coreboot-mirror
/
STM
mirror of https://review.coreboot.org/STM.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Make sure that the processor state is always captured

This commit is contained in:
Eugene D Myers 2020-05-04 15:25:51 -04:00
parent 801195c81b
commit 5193b517da
1 changed files with 24 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
Stm/StmPkg/Core/Runtime/PeSmiHandler.c
View File

@ -114,37 +114,6 @@ UINT32 PeSmiHandler(UINT32 CpuIndex)
//sizeof(*NumProcessors) + sizeof(*NumProcessors));
RootState = (ROOT_VMX_STATE *) ((char *)NumProcessors + 64);
// get the local processor state
GetRootVmxState(CpuIndex, &RootState[CpuIndex]);
// we set to one to indicate we are not there
InterlockedCompareExchange32(&retvalue, 0, 1);
// the VM/PE Cpu cleans up and runs
InterlockedCompareExchange32(&PeSmiControl.PeWaitTimer, 1, 0);
StopSwTimer();
retvalue = 1;
// start the VM/PE
PeVmData[PeType].StartMode = PEVM_PRESTART_SMI; // starting from SMI
CpuReadySync(CpuIndex); // sync everyone ud
SetEndOfSmi(); // make sure that the timer SMI has been cleared
for(CpuNum = 0; CpuNum < mHostContextCommon.CpuNum; CpuNum++)
{
PrintVmxState(CpuNum, &RootState[CpuNum]);
}
if( mHostContextCommon.StmShutdown == 1)
{
// time to quit
StmTeardown(CpuIndex);
}
RunPermVM(CpuIndex);
return retvalue;
}
}
}
@ -160,6 +129,30 @@ UINT32 PeSmiHandler(UINT32 CpuIndex)
GetRootVmxState(CpuIndex, &RootState[CpuIndex]);
retvalue = 1;
CpuReadySync(CpuIndex);
if (PeSmiControl.PeCpuIndex == (INT32)CpuIndex)
{
InterlockedCompareExchange32(&PeSmiControl.PeWaitTimer, 1, 0);
StopSwTimer();
// start the VM/PE
PeVmData[PeType].StartMode = PEVM_PRESTART_SMI; // starting from SMI
SetEndOfSmi(); // make sure that the timer SMI has been cleared
for(CpuNum = 0; CpuNum < mHostContextCommon.CpuNum; CpuNum++)
{
PrintVmxState(CpuNum, &RootState[CpuNum]);
}
if( mHostContextCommon.StmShutdown == 1)
{
// time to quit
StmTeardown(CpuIndex);
}
RunPermVM(CpuIndex);
}
// we do not reset the state here as the VM/PE will be processing
// when it competes it should end with a PeSmiState pf PESMIPNMI (waiting for NMI)