diff options
Diffstat (limited to 'UefiCpuPkg/CpuDxe/CpuMp.c')
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuMp.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuDxe/CpuMp.c b/UefiCpuPkg/CpuDxe/CpuMp.c index f3a5a24b0f..04c2f1f0ac 100644 --- a/UefiCpuPkg/CpuDxe/CpuMp.c +++ b/UefiCpuPkg/CpuDxe/CpuMp.c @@ -1667,6 +1667,22 @@ ExitBootServicesCallback ( }
/**
+ A minimal wrapper function that allows MtrrSetAllMtrrs() to be passed to
+ EFI_MP_SERVICES_PROTOCOL.StartupAllAPs() as Procedure.
+
+ @param[in] Buffer Pointer to an MTRR_SETTINGS object, to be passed to
+ MtrrSetAllMtrrs().
+**/
+VOID
+EFIAPI
+SetMtrrsFromBuffer (
+ IN VOID *Buffer
+ )
+{
+ MtrrSetAllMtrrs (Buffer);
+}
+
+/**
Initialize Multi-processor support.
**/
@@ -1676,6 +1692,7 @@ InitializeMpSupport ( )
{
EFI_STATUS Status;
+ MTRR_SETTINGS MtrrSettings;
UINTN Timeout;
gMaxLogicalProcessorNumber = (UINTN) PcdGet32 (PcdCpuMaxLogicalProcessorNumber);
@@ -1748,6 +1765,21 @@ InitializeMpSupport ( //
CollectBistDataFromHob ();
+ //
+ // Synchronize MTRR settings to APs.
+ //
+ MtrrGetAllMtrrs (&MtrrSettings);
+ Status = mMpServicesTemplate.StartupAllAPs (
+ &mMpServicesTemplate, // This
+ SetMtrrsFromBuffer, // Procedure
+ TRUE, // SingleThread
+ NULL, // WaitEvent
+ 0, // TimeoutInMicrosecsond
+ &MtrrSettings, // ProcedureArgument
+ NULL // FailedCpuList
+ );
+ ASSERT (Status == EFI_SUCCESS || Status == EFI_NOT_STARTED);
+
Status = gBS->InstallMultipleProtocolInterfaces (
&mMpServiceHandle,
&gEfiMpServiceProtocolGuid, &mMpServicesTemplate,
|