corinfo: Inital release of the coreinfo code
This is the intial release of the coreinfo payload code. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3173 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
67
payloads/coreinfo/cpuid.S
Normal file
67
payloads/coreinfo/cpuid.S
Normal file
@@ -0,0 +1,67 @@
|
||||
/*
|
||||
* This file is part of the coreinfo project.
|
||||
*
|
||||
* It is derived from the x86info project, which is GPLv2-licensed.
|
||||
*
|
||||
* Copyright (C) 2001-2007 Dave Jones <davej@codemonkey.org.uk>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; version 2 of the License.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/* calling syntax: docpuid(idx,eax,ebx,ecx,edx) */
|
||||
|
||||
.align 4
|
||||
.text
|
||||
|
||||
.global docpuid
|
||||
.type docpuid,@function
|
||||
|
||||
docpuid:
|
||||
pushl %ebp
|
||||
movl %esp, %ebp
|
||||
pushl %edi
|
||||
pushl %ebx
|
||||
pushl %ecx
|
||||
pushl %edx
|
||||
movl 8(%ebp),%eax
|
||||
cpuid
|
||||
movl 12(%ebp),%edi
|
||||
test %edi,%edi
|
||||
jz L1
|
||||
movl %eax, (%edi)
|
||||
|
||||
L1: movl 16(%ebp),%edi
|
||||
test %edi,%edi
|
||||
jz L2
|
||||
movl %ebx,(%edi)
|
||||
|
||||
L2: movl 20(%ebp),%edi
|
||||
test %edi,%edi
|
||||
jz L3
|
||||
movl %ecx,(%edi)
|
||||
|
||||
L3: movl 24(%ebp), %edi
|
||||
test %edi,%edi
|
||||
jz L4
|
||||
movl %edx,(%edi)
|
||||
|
||||
L4: popl %edx
|
||||
popl %ecx
|
||||
popl %ebx
|
||||
popl %edi
|
||||
movl %ebp,%esp
|
||||
popl %ebp
|
||||
ret
|
||||
|
||||
.section .note.GNU-stack,"", @progbits
|
Reference in New Issue
Block a user