From 8f8e4fa3f32e993b7f6feee259d8bd3281c0f067 Mon Sep 17 00:00:00 2001
From: Rebecca Cran <rebecca@bsdio.com>
Date: Tue, 28 Mar 2023 11:30:59 -0600
Subject: [PATCH] OvmfPkg: Replace static struct initialization with ZeroMem
call
Replace the static struct initialization with a call to ZeroMem to avoid
generating a call to memset in certain build configurations.
Signed-off-by: Rebecca Cran <rebecca@bsdio.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oliver Smith-Denny <osd@smith-denny.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
---
OvmfPkg/Library/PlatformInitLib/MemDetect.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/OvmfPkg/Library/PlatformInitLib/MemDetect.c b/OvmfPkg/Library/PlatformInitLib/MemDetect.c
index f85a63ac51..aced8535e6 100644
--- a/OvmfPkg/Library/PlatformInitLib/MemDetect.c
+++ b/OvmfPkg/Library/PlatformInitLib/MemDetect.c
@@ -595,10 +595,12 @@ PlatformAddressWidthFromCpuid (
{
UINT32 RegEax, RegEbx, RegEcx, RegEdx, Max;
UINT8 PhysBits;
- CHAR8 Signature[13] = { 0 };
+ CHAR8 Signature[13];
BOOLEAN Valid = FALSE;
BOOLEAN Page1GSupport = FALSE;
+ ZeroMem (Signature, sizeof (Signature));
+
AsmCpuid (0x80000000, &RegEax, &RegEbx, &RegEcx, &RegEdx);
*(UINT32 *)(Signature + 0) = RegEbx;
*(UINT32 *)(Signature + 4) = RegEdx;