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| author | Laszlo Ersek <lersek@redhat.com> | 2016-07-07 15:02:11 +0200 |
|---|---|---|
| committer | Laszlo Ersek <lersek@redhat.com> | 2016-07-15 07:38:56 +0200 |
| commit | dbab994991c76dc4b9414a3d80997b64b0fdf9c5 (patch) | |
| tree | 589e82c2872919675601e924a673f63e9ad41a4c /OvmfPkg/PlatformPei/Platform.h | |
| parent | f0e6a56a9a2fbe6e9a1897e9a10b4bb3aca76cff (diff) | |
| download | edk2-dbab994991c76dc4b9414a3d80997b64b0fdf9c5.tar.gz edk2-dbab994991c76dc4b9414a3d80997b64b0fdf9c5.tar.bz2 edk2-dbab994991c76dc4b9414a3d80997b64b0fdf9c5.zip | |
OvmfPkg/PlatformPei: program MSR_IA32_FEATURE_CONTROL from fw_cfg
Under certain circumstances, QEMU exposes the "etc/msr_feature_control"
fw_cfg file, with a 64-bit little endian value. The firmware is supposed
to write this value to MSR_IA32_FEATURE_CONTROL (0x3a), on all processors,
on the normal and the S3 resume boot paths.
Utilize EFI_PEI_MPSERVICES_PPI to implement this feature.
Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Fixes: https://github.com/tianocore/edk2/issues/97
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Diffstat (limited to 'OvmfPkg/PlatformPei/Platform.h')
| -rw-r--r-- | OvmfPkg/PlatformPei/Platform.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/OvmfPkg/PlatformPei/Platform.h b/OvmfPkg/PlatformPei/Platform.h index bb988ea19e..eda765be30 100644 --- a/OvmfPkg/PlatformPei/Platform.h +++ b/OvmfPkg/PlatformPei/Platform.h @@ -73,6 +73,11 @@ PeiFvInitialization ( VOID
);
+VOID
+InstallFeatureControlCallback (
+ VOID
+ );
+
EFI_STATUS
InitializeXen (
VOID
|