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| author | Eric Dong <eric.dong@intel.com> | 2019-04-10 11:00:43 +0800 |
|---|---|---|
| committer | Eric Dong <eric.dong@intel.com> | 2019-07-29 09:25:20 +0800 |
| commit | ee0c39fa110f80aa8c185d0b0805223e2af3b659 (patch) | |
| tree | 403e0e8ed09bc970dae9c8fd041e9cc1341da980 /UefiCpuPkg/Library/MpInitLib/MpLib.c | |
| parent | 92b5a2eabc63298012630d523baa88cb5271babc (diff) | |
| download | edk2-ee0c39fa110f80aa8c185d0b0805223e2af3b659.tar.gz edk2-ee0c39fa110f80aa8c185d0b0805223e2af3b659.tar.bz2 edk2-ee0c39fa110f80aa8c185d0b0805223e2af3b659.zip | |
UefiCpuPkg/MpInitLib: Add MpInitLibStartupAllCPUs API.
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1973
Add new MpInitLibStartupAllCPUs API uses to start all processors
at the same time.
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Chandana Kumar <chandana.c.kumar@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'UefiCpuPkg/Library/MpInitLib/MpLib.c')
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/MpLib.c | 61 |
1 files changed, 57 insertions, 4 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c b/UefiCpuPkg/Library/MpInitLib/MpLib.c index 6f51bc4ebf..572495ec36 100644 --- a/UefiCpuPkg/Library/MpInitLib/MpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c @@ -2130,6 +2130,7 @@ MpInitLibGetNumberOfProcessors ( number. If FALSE, then all the enabled APs
execute the function specified by Procedure
simultaneously.
+ @param[in] ExcludeBsp Whether let BSP also trig this task.
@param[in] WaitEvent The event created by the caller with CreateEvent()
service.
@param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for
@@ -2151,9 +2152,10 @@ MpInitLibGetNumberOfProcessors ( **/
EFI_STATUS
-StartupAllAPsWorker (
+StartupAllCPUsWorker (
IN EFI_AP_PROCEDURE Procedure,
IN BOOLEAN SingleThread,
+ IN BOOLEAN ExcludeBsp,
IN EFI_EVENT WaitEvent OPTIONAL,
IN UINTN TimeoutInMicroseconds,
IN VOID *ProcedureArgument OPTIONAL,
@@ -2175,7 +2177,7 @@ StartupAllAPsWorker ( *FailedCpuList = NULL;
}
- if (CpuMpData->CpuCount == 1) {
+ if (CpuMpData->CpuCount == 1 && ExcludeBsp) {
return EFI_NOT_STARTED;
}
@@ -2218,9 +2220,9 @@ StartupAllAPsWorker ( }
}
- if (!HasEnabledAp) {
+ if (!HasEnabledAp && ExcludeBsp) {
//
- // If no enabled AP exists, return EFI_NOT_STARTED.
+ // If no enabled AP exists and not include Bsp to do the procedure, return EFI_NOT_STARTED.
//
return EFI_NOT_STARTED;
}
@@ -2266,6 +2268,13 @@ StartupAllAPsWorker ( }
}
+ if (!ExcludeBsp) {
+ //
+ // Start BSP.
+ //
+ Procedure (ProcedureArgument);
+ }
+
Status = EFI_SUCCESS;
if (WaitEvent == NULL) {
do {
@@ -2411,3 +2420,47 @@ GetCpuMpDataFromGuidedHob ( return CpuMpData;
}
+/**
+ This service executes a caller provided function on all enabled CPUs.
+
+ @param[in] Procedure A pointer to the function to be run on
+ enabled APs of the system. See type
+ EFI_AP_PROCEDURE.
+ @param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for
+ APs to return from Procedure, either for
+ blocking or non-blocking mode. Zero means
+ infinity. TimeoutInMicroseconds is ignored
+ for BSP.
+ @param[in] ProcedureArgument The parameter passed into Procedure for
+ all APs.
+
+ @retval EFI_SUCCESS In blocking mode, all CPUs have finished before
+ the timeout expired.
+ @retval EFI_SUCCESS In non-blocking mode, function has been dispatched
+ to all enabled CPUs.
+ @retval EFI_DEVICE_ERROR Caller processor is AP.
+ @retval EFI_NOT_READY Any enabled APs are busy.
+ @retval EFI_NOT_READY MP Initialize Library is not initialized.
+ @retval EFI_TIMEOUT In blocking mode, the timeout expired before
+ all enabled APs have finished.
+ @retval EFI_INVALID_PARAMETER Procedure is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+MpInitLibStartupAllCPUs (
+ IN EFI_AP_PROCEDURE Procedure,
+ IN UINTN TimeoutInMicroseconds,
+ IN VOID *ProcedureArgument OPTIONAL
+ )
+{
+ return StartupAllCPUsWorker (
+ Procedure,
+ FALSE,
+ FALSE,
+ NULL,
+ TimeoutInMicroseconds,
+ ProcedureArgument,
+ NULL
+ );
+}
|