Use CpuPause() to allow the CPU to go into a lower power state
state while we spin wait.
Cc: Liming Gao <gaolim...@byosoft.com.cn>
Signed-off-by: Ankur Arora <ankur.a.ar...@oracle.com>
Reviewed-by: Michael D Kinney <michael.d.kin...@intel.com>
---
MdePkg/Library/BaseLib/CpuDeadLoop.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/MdePkg/Library/BaseLib/CpuDeadLoop.c
b/MdePkg/Library/BaseLib/CpuDeadLoop.c
index 9e110cacbc96..3cd304351a65 100644
--- a/MdePkg/Library/BaseLib/CpuDeadLoop.c
+++ b/MdePkg/Library/BaseLib/CpuDeadLoop.c
@@ -28,5 +28,7 @@ CpuDeadLoop (
{
volatile UINTN Index;
- for (Index = 0; Index == 0;);
+ for (Index = 0; Index == 0;) {
+ CpuPause();
+ }
}
--
2.9.3
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