Re: [Xen-ia64-devel] [PATCH][RFC] tlb insert tracking

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

This attached patch is also required to compile.

On Fri, Jul 14, 2006 at 03:47:23PM +0900, Isaku Yamahata wrote:
> 
> Hi all.
> This patch is for comment, review and evaluation. not for commit.
> This patch isn't completed yet.
> xen_ia64_tlb_track=y compile time option is added.
> 
> On VP model a page is removed from a domain, Xen/IA64 flushes vTLB
> to prevent a domain from accessing the removed page
> accidentaly or maliciously. However whole vTLB flush cost is very high.
> With this patch, Xen/IA64 tries to track tlb insertion of granted
> page. If Xen/IA64 tracks virtual address when a granted page is
> unmapped from a foreign page and, then xen/ia64 flushes only 
> one virtual address instead of whole vTLB flush.
> 
> thanks.
> -- 
> yamahata

-- 
yamahata

Attachment: 10743:07d24fb809cf_import_linux_hash.h.patch
Description: Text document

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