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From: | Anthony Liguori |
Subject: | Re: [Qemu-devel] [PATCH] Guest stop notification |
Date: | Tue, 29 Nov 2011 16:10:21 -0600 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.21) Gecko/20110831 Lightning/1.0b2 Thunderbird/3.1.13 |
On 11/29/2011 03:36 PM, Eric B Munson wrote:
Often when a guest is stopped from the qemu console, it will report spurious soft lockup warnings on resume. There are kernel patches being discussed that will give the host the ability to tell the guest that it is being stopped and should ignore the soft lockup warning that generates. Signed-off-by: Eric B Munson<address@hidden>
Reviewed-by: Anthony Liguori <address@hidden> Regards, Anthony Liguori
Cc: address@hidden Cc: address@hidden Cc: address@hidden Cc: address@hidden Cc: address@hidden Cc: address@hidden --- target-i386/kvm.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 5bfc21f..defd364 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -336,12 +336,18 @@ static int kvm_inject_mce_oldstyle(CPUState *env) return 0; } +static void kvm_put_guest_paused(CPUState *penv) +{ + kvm_vcpu_ioctl(penv, KVM_GUEST_PAUSED, 0); +} + static void cpu_update_state(void *opaque, int running, RunState state) { CPUState *env = opaque; if (running) { env->tsc_valid = false; + kvm_put_guest_paused(env); } }
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