diff options
| author | Jeff Fan <jeff.fan@intel.com> | 2016-07-21 21:23:05 +0800 |
|---|---|---|
| committer | Jeff Fan <jeff.fan@intel.com> | 2016-08-17 20:02:17 +0800 |
| commit | e37109bcc75b3242fccb223979f954c162ee103f (patch) | |
| tree | 2926b693e6d3b8daddbc61e1b87c19debd70650e /UefiCpuPkg/Library | |
| parent | 41be0da59a6e0366e5e52f9c72ec9228a92a8c01 (diff) | |
| download | edk2-platforms-e37109bcc75b3242fccb223979f954c162ee103f.tar.xz | |
UefiCpuPkg/MpInitLib: Implementation of MpInitLibEnableDisableAP()
v4:
1. Simply the internal function MpInitLibEnableDisableAP()'s function
header due to it is duplicated with MpInitLibEnableDisableAP().
v3:
1. Use CamelCase for mCheckAllAPsEvent, mStopCheckAllApsStatus.
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Giri P Mudusuru <giri.p.mudusuru@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Michael Kinney <michael.d.kinney@intel.com>
Diffstat (limited to 'UefiCpuPkg/Library')
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/DxeMpLib.c | 20 | ||||
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/MpLib.c | 56 | ||||
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/MpLib.h | 21 | ||||
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/PeiMpLib.c | 2 |
4 files changed, 97 insertions, 2 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c b/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c index 785653be8f..988920fc07 100644 --- a/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c @@ -454,5 +454,23 @@ MpInitLibEnableDisableAP ( IN UINT32 *HealthFlag OPTIONAL
)
{
- return EFI_UNSUPPORTED;
+ EFI_STATUS Status;
+ BOOLEAN TempStopCheckState;
+
+ TempStopCheckState = FALSE;
+ //
+ // temporarily stop checkAllAPsStatus for initialize parameters.
+ //
+ if (!mStopCheckAllApsStatus) {
+ mStopCheckAllApsStatus = TRUE;
+ TempStopCheckState = TRUE;
+ }
+
+ Status = EnableDisableApWorker (ProcessorNumber, EnableAP, HealthFlag);
+
+ if (TempStopCheckState) {
+ mStopCheckAllApsStatus = FALSE;
+ }
+
+ return Status;
}
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c b/UefiCpuPkg/Library/MpInitLib/MpLib.c index 8ae08f4d5d..3a266e9607 100644 --- a/UefiCpuPkg/Library/MpInitLib/MpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c @@ -1239,6 +1239,62 @@ SwitchBSPWorker ( }
/**
+ Worker function to let the caller enable or disable an AP from this point onward.
+ This service may only be called from the BSP.
+
+ @param[in] ProcessorNumber The handle number of AP.
+ @param[in] EnableAP Specifies the new state for the processor for
+ enabled, FALSE for disabled.
+ @param[in] HealthFlag If not NULL, a pointer to a value that specifies
+ the new health status of the AP.
+
+ @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.
+ @retval others Failed to Enable/Disable AP.
+
+**/
+EFI_STATUS
+EnableDisableApWorker (
+ IN UINTN ProcessorNumber,
+ IN BOOLEAN EnableAP,
+ IN UINT32 *HealthFlag OPTIONAL
+ )
+{
+ CPU_MP_DATA *CpuMpData;
+ UINTN CallerNumber;
+
+ CpuMpData = GetCpuMpData ();
+
+ //
+ // Check whether caller processor is BSP
+ //
+ MpInitLibWhoAmI (&CallerNumber);
+ if (CallerNumber != CpuMpData->BspNumber) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ if (ProcessorNumber == CpuMpData->BspNumber) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (ProcessorNumber >= CpuMpData->CpuCount) {
+ return EFI_NOT_FOUND;
+ }
+
+ if (!EnableAP) {
+ SetApState (&CpuMpData->CpuData[ProcessorNumber], CpuStateDisabled);
+ } else {
+ SetApState (&CpuMpData->CpuData[ProcessorNumber], CpuStateIdle);
+ }
+
+ if (HealthFlag != NULL) {
+ CpuMpData->CpuData[ProcessorNumber].CpuHealthy =
+ (BOOLEAN) ((*HealthFlag & PROCESSOR_HEALTH_STATUS_BIT) != 0);
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
This return the handle number for the calling processor. This service may be
called from the BSP and APs.
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.h b/UefiCpuPkg/Library/MpInitLib/MpLib.h index bfc7fb72e0..f8b172f414 100644 --- a/UefiCpuPkg/Library/MpInitLib/MpLib.h +++ b/UefiCpuPkg/Library/MpInitLib/MpLib.h @@ -365,6 +365,27 @@ SwitchBSPWorker ( );
/**
+ Worker function to let the caller enable or disable an AP from this point onward.
+ This service may only be called from the BSP.
+
+ @param[in] ProcessorNumber The handle number of AP.
+ @param[in] EnableAP Specifies the new state for the processor for
+ enabled, FALSE for disabled.
+ @param[in] HealthFlag If not NULL, a pointer to a value that specifies
+ the new health status of the AP.
+
+ @retval EFI_SUCCESS The specified AP was enabled or disabled successfully.
+ @retval others Failed to Enable/Disable AP.
+
+**/
+EFI_STATUS
+EnableDisableApWorker (
+ IN UINTN ProcessorNumber,
+ IN BOOLEAN EnableAP,
+ IN UINT32 *HealthFlag OPTIONAL
+ );
+
+/**
Get pointer to CPU MP Data structure from GUIDed HOB.
@return The pointer to CPU MP Data structure.
diff --git a/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c b/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c index cdec0108c5..fe585bdce8 100644 --- a/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c @@ -604,7 +604,7 @@ MpInitLibEnableDisableAP ( IN UINT32 *HealthFlag OPTIONAL
)
{
- return EFI_UNSUPPORTED;
+ return EnableDisableApWorker (ProcessorNumber, EnableAP, HealthFlag);
}
|