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Date:	Mon,  4 Oct 2010 17:56:34 +0200
From:	Gleb Natapov <gleb@...hat.com>
To:	kvm@...r.kernel.org
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org, avi@...hat.com,
	mingo@...e.hu, a.p.zijlstra@...llo.nl, tglx@...utronix.de,
	hpa@...or.com, riel@...hat.com, cl@...ux-foundation.org,
	mtosatti@...hat.com
Subject: [PATCH v6 12/12] Send async PF when guest is not in userspace too.

If guest indicates that it can handle async pf in kernel mode too send
it, but only if interrupts are enabled.

Signed-off-by: Gleb Natapov <gleb@...hat.com>
---
 arch/x86/kvm/x86.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index cad4412..30b1cd1 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6244,7 +6244,8 @@ void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
 		kvm_add_async_pf_gfn(vcpu, work->arch.gfn);
 
 		if (!(vcpu->arch.apf.msr_val & KVM_ASYNC_PF_ENABLED) ||
-		    kvm_x86_ops->get_cpl(vcpu) == 0)
+		    (vcpu->arch.apf.send_user_only &&
+		     kvm_x86_ops->get_cpl(vcpu) == 0))
 			vcpu->arch.mp_state = KVM_MP_STATE_HALTED;
 		else if (!apf_put_user(vcpu, KVM_PV_REASON_PAGE_NOT_PRESENT)) {
 			vcpu->arch.fault.error_code = 0;
-- 
1.7.1

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