From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Avi Kivity <avi@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
KVM <kvm@vger.kernel.org>
Subject: Re: [PATCH v2 21/22] KVM: MMU: mmio page fault support
Date: Thu, 23 Jun 2011 14:40:41 +0800 [thread overview]
Message-ID: <4E02DFE9.901@cn.fujitsu.com> (raw)
In-Reply-To: <4E02B0BE.7070003@cn.fujitsu.com>
On 06/23/2011 11:19 AM, Xiao Guangrong wrote:
>> Otherwise you can move the mmio info from an mmio spte back to
>> mmio_gva/mmio_gfn after a TLB flush, without rereading the guest
>> pagetable.
>>
>
> We do not read the guest page table when mmio page fault occurred,
> we just do it as you say:
> - Firstly, walk the shadow page table to get the mmio spte
> - Then, cache the mmio spte info to mmio_gva/mmio_gfn
>
> I missed your meaning?
>
Marcelo, sorry for my poor English, i missed your meaning, please ignore
this. :(
next prev parent reply other threads:[~2011-06-23 6:38 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-22 14:27 [PATCH v2 0/22] KVM: optimize for MMIO handled Xiao Guangrong
2011-06-22 14:28 ` [PATCH v2 01/22] KVM: MMU: fix walking shadow page table Xiao Guangrong
2011-06-22 17:13 ` Marcelo Tosatti
2011-06-23 2:05 ` Xiao Guangrong
2011-06-27 6:35 ` Xiao Guangrong
2011-06-22 14:28 ` [PATCH v2 02/22] KVM: MMU: do not update slot bitmap if spte is nonpresent Xiao Guangrong
2011-06-22 14:29 ` [PATCH v2 03/22] KVM: x86: fix broken read emulation spans a page boundary Xiao Guangrong
2011-06-29 8:21 ` Avi Kivity
2011-06-29 10:53 ` Xiao Guangrong
2011-06-29 11:19 ` Avi Kivity
2011-06-22 14:29 ` [PATCH v2 04/22] KVM: x86: introduce vcpu_gva_to_gpa to cleanup the code Xiao Guangrong
2011-06-29 8:24 ` Avi Kivity
2011-06-29 10:56 ` Xiao Guangrong
2011-06-29 11:09 ` Avi Kivity
2011-06-29 11:26 ` Xiao Guangrong
2011-06-29 11:26 ` Avi Kivity
2011-06-29 11:48 ` Gleb Natapov
2011-06-22 14:30 ` [PATCH v2 05/22] KVM: x86: abstract the operation for read/write emulation Xiao Guangrong
2011-06-29 8:37 ` Avi Kivity
2011-06-29 10:59 ` Xiao Guangrong
2011-06-22 14:30 ` [PATCH v2 06/22] KVM: x86: cleanup the code of " Xiao Guangrong
2011-06-22 14:31 ` [PATCH v2 07/22] KVM: MMU: cache mmio info on page fault path Xiao Guangrong
2011-06-29 8:48 ` Avi Kivity
2011-06-29 11:09 ` Xiao Guangrong
2011-06-29 11:10 ` Avi Kivity
2011-06-22 14:31 ` [PATCH v2 08/22] KVM: MMU: optimize to handle dirty bit Xiao Guangrong
2011-06-22 14:31 ` [PATCH v2 09/22] KVM: MMU: cleanup for FNAME(fetch) Xiao Guangrong
2011-06-22 14:32 ` [PATCH v2 10/22] KVM: MMU: rename 'pt_write' to 'emulate' Xiao Guangrong
2011-06-22 14:32 ` [PATCH v2 11/22] KVM: MMU: count used shadow pages on prepareing path Xiao Guangrong
2011-06-22 14:32 ` [PATCH v2 12/22] KVM: MMU: split kvm_mmu_free_page Xiao Guangrong
2011-06-22 14:33 ` [PATCH v2 13/22] KVM: MMU: remove bypass_guest_pf Xiao Guangrong
2011-06-22 14:33 ` [PATCH v2 14/22] KVM: MMU: filter out the mmio pfn from the fault pfn Xiao Guangrong
2011-06-22 14:34 ` [PATCH v2 15/22] KVM: MMU: abstract some functions to handle " Xiao Guangrong
2011-06-22 14:34 ` [PATCH v2 16/22] KVM: MMU: introduce the rules to modify shadow page table Xiao Guangrong
2011-06-22 14:34 ` [PATCH v2 17/22] KVM: MMU: clean up spte updating and clearing Xiao Guangrong
2011-06-22 14:35 ` [PATCH 18/22] KVM: MMU: do not need atomicly to set/clear spte Xiao Guangrong
2011-06-22 14:35 ` [PATCH v2 19/22] KVM: MMU: lockless walking shadow page table Xiao Guangrong
2011-06-29 9:16 ` Avi Kivity
2011-06-29 11:16 ` Xiao Guangrong
2011-06-29 11:18 ` Avi Kivity
2011-06-29 11:50 ` Xiao Guangrong
2011-06-29 12:18 ` Avi Kivity
2011-06-29 12:28 ` Xiao Guangrong
2011-06-29 12:27 ` Avi Kivity
2011-06-29 12:39 ` Xiao Guangrong
2011-06-29 13:01 ` Avi Kivity
2011-06-29 13:05 ` Xiao Guangrong
2011-06-22 14:35 ` [PATCH v2 20/22] KVM: MMU: reorganize struct kvm_shadow_walk_iterator Xiao Guangrong
2011-06-22 14:36 ` [PATCH v2 21/22] KVM: MMU: mmio page fault support Xiao Guangrong
2011-06-22 21:59 ` Marcelo Tosatti
2011-06-23 3:19 ` Xiao Guangrong
2011-06-23 6:40 ` Xiao Guangrong [this message]
2011-06-23 14:21 ` Marcelo Tosatti
2011-06-23 17:55 ` Xiao Guangrong
2011-06-23 20:13 ` Marcelo Tosatti
2011-06-24 2:04 ` Xiao Guangrong
2011-06-26 8:42 ` Avi Kivity
2011-06-27 11:00 ` [PATCH v3 " Xiao Guangrong
2011-06-29 9:22 ` [PATCH v2 " Avi Kivity
2011-06-29 12:28 ` Xiao Guangrong
2011-06-22 14:36 ` [PATCH v2 22/22] KVM: MMU: trace mmio page fault Xiao Guangrong
2011-06-29 9:23 ` [PATCH v2 0/22] KVM: optimize for MMIO handled Avi Kivity
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=4E02DFE9.901@cn.fujitsu.com \
--to=xiaoguangrong@cn.fujitsu.com \
--cc=avi@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.