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From: Avi Kivity <avi@qumranet.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Andrea Arcangeli <andrea@qumranet.com>, kvm@vger.kernel.org
Subject: Re: [patch 02/13] KVM: MMU: switch to get_user_pages_fast
Date: Tue, 09 Sep 2008 16:57:52 +0300	[thread overview]
Message-ID: <48C680E0.1070605@qumranet.com> (raw)
In-Reply-To: <20080909122138.GB14858@duo.random>

Andrea Arcangeli wrote:
> On Sun, Sep 07, 2008 at 11:45:41AM +0300, Avi Kivity wrote:
>   
>> Marcelo Tosatti wrote:
>>     
>>> Avoid mmap_sem / pt lock acquision if the pagetables are present. The
>>> improvement for hugepage backed guests is more significant, since pte
>>> walk + page grab for such mappings is serialized by mm->page_table_lock.
>>>
>>> CC: Andrea Arcangeli <andrea@qumranet.com>
>>>
>>>   
>>>       
>> I'd like to apply this.  Andrea, can you verify that mmu notifiers 
>> interaction is okay?
>>     
>
> Looks great to me. Thanks!
>   

Thanks.

Marcelo, can you split the patch into two and repost?  We can get this 
in quickly.

-- 
error compiling committee.c: too many arguments to function


  reply	other threads:[~2008-09-09 13:57 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-06 18:48 [patch 00/13] RFC: out of sync shadow Marcelo Tosatti
2008-09-06 18:48 ` [patch 01/13] x86/mm: get_user_pages_fast_atomic Marcelo Tosatti
2008-09-07  8:42   ` Avi Kivity
2008-09-08  6:10     ` Marcelo Tosatti
2008-09-08 14:20       ` Avi Kivity
2008-09-06 18:48 ` [patch 02/13] KVM: MMU: switch to get_user_pages_fast Marcelo Tosatti
2008-09-07  8:45   ` Avi Kivity
2008-09-07 20:44     ` Marcelo Tosatti
2008-09-08 14:53       ` Avi Kivity
2008-09-09 12:21     ` Andrea Arcangeli
2008-09-09 13:57       ` Avi Kivity [this message]
2008-09-06 18:48 ` [patch 03/13] KVM: MMU: gfn_to_page_atomic Marcelo Tosatti
2008-09-06 18:48 ` [patch 04/13] KVM: MMU: switch prefetch_page to gfn_to_page_atomic Marcelo Tosatti
2008-09-06 18:48 ` [patch 05/13] KVM: MMU: do not write-protect large mappings Marcelo Tosatti
2008-09-07  9:04   ` Avi Kivity
2008-09-07 20:54     ` Marcelo Tosatti
2008-09-06 18:48 ` [patch 06/13] KVM: MMU: global page keeping Marcelo Tosatti
2008-09-07  9:16   ` Avi Kivity
2008-09-06 18:48 ` [patch 07/13] KVM: MMU: mode specific sync_page Marcelo Tosatti
2008-09-07  9:52   ` Avi Kivity
2008-09-08  6:03     ` Marcelo Tosatti
2008-09-08  9:50       ` Avi Kivity
2008-09-06 18:48 ` [patch 08/13] KVM: MMU: record guest root level on struct guest_walker Marcelo Tosatti
2008-09-06 18:48 ` [patch 09/13] KVM: MMU: out of sync shadow core Marcelo Tosatti
2008-09-07 11:01   ` Avi Kivity
2008-09-08  7:19     ` Marcelo Tosatti
2008-09-08 14:51       ` Avi Kivity
2008-09-11  8:19         ` Marcelo Tosatti
2008-09-11 13:15     ` Marcelo Tosatti
2008-09-06 18:48 ` [patch 10/13] KVM: MMU: sync roots on mmu reload Marcelo Tosatti
2008-09-06 18:48 ` [patch 11/13] KVM: MMU: sync global pages on cr0/cr4 writes Marcelo Tosatti
2008-09-06 18:48 ` [patch 12/13] KVM: x86: trap invlpg Marcelo Tosatti
2008-09-07 11:14   ` Avi Kivity
2008-09-06 18:48 ` [patch 13/13] KVM: MMU: ignore multiroot when unsyncing global pages Marcelo Tosatti
2008-09-07 11:22 ` [patch 00/13] RFC: out of sync shadow Avi Kivity
2008-09-08  7:23   ` Marcelo Tosatti
2008-09-08 14:56     ` Avi Kivity
2008-09-12  4:05 ` David S. Ahern
2008-09-12 11:51   ` Marcelo Tosatti
2008-09-12 15:12     ` David S. Ahern
2008-09-12 18:09       ` Marcelo Tosatti
2008-09-12 18:19         ` David S. Ahern

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