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UefiCpuPkg/PiSmmCpuDxeSmm: TransferApToSafeState() use UINTN params

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Update TransferApToSafeState() use UINTN params to reduce the
number of type casts required in these calls.  Also change
the NumberToFinish parameter from UINT32* to UINTN
NumberToFinishAddress to resolve issues with conversion from
a volatile pointer to a non-volatile pointer.  The assembly
code that receives the NumberToFinishAddress value must treat
that memory location as a volatile to track the number of APs.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Andrew Fish <afish@apple.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
This commit is contained in:
Michael Kinney
2016-11-17 12:41:35 -08:00
parent 0468303899
commit 672b80c8b7
4 changed files with 28 additions and 28 deletions
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8
UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c
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@@ -385,7 +385,7 @@ MPRendezvousProcedure (
CPU_REGISTER_TABLE *RegisterTableList;
UINT32 InitApicId;
UINTN Index;
UINT32 TopOfStack;
UINTN TopOfStack;
UINT8 Stack[128];
ProgramVirtualWireMode ();
@@ -403,10 +403,10 @@ MPRendezvousProcedure (
//
// Place AP into the safe code, count down the number with lock mechanism in the safe code.
//
TopOfStack = (UINT32) (UINTN) Stack + sizeof (Stack);
TopOfStack &= ~(UINT32) (CPU_STACK_ALIGNMENT - 1);
TopOfStack = (UINTN) Stack + sizeof (Stack);
TopOfStack &= ~(UINTN) (CPU_STACK_ALIGNMENT - 1);
CopyMem ((VOID *) (UINTN) mApHltLoopCode, mApHltLoopCodeTemplate, sizeof (mApHltLoopCodeTemplate));
TransferApToSafeState ((UINT32) (UINTN) mApHltLoopCode, TopOfStack, &mNumberToFinish);
TransferApToSafeState ((UINTN)mApHltLoopCode, TopOfStack, (UINTN)&mNumberToFinish);
}
/**