summaryrefslogtreecommitdiff
path: root/src/arch/i386/boot/boot.c
diff options
context:
space:
mode:
authorStefan Reinauer <stepan@coreboot.org>2010-12-11 20:33:41 +0000
committerStefan Reinauer <stepan@openbios.org>2010-12-11 20:33:41 +0000
commit8677a23d5b053d550f70246de9c7dc8fd4e2fbf9 (patch)
treed9a7c6042de85d623739e2679ba90c66aad2797f /src/arch/i386/boot/boot.c
parent198cb96387c457affa01696405ffaa4531e8e361 (diff)
downloadcoreboot-8677a23d5b053d550f70246de9c7dc8fd4e2fbf9.tar.xz
After this has been brought up many times before, rename src/arch/i386 to
src/arch/x86. Signed-off-by: Stefan Reinauer <stepan@coreboot.org> Acked-by: Patrick Georgi <patrick@georgi-clan.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6161 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch/i386/boot/boot.c')
-rw-r--r--src/arch/i386/boot/boot.c186
1 files changed, 0 insertions, 186 deletions
diff --git a/src/arch/i386/boot/boot.c b/src/arch/i386/boot/boot.c
deleted file mode 100644
index d9cb02e776..0000000000
--- a/src/arch/i386/boot/boot.c
+++ /dev/null
@@ -1,186 +0,0 @@
-#include <console/console.h>
-#include <ip_checksum.h>
-#include <boot/elf.h>
-#include <boot/elf_boot.h>
-#include <string.h>
-#include <cpu/x86/multiboot.h>
-
-
-#ifndef CMD_LINE
-#define CMD_LINE ""
-#endif
-
-
-
-#define UPSZ(X) ((sizeof(X) + 3) &~3)
-
-static struct {
- Elf_Bhdr hdr;
- Elf_Nhdr ft_hdr;
- unsigned char ft_desc[UPSZ(FIRMWARE_TYPE)];
- Elf_Nhdr bl_hdr;
- unsigned char bl_desc[UPSZ(BOOTLOADER)];
- Elf_Nhdr blv_hdr;
- unsigned char blv_desc[UPSZ(BOOTLOADER_VERSION)];
- Elf_Nhdr cmd_hdr;
- unsigned char cmd_desc[UPSZ(CMD_LINE)];
-} elf_boot_notes = {
- .hdr = {
- .b_signature = 0x0E1FB007,
- .b_size = sizeof(elf_boot_notes),
- .b_checksum = 0,
- .b_records = 4,
- },
- .ft_hdr = {
- .n_namesz = 0,
- .n_descsz = sizeof(FIRMWARE_TYPE),
- .n_type = EBN_FIRMWARE_TYPE,
- },
- .ft_desc = FIRMWARE_TYPE,
- .bl_hdr = {
- .n_namesz = 0,
- .n_descsz = sizeof(BOOTLOADER),
- .n_type = EBN_BOOTLOADER_NAME,
- },
- .bl_desc = BOOTLOADER,
- .blv_hdr = {
- .n_namesz = 0,
- .n_descsz = sizeof(BOOTLOADER_VERSION),
- .n_type = EBN_BOOTLOADER_VERSION,
- },
- .blv_desc = BOOTLOADER_VERSION,
- .cmd_hdr = {
- .n_namesz = 0,
- .n_descsz = sizeof(CMD_LINE),
- .n_type = EBN_COMMAND_LINE,
- },
- .cmd_desc = CMD_LINE,
-};
-
-
-int elf_check_arch(Elf_ehdr *ehdr)
-{
- return (
- ((ehdr->e_machine == EM_386) || (ehdr->e_machine == EM_486)) &&
- (ehdr->e_ident[EI_CLASS] == ELFCLASS32) &&
- (ehdr->e_ident[EI_DATA] == ELFDATA2LSB)
- );
-
-}
-
-void jmp_to_elf_entry(void *entry, unsigned long buffer, unsigned long size)
-{
- extern unsigned char _ram_seg, _eram_seg;
- unsigned long lb_start, lb_size;
- unsigned long adjust, adjusted_boot_notes;
-
- elf_boot_notes.hdr.b_checksum =
- compute_ip_checksum(&elf_boot_notes, sizeof(elf_boot_notes));
-
- lb_start = (unsigned long)&_ram_seg;
- lb_size = (unsigned long)(&_eram_seg - &_ram_seg);
- adjust = buffer + size - lb_start;
-
- adjusted_boot_notes = (unsigned long)&elf_boot_notes;
- adjusted_boot_notes += adjust;
-
- printk(BIOS_SPEW, "entry = 0x%08lx\n", (unsigned long)entry);
- printk(BIOS_SPEW, "lb_start = 0x%08lx\n", lb_start);
- printk(BIOS_SPEW, "lb_size = 0x%08lx\n", lb_size);
- printk(BIOS_SPEW, "adjust = 0x%08lx\n", adjust);
- printk(BIOS_SPEW, "buffer = 0x%08lx\n", buffer);
- printk(BIOS_SPEW, " elf_boot_notes = 0x%08lx\n", (unsigned long)&elf_boot_notes);
- printk(BIOS_SPEW, "adjusted_boot_notes = 0x%08lx\n", adjusted_boot_notes);
-
- /* Jump to kernel */
- __asm__ __volatile__(
- " cld \n\t"
- /* Save the callee save registers... */
- " pushl %%esi\n\t"
- " pushl %%edi\n\t"
- " pushl %%ebx\n\t"
- /* Save the parameters I was passed */
- " pushl $0\n\t" /* 20 adjust */
- " pushl %0\n\t" /* 16 lb_start */
- " pushl %1\n\t" /* 12 buffer */
- " pushl %2\n\t" /* 8 lb_size */
- " pushl %3\n\t" /* 4 entry */
- " pushl %4\n\t" /* 0 elf_boot_notes */
- /* Compute the adjustment */
- " xorl %%eax, %%eax\n\t"
- " subl 16(%%esp), %%eax\n\t"
- " addl 12(%%esp), %%eax\n\t"
- " addl 8(%%esp), %%eax\n\t"
- " movl %%eax, 20(%%esp)\n\t"
- /* Place a copy of coreboot in its new location */
- /* Move ``longs'' the coreboot size is 4 byte aligned */
- " movl 12(%%esp), %%edi\n\t"
- " addl 8(%%esp), %%edi\n\t"
- " movl 16(%%esp), %%esi\n\t"
- " movl 8(%%esp), %%ecx\n\n"
- " shrl $2, %%ecx\n\t"
- " rep movsl\n\t"
-
- /* Adjust the stack pointer to point into the new coreboot image */
- " addl 20(%%esp), %%esp\n\t"
- /* Adjust the instruction pointer to point into the new coreboot image */
- " movl $1f, %%eax\n\t"
- " addl 20(%%esp), %%eax\n\t"
- " jmp *%%eax\n\t"
- "1: \n\t"
-
- /* Copy the coreboot bounce buffer over coreboot */
- /* Move ``longs'' the coreboot size is 4 byte aligned */
- " movl 16(%%esp), %%edi\n\t"
- " movl 12(%%esp), %%esi\n\t"
- " movl 8(%%esp), %%ecx\n\t"
- " shrl $2, %%ecx\n\t"
- " rep movsl\n\t"
-
- /* Now jump to the loaded image */
- " movl %5, %%eax\n\t"
- " movl 0(%%esp), %%ebx\n\t"
- " call *4(%%esp)\n\t"
-
- /* The loaded image returned? */
- " cli \n\t"
- " cld \n\t"
-
- /* Copy the saved copy of coreboot where coreboot runs */
- /* Move ``longs'' the coreboot size is 4 byte aligned */
- " movl 16(%%esp), %%edi\n\t"
- " movl 12(%%esp), %%esi\n\t"
- " addl 8(%%esp), %%esi\n\t"
- " movl 8(%%esp), %%ecx\n\t"
- " shrl $2, %%ecx\n\t"
- " rep movsl\n\t"
-
- /* Adjust the stack pointer to point into the old coreboot image */
- " subl 20(%%esp), %%esp\n\t"
-
- /* Adjust the instruction pointer to point into the old coreboot image */
- " movl $1f, %%eax\n\t"
- " subl 20(%%esp), %%eax\n\t"
- " jmp *%%eax\n\t"
- "1: \n\t"
-
- /* Drop the parameters I was passed */
- " addl $24, %%esp\n\t"
-
- /* Restore the callee save registers */
- " popl %%ebx\n\t"
- " popl %%edi\n\t"
- " popl %%esi\n\t"
-
- ::
- "ri" (lb_start), "ri" (buffer), "ri" (lb_size),
- "ri" (entry),
-#if CONFIG_MULTIBOOT
- "ri"(mbi), "ri" (MB_MAGIC2)
-#else
- "ri"(adjusted_boot_notes), "ri" (0x0E1FB007)
-#endif
- );
-}
-
-