Rest of allocator fixes
Signed-off-by: Robbie Harwood <rharwood@redhat.com>
This commit is contained in:
Robbie Harwood
parent
5b44e10cf3
commit
74d57bbd19
@ -0,0 +1,57 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Peter Jones <pjones@redhat.com>
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Date: Mon, 1 Aug 2022 14:07:50 -0400
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Subject: [PATCH] efi: allocate the initrd within the bounds expressed by the
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kernel
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Currently on x86, only linux kernels built with CONFIG_RELOCATABLE for
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x86_64 can be loaded above 4G, but the maximum address for the initramfs
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is specified via a HdrS field. This allows us to utilize that value,
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and unless loading the kernel above 4G, uses the value present there.
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If loading kernel above 4G is allowed, we assume loading the initramfs
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above 4G also works; in practice this has been true in the kernel code
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for quite some time.
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Resolves: rhbz#2112134
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Signed-off-by: Peter Jones <pjones@redhat.com>
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---
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grub-core/loader/i386/efi/linux.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/grub-core/loader/i386/efi/linux.c b/grub-core/loader/i386/efi/linux.c
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index e6b8998e5e..d003b474ee 100644
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--- a/grub-core/loader/i386/efi/linux.c
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+++ b/grub-core/loader/i386/efi/linux.c
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@@ -190,6 +190,8 @@ grub_linuxefi_unload (void *data)
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cmd_initrdefi->data = 0;
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grub_free (context);
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+ max_addresses[INITRD_MAX_ADDRESS].addr = GRUB_EFI_MAX_ALLOCATION_ADDRESS;
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+
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return GRUB_ERR_NONE;
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}
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@@ -426,11 +428,13 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
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}
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#endif
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+ max_addresses[INITRD_MAX_ADDRESS].addr = lh->initrd_addr_max;
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#if defined(__x86_64__)
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if (lh->xloadflags & LINUX_XLF_CAN_BE_LOADED_ABOVE_4G)
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{
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grub_dprintf ("linux", "Loading kernel above 4GB is supported; enabling.\n");
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max_addresses[KERNEL_NO_LIMIT].addr = GRUB_EFI_MAX_USABLE_ADDRESS;
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+ max_addresses[INITRD_MAX_ADDRESS].addr = GRUB_EFI_MAX_USABLE_ADDRESS;
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}
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else
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{
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@@ -560,6 +564,8 @@ fail:
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grub_dl_unref (my_mod);
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+ max_addresses[INITRD_MAX_ADDRESS].addr = GRUB_EFI_MAX_ALLOCATION_ADDRESS;
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+
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if (lh)
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kernel_free (cmdline, lh->cmdline_size + 1);
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@ -0,0 +1,61 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Peter Jones <pjones@redhat.com>
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Date: Mon, 1 Aug 2022 13:04:43 -0400
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Subject: [PATCH] efi: use EFI_LOADER_(CODE|DATA) for kernel and initrd
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allocations
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At some point due to an erroneous kernel warning, we switched kernel and
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initramfs to being loaded in EFI_RUNTIME_SERVICES_CODE and
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EFI_RUNTIME_SERVICES_DATA memory pools. This doesn't appear to be
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correct according to the spec, and that kernel warning has gone away.
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This patch puts them back in EFI_LOADER_CODE and EFI_LOADER_DATA
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allocations, respectively.
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Resolves: rhbz#2108456
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Signed-off-by: Peter Jones <pjones@redhat.com>
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---
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grub-core/loader/i386/efi/linux.c | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/grub-core/loader/i386/efi/linux.c b/grub-core/loader/i386/efi/linux.c
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index d003b474ee..ac5ef50bdb 100644
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--- a/grub-core/loader/i386/efi/linux.c
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+++ b/grub-core/loader/i386/efi/linux.c
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@@ -279,7 +279,7 @@ grub_cmd_initrd (grub_command_t cmd, int argc, char *argv[])
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}
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grub_dprintf ("linux", "Trying to allocate initrd mem\n");
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- initrd_mem = kernel_alloc(INITRD_MEM, size, GRUB_EFI_RUNTIME_SERVICES_DATA,
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+ initrd_mem = kernel_alloc(INITRD_MEM, size, GRUB_EFI_LOADER_DATA,
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N_("can't allocate initrd"));
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if (initrd_mem == NULL)
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goto fail;
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@@ -443,7 +443,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
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#endif
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params = kernel_alloc (KERNEL_MEM, sizeof(*params),
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- GRUB_EFI_RUNTIME_SERVICES_DATA,
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+ GRUB_EFI_LOADER_DATA,
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"cannot allocate kernel parameters");
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if (!params)
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goto fail;
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@@ -467,7 +467,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
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grub_dprintf ("linux", "setting up cmdline\n");
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cmdline = kernel_alloc (KERNEL_MEM, lh->cmdline_size + 1,
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- GRUB_EFI_RUNTIME_SERVICES_DATA,
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+ GRUB_EFI_LOADER_DATA,
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N_("can't allocate cmdline"));
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if (!cmdline)
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goto fail;
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@@ -516,7 +516,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
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kernel_size = lh->init_size;
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grub_dprintf ("linux", "Trying to allocate kernel mem\n");
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kernel_mem = kernel_alloc (KERNEL_MEM, kernel_size,
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- GRUB_EFI_RUNTIME_SERVICES_CODE,
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+ GRUB_EFI_LOADER_CODE,
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N_("can't allocate kernel"));
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restore_addresses();
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if (!kernel_mem)
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@ -271,3 +271,5 @@ Patch0270: 0270-Make-debug-file-show-which-file-filters-get-run.patch
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Patch0271: 0271-efi-make-the-default-arena-most-of-ram.patch
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Patch0272: 0272-efi-use-enumerated-array-positions-for-our-allocatio.patch
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Patch0273: 0273-efi-split-allocation-policy-for-kernel-vs-initrd-mem.patch
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Patch0274: 0274-efi-allocate-the-initrd-within-the-bounds-expressed-.patch
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Patch0275: 0275-efi-use-EFI_LOADER_-CODE-DATA-for-kernel-and-initrd-.patch
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@ -17,7 +17,7 @@
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Name: grub2
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Epoch: 1
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Version: 2.06
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Release: 44%{?dist}
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Release: 45%{?dist}
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Summary: Bootloader with support for Linux, Multiboot and more
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License: GPLv3+
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URL: http://www.gnu.org/software/grub/
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@ -530,6 +530,9 @@ mv ${EFI_HOME}/grub.cfg.stb ${EFI_HOME}/grub.cfg
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%endif
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%changelog
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* Mon Aug 02 2022 Robbie Harwood <rharwood@redhat.com> - 2.06-45
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- Rest of allocator fixes
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* Mon Aug 01 2022 Robbie Harwood <rharwood@redhat.com> - 2.06-44
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- Some allocator fixes for kernel
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