From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
To: Gleb Natapov <gleb@redhat.com>
Cc: Avi Kivity <avi@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
LKML <linux-kernel@vger.kernel.org>, KVM <kvm@vger.kernel.org>
Subject: Re: [RFC PATCH v2 7/7] KVM: KVM: don't break vcpu 'halt' state due to apfs
Date: Wed, 03 Nov 2010 17:47:53 +0800 [thread overview]
Message-ID: <4CD12FC9.9070902@cn.fujitsu.com> (raw)
In-Reply-To: <20101101125551.GD31722@redhat.com>
On 11/01/2010 08:55 PM, Gleb Natapov wrote:
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 2cfdf2d..f7aed95 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -5295,8 +5295,9 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
> {
> switch(vcpu->arch.mp_state) {
> case KVM_MP_STATE_HALTED:
> - vcpu->arch.mp_state =
> - KVM_MP_STATE_RUNNABLE;
> + if (list_empty_careful(&vcpu->async_pf.done))
> + vcpu->arch.mp_state =
> + KVM_MP_STATE_RUNNABLE;
> case KVM_MP_STATE_RUNNABLE:
> vcpu->arch.apf.halted = false;
> break;
> @@ -6279,6 +6280,7 @@ void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
> vcpu->arch.fault.error_code = 0;
> vcpu->arch.fault.address = work->arch.token;
> kvm_inject_page_fault(vcpu);
> + vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
> }
> }
>
Tested with full virtualization guests, it works well for me. Thanks!
next prev parent reply other threads:[~2010-11-03 9:43 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-01 8:58 [PATCH v2 1/7] KVM: fix tracing kvm_try_async_get_page Xiao Guangrong
2010-11-01 8:59 ` [PATCH v2 2/7] KVM: cleanup aysnc_pf tracepoints Xiao Guangrong
2010-11-01 9:00 ` [PATCH v2 3/7] KVM: fix searching async gfn in kvm_async_pf_gfn_slot Xiao Guangrong
2010-11-01 9:01 ` [PATCH v2 4/7] KVM: avoid unnecessary wait for a async pf Xiao Guangrong
2010-11-01 9:25 ` Gleb Natapov
2010-11-01 9:02 ` [PATCH v2 5/7] KVM: handle more completed apfs if possible Xiao Guangrong
2010-11-01 9:24 ` Gleb Natapov
2010-11-01 9:34 ` Xiao Guangrong
2010-11-02 9:35 ` [PATCH v3 " Xiao Guangrong
2010-11-02 12:38 ` Gleb Natapov
2010-11-01 9:03 ` [RFC PATCH v2 6/7] KVM: fix the race while wakeup all pv guest Xiao Guangrong
2010-11-01 12:58 ` Gleb Natapov
2010-11-01 9:05 ` [RFC PATCH v2 7/7] KVM: KVM: don't break vcpu 'halt' state due to apfs Xiao Guangrong
2010-11-01 12:55 ` Gleb Natapov
2010-11-02 2:30 ` Xiao Guangrong
2010-11-02 6:56 ` Gleb Natapov
2010-11-02 7:31 ` Xiao Guangrong
2010-11-02 7:45 ` Gleb Natapov
2010-11-02 9:09 ` Xiao Guangrong
2010-11-02 9:14 ` Gleb Natapov
2010-11-02 9:30 ` Xiao Guangrong
2010-11-02 12:39 ` Gleb Natapov
2010-11-03 9:47 ` Xiao Guangrong [this message]
2010-11-03 9:45 ` Gleb Natapov
2010-11-03 13:43 ` Marcelo Tosatti
2010-11-01 13:09 ` [PATCH v2 1/7] KVM: fix tracing kvm_try_async_get_page Gleb Natapov
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