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UefiCpuPkg/DxeMpLib: Place APs to suitable state on Legacy OS boot 

Currently, DxeMpLib only places APs into specified c-state in Exit Boot Service
callback function for UEFI OS boot. We need to put APs into specified c-state
for legacy OS boot also.

https://bugzilla.tianocore.org/show_bug.cgi?id=210

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
This commit is contained in:
Jeff Fan 2016-11-11 19:51:36 +08:00
parent 86af2eb8b4
commit 8677a56af6
2 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf
View File

@ -58,6 +58,7 @@
[Guids]
gEfiEventExitBootServicesGuid ## CONSUMES ## Event
gEfiEventLegacyBootGuid ## CONSUMES ## Event
[Pcd]
gUefiCpuPkgTokenSpaceGuid.PcdCpuMaxLogicalProcessorNumber ## CONSUMES

12
UefiCpuPkg/Library/MpInitLib/DxeMpLib.c
View File

@ -22,6 +22,7 @@
CPU_MP_DATA *mCpuMpData = NULL;
EFI_EVENT mCheckAllApsEvent = NULL;
EFI_EVENT mMpInitExitBootServicesEvent = NULL;
EFI_EVENT mLegacyBootEvent = NULL;
volatile BOOLEAN mStopCheckAllApsStatus = TRUE;
VOID *mReservedApLoopFunc = NULL;
@ -340,6 +341,7 @@ InitMpGlobalData (
AP_CHECK_INTERVAL
);
ASSERT_EFI_ERROR (Status);
Status = gBS->CreateEvent (
EVT_SIGNAL_EXIT_BOOT_SERVICES,
TPL_CALLBACK,
@ -348,6 +350,16 @@ InitMpGlobalData (
&mMpInitExitBootServicesEvent
);
ASSERT_EFI_ERROR (Status);
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_CALLBACK,
MpInitChangeApLoopCallback,
NULL,
&gEfiEventLegacyBootGuid,
&mLegacyBootEvent
);
ASSERT_EFI_ERROR (Status);
}
/**