From: Takuya Yoshikawa <takuya.yoshikawa@gmail.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>,
Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>,
Avi Kivity <avi@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
KVM <kvm@vger.kernel.org>
Subject: Re: [PATCH v6 6/9] KVM: MMU: fast path of handling guest page fault
Date: Tue, 19 Jun 2012 11:07:28 +0900 [thread overview]
Message-ID: <20120619110728.14504b91ec1c2ee9cd81b413@gmail.com> (raw)
In-Reply-To: <20120618192120.GA2697@amt.cnet>
On Mon, 18 Jun 2012 16:21:20 -0300
Marcelo Tosatti <mtosatti@redhat.com> wrote:
> > [not about this patch]
> >
> > EPT accessed/dirty bits will be used for more things in the future.
> > Are there any rules for using these bits?
> >
> > Same as other bits?
>
> Do you mean hardware rules or KVM rules?
KVM rules.
Your concern was about "lock-less" v. "current EPT-A/D code".
My question was what we should care not to break the former
in the future.
Takuya
next prev parent reply other threads:[~2012-06-19 2:07 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-29 6:46 [PATCH v6 0/9] KVM: MMU: fast page fault Xiao Guangrong
2012-05-29 6:47 ` [PATCH v6 1/9] KVM: MMU: return bool in __rmap_write_protect Xiao Guangrong
2012-05-29 6:47 ` [PATCH v6 2/9] KVM: MMU: abstract spte write-protect Xiao Guangrong
2012-05-29 6:48 ` [PATCH v6 3/9] KVM: VMX: export PFEC.P bit on ept Xiao Guangrong
2012-05-29 6:48 ` [PATCH v6 4/9] KVM: MMU: fold tlb flush judgement into mmu_spte_update Xiao Guangrong
2012-05-29 6:49 ` [PATCH v6 5/9] KVM: MMU: introduce SPTE_MMU_WRITEABLE bit Xiao Guangrong
2012-06-11 23:32 ` Marcelo Tosatti
2012-06-12 2:23 ` Xiao Guangrong
2012-06-13 2:01 ` Marcelo Tosatti
2012-06-13 3:11 ` Xiao Guangrong
2012-06-13 21:39 ` Marcelo Tosatti
2012-06-14 1:13 ` Takuya Yoshikawa
2012-06-14 2:41 ` Xiao Guangrong
2012-06-14 2:36 ` Xiao Guangrong
2012-05-29 6:50 ` [PATCH v6 6/9] KVM: MMU: fast path of handling guest page fault Xiao Guangrong
2012-06-13 22:40 ` Marcelo Tosatti
2012-06-14 1:22 ` Takuya Yoshikawa
2012-06-18 19:21 ` Marcelo Tosatti
2012-06-19 2:07 ` Takuya Yoshikawa [this message]
2012-06-14 3:00 ` Xiao Guangrong
2012-06-18 19:32 ` Marcelo Tosatti
2012-06-19 2:04 ` Xiao Guangrong
2012-05-29 6:51 ` [PATCH v6 7/9] KVM: MMU: trace fast " Xiao Guangrong
2012-05-29 6:51 ` [PATCH v6 8/9] KVM: MMU: fix kvm_mmu_pagetable_walk tracepoint Xiao Guangrong
2012-05-29 6:52 ` [PATCH v6 9/9] KVM: MMU: document mmu-lock and fast page fault Xiao Guangrong
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