From: Gleb Natapov <gleb@redhat.com>
To: kvm@vger.kernel.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, avi@redhat.com,
mingo@elte.hu, a.p.zijlstra@chello.nl, tglx@linutronix.de,
hpa@zytor.com, riel@redhat.com, cl@linux-foundation.org,
mtosatti@redhat.com
Subject: [PATCH v4 12/12] Send async PF when guest is not in userspace too.
Date: Tue, 6 Jul 2010 19:25:00 +0300 [thread overview]
Message-ID: <1278433500-29884-13-git-send-email-gleb@redhat.com> (raw)
In-Reply-To: <1278433500-29884-1-git-send-email-gleb@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
arch/x86/kvm/mmu.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 95a0a8b..297f399 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2280,7 +2280,13 @@ static bool can_do_async_pf(struct kvm_vcpu *vcpu)
if (!vcpu->arch.apf_data || kvm_event_needs_reinjection(vcpu))
return false;
- return !!kvm_x86_ops->get_cpl(vcpu);
+ if (vcpu->arch.apf_send_user_only)
+ return !!kvm_x86_ops->get_cpl(vcpu);
+
+ if (!kvm_x86_ops->interrupt_allowed(vcpu))
+ return false;
+
+ return true;
}
static int tdp_page_fault(struct kvm_vcpu *vcpu, gva_t gpa, u32 error_code,
--
1.7.1
--
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next prev parent reply other threads:[~2010-07-06 16:25 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-06 16:24 [PATCH v4 00/12] KVM: Add host swap event notifications for PV guest Gleb Natapov
2010-07-06 16:24 ` [PATCH v4 01/12] Move kvm_smp_prepare_boot_cpu() from kvmclock.c to kvm.c Gleb Natapov
2010-07-07 16:17 ` Rik van Riel
2010-07-06 16:24 ` [PATCH v4 02/12] Add PV MSR to enable asynchronous page faults delivery Gleb Natapov
2010-07-07 18:13 ` Rik van Riel
2010-07-06 16:24 ` [PATCH v4 03/12] Add async PF initialization to PV guest Gleb Natapov
2010-07-07 15:41 ` Peter Zijlstra
2010-07-08 13:24 ` Gleb Natapov
2010-07-06 16:24 ` [PATCH v4 04/12] Provide special async page fault handler when async PF capability is detected Gleb Natapov
2010-07-07 22:38 ` Rik van Riel
2010-07-06 16:24 ` [PATCH v4 05/12] Export __get_user_pages_fast Gleb Natapov
2010-07-07 22:45 ` Rik van Riel
2010-07-06 16:24 ` [PATCH v4 06/12] Add get_user_pages() variant that fails if major fault is required Gleb Natapov
2010-07-06 16:24 ` [PATCH v4 07/12] Maintain memslot version number Gleb Natapov
2010-07-08 0:19 ` Rik van Riel
2010-07-06 16:24 ` [PATCH v4 08/12] Inject asynchronous page fault into a guest if page is swapped out Gleb Natapov
2010-07-08 4:09 ` Rik van Riel
2010-07-08 15:59 ` Marcelo Tosatti
2010-07-08 18:05 ` Gleb Natapov
2010-07-08 18:09 ` Peter Zijlstra
2010-07-08 18:10 ` Peter Zijlstra
2010-07-09 15:50 ` Gleb Natapov
2010-07-06 16:24 ` [PATCH v4 09/12] Retry fault before vmentry Gleb Natapov
2010-07-08 4:21 ` Rik van Riel
2010-07-08 16:17 ` Marcelo Tosatti
2010-07-06 16:24 ` [PATCH v4 10/12] Handle async PF in non preemptable context Gleb Natapov
2010-07-08 4:22 ` Rik van Riel
2010-07-06 16:24 ` [PATCH v4 11/12] Let host know whether the guest can handle async PF in non-userspace context Gleb Natapov
2010-07-08 4:28 ` Rik van Riel
2010-07-08 13:35 ` Gleb Natapov
2010-07-06 16:25 ` Gleb Natapov [this message]
2010-07-08 4:29 ` [PATCH v4 12/12] Send async PF when guest is not in userspace too Rik van Riel
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