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fix a bug in pcibios check.

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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5502 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Stefan Reinauer
2010-04-26 12:08:51 +00:00
committed by Stefan Reinauer
parent 79255fcdb3
commit 607cdf62b6
3 changed files with 62 additions and 78 deletions
Download Patch File Download Diff File Expand all files Collapse all files

81
src/arch/i386/lib/c_start.S
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@@ -21,7 +21,7 @@ _start:
leal _stack, %edi
movl $_estack, %ecx
subl %edi, %ecx
shrl $2, %ecx /* it is 32 bit align, right? */
shrl $2, %ecx /* it is 32 bit aligned, right? */
xorl %eax, %eax
rep
stosl
@@ -31,7 +31,7 @@ _start:
movl $_ebss, %ecx
subl %edi, %ecx
jz .Lnobss
shrl $2, %ecx /* it is 32 bit align, right? */
shrl $2, %ecx /* it is 32 bit aligned, right? */
xorl %eax, %eax
rep
stosl
@@ -72,20 +72,20 @@ _start:
* Now we are finished. Memory is up, data is copied and
* bss is cleared. Now we call the main routine and
* let it do the rest.
*/
*/
post_code(0xfe) /* post fe */
/* Restore the stack location */
movl %ebp, %esp
/* The boot_complete flag has already been pushed */
call hardwaremain
/*NOTREACHED*/
/* NOTREACHED */
.Lhlt:
post_code(0xee) /* post ee */
hlt
jmp .Lhlt
vec0:
pushl $0 /* error code */
pushl $0 /* vector */
@@ -94,103 +94,104 @@ vec1:
pushl $0 /* error code */
pushl $1 /* vector */
jmp int_hand
vec2:
pushl $0 /* error code */
pushl $2 /* vector */
jmp int_hand
vec3:
pushl $0 /* error code */
pushl $3 /* vector */
jmp int_hand
vec4:
pushl $0 /* error code */
pushl $4 /* vector */
jmp int_hand
vec5:
pushl $0 /* error code */
pushl $5 /* vector */
jmp int_hand
vec6:
pushl $0 /* error code */
pushl $6 /* vector */
jmp int_hand
vec7:
pushl $0 /* error code */
pushl $7 /* vector */
jmp int_hand
vec8:
/* error code */
pushl $8 /* vector */
jmp int_hand
.word 0x9090
vec9:
pushl $0 /* error code */
pushl $9 /* vector */
jmp int_hand
vec10:
/* error code */
pushl $10 /* vector */
jmp int_hand
.word 0x9090
vec11:
/* error code */
pushl $11 /* vector */
jmp int_hand
.word 0x9090
vec12:
/* error code */
pushl $12 /* vector */
jmp int_hand
.word 0x9090
vec13:
/* error code */
pushl $13 /* vector */
jmp int_hand
.word 0x9090
vec14:
/* error code */
pushl $14 /* vector */
jmp int_hand
.word 0x9090
vec15:
pushl $0 /* error code */
pushl $15 /* vector */
jmp int_hand
vec16:
pushl $0 /* error code */
pushl $16 /* vector */
jmp int_hand
vec17:
/* error code */
pushl $17 /* vector */
jmp int_hand
.word 0x9090
vec18:
pushl $0 /* error code */
pushl $18 /* vector */
jmp int_hand
vec19:
pushl $0 /* error code */
pushl $19 /* vector */
jmp int_hand
int_hand:
/* At this point on the stack there is:
* 0(%esp) vector
@@ -232,7 +233,7 @@ int_hand:
.globl gdb_stub_breakpoint
gdb_stub_breakpoint:
popl %eax /* Return address */
pushfl
pushfl
pushl %cs
pushl %eax /* Return address */
pushl $0 /* No error code */
@@ -260,7 +261,7 @@ gdtaddr:
*
* When we're executing code from RAM, we want to do more complex
* stuff, like initializing PCI option roms in real mode, or doing
* a resume from a suspend to ram.
* a resume from a suspend to ram.
*/
gdt:
/* selgdt 0, unused */
@@ -271,13 +272,13 @@ gdt:
.word 0x0000, 0x0000 /* dummy */
.byte 0x00, 0x00, 0x00, 0x00
/* selgdt 0x10, flat code segment */
.word 0xffff, 0x0000
.byte 0x00, 0x9b, 0xcf, 0x00 /* G=1 and 0x0f, So we get 4Gbytes for limit */
/* selgdt 0x10, flat code segment */
.word 0xffff, 0x0000
.byte 0x00, 0x9b, 0xcf, 0x00 /* G=1 and 0x0f, So we get 4Gbytes for limit */
/* selgdt 0x18, flat data segment */
.word 0xffff, 0x0000
.byte 0x00, 0x93, 0xcf, 0x00
.word 0xffff, 0x0000
.byte 0x00, 0x93, 0xcf, 0x00
/* selgdt 0x20, unused */
.word 0x0000, 0x0000 /* dummy */
@@ -285,31 +286,31 @@ gdt:
/* The next two entries are used for executing VGA option ROMs */
/* selgdt 0x28 16-bit 64k code at 0x00000000 */
/* selgdt 0x28 16 bit 64k code at 0x00000000 */
.word 0xffff, 0x0000
.byte 0, 0x9a, 0, 0
/* selgdt 0x30 16-bit 64k data at 0x00000000 */
/* selgdt 0x30 16 bit 64k data at 0x00000000 */
.word 0xffff, 0x0000
.byte 0, 0x92, 0, 0
/* The next two entries are used for ACPI S3 RESUME */
/* selgdt 0x38, flat data segment 16bit */
/* selgdt 0x38, flat data segment 16 bit */
.word 0x0000, 0x0000 /* dummy */
.byte 0x00, 0x93, 0x8f, 0x00 /* G=1 and 0x0f, So we get 4Gbytes for limit */
.byte 0x00, 0x93, 0x8f, 0x00 /* G=1 and 0x0f, So we get 4Gbytes for limit */
/* selgdt 0x40, flat code segment 16bit */
.word 0xffff, 0x0000
.byte 0x00, 0x9b, 0x8f, 0x00 /* G=1 and 0x0f, So we get 4Gbytes for limit */
/* selgdt 0x40, flat code segment 16 bit */
.word 0xffff, 0x0000
.byte 0x00, 0x9b, 0x8f, 0x00 /* G=1 and 0x0f, So we get 4Gbytes for limit */
gdt_end:
idtarg:
.word _idt_end - _idt - 1 /* limit */
.long _idt
.word 0
.word 0
_idt:
.fill 20, 8, 0 # idt is unitiailzed
.fill 20, 8, 0 # idt is uninitialized
_idt_end:
.previous