lkml.org 
[lkml]   [2010]   [Oct]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v7 12/12] Send async PF when guest is not in userspace too.
Date
If guest indicates that it can handle async pf in kernel mode too send
it, but only if interrupts are enabled.

Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.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 1e442df..51cff2f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6248,7 +6248,8 @@ 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))
kvm_make_request(KVM_REQ_APF_HALT, vcpu);
else if (!apf_put_user(vcpu, KVM_PV_REASON_PAGE_NOT_PRESENT)) {
vcpu->arch.fault.error_code = 0;
--
1.7.1


\
 
 \ /
  Last update: 2010-10-14 11:25    [W:0.176 / U:0.668 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site