X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=UefiCpuPkg%2FLibrary%2FCpuCommonFeaturesLib%2FAesni.c;fp=UefiCpuPkg%2FLibrary%2FCpuCommonFeaturesLib%2FAesni.c;h=56b1b551d9778f54e3ff86b0ba3f77f61299bb47;hp=880f0922ab6116cad0701d898b138c685c8a46e1;hb=9d02c34f0465295e200c866754340772a2b55d93;hpb=a1d1422dd47ced228b0aad541a8bdfcaaeaa807a

diff --git a/UefiCpuPkg/Library/CpuCommonFeaturesLib/Aesni.c b/UefiCpuPkg/Library/CpuCommonFeaturesLib/Aesni.c
index 880f0922ab..56b1b551d9 100644
--- a/UefiCpuPkg/Library/CpuCommonFeaturesLib/Aesni.c
+++ b/UefiCpuPkg/Library/CpuCommonFeaturesLib/Aesni.c
@@ -62,15 +62,17 @@ AesniSupport (
 {
   MSR_SANDY_BRIDGE_FEATURE_CONFIG_REGISTER   *MsrFeatureConfig;
 
-  if (IS_SANDY_BRIDGE_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
-      IS_SILVERMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
-      IS_XEON_5600_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
-      IS_XEON_E7_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
-      IS_XEON_PHI_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {
-    MsrFeatureConfig = (MSR_SANDY_BRIDGE_FEATURE_CONFIG_REGISTER *) ConfigData;
-    ASSERT (MsrFeatureConfig != NULL);
-    MsrFeatureConfig[ProcessorNumber].Uint64 = AsmReadMsr64 (MSR_SANDY_BRIDGE_FEATURE_CONFIG);
-    return (CpuInfo->CpuIdVersionInfoEcx.Bits.AESNI == 1);
+  if (CpuInfo->CpuIdVersionInfoEcx.Bits.AESNI == 1) {
+    if (IS_SANDY_BRIDGE_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
+        IS_SILVERMONT_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
+        IS_XEON_5600_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
+        IS_XEON_E7_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel) ||
+        IS_XEON_PHI_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel)) {
+      MsrFeatureConfig = (MSR_SANDY_BRIDGE_FEATURE_CONFIG_REGISTER *) ConfigData;
+      ASSERT (MsrFeatureConfig != NULL);
+      MsrFeatureConfig[ProcessorNumber].Uint64 = AsmReadMsr64 (MSR_SANDY_BRIDGE_FEATURE_CONFIG);
+    }
+    return TRUE;
   }
   return FALSE;
 }