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authorNicholas Piggin <npiggin@gmail.com>2020-06-15 16:12:47 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2020-06-16 12:52:43 +1000
commit0bdcfa182506526fbe4e088ff9ca86a31b81828d (patch)
treeef97eb406cdc2735cbd3b51b0105b8855c295a64 /arch
parenta6e2c226c3d51fd93636320e47cabc8a8f0824c5 (diff)
powerpc/64s: Fix KVM interrupt using wrong save area
The CTR register reload in the KVM interrupt path used the wrong save area for SLB (and NMI) interrupts. Fixes: 9600f261acaa ("powerpc/64s/exception: Move KVM test to common code") Cc: stable@vger.kernel.org # v5.7+ Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200615061247.1310763-1-npiggin@gmail.com
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S4
1 files 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)