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Subject[GIT PULL] x86 fix
Linus,

Please pull the latest x86-urgent-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-for-linus

# HEAD: af164898482817a1d487964b68f3c21bae7a1beb x86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage

Fix kexec booting with certain EFI memory map layouts.

Thanks,

Ingo

------------------>
Dave Young (1):
x86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage


arch/x86/platform/efi/quirks.c | 6 ++----
1 file 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);
}

/*
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