[edk2-devel] [PATCH] UefiCpuPkg: Calculate DisplayFamily correctly
Ni, Ray
ray.ni at intel.com
Mon Mar 6 11:52:00 UTC 2023
ExtendedModelId field should use shift. So I believe nothing wrong there.
> -----Original Message-----
> From: Mike Maslenkin <mike.maslenkin at gmail.com>
> Sent: Monday, March 6, 2023 7:14 PM
> To: devel at edk2.groups.io; Zeng, Star <star.zeng at intel.com>
> Cc: Liu, Zhiguang <zhiguang.liu at intel.com>; Dong, Eric
> <eric.dong at intel.com>; Ni, Ray <ray.ni at intel.com>; Kumar, Rahul R
> <rahul.r.kumar at intel.com>; Gerd Hoffmann <kraxel at redhat.com>
> Subject: Re: [edk2-devel] [PATCH] UefiCpuPkg: Calculate DisplayFamily
> correctly
>
> Handling of ExtendedModelId field has the same problem.
> This patch could be improved to fix that too.
>
> On Mon, Mar 6, 2023 at 1:37 PM Zeng, Star <star.zeng at intel.com> wrote:
> >
> > BTW, look like wrong Bugzilla ID is used in commit message, please correct
> it when merging the patch.
> >
> > -----Original Message-----
> > From: devel at edk2.groups.io <devel at edk2.groups.io> On Behalf Of Zeng,
> Star
> > Sent: Monday, March 6, 2023 6:35 PM
> > To: devel at edk2.groups.io; Liu, Zhiguang <zhiguang.liu at intel.com>
> > Cc: Dong, Eric <eric.dong at intel.com>; Ni, Ray <ray.ni at intel.com>; Kumar,
> Rahul R <rahul.r.kumar at intel.com>; Gerd Hoffmann <kraxel at redhat.com>;
> Zeng, Star <star.zeng at intel.com>
> > Subject: Re: [edk2-devel] [PATCH] UefiCpuPkg: Calculate DisplayFamily
> correctly
> >
> > Reviewed-by: Star Zeng <star.zeng at intel.com>
> >
> > -----Original Message-----
> > From: devel at edk2.groups.io <devel at edk2.groups.io> On Behalf Of
> Zhiguang Liu
> > Sent: Thursday, March 2, 2023 9:27 AM
> > To: devel at edk2.groups.io
> > Cc: Liu, Zhiguang <zhiguang.liu at intel.com>; Dong, Eric
> <eric.dong at intel.com>; Ni, Ray <ray.ni at intel.com>; Kumar, Rahul R
> <rahul.r.kumar at intel.com>; Gerd Hoffmann <kraxel at redhat.com>
> > Subject: [edk2-devel] [PATCH] UefiCpuPkg: Calculate DisplayFamily
> correctly
> >
> > REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4238
> >
> > Per SDM, DisplayFamily = Extended_Family_ID + Family_ID.
> > Correct the related code.
> >
> > Cc: Eric Dong <eric.dong at intel.com>
> > Cc: Ray Ni <ray.ni at intel.com>
> > Cc: Rahul Kumar <rahul1.kumar at intel.com>
> > Cc: Gerd Hoffmann <kraxel at redhat.com>
> > Signed-off-by: Zhiguang Liu <zhiguang.liu at intel.com>
> > ---
> > UefiCpuPkg/Application/Cpuid/Cpuid.c | 4 ++--
> > .../Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c | 4 ++--
> > 2 files changed, 4 insertions(+), 4 deletions(-)
> >
> > diff --git a/UefiCpuPkg/Application/Cpuid/Cpuid.c
> b/UefiCpuPkg/Application/Cpuid/Cpuid.c
> > index 372c6ef87d..51c463fb10 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 - 2019, Intel Corporation. All rights reserved.<BR>
> > + Copyright (c) 2016 - 2023, Intel Corporation. All rights reserved.<BR>
> > SPDX-License-Identifier: BSD-2-Clause-Patent
> >
> > **/
> > @@ -217,7 +217,7 @@ CpuidVersionInfo (
> >
> > DisplayFamily = Eax.Bits.FamilyId;
> > if (Eax.Bits.FamilyId == 0x0F) {
> > - DisplayFamily |= (Eax.Bits.ExtendedFamilyId << 4);
> > + DisplayFamily += Eax.Bits.ExtendedFamilyId;
> > }
> >
> > DisplayModel = Eax.Bits.Model;
> > diff --git
> a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
> b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
> > index a8e4f920fc..25b8958252 100644
> > --- a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
> > +++ b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
> > @@ -1,7 +1,7 @@
> > /** @file
> > CPU Features Initialize functions.
> >
> > - Copyright (c) 2017 - 2021, Intel Corporation. All rights reserved.<BR>
> > + Copyright (c) 2017 - 2023, Intel Corporation. All rights reserved.<BR>
> > SPDX-License-Identifier: BSD-2-Clause-Patent
> >
> > **/
> > @@ -67,7 +67,7 @@ FillProcessorInfo (
> >
> > DisplayedFamily = Eax.Bits.FamilyId;
> > if (Eax.Bits.FamilyId == 0x0F) {
> > - DisplayedFamily |= (Eax.Bits.ExtendedFamilyId << 4);
> > + DisplayedFamily += Eax.Bits.ExtendedFamilyId;
> > }
> >
> > DisplayedModel = Eax.Bits.Model;
> > --
> > 2.31.1.windows.1
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
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