From: Leo Duran <leo.duran@amd.com>
To: devel@edk2.groups.io
Cc: Leo Duran <leo.duran@amd.com>
Subject: [PATCH v2] UefiCpuPkg: Fix bug in MpInitLib
Date: Fri, 28 Feb 2020 12:45:41 -0600 [thread overview]
Message-ID: <1582915542-28940-1-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 v1:
- Undo changes to LocalApicLib to not export CPUID signature check.
- Undo changes to MpInitLib/Microcode.c and rely on existing PCDs to manage
loading of microcode patches.
Leo Duran (1):
UefiCpuPkg/MpInitLib: Skip reading PlatformId on AMD processors.
UefiCpuPkg/Library/MpInitLib/MpLib.c | 34 ++++++++++++++++++++++++++++++++--
1 file changed, 32 insertions(+), 2 deletions(-)
--
2.7.4
next reply other threads:[~2020-02-28 18:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-28 18:45 Leo Duran [this message]
2020-02-28 18:45 ` [PATCH] UefiCpuPkg/MpInitLib: Skip reading PlatformId on AMD processors Leo Duran
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