Re: [Xen-devel] RFC: [0/2] Remove netloop by lazy copying in netback

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

On Wed, Mar 28, 2007 at 11:05:16PM +1000, Herbert Xu wrote:
> On Wed, Mar 28, 2007 at 06:46:40AM +1000, Herbert Xu wrote:
> > 
> > I've checked again and the accessed bit is certainly present on ppc
> > as well as ia64.  The only I don't know is if it's present on the
> > nested page tables on ia64 but I see no reasons why it wouldn't be.
> 
> Here is a completely untested patch that demonstrates how this could
> be done on x86.

Xen/IA64 needs more than accessed bit for the optimized tlb flush
so that destroy_grant_host_mapping() flushes tlb and
it doesn't set any bit of domain_dirty_cpumask.
Can we make flush_tlb_mask() arch dependent and 
record something like GNTST_unuse in struct arch_vcpu?
-- 
yamahata

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel