public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
To: Avi Kivity <avi@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
	Gleb Natapov <gleb@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>, KVM <kvm@vger.kernel.org>
Subject: [PATCH 2/3] KVM: MMU: don not retry #PF for nonpaging guest
Date: Thu, 04 Nov 2010 18:32:42 +0800	[thread overview]
Message-ID: <4CD28BCA.1060907@cn.fujitsu.com> (raw)
In-Reply-To: <4CD28B5F.1040205@cn.fujitsu.com>

nonpaing guest's 'direct_map' is also true, retry #PF for those
guests is useless, so use 'tdp_enabled' instead

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---
 arch/x86/kvm/x86.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2044302..aacc5eb 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6174,7 +6174,7 @@ void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, struct kvm_async_pf *work)
 {
 	int r;
 
-	if (!vcpu->arch.mmu.direct_map || is_error_page(work->page))
+	if (!tdp_enabled || is_error_page(work->page))
 		return;
 
 	r = kvm_mmu_reload(vcpu);
-- 
1.7.0.4


  reply	other threads:[~2010-11-04 10:28 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-04 10:30 [PATCH 1/3] KVM: MMU: fix missing post sync audit Xiao Guangrong
2010-11-04 10:32 ` Xiao Guangrong [this message]
2010-11-04 10:35   ` [PATCH 2/3] KVM: MMU: don not retry #PF for nonpaging guest Gleb Natapov
2010-11-05  5:39     ` Xiao Guangrong
2010-11-05  7:45       ` Gleb Natapov
2010-11-05  8:03         ` Xiao Guangrong
2010-11-05 10:31           ` Gleb Natapov
2010-11-08  2:14             ` Xiao Guangrong
2010-11-08 13:52               ` Gleb Natapov
2010-11-08 16:58                 ` Xiao Guangrong
2010-11-08 17:01                   ` Gleb Natapov
2010-11-09  8:03       ` Gleb Natapov
2010-11-09  8:48         ` Xiao Guangrong
2010-11-09  9:26           ` Gleb Natapov
2010-11-09  9:52             ` Xiao Guangrong
2010-11-09 10:51               ` Gleb Natapov
2010-11-10  2:08                 ` Xiao Guangrong
2010-11-04 10:36 ` [PATCH 3/3] KVM: MMU: retry #PF for softmmu Xiao Guangrong
2010-11-09  8:06   ` Gleb Natapov
2010-11-09  9:16     ` Xiao Guangrong

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4CD28BCA.1060907@cn.fujitsu.com \
    --to=xiaoguangrong@cn.fujitsu.com \
    --cc=avi@redhat.com \
    --cc=gleb@redhat.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mtosatti@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox