This is a note to let you know that I've just added the patch titled
KVM: PPC: 44x: fix DCR read/write
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kvm-ppc-44x-fix-dcr-read-write.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From e43a028752fed049e4bd94ef895542f96d79fa74 Mon Sep 17 00:00:00 2001
From: Alexander Graf <[email protected]>
Date: Sat, 6 Oct 2012 03:56:35 +0200
Subject: KVM: PPC: 44x: fix DCR read/write
From: Alexander Graf <[email protected]>
commit e43a028752fed049e4bd94ef895542f96d79fa74 upstream.
When remembering the direction of a DCR transaction, we should write
to the same variable that we interpret on later when doing vcpu_run
again.
Signed-off-by: Alexander Graf <[email protected]>
Signed-off-by: CAI Qian <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/powerpc/kvm/44x_emulate.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/powerpc/kvm/44x_emulate.c
+++ b/arch/powerpc/kvm/44x_emulate.c
@@ -79,6 +79,7 @@ int kvmppc_core_emulate_op(struct kvm_ru
run->dcr.dcrn = dcrn;
run->dcr.data = 0;
run->dcr.is_write = 0;
+ vcpu->arch.dcr_is_write = 0;
vcpu->arch.io_gpr = rt;
vcpu->arch.dcr_needed = 1;
kvmppc_account_exit(vcpu, DCR_EXITS);
@@ -100,6 +101,7 @@ int kvmppc_core_emulate_op(struct kvm_ru
run->dcr.dcrn = dcrn;
run->dcr.data = kvmppc_get_gpr(vcpu, rs);
run->dcr.is_write = 1;
+ vcpu->arch.dcr_is_write = 1;
vcpu->arch.dcr_needed = 1;
kvmppc_account_exit(vcpu, DCR_EXITS);
emulated = EMULATE_DO_DCR;
Patches currently in stable-queue which might be from [email protected] are
queue-3.0/kvm-ppc-44x-fix-dcr-read-write.patch
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