Re: [Xen-devel] [PATCH] libxc: Add xc_domain_hvm_get_mtrr_type() call

[Tim Deegan <tim@xxxxxxx>]

At 21:35 +0200 on 19 Dec (1355952919), Razvan Cojocaru wrote:
> > result can be cached (since you can also get a mem-event on MSR writes,
> > you don't have to pull all this MTRR state out of the giuest except when
> > the MTRRs have been changed).
> 
> Unfortunately, due to the design of components I don't control, my
> application does not have the luxury of waiting for an MSR write event.

Hmm.  In that case I guess you can't cache the MTRR state between
lookups, which may be a performance problem for you.

> (Has my MSR mem_event patch been acknowledged? Or was this already work
> in progress? I had to patch my Xen source code to be able to get MSR
> events...)

I've replied to that separately. 

Cheers,

Tim.

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