From: "Wu, Hao A" <hao.a.wu@intel.com>
To: devel@edk2.groups.io
Cc: Hao A Wu <hao.a.wu@intel.com>,
Michael Kubacki <michael.a.kubacki@intel.com>,
Michael D Kinney <michael.d.kinney@intel.com>,
Eric Dong <eric.dong@intel.com>, Ray Ni <ray.ni@intel.com>,
Laszlo Ersek <lersek@redhat.com>
Subject: [PATCH v1 1/2] Revert UefiCpuPkg/MpInitLib: Relocate microcode patch fields in CPU_MP_DATA
Date: Thu, 6 Feb 2020 13:23:55 +0800 [thread overview]
Message-ID: <20200206052356.3672-2-hao.a.wu@intel.com> (raw)
In-Reply-To: <20200206052356.3672-1-hao.a.wu@intel.com>
This reverts commit 88bd06616617ef2569f093f7b51893c11ad78e26.
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2465
Commit 88bd0661661 relocates the 'MicrocodePatchAddress' and
'MicrocodePatchRegionSize' fields in structure CPU_MP_DATA to ensure that
they can be properly passed between different architectures.
However, such change is not backward compatible with the scenario like
pre-existing binaries such as FSP. These binaries are built when the code
base has a different version of the CPU_MP_DATA structure definition. This
may cause issues when accessing the 'MicrocodePatchAddress' and
'MicrocodePatchRegionSize' fields, since their offsets are different
(between PEI phase in the FSP binaries and DXE phase in current code
implementation).
Cc: Michael Kubacki <michael.a.kubacki@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Hao A Wu <hao.a.wu@intel.com>
---
UefiCpuPkg/Library/MpInitLib/MpLib.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.h b/UefiCpuPkg/Library/MpInitLib/MpLib.h
index 7c62d75acc..d7e20f0b74 100644
--- a/UefiCpuPkg/Library/MpInitLib/MpLib.h
+++ b/UefiCpuPkg/Library/MpInitLib/MpLib.h
@@ -219,8 +219,6 @@ struct _CPU_MP_DATA {
UINT64 CpuInfoInHob;
UINT32 CpuCount;
UINT32 BspNumber;
- UINT64 MicrocodePatchAddress;
- UINT64 MicrocodePatchRegionSize;
//
// The above fields data will be passed from PEI to DXE
// Please make sure the fields offset same in the different
@@ -264,6 +262,8 @@ struct _CPU_MP_DATA {
UINT8 Vector;
BOOLEAN PeriodicMode;
BOOLEAN TimerInterruptState;
+ UINT64 MicrocodePatchAddress;
+ UINT64 MicrocodePatchRegionSize;
//
// Whether need to use Init-Sipi-Sipi to wake up the APs.
--
2.12.0.windows.1
next prev parent reply other threads:[~2020-02-06 5:24 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-06 5:23 [PATCH v1 0/2] Fix backward incompatible CPU_MP_DATA struct change Wu, Hao A
2020-02-06 5:23 ` Wu, Hao A [this message]
2020-02-07 2:34 ` [PATCH v1 1/2] Revert UefiCpuPkg/MpInitLib: Relocate microcode patch fields in CPU_MP_DATA Dong, Eric
2020-02-10 6:36 ` Ni, Ray
2020-02-06 5:23 ` [PATCH v1 2/2] UefiCpuPkg/MpInitLib: Not pass microcode info between archs " Wu, Hao A
2020-02-07 2:34 ` [edk2-devel] " Dong, Eric
2020-02-11 2:31 ` Ni, Ray
2020-02-06 6:21 ` [PATCH v1 0/2] Fix backward incompatible CPU_MP_DATA struct change Wu, Hao A
2020-02-11 2:55 ` [edk2-devel] " Wu, Hao A
2020-02-11 5:06 ` Wu, Hao A
2020-02-06 13:59 ` Laszlo Ersek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-list from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200206052356.3672-2-hao.a.wu@intel.com \
--to=devel@edk2.groups.io \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox