tweak the UEFI patch set (try mfleming's "big arse revert")
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Adam Williamson
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166
UEFI-big-arse-revert.patch
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166
UEFI-big-arse-revert.patch
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From 8054c405f0acc8ecb74b7e29675a1e6894afedb0 Mon Sep 17 00:00:00 2001
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From: Matt Fleming <matt.fleming@intel.com>
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Date: Tue, 23 Sep 2014 10:37:43 +0100
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Subject: [PATCH] Revert "efi/x86: efistub: Move shared dependencies to
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<asm/efi.h>"
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This reverts commit f23cf8bd5c1f ("efi/x86: efistub: Move shared
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dependencies to <asm/efi.h>") as well as the x86 parts of commit
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f4f75ad5741f ("efi: efistub: Convert into static library").
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The road leading to these two reverts is long and winding.
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The above two commits were merged during the v3.17 merge window and
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turned the common EFI boot stub code into a static library. This
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necessitated making some symbols global in the x86 boot stub which
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introduced new entries into the early boot GOT.
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The problem was that we weren't fixing up the newly created GOT entries
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before invoking the EFI boot stub, which sometimes resulted in hangs or
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resets. This failure was reported by Maarten on his Macbook pro.
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The proposed fix was commit 9cb0e394234d ("x86/efi: Fixup GOT in all
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boot code paths"). However, that caused issues for Linus when booting
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his Sony Vaio Pro 11. It was subsequently reverted in commit
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f3670394c29f.
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So that leaves us back with Maarten's Macbook pro not booting.
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At this stage in the release cycle the least risky option is to revert
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the x86 EFI boot stub to the pre-merge window code structure where we
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explicitly #include efi-stub-helper.c instead of linking with the static
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library. The arm64 code remains unaffected.
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We can take another swing at the x86 parts for v3.18.
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Conflicts:
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arch/x86/include/asm/efi.h
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Cc: H. Peter Anvin <hpa@zytor.com>
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Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>,
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Cc: Josh Boyer <jwboyer@fedoraproject.org>
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Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
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Cc: Ingo Molnar <mingo@kernel.org>
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Cc: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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---
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arch/x86/boot/compressed/Makefile | 3 +--
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arch/x86/boot/compressed/eboot.c | 7 ++++++-
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arch/x86/boot/compressed/eboot.h | 16 ++++++++++++++++
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arch/x86/include/asm/efi.h | 24 ------------------------
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drivers/firmware/efi/Makefile | 2 +-
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5 files changed, 24 insertions(+), 28 deletions(-)
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diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
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index 7a801a310e37..0fcd9133790c 100644
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--- a/arch/x86/boot/compressed/Makefile
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+++ b/arch/x86/boot/compressed/Makefile
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@@ -33,8 +33,7 @@ VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \
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$(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone
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ifeq ($(CONFIG_EFI_STUB), y)
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- VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o \
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- $(objtree)/drivers/firmware/efi/libstub/lib.a
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+ VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o
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endif
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$(obj)/vmlinux: $(VMLINUX_OBJS) FORCE
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diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
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index dca9842d8f91..b04f1e0e3fab 100644
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--- a/arch/x86/boot/compressed/eboot.c
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+++ b/arch/x86/boot/compressed/eboot.c
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@@ -19,7 +19,10 @@
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static efi_system_table_t *sys_table;
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-struct efi_config *efi_early;
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+static struct efi_config *efi_early;
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+
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+#define efi_call_early(f, ...) \
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+ efi_early->call(efi_early->f, __VA_ARGS__);
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#define BOOT_SERVICES(bits) \
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static void setup_boot_services##bits(struct efi_config *c) \
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@@ -280,6 +283,8 @@ void efi_char16_printk(efi_system_table_t *table, efi_char16_t *str)
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}
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}
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+#include "../../../../drivers/firmware/efi/libstub/efi-stub-helper.c"
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+
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static void find_bits(unsigned long mask, u8 *pos, u8 *size)
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{
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u8 first, len;
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diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h
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index d487e727f1ec..c88c31ecad12 100644
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--- a/arch/x86/boot/compressed/eboot.h
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+++ b/arch/x86/boot/compressed/eboot.h
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@@ -103,4 +103,20 @@ struct efi_uga_draw_protocol {
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void *blt;
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};
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+struct efi_config {
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+ u64 image_handle;
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+ u64 table;
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+ u64 allocate_pool;
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+ u64 allocate_pages;
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+ u64 get_memory_map;
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+ u64 free_pool;
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+ u64 free_pages;
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+ u64 locate_handle;
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+ u64 handle_protocol;
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+ u64 exit_boot_services;
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+ u64 text_output;
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+ efi_status_t (*call)(unsigned long, ...);
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+ bool is64;
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+} __packed;
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+
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#endif /* BOOT_COMPRESSED_EBOOT_H */
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diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
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index 044a2fd3c5fe..0ec241ede5a2 100644
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--- a/arch/x86/include/asm/efi.h
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+++ b/arch/x86/include/asm/efi.h
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@@ -159,30 +159,6 @@ static inline efi_status_t efi_thunk_set_virtual_address_map(
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}
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#endif /* CONFIG_EFI_MIXED */
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-
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-/* arch specific definitions used by the stub code */
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-
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-struct efi_config {
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- u64 image_handle;
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- u64 table;
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- u64 allocate_pool;
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- u64 allocate_pages;
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- u64 get_memory_map;
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- u64 free_pool;
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- u64 free_pages;
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- u64 locate_handle;
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- u64 handle_protocol;
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- u64 exit_boot_services;
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- u64 text_output;
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- efi_status_t (*call)(unsigned long, ...);
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- bool is64;
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-} __packed;
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-
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-extern struct efi_config *efi_early;
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-
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-#define efi_call_early(f, ...) \
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- efi_early->call(efi_early->f, __VA_ARGS__);
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-
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extern bool efi_reboot_required(void);
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#else
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diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile
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index d8be608a9f3b..aef6a95adef5 100644
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--- a/drivers/firmware/efi/Makefile
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+++ b/drivers/firmware/efi/Makefile
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@@ -7,4 +7,4 @@ obj-$(CONFIG_EFI_VARS_PSTORE) += efi-pstore.o
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obj-$(CONFIG_UEFI_CPER) += cper.o
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obj-$(CONFIG_EFI_RUNTIME_MAP) += runtime-map.o
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obj-$(CONFIG_EFI_RUNTIME_WRAPPERS) += runtime-wrappers.o
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-obj-$(CONFIG_EFI_STUB) += libstub/
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+obj-$(CONFIG_EFI_ARM_STUB) += libstub/
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--
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1.9.3
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10
kernel.spec
10
kernel.spec
@ -635,10 +635,11 @@ Patch31010: 0001-ACPI-temporary-dep-solution-for-battery-support.patch
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# Add SDIO ID for the V8P wireless adapter to ath6kl driver
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# Add SDIO ID for the V8P wireless adapter to ath6kl driver
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Patch31200: support-Dell-OEM-chipset-found-in-Venue-8-Pro-SDIO-I.patch
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Patch31200: support-Dell-OEM-chipset-found-in-Venue-8-Pro-SDIO-I.patch
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# UEFI boot fixes from Matt Fleming, fix
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# UEFI boot fixes from Matt Fleming, try to fix
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# https://bugzilla.kernel.org/show_bug.cgi?id=84241
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# https://bugzilla.kernel.org/show_bug.cgi?id=84241
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Patch31201: x86-efi-only-load-initrd-above-4g-on-second-try.patch
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Patch31201: x86-efi-only-load-initrd-above-4g-on-second-try.patch
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Patch21202: x86-efi-fixup-got-in-all-boot-code-paths.patch
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#Patch21202: x86-efi-fixup-got-in-all-boot-code-paths.patch
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Patch21203: UEFI-big-arse-revert.patch
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# END OF AWB PATCH DEFINITIONS
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# END OF AWB PATCH DEFINITIONS
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@ -1383,8 +1384,9 @@ ApplyPatch kernel-arm64.patch -R
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# AWB (BAYTRAIL) PATCH APPLICATIONS
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# AWB (BAYTRAIL) PATCH APPLICATIONS
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ApplyPatch 0001-ACPI-temporary-dep-solution-for-battery-support.patch
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ApplyPatch 0001-ACPI-temporary-dep-solution-for-battery-support.patch
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ApplyPatch support-Dell-OEM-chipset-found-in-Venue-8-Pro-SDIO-I.patch
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ApplyPatch support-Dell-OEM-chipset-found-in-Venue-8-Pro-SDIO-I.patch
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ApplyPatch x86-efi-only-load-initrd-above-4g-on-second-try.patch
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#ApplyPatch x86-efi-only-load-initrd-above-4g-on-second-try.patch
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ApplyPatch x86-efi-fixup-got-in-all-boot-code-paths.patch
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#ApplyPatch x86-efi-fixup-got-in-all-boot-code-paths.patch
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ApplyPatch UEFI-big-arse-revert.patch
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# END OF AWB (BAYTRAIL) PATCH APPLICATIONS
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# END OF AWB (BAYTRAIL) PATCH APPLICATIONS
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