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Re: [PATCH 5/6] KVM: MMU: prefetch ptes when intercepted guest #PF

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From: Avi Kivity
Subject: Re: [PATCH 5/6] KVM: MMU: prefetch ptes when intercepted guest #PF
Date: Thursday, June 17, 2010 - 2:20 am

On 06/17/2010 12:04 PM, Xiao Guangrong wrote:

Right now if the fault is in spte i, you prefetch ptes 
(i+1)..(i+MAX_PREFETCH-1).  I'd like to prefetch ptes (i & 
~(MAX_PREFETCH-1))..(i | (MAX_PREFETCH - 1)).  Read all those gptes, and 
map them one by one with speculative = false only for spte i.

Perhaps we need to integrate it into walk_addr, there's  no reason to 
read the gptes twice.


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

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Messages in current thread:
[PATCH 5/6] KVM: MMU: prefetch ptes when intercepted guest #PF, Xiao Guangrong, (Mon Jun 14, 7:47 pm)
Re: [PATCH 5/6] KVM: MMU: prefetch ptes when intercepted g ..., Avi Kivity, (Tue Jun 15, 4:41 am)
Re: [PATCH 5/6] KVM: MMU: prefetch ptes when intercepted g ..., Marcelo Tosatti, (Tue Jun 15, 8:55 pm)
Re: [PATCH 5/6] KVM: MMU: prefetch ptes when intercepted g ..., Xiao Guangrong, (Thu Jun 17, 12:25 am)
Re: [PATCH 5/6] KVM: MMU: prefetch ptes when intercepted g ..., Avi Kivity, (Thu Jun 17, 1:07 am)
Re: [PATCH 5/6] KVM: MMU: prefetch ptes when intercepted g ..., Xiao Guangrong, (Thu Jun 17, 2:04 am)
Re: [PATCH 5/6] KVM: MMU: prefetch ptes when intercepted g ..., Avi Kivity, (Thu Jun 17, 2:20 am)
Re: [PATCH 5/6] KVM: MMU: prefetch ptes when intercepted g ..., Xiao Guangrong, (Thu Jun 17, 2:29 am)