You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
2.3 KiB
88 lines
2.3 KiB
/*
|
|
* Copyright 2002-2019 Intel Corporation.
|
|
*
|
|
* This software is provided to you as Sample Source Code as defined in the accompanying
|
|
* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
|
|
* section 1.L.
|
|
*
|
|
* This software and the related documents are provided as is, with no express or implied
|
|
* warranties, other than those that are expressly stated in the License.
|
|
*/
|
|
|
|
#include "asm_macros.h"
|
|
|
|
.data
|
|
.extern xsaveArea
|
|
.extern flags
|
|
|
|
.text
|
|
|
|
# void DoXsave();
|
|
# This function calls xsave and stores the FP state in the given dst area.
|
|
# The caller is expected to allocate enough space for the xsave area.
|
|
# The function expects the given dst pointer to be properly aligned for the xsave instruction.
|
|
DECLARE_FUNCTION_AS(DoXsave)
|
|
DoXsave:
|
|
mov (flags), %eax
|
|
lea xsaveArea, %ecx
|
|
xor %edx, %edx
|
|
|
|
# Do xsave
|
|
xsave (%ecx)
|
|
|
|
ret
|
|
|
|
# void DoXsaveOpt();
|
|
# This function calls xsaveopt and stores the FP state in the given dst area.
|
|
# The caller is expected to allocate enough space for the xsaveopt area.
|
|
# The function expects the given dst pointer to be properly aligned for the xsaveopt instruction.
|
|
DECLARE_FUNCTION_AS(DoXsaveOpt)
|
|
DoXsaveOpt:
|
|
mov (flags), %eax
|
|
lea xsaveArea, %ecx
|
|
xor %edx, %edx
|
|
|
|
# Do xsaveopt
|
|
xsaveopt (%ecx)
|
|
|
|
ret
|
|
|
|
# void DoXrstor();
|
|
# This function calls xrstor and restores the specified thetures from the xsave dst area.
|
|
# The function expects the given dst pointer to be properly aligned
|
|
DECLARE_FUNCTION_AS(DoXrstor)
|
|
DoXrstor:
|
|
mov (flags), %eax
|
|
lea xsaveArea, %ecx
|
|
xor %edx, %edx
|
|
|
|
# Do xrstor
|
|
xrstor (%ecx)
|
|
|
|
ret
|
|
|
|
# void DoFxsave();
|
|
# This function calls fxsave and stores the legacy FP state in the given dst area.
|
|
# The caller is expected to allocate enough space for the fxsave area.
|
|
# The function expects the given dst pointer to be properly aligned for the xsave instruction.
|
|
DECLARE_FUNCTION_AS(DoFxsave)
|
|
DoFxsave:
|
|
lea xsaveArea, %ecx
|
|
|
|
# Do fxsave
|
|
fxsave (%ecx)
|
|
|
|
ret
|
|
|
|
# void DoFxrstor();
|
|
# This function calls fxrstor and restores the legacy FP state fxsave dst area.
|
|
# The function expects the given dst pointer to be properly aligned
|
|
DECLARE_FUNCTION_AS(DoFxrstor)
|
|
DoFxrstor:
|
|
lea xsaveArea, %ecx
|
|
|
|
# Do fxrstor
|
|
fxrstor (%ecx)
|
|
|
|
ret
|