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From: Leo Duran <leo.duran@amd.com>
To: devel@edk2.groups.io
Cc: Leo Duran <leo.duran@amd.com>
Subject: [PATCH v4] UefiCpuPkg: Fix bug in MpInitLib
Date: Sat, 29 Feb 2020 09:05:44 -0600	[thread overview]
Message-ID: <1582988745-1189-1-git-send-email-leo.duran@amd.com> (raw)

This patch fixes an issue introduced recently in MpInitLib, where we read
a PlatformId MSR that is not implemented on AMD processors. The patch uses
CPUID signature check to skip reading the PlatformId MSR.

Changes since v3:
Add header file entry for CPUID definitions: Register/Amd/Cpuid.h

Leo Duran (1):
  UefiCpuPkg/MpInitLib: Skip reading PlatformId on AMD processors.

 UefiCpuPkg/Library/MpInitLib/MpLib.c | 34 ++++++++++++++++++++++++++++++++--
 UefiCpuPkg/Library/MpInitLib/MpLib.h |  3 +++
 2 files changed, 35 insertions(+), 2 deletions(-)
 mode change 100644 => 100755 UefiCpuPkg/Library/MpInitLib/MpLib.h

-- 
2.7.4


             reply	other threads:[~2020-02-29 15:05 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-29 15:05 Leo Duran [this message]
2020-02-29 15:05 ` [PATCH] UefiCpuPkg/MpInitLib: Skip reading PlatformId on AMD processors Leo Duran
2020-02-29 19:50   ` Laszlo Ersek
2020-03-02  1:59   ` Ni, Ray
     [not found]   ` <15F85A23C0D08039.4290@groups.io>
2020-03-02  4:21     ` [edk2-devel] " Ni, Ray
2020-04-17  8:14   ` Gary Lin
2020-04-20  9:41     ` Laszlo Ersek
2020-04-21 18:47       ` Duran, Leo

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