diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2023-09-15 17:16:26 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-09-17 19:48:42 +0200 |
| commit | eac956345f99dda3d68f4ae6cf7b494105e54780 (patch) | |
| tree | f49ea739e5483c0d739791764be115739a943d1a /arch/x86/boot/tools | |
| parent | 2e765c02dcbfc2a8a4527c621a84b9502f6b9bd2 (diff) | |
x86/boot: Set EFI handover offset directly in header asm
The offsets of the EFI handover entrypoints are available to the
assembler when constructing the header, so there is no need to set them
from the build tool afterwards.
This change has no impact on the resulting bzImage binary.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230915171623.655440-12-ardb@google.com
Diffstat (limited to 'arch/x86/boot/tools')
| -rw-r--r-- | arch/x86/boot/tools/build.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c index 14ef13fe7ab0..069497543164 100644 --- a/arch/x86/boot/tools/build.c +++ b/arch/x86/boot/tools/build.c @@ -55,8 +55,6 @@ u8 buf[SETUP_SECT_MAX*512]; #define PECOFF_COMPAT_RESERVE 0x0 #endif -static unsigned long efi32_stub_entry; -static unsigned long efi64_stub_entry; static unsigned long efi_pe_entry; static unsigned long efi32_pe_entry; static unsigned long _end; @@ -265,31 +263,12 @@ static void efi_stub_defaults(void) #endif } -static void efi_stub_entry_update(void) -{ - unsigned long addr = efi32_stub_entry; - -#ifdef CONFIG_EFI_HANDOVER_PROTOCOL -#ifdef CONFIG_X86_64 - /* Yes, this is really how we defined it :( */ - addr = efi64_stub_entry - 0x200; -#endif - -#ifdef CONFIG_EFI_MIXED - if (efi32_stub_entry != addr) - die("32-bit and 64-bit EFI entry points do not match\n"); -#endif -#endif - put_unaligned_le32(addr, &buf[0x264]); -} - #else static inline void update_pecoff_setup_and_reloc(unsigned int size) {} static inline void update_pecoff_text(unsigned int text_start, unsigned int file_sz) {} static inline void efi_stub_defaults(void) {} -static inline void efi_stub_entry_update(void) {} static inline int reserve_pecoff_reloc_section(int c) { @@ -332,8 +311,6 @@ static void parse_zoffset(char *fname) p = (char *)buf; while (p && *p) { - PARSE_ZOFS(p, efi32_stub_entry); - PARSE_ZOFS(p, efi64_stub_entry); PARSE_ZOFS(p, efi_pe_entry); PARSE_ZOFS(p, efi32_pe_entry); PARSE_ZOFS(p, _end); @@ -416,7 +393,6 @@ int main(int argc, char ** argv) update_pecoff_text(setup_sectors * 512, i + (sys_size * 16)); - efi_stub_entry_update(); crc = partial_crc32(buf, i, crc); if (fwrite(buf, 1, i, dest) != i) |