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try to fix 0x10000026


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2235 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Li-Ta Lo
2006-04-03 22:20:05 +00:00
parent 81efd7ab6d
commit 8854d30d6e
6 changed files with 104 additions and 51 deletions
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31
src/cpu/amd/model_gx2/vsmsetup.c
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@ -194,8 +194,9 @@ static void real_mode_switch_call_vsm(unsigned long smm, unsigned long sysm)
/* Dump zeros in the other segregs */
" mov %ax, %es \n"
" mov %ax, %fs \n"
" mov %ax, %gs \n"
/* FixMe: Big real mode for gs, fs? */
//" mov %ax, %fs \n"
//" mov %ax, %gs \n"
" mov $0x40, %ax \n"
" mov %ax, %ds \n"
" mov %cx, %ax \n"
@ -256,13 +257,18 @@ void do_vsmbios(void)
/* this is the base of rom on the GX2 at present. At some point, this has to be
* much better parameterized
*/
rom = 0xfff80000;
//rom = 0xfff80000;
rom = 0xfffc0000;
buf = (unsigned char *) rom;
printk_debug("buf %p *buf %d buf[256k] %d\n", buf, buf[0], buf[256*1024]);
printk_debug("buf[0x20] signature is %x:%x:%x:%x\n", buf[0x20] ,buf[0x21] ,buf[0x22],buf[0x23]);
/* check for post code at start of vsainit.bin. If you don't see it, don't bother. */
if ((buf[0x20] != 0xb0) || (buf[0x21] != 0x10) || (buf[0x22] != 0xe6) || (buf[0x23] != 0x80)) {
printk_debug("buf %p *buf %d buf[256k] %d\n",
buf, buf[0], buf[256*1024]);
printk_debug("buf[0x20] signature is %x:%x:%x:%x\n",
buf[0x20] ,buf[0x21] ,buf[0x22],buf[0x23]);
/* check for post code at start of vsainit.bin. If you don't see it,
don't bother. */
if ((buf[0x20] != 0xb0) || (buf[0x21] != 0x10) ||
(buf[0x22] != 0xe6) || (buf[0x23] != 0x80)) {
printk_err("do_vsmbios: no vsainit.bin signature, skipping!\n");
return;
}
@ -272,7 +278,6 @@ void do_vsmbios(void)
/* ecx gets smm, edx gets sysm */
printk_err("Call real_mode_switch_call_vsm\n");
real_mode_switch_call_vsm(0x10000026, 0x10000028);
}
@ -351,7 +356,7 @@ void callbiosint(void)
// - provides us with a temp for the %cr0 mods.
" pushl %eax \n"
" movb $0xbb, %al\n"
" outb %al, $0x80\n"
" outb %al, $0x80\n"
" movl %cr0, %eax\n"
" orl $0x00000001, %eax\n" /* PE = 1 */
" movl %eax, %cr0\n"
@ -365,8 +370,8 @@ void callbiosint(void)
" mov %ax, %fs \n"
" mov %ax, %gs \n"
" mov %ax, %ss \n"
" lidt idtarg \n"
" call biosint \n"
" lidt idtarg \n"
" call biosint \n"
// back to real mode ...
" ljmp $0x28, $__rms_16bit2\n"
"__rms_16bit2: \n"
@ -454,7 +459,7 @@ int biosint(unsigned long intnumber,
unsigned long cs;
unsigned long flags;
int ret = -1;
ip = cs_ip & 0xffff;
cs = cs_ip >> 16;
flags = stackflags;
@ -466,6 +471,8 @@ int biosint(unsigned long intnumber,
ebp, esp, edi, esi);
printk_debug("biosint: ip 0x%x cs 0x%x flags 0x%x\n",
ip, cs, flags);
printk_debug("biosint: gs 0x%x fs 0x%x ds 0x%x es 0x%x\n",
gsfs >> 16, gsfs & 0xffff, dses >> 16, dses & 0xffff);
// cases in a good compiler are just as good as your own tables.
switch (intnumber) {