On 10/27/2009 11:39 AM, Avi Kivity wrote:
On 10/26/2009 09:55 PM, Martin Gallant wrote:
Is “–cpu host” supported on AMD hosts?
Yes.
Whenever I try to use this option on a Windows Vista/7 client, I get
blue
screen.
Removing the option, the client works fine.
Host kernel 2.6.31.4. Userspace is qemu-kvm-0.11.0. (Previous versions
fail too)
/proc/cpuinfo snippet:
vendor_id : AuthenticAMD
cpu family : 15
model : 107
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 5200+
Please post the flags : field as well.
You might try the attached patch.
--
error compiling committee.c: too many arguments to function
>From d8e9cf4f4f688873456b297d78be70c5c328489c Mon Sep 17 00:00:00 2001
From: Andre Przywara <andre.przywara@xxxxxxx>
Date: Wed, 24 Jun 2009 12:44:34 +0200
Subject: [PATCH -stable] KVM: ignore reads from AMDs C1E enabled MSR
If the Linux kernel detects an C1E capable AMD processor (K8 RevF and
higher), it will access a certain MSR on every attempt to go to halt.
Explicitly handle this read and return 0 to let KVM run a Linux guest
with the native AMD host CPU propagated to the guest.
Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
(cherry picked from commit 1fdbd48c242db996107f72ae4140ffe8163e26a8)
---
arch/x86/kvm/x86.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8aafb62..aa4c46f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -949,6 +949,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
case MSR_P6_EVNTSEL0:
case MSR_P6_EVNTSEL1:
case MSR_K7_EVNTSEL0:
+ case MSR_K8_INT_PENDING_MSG:
data = 0;
break;
case MSR_MTRRcap:
--
1.6.5.2
