diff options
| author | Grant Likely <grant.likely@linaro.org> | 2014-03-31 08:10:55 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@linaro.org> | 2014-03-31 08:10:55 +0100 |
| commit | d88cf7d7b4240b8df170ba105e414e476fb51cce (patch) | |
| tree | 7efe976da6e0ec854eb0eeda82c1e9a275b8c69f /arch/x86/platform/efi/efi.c | |
| parent | 676e1b2fcd9dbb47a59baac13d089621d22c68b8 (diff) | |
| parent | 6f976267da0e2c873c4b4aaacaf08266d1d1797d (diff) | |
Merge remote-tracking branch 'robh/for-next' into devicetree/next
Diffstat (limited to 'arch/x86/platform/efi/efi.c')
| -rw-r--r-- | arch/x86/platform/efi/efi.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 1a201ac7cef..b97acecf3fd 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -52,6 +52,7 @@ #include <asm/tlbflush.h> #include <asm/x86_init.h> #include <asm/rtc.h> +#include <asm/uv/uv.h> #define EFI_DEBUG @@ -1210,3 +1211,22 @@ static int __init parse_efi_cmdline(char *str) return 0; } early_param("efi", parse_efi_cmdline); + +void __init efi_apply_memmap_quirks(void) +{ + /* + * Once setup is done earlier, unmap the EFI memory map on mismatched + * firmware/kernel architectures since there is no support for runtime + * services. + */ + if (!efi_is_native()) { + pr_info("efi: Setup done, disabling due to 32/64-bit mismatch\n"); + efi_unmap_memmap(); + } + + /* + * UV doesn't support the new EFI pagetable mapping yet. + */ + if (is_uv_system()) + set_bit(EFI_OLD_MEMMAP, &x86_efi_facility); +} |