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author | Ingo Molnar <mingo@kernel.org> | 2014-03-11 11:53:50 +0100 |
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committer | Ingo Molnar <mingo@kernel.org> | 2014-03-11 11:53:50 +0100 |
commit | 0066f3b93e144762b409940fa37bb1cd36c1baf7 (patch) | |
tree | 0c99b2754fb16c2a787bc1d086bd6fb268b12b1a /arch/x86/platform/efi/efi.c | |
parent | e65312fe868da53077780de618e213a53dc90d00 (diff) | |
parent | b8ad0f912b93c23c34dfedc615a0eeba6ca29463 (diff) | |
download | blackbird-op-linux-0066f3b93e144762b409940fa37bb1cd36c1baf7.tar.gz blackbird-op-linux-0066f3b93e144762b409940fa37bb1cd36c1baf7.zip |
Merge branch 'perf/urgent' into perf/core
Merge the latest fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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 1a201ac7cef8..b97acecf3fd9 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); +} |