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| author | Ingo Molnar <mingo@kernel.org> | 2012-10-26 10:17:38 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-10-26 10:17:38 +0200 |
| commit | 8b724e2a12d553cad8ad412846511c783a92d25e (patch) | |
| tree | a07e14802a768a7156f70e2f9550ff98fe2b17f1 /arch/x86/kernel/setup.c | |
| parent | x86, mm: Undo incorrect revert in arch/x86/mm/init.c (diff) | |
| parent | x86: efi: Turn off efi_enabled after setup on mixed fw/kernel (diff) | |
| download | linux-8b724e2a12d553cad8ad412846511c783a92d25e.tar.xz linux-8b724e2a12d553cad8ad412846511c783a92d25e.zip | |
Merge tag 'efi-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/urgent
Pull EFI fixes from Matt Fleming:
"Fix oops with EFI variables on mixed 32/64-bit firmware/kernels and
document EFI git repository location on kernel.org."
Conflicts:
arch/x86/include/asm/efi.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/setup.c')
| -rw-r--r-- | arch/x86/kernel/setup.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 5d888af8682a..ca45696f30fb 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1049,6 +1049,18 @@ void __init setup_arch(char **cmdline_p) arch_init_ideal_nops(); register_refined_jiffies(CLOCK_TICK_RATE); + +#ifdef CONFIG_EFI + /* Once setup is done above, disable efi_enabled on mismatched + * firmware/kernel archtectures since there is no support for + * runtime services. + */ + if (efi_enabled && IS_ENABLED(CONFIG_X86_64) != efi_64bit) { + pr_info("efi: Setup done, disabling due to 32/64-bit mismatch\n"); + efi_unmap_memmap(); + efi_enabled = 0; + } +#endif } #ifdef CONFIG_X86_32 |