* [PATCH] UefiCpuPkg/Cpuid: Dump leaf 1FH information correctly
@ 2019-03-29 8:41 Ray Ni
2019-04-03 6:39 ` Dong, Eric
0 siblings, 1 reply; 3+ messages in thread
From: Ray Ni @ 2019-03-29 8:41 UTC (permalink / raw)
To: edk2-devel; +Cc: Eric Dong
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>
Cc: Eric Dong <eric.dong@intel.com>
---
UefiCpuPkg/Application/Cpuid/Cpuid.c | 83 ++++++++++------------------
1 file changed, 28 insertions(+), 55 deletions(-)
diff --git a/UefiCpuPkg/Application/Cpuid/Cpuid.c b/UefiCpuPkg/Application/Cpuid/Cpuid.c
index 67cacf2714..3d242a0cbf 100644
--- a/UefiCpuPkg/Application/Cpuid/Cpuid.c
+++ b/UefiCpuPkg/Application/Cpuid/Cpuid.c
@@ -1,7 +1,7 @@
/** @file
UEFI Application to display CPUID leaf information.
- Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2016 - 2019, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -717,36 +717,42 @@ CpuidArchitecturalPerformanceMonitoring (
**/
VOID
CpuidExtendedTopology (
- VOID
+ UINT32 LeafFunction
)
{
- CPUID_EXTENDED_TOPOLOGY_EAX Eax;
- CPUID_EXTENDED_TOPOLOGY_EBX Ebx;
- CPUID_EXTENDED_TOPOLOGY_ECX Ecx;
- UINT32 Edx;
- UINT32 LevelNumber;
+ CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EAX Eax;
+ CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EBX Ebx;
+ CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_ECX Ecx;
+ UINT32 Edx;
+ UINT32 LevelNumber;
- if (CPUID_EXTENDED_TOPOLOGY > gMaximumBasicFunction) {
+ if (LeafFunction > gMaximumBasicFunction) {
+ return;
+ }
+ if ((LeafFunction != CPUID_EXTENDED_TOPOLOGY) && (LeafFunction != CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION)) {
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_V2_EXTENDED_TOPOLOGY_ENUMERATION_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_ENUMERATION-2",
+ LeafFunction, LevelNumber);
+ Print (L" EAX:%08x EBX:%08x ECX:%08x EDX:%08x\n", Eax.Uint32, Ebx.Uint32, Ecx.Uint32, Edx);
+ PRINT_BIT_FIELD (Eax, BitsNum);
+ PRINT_BIT_FIELD (Ebx, ProcessorsNum);
+ PRINT_BIT_FIELD (Ecx, LevelNum);
+ PRINT_BIT_FIELD (Ecx, LevelType);
+ PRINT_VALUE (Edx, x2APIC_ID);
+ }
}
/**
@@ -1385,39 +1391,6 @@ CpuidDeterministicAddressTranslationParameters (
PRINT_BIT_FIELD (Edx, MaximumNum);
}
-/**
- Display CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION main leaf and sub-leafs.
-
-**/
-VOID
-CpuidV2ExtendedTopologyEnumeration (
- VOID
- )
-{
- CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EAX Eax;
- CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EBX Ebx;
- CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_ECX Ecx;
- UINT32 Edx;
-
- if (CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION > gMaximumBasicFunction) {
- return;
- }
-
- AsmCpuidEx (
- CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION,
- CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_MAIN_LEAF,
- &Eax.Uint32, &Ebx.Uint32, &Ecx.Uint32, &Edx
- );
- Print (L"CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION (Leaf %08x, Sub-Leaf %08x)\n", CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION, CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_MAIN_LEAF);
- Print (L" EAX:%08x EBX:%08x ECX:%08x EDX:%08x\n", Eax.Uint32, Ebx.Uint32, Ecx.Uint32, Edx);
-
- PRINT_BIT_FIELD (Eax, BitsNum);
- PRINT_BIT_FIELD (Ebx, ProcessorsNum);
- PRINT_BIT_FIELD (Ecx, LevelNum);
- PRINT_BIT_FIELD (Ecx, LevelType);
- PRINT_VALUE (Edx, x2APICID);
-}
-
/**
Display CPUID_EXTENDED_FUNCTION leaf.
@@ -1619,7 +1592,7 @@ UefiMain (
CpuidStructuredExtendedFeatureFlags ();
CpuidDirectCacheAccessInfo();
CpuidArchitecturalPerformanceMonitoring ();
- CpuidExtendedTopology ();
+ CpuidExtendedTopology (CPUID_EXTENDED_TOPOLOGY);
CpuidExtendedStateMainLeaf ();
CpuidIntelRdtMonitoringEnumerationSubLeaf ();
CpuidIntelRdtMonitoringL3CacheCapabilitySubLeaf ();
@@ -1630,7 +1603,7 @@ UefiMain (
CpuidProcessorFrequency ();
CpuidSocVendor ();
CpuidDeterministicAddressTranslationParameters ();
- CpuidV2ExtendedTopologyEnumeration ();
+ CpuidExtendedTopology (CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION);
CpuidExtendedFunction ();
CpuidExtendedCpuSig ();
CpuidProcessorBrandString ();
--
2.21.0.windows.1
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] UefiCpuPkg/Cpuid: Dump leaf 1FH information correctly
2019-03-29 8:41 [PATCH] UefiCpuPkg/Cpuid: Dump leaf 1FH information correctly Ray Ni
@ 2019-04-03 6:39 ` Dong, Eric
2019-04-03 8:09 ` Ni, Ray
0 siblings, 1 reply; 3+ messages in thread
From: Dong, Eric @ 2019-04-03 6:39 UTC (permalink / raw)
To: Ni, Ray, edk2-devel@lists.01.org
Hi Ray,
> -----Original Message-----
> From: Ni, Ray
> Sent: Friday, March 29, 2019 4:42 PM
> To: edk2-devel@lists.01.org
> Cc: Dong, Eric <eric.dong@intel.com>
> Subject: [PATCH] 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>
> Cc: Eric Dong <eric.dong@intel.com>
> ---
> UefiCpuPkg/Application/Cpuid/Cpuid.c | 83 ++++++++++------------------
> 1 file changed, 28 insertions(+), 55 deletions(-)
>
> diff --git a/UefiCpuPkg/Application/Cpuid/Cpuid.c
> b/UefiCpuPkg/Application/Cpuid/Cpuid.c
> index 67cacf2714..3d242a0cbf 100644
> --- a/UefiCpuPkg/Application/Cpuid/Cpuid.c
> +++ b/UefiCpuPkg/Application/Cpuid/Cpuid.c
> @@ -1,7 +1,7 @@
> /** @file
> UEFI Application to display CPUID leaf information.
>
> - Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>
> + Copyright (c) 2016 - 2019, Intel Corporation. All rights
> + reserved.<BR>
> This program and the accompanying materials
> are licensed and made available under the terms and conditions of the BSD
> License
> which accompanies this distribution. The full text of the license may be
> found at @@ -717,36 +717,42 @@
> CpuidArchitecturalPerformanceMonitoring ( **/ VOID
> CpuidExtendedTopology (
> - VOID
> + UINT32 LeafFunction
> )
> {
> - CPUID_EXTENDED_TOPOLOGY_EAX Eax;
> - CPUID_EXTENDED_TOPOLOGY_EBX Ebx;
> - CPUID_EXTENDED_TOPOLOGY_ECX Ecx;
> - UINT32 Edx;
> - UINT32 LevelNumber;
> + CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EAX Eax;
> + CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EBX Ebx;
> + CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_ECX Ecx;
> + UINT32 Edx;
> + UINT32 LevelNumber;
>
> - if (CPUID_EXTENDED_TOPOLOGY > gMaximumBasicFunction) {
> + if (LeafFunction > gMaximumBasicFunction) {
> + return;
> + }
> + if ((LeafFunction != CPUID_EXTENDED_TOPOLOGY) && (LeafFunction !=
> + CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION)) {
> 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_V2_EXTENDED_TOPOLOGY_ENUMERATION_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_ENUMERATION-2",
> + LeafFunction, LevelNumber);
> + Print (L" EAX:%08x EBX:%08x ECX:%08x EDX:%08x\n", Eax.Uint32,
> Ebx.Uint32, Ecx.Uint32, Edx);
> + PRINT_BIT_FIELD (Eax, BitsNum);
> + PRINT_BIT_FIELD (Ebx, ProcessorsNum);
> + PRINT_BIT_FIELD (Ecx, LevelNum);
> + PRINT_BIT_FIELD (Ecx, LevelType);
> + PRINT_VALUE (Edx, x2APIC_ID);
The name for above fields are different in CPUID_EXTENDED_TOPOLOGY and CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION,
So I think above print are not correct for CPUID_EXTENDED_TOPOLOGY, right?
Thanks,
Eric
> + }
> }
>
> /**
> @@ -1385,39 +1391,6 @@ CpuidDeterministicAddressTranslationParameters
> (
> PRINT_BIT_FIELD (Edx, MaximumNum);
> }
>
> -/**
> - Display CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION main leaf and
> sub-leafs.
> -
> -**/
> -VOID
> -CpuidV2ExtendedTopologyEnumeration (
> - VOID
> - )
> -{
> - CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EAX Eax;
> - CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EBX Ebx;
> - CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_ECX Ecx;
> - UINT32 Edx;
> -
> - if (CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION >
> gMaximumBasicFunction) {
> - return;
> - }
> -
> - AsmCpuidEx (
> - CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION,
> - CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_MAIN_LEAF,
> - &Eax.Uint32, &Ebx.Uint32, &Ecx.Uint32, &Edx
> - );
> - Print (L"CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION (Leaf %08x,
> Sub-Leaf %08x)\n", CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION,
> CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_MAIN_LEAF);
> - Print (L" EAX:%08x EBX:%08x ECX:%08x EDX:%08x\n", Eax.Uint32,
> Ebx.Uint32, Ecx.Uint32, Edx);
> -
> - PRINT_BIT_FIELD (Eax, BitsNum);
> - PRINT_BIT_FIELD (Ebx, ProcessorsNum);
> - PRINT_BIT_FIELD (Ecx, LevelNum);
> - PRINT_BIT_FIELD (Ecx, LevelType);
> - PRINT_VALUE (Edx, x2APICID);
> -}
> -
> /**
> Display CPUID_EXTENDED_FUNCTION leaf.
>
> @@ -1619,7 +1592,7 @@ UefiMain (
> CpuidStructuredExtendedFeatureFlags ();
> CpuidDirectCacheAccessInfo();
> CpuidArchitecturalPerformanceMonitoring ();
> - CpuidExtendedTopology ();
> + CpuidExtendedTopology (CPUID_EXTENDED_TOPOLOGY);
> CpuidExtendedStateMainLeaf ();
> CpuidIntelRdtMonitoringEnumerationSubLeaf ();
> CpuidIntelRdtMonitoringL3CacheCapabilitySubLeaf (); @@ -1630,7 +1603,7
> @@ UefiMain (
> CpuidProcessorFrequency ();
> CpuidSocVendor ();
> CpuidDeterministicAddressTranslationParameters ();
> - CpuidV2ExtendedTopologyEnumeration ();
> + CpuidExtendedTopology
> (CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION);
> CpuidExtendedFunction ();
> CpuidExtendedCpuSig ();
> CpuidProcessorBrandString ();
> --
> 2.21.0.windows.1
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] UefiCpuPkg/Cpuid: Dump leaf 1FH information correctly
2019-04-03 6:39 ` Dong, Eric
@ 2019-04-03 8:09 ` Ni, Ray
0 siblings, 0 replies; 3+ messages in thread
From: Ni, Ray @ 2019-04-03 8:09 UTC (permalink / raw)
To: Dong, Eric, edk2-devel@lists.01.org
> -----Original Message-----
> From: Dong, Eric <eric.dong@intel.com>
> Sent: Wednesday, April 3, 2019 2:40 PM
> To: Ni, Ray <ray.ni@intel.com>; edk2-devel@lists.01.org
> Subject: RE: [PATCH] UefiCpuPkg/Cpuid: Dump leaf 1FH information correctly
>
> Hi Ray,
>
> > -----Original Message-----
> > From: Ni, Ray
> > Sent: Friday, March 29, 2019 4:42 PM
> > To: edk2-devel@lists.01.org
> > Cc: Dong, Eric <eric.dong@intel.com>
> > Subject: [PATCH] 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>
> > Cc: Eric Dong <eric.dong@intel.com>
> > ---
> > UefiCpuPkg/Application/Cpuid/Cpuid.c | 83
> > ++++++++++------------------
> > 1 file changed, 28 insertions(+), 55 deletions(-)
> >
> > diff --git a/UefiCpuPkg/Application/Cpuid/Cpuid.c
> > b/UefiCpuPkg/Application/Cpuid/Cpuid.c
> > index 67cacf2714..3d242a0cbf 100644
> > --- a/UefiCpuPkg/Application/Cpuid/Cpuid.c
> > +++ b/UefiCpuPkg/Application/Cpuid/Cpuid.c
> > @@ -1,7 +1,7 @@
> > /** @file
> > UEFI Application to display CPUID leaf information.
> >
> > - Copyright (c) 2016 - 2018, Intel Corporation. All rights
> > reserved.<BR>
> > + Copyright (c) 2016 - 2019, Intel Corporation. All rights
> > + reserved.<BR>
> > This program and the accompanying materials
> > are licensed and made available under the terms and conditions of
> > the BSD License
> > which accompanies this distribution. The full text of the license
> > may be found at @@ -717,36 +717,42 @@
> > CpuidArchitecturalPerformanceMonitoring ( **/ VOID
> > CpuidExtendedTopology (
> > - VOID
> > + UINT32 LeafFunction
> > )
> > {
> > - CPUID_EXTENDED_TOPOLOGY_EAX Eax;
> > - CPUID_EXTENDED_TOPOLOGY_EBX Ebx;
> > - CPUID_EXTENDED_TOPOLOGY_ECX Ecx;
> > - UINT32 Edx;
> > - UINT32 LevelNumber;
> > + CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EAX Eax;
> > + CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EBX Ebx;
> > + CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_ECX Ecx;
> > + UINT32 Edx;
> > + UINT32 LevelNumber;
> >
> > - if (CPUID_EXTENDED_TOPOLOGY > gMaximumBasicFunction) {
> > + if (LeafFunction > gMaximumBasicFunction) {
> > + return;
> > + }
> > + if ((LeafFunction != CPUID_EXTENDED_TOPOLOGY) && (LeafFunction !=
> > + CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION)) {
> > 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_V2_EXTENDED_TOPOLOGY_ENUMERATION_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_ENUMERATION-2",
> > + LeafFunction, LevelNumber);
> > + Print (L" EAX:%08x EBX:%08x ECX:%08x EDX:%08x\n", Eax.Uint32,
> > Ebx.Uint32, Ecx.Uint32, Edx);
> > + PRINT_BIT_FIELD (Eax, BitsNum);
> > + PRINT_BIT_FIELD (Ebx, ProcessorsNum);
> > + PRINT_BIT_FIELD (Ecx, LevelNum);
> > + PRINT_BIT_FIELD (Ecx, LevelType);
> > + PRINT_VALUE (Edx, x2APIC_ID);
>
> The name for above fields are different in CPUID_EXTENDED_TOPOLOGY and
> CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION,
> So I think above print are not correct for CPUID_EXTENDED_TOPOLOGY, right?
>
Per IA32 SDM, CPUID leaf 0BH and 1FH are very similar except 1FH returns more
level types than that of 0BH.
If you compare the accordingly output EAX/EBX, ECX, EDX, the structure definitions
are the same except the field names are different.
I don't know why the field names are different when the new structure definitions
were added for 1FH.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-04-03 8:09 UTC | newest]
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2019-03-29 8:41 [PATCH] UefiCpuPkg/Cpuid: Dump leaf 1FH information correctly Ray Ni
2019-04-03 6:39 ` Dong, Eric
2019-04-03 8:09 ` Ni, Ray
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