diff options
| -rw-r--r-- | SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c b/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c index 56a5e1a170..f7fbb3ccfa 100644 --- a/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c +++ b/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c @@ -365,9 +365,19 @@ InitializeDebugAgent ( IA32_DESCRIPTOR IdtDescriptor;
IA32_DESCRIPTOR *Ia32Idtr;
IA32_IDT_ENTRY *Ia32IdtEntry;
+ BOOLEAN PeriodicMode;
+ UINTN TimerCycle;
if (InitFlag == DEBUG_AGENT_INIT_DXE_AP) {
//
+ // Check if CPU APIC Timer is working, otherwise initialize it.
+ //
+ GetApicTimerState (NULL, &PeriodicMode, NULL);
+ TimerCycle = GetApicTimerInitCount ();
+ if (!PeriodicMode || TimerCycle == 0) {
+ InitializeDebugTimer (NULL, FALSE);
+ }
+ //
// Invoked by AP, enable interrupt to let AP could receive IPI from other processors
//
EnableInterrupts ();
|