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| author | Michael Kinney <michael.d.kinney@intel.com> | 2016-02-18 13:09:23 -0800 |
|---|---|---|
| committer | Michael Kinney <michael.d.kinney@intel.com> | 2016-02-22 10:59:41 -0800 |
| commit | e1695f8dcf18f612d34f6da0a4579a5b7c49ef9b (patch) | |
| tree | 21e1079b6339c020420c274809c67221877d84fb /UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h | |
| parent | d691abec1bae4db5e4c58be7dbce40974d810f7a (diff) | |
| download | edk2-e1695f8dcf18f612d34f6da0a4579a5b7c49ef9b.tar.gz edk2-e1695f8dcf18f612d34f6da0a4579a5b7c49ef9b.tar.bz2 edk2-e1695f8dcf18f612d34f6da0a4579a5b7c49ef9b.zip | |
UefiCpuPkg/PiSmmCpuDxeSmm: Enable/Restore XD in SMM
If XD is supported, then SMM enables it. The non-SMM execution
environment can choose to enable or disable XD, so the state of
XD must be detected in each SMI and be enabled/restored.
Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h')
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h index c6ce1f59ad..5488c148e8 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h @@ -21,6 +21,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. /// MSR Register Index
///
#define MSR_IA32_MISC_ENABLE 0x1A0
+#define B_XD_DISABLE_BIT BIT34
//
// External functions
|