diff options
Diffstat (limited to 'arch/x86/boot')
| -rw-r--r-- | arch/x86/boot/compressed/eboot.c | 14 | ||||
| -rw-r--r-- | arch/x86/boot/header.S | 2 | ||||
| -rw-r--r-- | arch/x86/boot/tools/build.c | 25 |
3 files changed, 34 insertions, 7 deletions
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c index fec216f..01cbb87 100644 --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -904,11 +904,19 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table) memset(boot_params, 0x0, 0x4000); - /* Copy first two sectors to boot_params */ - memcpy(boot_params, image->image_base, 1024); - hdr = &boot_params->hdr; + /* Copy the second sector to boot_params */ + memcpy(&hdr->jump, image->image_base + 512, 512); + + /* + * Fill out some of the header fields ourselves because the + * EFI firmware loader doesn't load the first sector. + */ + hdr->root_flags = 1; + hdr->vid_mode = 0xffff; + hdr->boot_flag = 0xAA55; + /* * The EFI firmware loader could have placed the kernel image * anywhere in memory, but the kernel has various restrictions diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S index 4e9124b..4ceb56e 100644 --- a/arch/x86/boot/header.S +++ b/arch/x86/boot/header.S @@ -147,7 +147,7 @@ optional_header: # Filled in by build.c .long 0x0000 # AddressOfEntryPoint - .long 0x0000 # BaseOfCode + .long 0x0200 # BaseOfCode #ifdef CONFIG_X86_32 .long 0 # data #endif diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c index 4e9bd6b..2aeab3d 100644 --- a/arch/x86/boot/tools/build.c +++ b/arch/x86/boot/tools/build.c @@ -202,12 +202,19 @@ int main(int argc, char ** argv) pe_header = *(unsigned int *)&buf[0x3c]; - /* Size of code */ - *(unsigned int *)&buf[pe_header + 0x1c] = file_sz; - /* Size of image */ *(unsigned int *)&buf[pe_header + 0x50] = file_sz; + /* + * Subtract the size of the first section (512 bytes) which + * includes the header and .reloc section. The remaining size + * is that of the .text section. + */ + file_sz -= 512; + + /* Size of code */ + *(unsigned int *)&buf[pe_header + 0x1c] = file_sz; + #ifdef CONFIG_X86_32 /* Address of entry point */ *(unsigned int *)&buf[pe_header + 0x28] = i; @@ -215,8 +222,14 @@ int main(int argc, char ** argv) /* .text size */ *(unsigned int *)&buf[pe_header + 0xb0] = file_sz; + /* .text vma */ + *(unsigned int *)&buf[pe_header + 0xb4] = 0x200; + /* .text size of initialised data */ *(unsigned int *)&buf[pe_header + 0xb8] = file_sz; + + /* .text file offset */ + *(unsigned int *)&buf[pe_header + 0xbc] = 0x200; #else /* * Address of entry point. startup_32 is at the beginning and @@ -228,8 +241,14 @@ int main(int argc, char ** argv) /* .text size */ *(unsigned int *)&buf[pe_header + 0xc0] = file_sz; + /* .text vma */ + *(unsigned int *)&buf[pe_header + 0xc4] = 0x200; + /* .text size of initialised data */ *(unsigned int *)&buf[pe_header + 0xc8] = file_sz; + + /* .text file offset */ + *(unsigned int *)&buf[pe_header + 0xcc] = 0x200; #endif /* CONFIG_X86_32 */ #endif /* CONFIG_EFI_STUB */ |
