diff options
Diffstat (limited to 'arch/x86/boot')
-rw-r--r-- | arch/x86/boot/code16gcc.h | 24 | ||||
-rw-r--r-- | arch/x86/boot/compressed/Makefile | 3 | ||||
-rw-r--r-- | arch/x86/boot/compressed/eboot.c | 48 | ||||
-rw-r--r-- | arch/x86/boot/compressed/eboot.h | 16 | ||||
-rw-r--r-- | arch/x86/boot/header.S | 28 | ||||
-rw-r--r-- | arch/x86/boot/tools/build.c | 38 |
6 files changed, 94 insertions, 63 deletions
diff --git a/arch/x86/boot/code16gcc.h b/arch/x86/boot/code16gcc.h index d93e48010b61..5ff426535397 100644 --- a/arch/x86/boot/code16gcc.h +++ b/arch/x86/boot/code16gcc.h @@ -1,15 +1,11 @@ -/* - * code16gcc.h - * - * This file is -include'd when compiling 16-bit C code. - * Note: this asm() needs to be emitted before gcc emits any code. - * Depending on gcc version, this requires -fno-unit-at-a-time or - * -fno-toplevel-reorder. - * - * Hopefully gcc will eventually have a real -m16 option so we can - * drop this hack long term. - */ +# +# code16gcc.h +# +# This file is added to the assembler via -Wa when compiling 16-bit C code. +# This is done this way instead via asm() to make sure gcc does not reorder +# things around us. +# +# gcc 4.9+ has a real -m16 option so we can drop this hack long term. +# -#ifndef __ASSEMBLY__ -asm(".code16gcc"); -#endif + .code16gcc diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index 0fcd9133790c..7a801a310e37 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -33,7 +33,8 @@ VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \ $(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone ifeq ($(CONFIG_EFI_STUB), y) - VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o + VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o \ + $(objtree)/drivers/firmware/efi/libstub/lib.a endif $(obj)/vmlinux: $(VMLINUX_OBJS) FORCE diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c index 0331d765c2bb..f277184e2ac1 100644 --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -19,10 +19,7 @@ static efi_system_table_t *sys_table; -static struct efi_config *efi_early; - -#define efi_call_early(f, ...) \ - efi_early->call(efi_early->f, __VA_ARGS__); +struct efi_config *efi_early; #define BOOT_SERVICES(bits) \ static void setup_boot_services##bits(struct efi_config *c) \ @@ -48,8 +45,7 @@ static void setup_boot_services##bits(struct efi_config *c) \ BOOT_SERVICES(32); BOOT_SERVICES(64); -static void efi_printk(efi_system_table_t *, char *); -static void efi_char16_printk(efi_system_table_t *, efi_char16_t *); +void efi_char16_printk(efi_system_table_t *, efi_char16_t *); static efi_status_t __file_size32(void *__fh, efi_char16_t *filename_16, @@ -156,7 +152,7 @@ grow: return status; } -static efi_status_t +efi_status_t efi_file_size(efi_system_table_t *sys_table, void *__fh, efi_char16_t *filename_16, void **handle, u64 *file_sz) { @@ -166,7 +162,7 @@ efi_file_size(efi_system_table_t *sys_table, void *__fh, return __file_size32(__fh, filename_16, handle, file_sz); } -static inline efi_status_t +efi_status_t efi_file_read(void *handle, unsigned long *size, void *addr) { unsigned long func; @@ -184,7 +180,7 @@ efi_file_read(void *handle, unsigned long *size, void *addr) } } -static inline efi_status_t efi_file_close(void *handle) +efi_status_t efi_file_close(void *handle) { if (efi_early->is64) { efi_file_handle_64_t *fh = handle; @@ -249,7 +245,7 @@ static inline efi_status_t __open_volume64(void *__image, void **__fh) return status; } -static inline efi_status_t +efi_status_t efi_open_volume(efi_system_table_t *sys_table, void *__image, void **__fh) { if (efi_early->is64) @@ -258,7 +254,7 @@ efi_open_volume(efi_system_table_t *sys_table, void *__image, void **__fh) return __open_volume32(__image, __fh); } -static void efi_char16_printk(efi_system_table_t *table, efi_char16_t *str) +void efi_char16_printk(efi_system_table_t *table, efi_char16_t *str) { unsigned long output_string; size_t offset; @@ -284,8 +280,6 @@ static void efi_char16_printk(efi_system_table_t *table, efi_char16_t *str) } } -#include "../../../../drivers/firmware/efi/efi-stub-helper.c" - static void find_bits(unsigned long mask, u8 *pos, u8 *size) { u8 first, len; @@ -1038,6 +1032,7 @@ struct boot_params *make_boot_params(struct efi_config *c) int i; unsigned long ramdisk_addr; unsigned long ramdisk_size; + unsigned long initrd_addr_max; efi_early = c; sys_table = (efi_system_table_t *)(unsigned long)efi_early->table; @@ -1100,14 +1095,21 @@ struct boot_params *make_boot_params(struct efi_config *c) memset(sdt, 0, sizeof(*sdt)); + if (hdr->xloadflags & XLF_CAN_BE_LOADED_ABOVE_4G) + initrd_addr_max = -1UL; + else + initrd_addr_max = hdr->initrd_addr_max; + status = handle_cmdline_files(sys_table, image, (char *)(unsigned long)hdr->cmd_line_ptr, - "initrd=", hdr->initrd_addr_max, + "initrd=", initrd_addr_max, &ramdisk_addr, &ramdisk_size); if (status != EFI_SUCCESS) goto fail2; - hdr->ramdisk_image = ramdisk_addr; - hdr->ramdisk_size = ramdisk_size; + hdr->ramdisk_image = ramdisk_addr & 0xffffffff; + hdr->ramdisk_size = ramdisk_size & 0xffffffff; + boot_params->ext_ramdisk_image = (u64)ramdisk_addr >> 32; + boot_params->ext_ramdisk_size = (u64)ramdisk_size >> 32; return boot_params; fail2: @@ -1374,7 +1376,10 @@ struct boot_params *efi_main(struct efi_config *c, setup_graphics(boot_params); - setup_efi_pci(boot_params); + status = setup_efi_pci(boot_params); + if (status != EFI_SUCCESS) { + efi_printk(sys_table, "setup_efi_pci() failed!\n"); + } status = efi_call_early(allocate_pool, EFI_LOADER_DATA, sizeof(*gdt), (void **)&gdt); @@ -1401,16 +1406,20 @@ struct boot_params *efi_main(struct efi_config *c, hdr->init_size, hdr->init_size, hdr->pref_address, hdr->kernel_alignment); - if (status != EFI_SUCCESS) + if (status != EFI_SUCCESS) { + efi_printk(sys_table, "efi_relocate_kernel() failed!\n"); goto fail; + } hdr->pref_address = hdr->code32_start; hdr->code32_start = bzimage_addr; } status = exit_boot(boot_params, handle, is64); - if (status != EFI_SUCCESS) + if (status != EFI_SUCCESS) { + efi_printk(sys_table, "exit_boot() failed!\n"); goto fail; + } memset((char *)gdt->address, 0x0, gdt->size); desc = (struct desc_struct *)gdt->address; @@ -1470,5 +1479,6 @@ struct boot_params *efi_main(struct efi_config *c, return boot_params; fail: + efi_printk(sys_table, "efi_main() failed!\n"); return NULL; } diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h index c88c31ecad12..d487e727f1ec 100644 --- a/arch/x86/boot/compressed/eboot.h +++ b/arch/x86/boot/compressed/eboot.h @@ -103,20 +103,4 @@ struct efi_uga_draw_protocol { void *blt; }; -struct efi_config { - u64 image_handle; - u64 table; - u64 allocate_pool; - u64 allocate_pages; - u64 get_memory_map; - u64 free_pool; - u64 free_pages; - u64 locate_handle; - u64 handle_protocol; - u64 exit_boot_services; - u64 text_output; - efi_status_t (*call)(unsigned long, ...); - bool is64; -} __packed; - #endif /* BOOT_COMPRESSED_EBOOT_H */ diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S index 84c223479e3c..16ef02596db2 100644 --- a/arch/x86/boot/header.S +++ b/arch/x86/boot/header.S @@ -91,10 +91,9 @@ bs_die: .section ".bsdata", "a" bugger_off_msg: - .ascii "Direct floppy boot is not supported. " - .ascii "Use a boot loader program instead.\r\n" + .ascii "Use a boot loader.\r\n" .ascii "\n" - .ascii "Remove disk and press any key to reboot ...\r\n" + .ascii "Remove disk and press any key to reboot...\r\n" .byte 0 #ifdef CONFIG_EFI_STUB @@ -108,7 +107,7 @@ coff_header: #else .word 0x8664 # x86-64 #endif - .word 3 # nr_sections + .word 4 # nr_sections .long 0 # TimeDateStamp .long 0 # PointerToSymbolTable .long 1 # NumberOfSymbols @@ -155,7 +154,7 @@ extra_header_fields: #else .quad 0 # ImageBase #endif - .long 0x20 # SectionAlignment + .long CONFIG_PHYSICAL_ALIGN # SectionAlignment .long 0x20 # FileAlignment .word 0 # MajorOperatingSystemVersion .word 0 # MinorOperatingSystemVersion @@ -250,6 +249,25 @@ section_table: .word 0 # NumberOfLineNumbers .long 0x60500020 # Characteristics (section flags) + # + # The offset & size fields are filled in by build.c. + # + .ascii ".bss" + .byte 0 + .byte 0 + .byte 0 + .byte 0 + .long 0 + .long 0x0 + .long 0 # Size of initialized data + # on disk + .long 0x0 + .long 0 # PointerToRelocations + .long 0 # PointerToLineNumbers + .word 0 # NumberOfRelocations + .word 0 # NumberOfLineNumbers + .long 0xc8000080 # Characteristics (section flags) + #endif /* CONFIG_EFI_STUB */ # Kernel attributes; used by setup. This is part 1 of the diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c index 1a2f2121cada..a7661c430cd9 100644 --- a/arch/x86/boot/tools/build.c +++ b/arch/x86/boot/tools/build.c @@ -143,7 +143,7 @@ static void usage(void) #ifdef CONFIG_EFI_STUB -static void update_pecoff_section_header(char *section_name, u32 offset, u32 size) +static void update_pecoff_section_header_fields(char *section_name, u32 vma, u32 size, u32 datasz, u32 offset) { unsigned int pe_header; unsigned short num_sections; @@ -164,10 +164,10 @@ static void update_pecoff_section_header(char *section_name, u32 offset, u32 siz put_unaligned_le32(size, section + 0x8); /* section header vma field */ - put_unaligned_le32(offset, section + 0xc); + put_unaligned_le32(vma, section + 0xc); /* section header 'size of initialised data' field */ - put_unaligned_le32(size, section + 0x10); + put_unaligned_le32(datasz, section + 0x10); /* section header 'file offset' field */ put_unaligned_le32(offset, section + 0x14); @@ -179,6 +179,11 @@ static void update_pecoff_section_header(char *section_name, u32 offset, u32 siz } } +static void update_pecoff_section_header(char *section_name, u32 offset, u32 size) +{ + update_pecoff_section_header_fields(section_name, offset, size, size, offset); +} + static void update_pecoff_setup_and_reloc(unsigned int size) { u32 setup_offset = 0x200; @@ -203,9 +208,6 @@ static void update_pecoff_text(unsigned int text_start, unsigned int file_sz) pe_header = get_unaligned_le32(&buf[0x3c]); - /* Size of image */ - put_unaligned_le32(file_sz, &buf[pe_header + 0x50]); - /* * Size of code: Subtract the size of the first sector (512 bytes) * which includes the header. @@ -220,6 +222,22 @@ static void update_pecoff_text(unsigned int text_start, unsigned int file_sz) update_pecoff_section_header(".text", text_start, text_sz); } +static void update_pecoff_bss(unsigned int file_sz, unsigned int init_sz) +{ + unsigned int pe_header; + unsigned int bss_sz = init_sz - file_sz; + + pe_header = get_unaligned_le32(&buf[0x3c]); + + /* Size of uninitialized data */ + put_unaligned_le32(bss_sz, &buf[pe_header + 0x24]); + + /* Size of image */ + put_unaligned_le32(init_sz, &buf[pe_header + 0x50]); + + update_pecoff_section_header_fields(".bss", file_sz, bss_sz, 0, 0); +} + static int reserve_pecoff_reloc_section(int c) { /* Reserve 0x20 bytes for .reloc section */ @@ -259,6 +277,8 @@ static void efi_stub_entry_update(void) 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 update_pecoff_bss(unsigned int file_sz, + unsigned int init_sz) {} static inline void efi_stub_defaults(void) {} static inline void efi_stub_entry_update(void) {} @@ -310,7 +330,7 @@ static void parse_zoffset(char *fname) int main(int argc, char ** argv) { - unsigned int i, sz, setup_sectors; + unsigned int i, sz, setup_sectors, init_sz; int c; u32 sys_size; struct stat sb; @@ -376,7 +396,9 @@ int main(int argc, char ** argv) buf[0x1f1] = setup_sectors-1; put_unaligned_le32(sys_size, &buf[0x1f4]); - update_pecoff_text(setup_sectors * 512, sz + i + ((sys_size * 16) - sz)); + update_pecoff_text(setup_sectors * 512, i + (sys_size * 16)); + init_sz = get_unaligned_le32(&buf[0x260]); + update_pecoff_bss(i + (sys_size * 16), init_sz); efi_stub_entry_update(); |