From: Ray Ni <ray.ni@intel.com>
Date: Fri, 29 Mar 2019 08:40:09 +0000 (+0800)
Subject: UefiCpuPkg/Cpuid: Dump leaf 1FH information correctly
X-Git-Tag: edk2-stable201905~372
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=079141ebe7f1bf5f85a0c7f1c43f77c44844b1bd

UefiCpuPkg/Cpuid: Dump leaf 1FH information correctly

Leaf 1FH is very similar to leaf 0BH. Both return the CPU topology
information.
Leaf 0BH returns 3-level (Package/Core/Thread) CPU topology info.
Leaf 1FH returns 6-level (Package/Die/Tile/Module/Core/Thread) CPU
topology info.
The logic to enumerate the topology info is the same.

But today's logic to handle 1FH is completely wrong.
The patch combines them together to fix the 1FH issue.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Zhiqiang Qin <zhiqiang.qin@intel.com>
---

diff --git a/UefiCpuPkg/Application/Cpuid/Cpuid.c b/UefiCpuPkg/Application/Cpuid/Cpuid.c
index d229ac8e7b..30d43e9631 100644
--- a/UefiCpuPkg/Application/Cpuid/Cpuid.c
+++ b/UefiCpuPkg/Application/Cpuid/Cpuid.c
@@ -717,7 +717,7 @@ CpuidArchitecturalPerformanceMonitoring (
 **/
 VOID
 CpuidExtendedTopology (
-  VOID
+  UINT32                       LeafFunction
   )
 {
   CPUID_EXTENDED_TOPOLOGY_EAX  Eax;
@@ -726,27 +726,34 @@ CpuidExtendedTopology (
   UINT32                       Edx;
   UINT32                       LevelNumber;
 
-  if (CPUID_EXTENDED_TOPOLOGY > gMaximumBasicFunction) {
+  if (LeafFunction > gMaximumBasicFunction) {
+    return;
+  }
+  if ((LeafFunction != CPUID_EXTENDED_TOPOLOGY) && (LeafFunction != CPUID_V2_EXTENDED_TOPOLOGY)) {
     return;
   }
 
   LevelNumber = 0;
-  do {
+  for (LevelNumber = 0; ; LevelNumber++) {
     AsmCpuidEx (
-      CPUID_EXTENDED_TOPOLOGY, LevelNumber,
+      LeafFunction, LevelNumber,
       &Eax.Uint32, &Ebx.Uint32, &Ecx.Uint32, &Edx
       );
-    if (Eax.Bits.ApicIdShift != 0) {
-      Print (L"CPUID_EXTENDED_TOPOLOGY (Leaf %08x, Sub-Leaf %08x)\n", CPUID_EXTENDED_TOPOLOGY, LevelNumber);
-      Print (L"  EAX:%08x  EBX:%08x  ECX:%08x  EDX:%08x\n", Eax.Uint32, Ebx.Uint32, Ecx.Uint32, Edx);
-      PRINT_BIT_FIELD (Eax, ApicIdShift);
-      PRINT_BIT_FIELD (Ebx, LogicalProcessors);
-      PRINT_BIT_FIELD (Ecx, LevelNumber);
-      PRINT_BIT_FIELD (Ecx, LevelType);
-      PRINT_VALUE     (Edx, x2APIC_ID);
+    if (Ecx.Bits.LevelType == CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_INVALID) {
+      break;
     }
-    LevelNumber++;
-  } while (Eax.Bits.ApicIdShift != 0);
+    Print (
+      L"%a (Leaf %08x, Sub-Leaf %08x)\n",
+      LeafFunction == CPUID_EXTENDED_TOPOLOGY ? "CPUID_EXTENDED_TOPOLOGY" : "CPUID_V2_EXTENDED_TOPOLOGY",
+      LeafFunction, LevelNumber
+      );
+    Print (L"  EAX:%08x  EBX:%08x  ECX:%08x  EDX:%08x\n", Eax.Uint32, Ebx.Uint32, Ecx.Uint32, Edx);
+    PRINT_BIT_FIELD (Eax, ApicIdShift);
+    PRINT_BIT_FIELD (Ebx, LogicalProcessors);
+    PRINT_BIT_FIELD (Ecx, LevelNumber);
+    PRINT_BIT_FIELD (Ecx, LevelType);
+    PRINT_VALUE     (Edx, x2APIC_ID);
+  }
 }
 
 /**
@@ -1385,39 +1392,6 @@ CpuidDeterministicAddressTranslationParameters (
   PRINT_BIT_FIELD (Edx, MaximumNum);
 }
 
-/**
-  Display CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION main leaf and sub-leafs.
-
-**/
-VOID
-CpuidV2ExtendedTopologyEnumeration (
-  VOID
-  )
-{
-  CPUID_EXTENDED_TOPOLOGY_EAX  Eax;
-  CPUID_EXTENDED_TOPOLOGY_EBX  Ebx;
-  CPUID_EXTENDED_TOPOLOGY_ECX  Ecx;
-  UINT32                       Edx;
-
-  if (CPUID_V2_EXTENDED_TOPOLOGY > gMaximumBasicFunction) {
-    return;
-  }
-
-  AsmCpuidEx (
-    CPUID_V2_EXTENDED_TOPOLOGY,
-    0,
-    &Eax.Uint32, &Ebx.Uint32, &Ecx.Uint32, &Edx
-    );
-  Print (L"CPUID_V2_EXTENDED_TOPOLOGY (Leaf %08x, Sub-Leaf %08x)\n", CPUID_V2_EXTENDED_TOPOLOGY, 0);
-  Print (L"  EAX:%08x  EBX:%08x  ECX:%08x  EDX:%08x\n", Eax.Uint32, Ebx.Uint32, Ecx.Uint32, Edx);
-
-  PRINT_BIT_FIELD (Eax, ApicIdShift);
-  PRINT_BIT_FIELD (Ebx, LogicalProcessors);
-  PRINT_BIT_FIELD (Ecx, LevelNumber);
-  PRINT_BIT_FIELD (Ecx, LevelType);
-  PRINT_VALUE     (Edx, x2APICID);
-}
-
 /**
   Display CPUID_EXTENDED_FUNCTION leaf.
 
@@ -1619,7 +1593,7 @@ UefiMain (
   CpuidStructuredExtendedFeatureFlags ();
   CpuidDirectCacheAccessInfo();
   CpuidArchitecturalPerformanceMonitoring ();
-  CpuidExtendedTopology ();
+  CpuidExtendedTopology (CPUID_EXTENDED_TOPOLOGY);
   CpuidExtendedStateMainLeaf ();
   CpuidIntelRdtMonitoringEnumerationSubLeaf ();
   CpuidIntelRdtMonitoringL3CacheCapabilitySubLeaf ();
@@ -1630,7 +1604,7 @@ UefiMain (
   CpuidProcessorFrequency ();
   CpuidSocVendor ();
   CpuidDeterministicAddressTranslationParameters ();
-  CpuidV2ExtendedTopologyEnumeration ();
+  CpuidExtendedTopology (CPUID_V2_EXTENDED_TOPOLOGY);
   CpuidExtendedFunction ();
   CpuidExtendedCpuSig ();
   CpuidProcessorBrandString ();