test patch for bz2241388

0022-debug-add-logging-try-handle-extended-topology-v2-fa.patch

@@ -0,0 +1,76 @@
+From bb0be5e283a5c995990846b6dad998ba1de235f2 Mon Sep 17 00:00:00 2001
+From: Gerd Hoffmann <kraxel@redhat.com>
+Date: Tue, 10 Oct 2023 12:54:58 +0200
+Subject: [PATCH 22/22] [debug] add logging, try handle extended topology v2
+ failure
+
+https://bugzilla.redhat.com/show_bug.cgi?id=2241388
+---
+ .../Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c  | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+diff --git a/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c b/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c
+index aa4eb11181f6..1867c3e236a8 100644
+--- a/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c
++++ b/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c
+@@ -1264,6 +1264,7 @@ GetProcessorLocationByApicId (
+       *Package = 0;
+     }
+ 
++    DEBUG ((DEBUG_INFO, "%a: no SMP\n", __func__));
+     return;
+   }
+ 
+@@ -1300,6 +1301,7 @@ GetProcessorLocationByApicId (
+     //
+     if (ExtendedTopologyEbx.Uint32 != 0) {
+       TopologyLeafSupported = TRUE;
++      DEBUG ((DEBUG_INFO, "%a: ExtendedTopology, v1\n", __func__));
+ 
+       //
+       // Sub-leaf index 0 (ECX= 0 as input) provides enumeration parameters to extract
+@@ -1351,6 +1353,7 @@ GetProcessorLocationByApicId (
+     //
+     if (StandardSignatureIsAuthenticAMD ()) {
+       if (MaxExtendedCpuIdIndex >= CPUID_AMD_PROCESSOR_TOPOLOGY) {
++        DEBUG ((DEBUG_INFO, "%a: AMD Topology\n", __func__));
+         AsmCpuid (CPUID_EXTENDED_CPU_SIG, NULL, NULL, &AmdExtendedCpuSigEcx.Uint32, NULL);
+         if (AmdExtendedCpuSigEcx.Bits.TopologyExtensions != 0) {
+           //
+@@ -1440,6 +1443,7 @@ GetProcessorLocation2ByApicId (
+   //
+   AsmCpuid (CPUID_SIGNATURE, &MaxStandardCpuIdIndex, NULL, NULL, NULL);
+   if (MaxStandardCpuIdIndex < CPUID_V2_EXTENDED_TOPOLOGY) {
++  fallback_v1:
+     if (Die != NULL) {
+       *Die = 0;
+     }
+@@ -1460,6 +1464,7 @@ GetProcessorLocation2ByApicId (
+   // If the V2 extended topology enumeration leaf is available, it
+   // is the preferred mechanism for enumerating topology.
+   //
++  DEBUG ((DEBUG_INFO, "%a: ExtendedTopology, v2\n", __func__));
+   for (Index = 0; ; Index++) {
+     AsmCpuidEx (
+       CPUID_V2_EXTENDED_TOPOLOGY,
+@@ -1471,10 +1476,17 @@ GetProcessorLocation2ByApicId (
+       );
+ 
+     LevelType = ExtendedTopologyEcx.Bits.LevelType;
++    DEBUG ((DEBUG_INFO, "%a:   %d: type %x, shift %x\n", __func__, Index,
++            ExtendedTopologyEcx.Bits.LevelType,
++            ExtendedTopologyEax.Bits.ApicIdShift));
+ 
+     //
+     // first level reported should be SMT.
+     //
++    if (!((Index != 0) || (LevelType == CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_SMT))) {
++      DEBUG ((DEBUG_INFO, "%a: ASSERT hack\n", __func__));
++      goto fallback_v1;
++    }
+     ASSERT ((Index != 0) || (LevelType == CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_SMT));
+     if (LevelType == CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_INVALID) {
+       break;
+-- 
+2.41.0
+

edk2.spec

@@ -117,6 +117,7 @@ Patch0018: 0018-OvmfPkg-Disable-PcdFirstTimeWakeUpAPsBySipi.patch
 Patch0019: 0019-OvmfPkg-AmdSev-Disable-PcdFirstTimeWakeUpAPsBySipi.patch
 Patch0020: 0020-OvmfPkg-AmdSev-fix-BdsPlatform.c-assertion-failure-d.patch
 Patch0021: 0021-OvmfPkg-set-PcdVariableStoreSize-PcdMaxVolatileVaria.patch
+Patch0022: 0022-debug-add-logging-try-handle-extended-topology-v2-fa.patch
 
 
 # python3-devel and libuuid-devel are required for building tools.