diff options
| author | Jeff Fan <jeff.fan@intel.com> | 2016-11-11 19:51:36 +0800 |
|---|---|---|
| committer | Jeff Fan <jeff.fan@intel.com> | 2016-11-14 09:56:59 +0800 |
| commit | 8677a56af68ea7fc93938c710be2ec53752ae961 (patch) | |
| tree | 007f52bd2bd6c21330e44c79707ad2dadc82454d | |
| parent | 86af2eb8b4ec03e59c8c26cf7d51d294a7f905e7 (diff) | |
| download | edk2-platforms-8677a56af68ea7fc93938c710be2ec53752ae961.tar.xz | |
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>
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf | 1 | ||||
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/DxeMpLib.c | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf b/UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf index 03a8994516..972c9ad7ed 100644 --- a/UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf +++ b/UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf @@ -58,6 +58,7 @@ [Guids]
gEfiEventExitBootServicesGuid ## CONSUMES ## Event
+ gEfiEventLegacyBootGuid ## CONSUMES ## Event
[Pcd]
gUefiCpuPkgTokenSpaceGuid.PcdCpuMaxLogicalProcessorNumber ## CONSUMES
diff --git a/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c b/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c index 8be0bb885b..7f3900b4c1 100644 --- a/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c @@ -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);
}
/**
|