From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>,
Christian Zigotzky <chzigotzky@xenosoft.de>
Subject: [PATCH] powerpc/64s: Fix KVM interrupt using wrong save area
Date: Mon, 15 Jun 2020 16:12:47 +1000 [thread overview]
Message-ID: <20200615061247.1310763-1-npiggin@gmail.com> (raw)
The CTR register reload in the KVM interrupt path used the wrong save
area for SLB (and NMI) interrupts.
Fixes: 9600f261acaaa ("powerpc/64s/exception: Move KVM test to common code")
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/kernel/exceptions-64s.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index e70ebb5c318c..fa080694e581 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -270,7 +270,7 @@ BEGIN_FTR_SECTION
END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
.endif
- ld r10,PACA_EXGEN+EX_CTR(r13)
+ ld r10,IAREA+EX_CTR(r13)
mtctr r10
BEGIN_FTR_SECTION
ld r10,IAREA+EX_PPR(r13)
@@ -298,7 +298,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
.if IKVM_SKIP
89: mtocrf 0x80,r9
- ld r10,PACA_EXGEN+EX_CTR(r13)
+ ld r10,IAREA+EX_CTR(r13)
mtctr r10
ld r9,IAREA+EX_R9(r13)
ld r10,IAREA+EX_R10(r13)
--
2.23.0
next reply other threads:[~2020-06-15 6:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-15 6:12 Nicholas Piggin [this message]
2020-06-18 12:37 ` [PATCH] powerpc/64s: Fix KVM interrupt using wrong save area Michael Ellerman
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-all 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=20200615061247.1310763-1-npiggin@gmail.com \
--to=npiggin@gmail.com \
--cc=chzigotzky@xenosoft.de \
--cc=linuxppc-dev@lists.ozlabs.org \
/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;
as well as URLs for NNTP newsgroup(s).