Messages in this thread | | | Date | Fri, 23 Apr 2010 21:21:48 +0800 | From | Xiao Guangrong <> | Subject | Re: [PATCH 4/10] KVM MMU: Move invlpg code out of paging_tmpl.h |
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Avi Kivity wrote: > On 04/23/2010 02:27 PM, Avi Kivity wrote: >> On 04/22/2010 09:12 AM, Xiao Guangrong wrote: >>> Using '!sp->role.cr4_pae' replaces 'PTTYPE == 32' and using >>> 'pte_size = sp->role.cr4_pae ? 8 : 4' replaces sizeof(pt_element_t) >>> >>> Then no need compile twice for this code >>> >> I think we should keep it in - kvm_mmu_pte_write() calls back to >> FNAME(update_pte), we could make the call directly from here speed >> things up, since we already have the spte and don't need to look it up. >> > > I see you do this in patches 9, 10 - but is it possible to use > update_pte directly? I think we'll need to make > guess_page_from_pte_write() part of paging_tmpl.h (in general anything > that depends on pte size is better off in paging_tmpl.h). >
OK, i'll keep invlpg code in paging_tmpl.h and directly call FNAME(update_pte).
But, i don't see mmu_guess_page_from_pte_write() code depends on pte size. :-(
Xiao
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