diff options
| author | Huang, Ying | 2008-01-30 13:31:19 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2008-01-30 13:31:19 +0100 |
| commit | 5b83683f32b113d07edfb67a33ce389fc624423d (patch) | |
| tree | 03efde0750c9d7e477ab695aeee26173ffcc4abf /arch/x86/Kconfig | |
| parent | mcheck mce_64: mce_read_sem to mutex (diff) | |
| download | kernel-qcow2-linux-5b83683f32b113d07edfb67a33ce389fc624423d.tar.gz kernel-qcow2-linux-5b83683f32b113d07edfb67a33ce389fc624423d.tar.xz kernel-qcow2-linux-5b83683f32b113d07edfb67a33ce389fc624423d.zip | |
x86: EFI runtime service support
This patch adds basic runtime services support for EFI x86_64 system. The
main file of the patch is the addition of efi_64.c for x86_64. This file is
modeled after the EFI IA32 avatar. EFI runtime services initialization are
implemented in efi_64.c. Some x86_64 specifics are worth noting here. On
x86_64, parameters passed to EFI firmware services need to follow the EFI
calling convention. For this purpose, a set of functions named efi_call<x>
(<x> is the number of parameters) are implemented. EFI function calls are
wrapped before calling the firmware service. The duplicated code between
efi_32.c and efi_64.c is placed in efi.c to remove them from efi_32.c.
Signed-off-by: Chandramouli Narayanan <mouli@linux.intel.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index fef944bb920e..23936301db56 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -959,7 +959,7 @@ config MTRR config EFI def_bool n prompt "Boot from EFI support" - depends on X86_32 && ACPI + depends on ACPI ---help--- This enables the kernel to boot on EFI platforms using system configuration information passed to it from the firmware. |