public inbox for devel@edk2.groups.io
 help / color / mirror / Atom feed
From: Ruiyu Ni <ruiyu.ni@intel.com>
To: edk2-devel@lists.01.org
Cc: Jeff Fan <vanjeff_919@hotmail.com>, Eric Dong <eric.dong@intel.com>
Subject: [PATCH] UefiCpuPkg/MpInitLib: Fix timer interrupt is disabled after SwitchBSP
Date: Wed, 17 Jan 2018 13:52:26 +0800	[thread overview]
Message-ID: <20180117055226.229512-1-ruiyu.ni@intel.com> (raw)

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



             reply	other threads:[~2018-01-17  5:47 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-17  5:52 Ruiyu Ni [this message]
2018-01-17  6:47 ` [PATCH] UefiCpuPkg/MpInitLib: Fix timer interrupt is disabled after SwitchBSP Dong, Eric

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=20180117055226.229512-1-ruiyu.ni@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