From: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
To: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Cc: avi@redhat.com, mtosatti@redhat.com, kvm@vger.kernel.org,
aarcange@redhat.com
Subject: Re: [PATCH 1/2] KVM: mmu_notifier: Flush TLBs before releasing mmu_lock
Date: Fri, 10 Feb 2012 15:52:49 +0800 [thread overview]
Message-ID: <4F34CCD1.6050103@linux.vnet.ibm.com> (raw)
In-Reply-To: <20120210152831.6ac3ac87.yoshikawa.takuya@oss.ntt.co.jp>
On 02/10/2012 02:28 PM, Takuya Yoshikawa wrote:
> Other threads may process the same page in that small window and skip
> TLB flush and then return before these functions do flush.
>
It is possible that flush tlb in mmu lock only when writeable
spte is invalided? Sometimes, kvm_flush_remote_tlbs need
long time to wait.
next prev parent reply other threads:[~2012-02-10 7:52 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-10 6:28 [PATCH 1/2] KVM: mmu_notifier: Flush TLBs before releasing mmu_lock Takuya Yoshikawa
2012-02-10 6:29 ` [PATCH 2/2] KVM: MMU: Flush TLBs only once in invlpg() " Takuya Yoshikawa
2012-02-10 6:55 ` Xiao Guangrong
2012-02-10 7:21 ` Takuya Yoshikawa
2012-02-10 7:42 ` Xiao Guangrong
2012-02-14 4:36 ` Takuya Yoshikawa
2012-02-14 4:56 ` Takuya Yoshikawa
2012-02-14 17:21 ` Andrea Arcangeli
2012-02-10 7:52 ` Xiao Guangrong [this message]
2012-02-13 6:00 ` [PATCH 1/2] KVM: mmu_notifier: Flush TLBs " Takuya Yoshikawa
2012-02-14 17:27 ` Andrea Arcangeli
2012-02-10 17:26 ` Marcelo Tosatti
2012-02-14 17:10 ` Andrea Arcangeli
2012-02-14 17:29 ` Marcelo Tosatti
2012-02-14 18:53 ` Andrea Arcangeli
2012-02-14 19:43 ` Marcelo Tosatti
2012-02-15 9:18 ` Avi Kivity
2012-02-15 9:47 ` Avi Kivity
2012-02-15 11:37 ` Xiao Guangrong
2012-02-15 14:07 ` Avi Kivity
2012-02-15 19:16 ` Andrea Arcangeli
2012-02-16 4:50 ` Xiao Guangrong
2012-02-16 11:57 ` Avi Kivity
2012-02-17 2:36 ` Xiao Guangrong
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