diff options
Diffstat (limited to 'arch/x86/boot/tools/build.c')
| -rw-r--r-- | arch/x86/boot/tools/build.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c index bf262077ec92..4f07df5ac5d9 100644 --- a/arch/x86/boot/tools/build.c +++ b/arch/x86/boot/tools/build.c @@ -53,7 +53,8 @@ int is_big_kernel; #define PECOFF_RELOC_RESERVE 0x20 -unsigned long efi_stub_entry; +unsigned long efi32_stub_entry; +unsigned long efi64_stub_entry; unsigned long efi_pe_entry; unsigned long startup_64; @@ -231,20 +232,26 @@ static void efi_stub_defaults(void) /* Defaults for old kernel */ #ifdef CONFIG_X86_32 efi_pe_entry = 0x10; - efi_stub_entry = 0x30; #else efi_pe_entry = 0x210; - efi_stub_entry = 0x230; startup_64 = 0x200; #endif } static void efi_stub_entry_update(void) { -#ifdef CONFIG_X86_64 /* Yes, this is really how we defined it :( */ - efi_stub_entry -= 0x200; + unsigned long addr = efi32_stub_entry; + +#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 - put_unaligned_le32(efi_stub_entry, &buf[0x264]); + put_unaligned_le32(addr, &buf[0x264]); } #else @@ -289,7 +296,8 @@ static void parse_zoffset(char *fname) p = (char *)buf; while (p && *p) { - PARSE_ZOFS(p, efi_stub_entry); + PARSE_ZOFS(p, efi32_stub_entry); + PARSE_ZOFS(p, efi64_stub_entry); PARSE_ZOFS(p, efi_pe_entry); PARSE_ZOFS(p, startup_64); |