in a future major release, and will eventually be disabled in a
+ * future major release. This driver should not be used in new production
+ * environments and users should replace any affected devices in production
+ * systems.
+ *
+ * This function should be used when a built-in driver's usage cannot be tied to a
+ * specific hardware device. For example, a network bonding driver or a higher
+ * level storage layer driver that is no longer maintained upstream.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+static void __maybe_unused init_fn_deprecated(char* fn_name)
+{
+ int i = 0;
+
+ while (rh_deprecated_init_fns[i]) {
+ if (strcmp(rh_deprecated_init_fns[i], fn_name) == 0) {
+ pr_crit(RH_DEPRECATED_DR, fn_name);
+ return;
+ }
+ i++;
+ }
+}
+
+/**
+ * mark_tech_preview() - Mark driver or kernel subsystem as 'Tech Preview'
+ * @msg: Driver or kernel subsystem name
+ *
+ * Called to minimize the support status of a new driver. This does TAINT the
+ * kernel. Calling this function indicates that the driver or subsystem has
+ * had limited testing and is not marked for full support within this RHEL
+ * minor release. The next RHEL minor release may contain full support for
+ * this driver. Red Hat does not guarantee that bugs reported against this
+ * driver or subsystem will be resolved.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+void __maybe_unused mark_tech_preview(const char *msg, struct module *mod)
+{
+ const char *str = NULL;
+
+ if (msg)
+ str = msg;
+#ifdef CONFIG_MODULES
+ else if (mod)
+ str = mod->name;
+#endif
+
+ pr_warn(RH_TECH_PREVIEW, (str ? str : "kernel"));
+ add_taint(TAINT_AUX, LOCKDEP_STILL_OK);
+#ifdef CONFIG_MODULES
+ if (mod)
+ mod->taints |= (1U << TAINT_AUX);
+#endif
+}
+EXPORT_SYMBOL(mark_tech_preview);
+
+/**
+ * mark_partner_supported() - Mark driver or kernel subsystem as 'Partner Supported'
+ * @msg: Driver or kernel subsystem name
+ *
+ * Called to minimize the support status of a new driver. This does TAINT the
+ * kernel. Calling this function indicates that the driver or subsystem
+ * is not supported directly by Red Hat but by a partner engineer.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+void __maybe_unused mark_partner_supported(const char *msg, struct module *mod)
+{
+ const char *str = NULL;
+
+ if (msg)
+ str = msg;
+#ifdef CONFIG_MODULES
+ else if (mod)
+ str = mod->name;
+#endif
+
+ pr_warn(RH_PARTNER_SUPPORTED, (str ? str : "kernel"));
+ add_taint(TAINT_PARTNER_SUPPORTED, LOCKDEP_STILL_OK);
+#ifdef CONFIG_MODULES
+ if (mod)
+ mod->taints |= (1U << TAINT_PARTNER_SUPPORTED);
+#endif
+}
+EXPORT_SYMBOL(mark_partner_supported);
+
+/*
+ *
+ * Functions called by 'main' kernel code.
+ *
+ */
+
+#ifdef CONFIG_PCI
+/**
+ * pci_rh_check_status - checks the status of a PCI device.
+ * @pci_dev: PCI device to be examined
+ *
+ * This function is called by the PCI driver subsystem to check the status of a
+ * PCI device.
+ *
+ * This function returns true if the PCI device is disabled, and false otherwise.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+bool __maybe_unused pci_rh_check_status(struct pci_dev *pci_dev)
+{
+ if (pci_dev->driver->driver.owner != NULL) {
+ if (!test_bit(TAINT_OOT_MODULE, &pci_dev->driver->driver.owner->taints)) {
+ pci_hw_unmaintained(pci_dev);
+ pci_hw_deprecated(pci_dev);
+ return pci_hw_disabled(pci_dev);
+ }
+ }
+ return false;
+}
+#endif
+
+/** module_rh_check_status - checks the status of a module.
+ * @module_name: Name of module to be examined
+ *
+ * This function is called by the module loading code to check the status of a
+ * module.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+void __maybe_unused module_rh_check_status(const char * module_name)
+{
+ driver_unmaintained(module_name);
+ driver_deprecated(module_name);
+}
+
+/**
+ * init_rh_check_status - checks the status of a built-in module.
+ * @fn_name: init function of module to be examined
+ *
+ * This function is called by the init code to check the status of a built-in module.
+ * When a module is built-in, the module_init() function is converted into an initcall.
+ * The initcall is the called during boot with the other system initcalls.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+void __maybe_unused init_rh_check_status(char *fn_name)
+{
+ init_fn_deprecated(fn_name);
+ init_fn_unmaintained(fn_name);
+}
diff --git a/kernel/rh_messages.h b/kernel/rh_messages.h
new file mode 100644
index 000000000000..616692b1ac11
--- /dev/null
+++ b/kernel/rh_messages.h
@@ -0,0 +1,109 @@
+/*
+ * WARNING: This file is auto-generated by an internal Red Hat script and,
+ * in general, should not be modified by hand.
+ */
+
+/*
+ * The following tables are used by Red Hat to define what hardware and drivers
+ * are unsupported, or have limited support in RHEL major and minor releases.
+ *
+ * Generally, the process of disabling a driver or device in RHEL requires the
+ * driver or device to be marked as 'deprecated' in all existing releases, and
+ * then either 'unmaintained' or 'disabled' in a future release.
+ *
+ * In general, deprecated and unmaintained drivers continue to receive security
+ * related fixes until they are disabled.
+ */
+
+#ifndef __RH_MESSAGES_H
+#define __RH_MESSAGES_H
+
+#include <linux/version.h>
+#include <linux/pci.h>
+
+#define DEV_DESC_LEN 256
+
+#define RH_UNMAINT_HW "Warning: Unmaintained Hardware is detected: %s:%s\n"
+
+#define RH_UNMAINT_DR "Warning: Unmaintained driver is detected: %s\n"
+
+#define RH_DEPRECATED_HW "Warning: Deprecated Hardware is detected: %s:%s " \
+ "will not be maintained in a future major release " \
+ "and may be disabled\n"
+
+#define RH_DEPRECATED_DR "Warning: Deprecated Driver is detected: %s will " \
+ "not be maintained in a future major release and " \
+ "may be disabled\n"
+
+#define RH_DISABLED_HW "Warning: Disabled Hardware is detected: %s:%s is " \
+ "no longer enabled in this release.\n"
+
+#define RH_TECH_PREVIEW "TECH PREVIEW: %s may not be fully supported.\n" \
+ "Please review provided documentation for " \
+ "limitations.\n"
+
+#define RH_PARTNER_SUPPORTED "Warning: %s is a Partner supported GPL " \
+ "module and not supported directly by Red Hat.\n"
+
+#if RHEL_MAJOR == 9
+
+static const char *rh_deprecated_drivers[] = {
+ 0 /* Terminating entry */
+};
+
+static const char *rh_deprecated_init_fns[] = {
+ 0 /* Terminating entry */
+};
+
+static const char *rh_unmaintained_drivers[] = {
+ 0 /* Terminating entry */
+};
+
+static const char *rh_unmaintained_init_fns[] = {
+ 0 /* Terminating entry */
+};
+
+static const struct pci_device_id rh_deprecated_pci_devices[] = {
+ {0} /* Terminating entry */
+};
+
+static const struct pci_device_id rh_disabled_pci_devices[] = {
+ {0} /* Terminating entry */
+};
+
+static const struct pci_device_id rh_unmaintained_pci_devices[] = {
+ {0} /* Terminating entry */
+};
+
+#else /* RHEL-10 */
+
+static const char *rh_deprecated_drivers[] = {
+ 0 /* Terminating entry */
+};
+
+static const char *rh_deprecated_init_fns[] = {
+ 0 /* Terminating entry */
+};
+
+static const char *rh_unmaintained_drivers[] = {
+ 0 /* Terminating entry */
+};
+
+static const char *rh_unmaintained_init_fns[] = {
+ 0 /* Terminating entry */
+};
+
+static const struct pci_device_id rh_deprecated_pci_devices[] = {
+ {0} /* Terminating entry */
+};
+
+static const struct pci_device_id rh_disabled_pci_devices[] = {
+ {0} /* Terminating entry */
+};
+
+static const struct pci_device_id rh_unmaintained_pci_devices[] = {
+ {0} /* Terminating entry */
+};
+#endif /* RHEL_MAJOR */
+
+#endif /* __RH_MESSAGES_H */
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 267b9a0a3abc..12612f58ca58 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -22,6 +22,7 @@
#include <errno.h>
#include "modpost.h"
#include "../../include/linux/license.h"
+#include "../../include/generated/uapi/linux/version.h"
static bool module_enabled;
/* Are we using CONFIG_MODVERSIONS? */
@@ -1992,6 +1993,12 @@ static void write_buf(struct buffer *b, const char *fname)
}
}
+static void add_rhelversion(struct buffer *b, struct module *mod)
+{
+ buf_printf(b, "MODULE_INFO(rhelversion, \"%d.%d\");\n", RHEL_MAJOR,
+ RHEL_MINOR);
+}
+
static void write_if_changed(struct buffer *b, const char *fname)
{
char *tmp;
@@ -2052,6 +2059,7 @@ static void write_mod_c_file(struct module *mod)
add_depends(&buf, mod);
add_moddevtable(&buf, mod);
add_srcversion(&buf, mod);
+ add_rhelversion(&buf, mod);
ret = snprintf(fname, sizeof(fname), "%s.mod.c", mod->name);
if (ret >= sizeof(fname)) {
diff --git a/scripts/tags.sh b/scripts/tags.sh
index 191e0461d6d5..e6f418b3e948 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -16,6 +16,8 @@ fi
ignore="$(echo "$RCS_FIND_IGNORE" | sed 's|\\||g' )"
# tags and cscope files should also ignore MODVERSION *.mod.c files
ignore="$ignore ( -name *.mod.c ) -prune -o"
+# RHEL tags and cscope should also ignore redhat/rpm
+ignore="$ignore ( -path redhat/rpm ) -prune -o"
# ignore arbitrary directories
if [ -n "${IGNORE_DIRS}" ]; then
diff --git a/security/integrity/platform_certs/load_uefi.c b/security/integrity/platform_certs/load_uefi.c
index d1fdd113450a..182e8090cfe8 100644
--- a/security/integrity/platform_certs/load_uefi.c
+++ b/security/integrity/platform_certs/load_uefi.c
@@ -74,7 +74,8 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid,
return NULL;
if (*status != EFI_BUFFER_TOO_SMALL) {
- pr_err("Couldn't get size: 0x%lx\n", *status);
+ pr_err("Couldn't get size: %s (0x%lx)\n",
+ efi_status_to_str(*status), *status);
return NULL;
}
@@ -85,7 +86,8 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid,
*status = efi.get_variable(name, guid, NULL, &lsize, db);
if (*status != EFI_SUCCESS) {
kfree(db);
- pr_err("Error reading db var: 0x%lx\n", *status);
+ pr_err("Error reading db var: %s (0x%lx)\n",
+ efi_status_to_str(*status), *status);
return NULL;
}
diff --git a/security/lockdown/Kconfig b/security/lockdown/Kconfig
index e84ddf484010..d0501353a4b9 100644
--- a/security/lockdown/Kconfig
+++ b/security/lockdown/Kconfig
@@ -16,6 +16,19 @@ config SECURITY_LOCKDOWN_LSM_EARLY
subsystem is fully initialised. If enabled, lockdown will
unconditionally be called before any other LSMs.
+config LOCK_DOWN_IN_EFI_SECURE_BOOT
+ bool "Lock down the kernel in EFI Secure Boot mode"
+ default n
+ depends on EFI && SECURITY_LOCKDOWN_LSM_EARLY
+ help
+ UEFI Secure Boot provides a mechanism for ensuring that the firmware
+ will only load signed bootloaders and kernels. Secure boot mode may
+ be determined from EFI variables provided by the system firmware if
+ not indicated by the boot parameters.
+
+ Enabling this option results in kernel lockdown being triggered if
+ EFI Secure Boot is set.
+
choice
prompt "Kernel default lockdown mode"
default LOCK_DOWN_KERNEL_FORCE_NONE
diff --git a/security/lockdown/lockdown.c b/security/lockdown/lockdown.c
index cd84d8ea1dfb..e4c70a0312bc 100644
--- a/security/lockdown/lockdown.c
+++ b/security/lockdown/lockdown.c
@@ -74,6 +74,7 @@ static int lockdown_is_locked_down(enum lockdown_reason what)
static struct security_hook_list lockdown_hooks[] __ro_after_init = {
LSM_HOOK_INIT(locked_down, lockdown_is_locked_down),
+ LSM_HOOK_INIT(lock_kernel_down, lock_kernel_down),
};
const struct lsm_id lockdown_lsmid = {
diff --git a/security/security.c b/security/security.c
index 7035ee35a393..e1d54a896ef9 100644
--- a/security/security.c
+++ b/security/security.c
@@ -5511,6 +5511,18 @@ int security_locked_down(enum lockdown_reason what)
}
EXPORT_SYMBOL(security_locked_down);
+/**
+ * security_lock_kernel_down() - Put the kernel into lock-down mode.
+ *
+ * @where: Where the lock-down is originating from (e.g. command line option)
+ * @level: The lock-down level (can only increase)
+ */
+int security_lock_kernel_down(const char *where, enum lockdown_reason level)
+{
+ return call_int_hook(lock_kernel_down, 0, where, level);
+}
+EXPORT_SYMBOL(security_lock_kernel_down);
+
#ifdef CONFIG_PERF_EVENTS
/**
* security_perf_event_open() - Check if a perf event open is allowed
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