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Subject[PATCH 3/7] x86/efi/32: Fix EFI on systems where the percpu GDT is virtually mapped
Date
__pa on a percpu pointer is invalid.  This bug appears to go *waaay*
back, and I guess it's just never been triggered.

Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: linux-efi@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
arch/x86/platform/efi/efi_32.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 950071171436..3481268da3d0 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -68,7 +68,7 @@ pgd_t * __init efi_call_phys_prolog(void)
load_cr3(initial_page_table);
__flush_tlb_all();

- gdt_descr.address = __pa(get_cpu_gdt_rw(0));
+ gdt_descr.address = get_cpu_gdt_paddr(0);
gdt_descr.size = GDT_SIZE - 1;
load_gdt(&gdt_descr);

--
2.9.3
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