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authorArd Biesheuvel <ardb@kernel.org>2019-12-24 16:10:12 +0100
committerIngo Molnar <mingo@kernel.org>2019-12-25 10:49:19 +0100
commit8f24f8c2fc82f701866419dcb594e2cc1d3f46ba (patch)
tree78911f8dba19edd090d65649482291b11e10ca1b /arch/x86/boot
parentefi/libstub: Use stricter typing for firmware function pointers (diff)
downloadlinux-8f24f8c2fc82f701866419dcb594e2cc1d3f46ba.tar.xz
linux-8f24f8c2fc82f701866419dcb594e2cc1d3f46ba.zip
efi/libstub: Annotate firmware routines as __efiapi
Annotate all the firmware routines (boot services, runtime services and protocol methods) called in the boot context as __efiapi, and make it expand to __attribute__((ms_abi)) on 64-bit x86. This allows us to use the compiler to generate the calls into firmware that use the MS calling convention instead of the SysV one. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Cc: Arvind Sankar <nivedita@alum.mit.edu> Cc: Borislav Petkov <bp@alien8.de> Cc: James Morse <james.morse@arm.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: https://lkml.kernel.org/r/20191224151025.32482-13-ardb@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/boot')
-rw-r--r--arch/x86/boot/compressed/eboot.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h
index b8d11928f528..99f35343d443 100644
--- a/arch/x86/boot/compressed/eboot.h
+++ b/arch/x86/boot/compressed/eboot.h
@@ -16,8 +16,8 @@ typedef union efi_uga_draw_protocol efi_uga_draw_protocol_t;
union efi_uga_draw_protocol {
struct {
- efi_status_t (*get_mode)(efi_uga_draw_protocol_t *,
- u32*, u32*, u32*, u32*);
+ efi_status_t (__efiapi *get_mode)(efi_uga_draw_protocol_t *,
+ u32*, u32*, u32*, u32*);
void *set_mode;
void *blt;
};