The logic visible in the previous patch should be done at startup as well,
not only when MTRR settings are changed. The inspiration is taken from
Quark_EDKII_v1.1.0/IA32FamilyCpuBasePkg/CpuMpDxe/
(see the EarlyMpInit() function and its call sites in
"ProcessorConfig.c").
Cc: Jeff Fan <jeff....@intel.com>
Cc: Chen Fan <chen.fan.f...@cn.fujitsu.com>
Cc: Jordan Justen <jordan.l.jus...@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <ler...@redhat.com>
---
UefiCpuPkg/CpuDxe/CpuMp.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/UefiCpuPkg/CpuDxe/CpuMp.c b/UefiCpuPkg/CpuDxe/CpuMp.c
index fa0ef37..ee6fd5c 100644
--- a/UefiCpuPkg/CpuDxe/CpuMp.c
+++ b/UefiCpuPkg/CpuDxe/CpuMp.c
@@ -14,6 +14,7 @@
#include "CpuDxe.h"
#include "CpuMp.h"
+#include "MtrrSync.h"
UINTN gMaxLogicalProcessorNumber;
UINTN gApStackSize;
@@ -1551,7 +1552,8 @@ InitializeMpSupport (
VOID
)
{
- EFI_STATUS Status;
+ EFI_STATUS Status;
+ MTRR_SETTINGS MtrrSettings;
gMaxLogicalProcessorNumber = (UINTN) PcdGet32
(PcdCpuMaxLogicalProcessorNumber);
if (gMaxLogicalProcessorNumber < 1) {
@@ -1597,6 +1599,21 @@ InitializeMpSupport (
mAPsAlreadyInitFinished = TRUE;
+ //
+ // Synchronize MTRR settings to APs.
+ //
+ MtrrGetAllMtrrs (&MtrrSettings);
+ Status = mMpServicesTemplate.StartupAllAPs (
+ &mMpServicesTemplate, // This
+ LoadMtrrData, // Procedure
+ TRUE, // SingleThread
+ NULL, // WaitEvent
+ 0, // TimeoutInMicrosecsond
+ &MtrrSettings, // ProcedureArgument
+ NULL // FailedCpuList
+ );
+ ASSERT_EFI_ERROR (Status);
+
Status = gBS->InstallMultipleProtocolInterfaces (
&mMpServiceHandle,
&gEfiMpServiceProtocolGuid, &mMpServicesTemplate,
--
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