From: "Dong, Eric" <eric.dong@intel.com>
To: "Ni, Ruiyu" <ruiyu.ni@intel.com>,
"edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Subject: Re: [PATCH] UefiCpuPkg/MpInitLib: Fix timer interrupt is disabled after SwitchBSP
Date: Wed, 17 Jan 2018 06:47:00 +0000 [thread overview]
Message-ID: <ED077930C258884BBCB450DB737E66224AA8B35F@shsmsx102.ccr.corp.intel.com> (raw)
In-Reply-To: <20180117055226.229512-1-ruiyu.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
-----Original Message-----
From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Ruiyu Ni
Sent: Wednesday, January 17, 2018 1:52 PM
To: edk2-devel@lists.01.org
Cc: Dong, Eric <eric.dong@intel.com>
Subject: [edk2] [PATCH] UefiCpuPkg/MpInitLib: Fix timer interrupt is disabled after SwitchBSP
Commits a2ea6894e6ca95e8d7a254593661a79e4b988626
* UefiCpuPkg/MpInitLib: Fix a bug that AP enters timer INT handler masked the interrupts in AP.
But it didn't unmask the interrupt in new BSP when Switch BSP happens.
The patch fixed this issue.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jeff Fan <vanjeff_919@hotmail.com>
Cc: Eric Dong <eric.dong@intel.com>
---
UefiCpuPkg/Library/MpInitLib/MpLib.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c b/UefiCpuPkg/Library/MpInitLib/MpLib.c
index cdc03113e5..8ec016e928 100644
--- a/UefiCpuPkg/Library/MpInitLib/MpLib.c
+++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c
@@ -1771,6 +1771,7 @@ SwitchBSPWorker (
ApicBaseMsr.Uint64 = AsmReadMsr64 (MSR_IA32_APIC_BASE);
ApicBaseMsr.Bits.BSP = 1;
AsmWriteMsr64 (MSR_IA32_APIC_BASE, ApicBaseMsr.Uint64);
+ ProgramVirtualWireMode ();
//
// Wait for old BSP finished AP task
--
2.15.1.windows.2
_______________________________________________
edk2-devel mailing list
edk2-devel@lists.01.org
https://lists.01.org/mailman/listinfo/edk2-devel
prev parent reply other threads:[~2018-01-17 6:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-17 5:52 [PATCH] UefiCpuPkg/MpInitLib: Fix timer interrupt is disabled after SwitchBSP Ruiyu Ni
2018-01-17 6:47 ` Dong, Eric [this message]
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=ED077930C258884BBCB450DB737E66224AA8B35F@shsmsx102.ccr.corp.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