* [PATCH] KVM: PPC: emulate dcbst
@ 2013-04-09 20:36 ` Stuart Yoder
0 siblings, 0 replies; 7+ messages in thread
From: Stuart Yoder @ 2013-04-09 20:36 UTC (permalink / raw)
To: agraf; +Cc: kvm-ppc, kvm, Stuart Yoder
From: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
---
arch/powerpc/kvm/emulate.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 7a73b6f..631a265 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -38,6 +38,7 @@
#define OP_31_XOP_TRAP 4
#define OP_31_XOP_LWZX 23
+#define OP_31_XOP_DCBST 54
#define OP_31_XOP_TRAP_64 68
#define OP_31_XOP_DCBF 86
#define OP_31_XOP_LBZX 87
@@ -370,6 +371,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
emulated = kvmppc_emulate_mtspr(vcpu, sprn, rs);
break;
+ case OP_31_XOP_DCBST:
case OP_31_XOP_DCBF:
case OP_31_XOP_DCBI:
/* Do nothing. The guest is performing dcbi because
--
1.7.9.7
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH] KVM: PPC: emulate dcbst
@ 2013-04-09 20:36 ` Stuart Yoder
0 siblings, 0 replies; 7+ messages in thread
From: Stuart Yoder @ 2013-04-09 20:36 UTC (permalink / raw)
To: agraf; +Cc: kvm-ppc, kvm, Stuart Yoder
From: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
---
arch/powerpc/kvm/emulate.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 7a73b6f..631a265 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -38,6 +38,7 @@
#define OP_31_XOP_TRAP 4
#define OP_31_XOP_LWZX 23
+#define OP_31_XOP_DCBST 54
#define OP_31_XOP_TRAP_64 68
#define OP_31_XOP_DCBF 86
#define OP_31_XOP_LBZX 87
@@ -370,6 +371,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
emulated = kvmppc_emulate_mtspr(vcpu, sprn, rs);
break;
+ case OP_31_XOP_DCBST:
case OP_31_XOP_DCBF:
case OP_31_XOP_DCBI:
/* Do nothing. The guest is performing dcbi because
--
1.7.9.7
^ permalink raw reply related [flat|nested] 7+ messages in thread
* RE: [PATCH] KVM: PPC: emulate dcbst
2013-04-09 20:36 ` Stuart Yoder
(?)
@ 2013-04-10 3:20 ` Yoder Stuart-B08248
2013-04-10 16:03 ` Scott Wood
-1 siblings, 1 reply; 7+ messages in thread
From: Yoder Stuart-B08248 @ 2013-04-10 3:20 UTC (permalink / raw)
To: agraf@suse.de; +Cc: kvm-ppc@vger.kernel.org, kvm@vger.kernel.org
> -----Original Message-----
> From: Yoder Stuart-B08248
> Sent: Tuesday, April 09, 2013 3:36 PM
> To: agraf@suse.de
> Cc: kvm-ppc@vger.kernel.org; kvm@vger.kernel.org; Yoder Stuart-B08248
> Subject: [PATCH] KVM: PPC: emulate dcbst
>
> From: Stuart Yoder <stuart.yoder@freescale.com>
>
> Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
> ---
One thing I should have mentioned...without this patch
on the host 64-bit guest kernels are currently broken
when using -smp. Not sure how far back things are broken,
the oldest kernel I had a chance to try was like 3.8-rc3.
Stuart
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] KVM: PPC: emulate dcbst
2013-04-10 3:20 ` Yoder Stuart-B08248
@ 2013-04-10 16:03 ` Scott Wood
0 siblings, 0 replies; 7+ messages in thread
From: Scott Wood @ 2013-04-10 16:03 UTC (permalink / raw)
To: Yoder Stuart-B08248
Cc: agraf@suse.de, kvm-ppc@vger.kernel.org, kvm@vger.kernel.org
On 04/09/2013 10:20:41 PM, Yoder Stuart-B08248 wrote:
> > -----Original Message-----
> > From: Yoder Stuart-B08248
> > Sent: Tuesday, April 09, 2013 3:36 PM
> > To: agraf@suse.de
> > Cc: kvm-ppc@vger.kernel.org; kvm@vger.kernel.org; Yoder
> Stuart-B08248
> > Subject: [PATCH] KVM: PPC: emulate dcbst
> >
> > From: Stuart Yoder <stuart.yoder@freescale.com>
> >
> > Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
> > ---
>
> One thing I should have mentioned...without this patch
> on the host 64-bit guest kernels are currently broken
> when using -smp. Not sure how far back things are broken,
> the oldest kernel I had a chance to try was like 3.8-rc3.
It's due to dcbst being used on the spin table, which is treated as
emulated MMIO under QEMU.
-Scott
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] KVM: PPC: emulate dcbst
@ 2013-04-10 16:03 ` Scott Wood
0 siblings, 0 replies; 7+ messages in thread
From: Scott Wood @ 2013-04-10 16:03 UTC (permalink / raw)
To: Yoder Stuart-B08248
Cc: agraf@suse.de, kvm-ppc@vger.kernel.org, kvm@vger.kernel.org
On 04/09/2013 10:20:41 PM, Yoder Stuart-B08248 wrote:
> > -----Original Message-----
> > From: Yoder Stuart-B08248
> > Sent: Tuesday, April 09, 2013 3:36 PM
> > To: agraf@suse.de
> > Cc: kvm-ppc@vger.kernel.org; kvm@vger.kernel.org; Yoder
> Stuart-B08248
> > Subject: [PATCH] KVM: PPC: emulate dcbst
> >
> > From: Stuart Yoder <stuart.yoder@freescale.com>
> >
> > Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
> > ---
>
> One thing I should have mentioned...without this patch
> on the host 64-bit guest kernels are currently broken
> when using -smp. Not sure how far back things are broken,
> the oldest kernel I had a chance to try was like 3.8-rc3.
It's due to dcbst being used on the spin table, which is treated as
emulated MMIO under QEMU.
-Scott
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] KVM: PPC: emulate dcbst
2013-04-09 20:36 ` Stuart Yoder
@ 2013-04-10 22:02 ` Alexander Graf
-1 siblings, 0 replies; 7+ messages in thread
From: Alexander Graf @ 2013-04-10 22:02 UTC (permalink / raw)
To: Stuart Yoder; +Cc: kvm-ppc, kvm
On 09.04.2013, at 22:36, Stuart Yoder wrote:
> From: Stuart Yoder <stuart.yoder@freescale.com>
>
> Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Thanks, applied to kvm-ppc-queue.
Alex
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-04-10 22:02 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-04-09 20:36 [PATCH] KVM: PPC: emulate dcbst Stuart Yoder
2013-04-09 20:36 ` Stuart Yoder
2013-04-10 3:20 ` Yoder Stuart-B08248
2013-04-10 16:03 ` Scott Wood
2013-04-10 16:03 ` Scott Wood
2013-04-10 22:02 ` Alexander Graf
2013-04-10 22:02 ` Alexander Graf
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