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-rw-r--r--UefiCpuPkg/CpuMpPei/CpuMpPei.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.h b/UefiCpuPkg/CpuMpPei/CpuMpPei.h
index a22bae7005..47038c2825 100644
--- a/UefiCpuPkg/CpuMpPei/CpuMpPei.h
+++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.h
@@ -38,6 +38,7 @@
#include <Library/SynchronizationLib.h>
#include <Library/TimerLib.h>
#include <Library/UefiCpuLib.h>
+#include <Library/CpuLib.h>
#include "Microcode.h"
@@ -50,6 +51,8 @@ typedef enum {
CpuStateDisabled
} CPU_STATE;
+#define WAKEUP_AP_SIGNAL SIGNATURE_32 ('S', 'T', 'A', 'P')
+
typedef enum {
ApInHltLoop = 1,
ApInMwaitLoop = 2,