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authorLinus Torvalds <torvalds@linux-foundation.org>2019-12-17 11:17:03 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-12-17 11:17:03 -0800
commit9065e0636036e4f8a6f65f9c34ed384e4b776273 (patch)
tree6c994000409a3221910f90f15e9dcb186f5b01a6 /arch
parentMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (diff)
parentx86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage (diff)
downloadlinux-dev-9065e0636036e4f8a6f65f9c34ed384e4b776273.tar.xz
linux-dev-9065e0636036e4f8a6f65f9c34ed384e4b776273.zip
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar: "Fix kexec booting with certain EFI memory map layouts" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/platform/efi/quirks.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 7675cf754d90..f8f0220b6a66 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -260,10 +260,6 @@ void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size)
return;
}
- /* No need to reserve regions that will never be freed. */
- if (md.attribute & EFI_MEMORY_RUNTIME)
- return;
-
size += addr % EFI_PAGE_SIZE;
size = round_up(size, EFI_PAGE_SIZE);
addr = round_down(addr, EFI_PAGE_SIZE);
@@ -293,6 +289,8 @@ void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size)
early_memunmap(new, new_size);
efi_memmap_install(new_phys, num_entries);
+ e820__range_update(addr, size, E820_TYPE_RAM, E820_TYPE_RESERVED);
+ e820__update_table(e820_table);
}
/*