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Re: [Xen-devel] [PATCH 2/2] pvh: set only minimal cr0 and cr4 flags in order to use paging

On Mon, 25 Nov 2013 14:53:51 +0000
George Dunlap <george.dunlap@xxxxxxxxxxxxx> wrote:

> On 11/25/2013 01:25 PM, Jan Beulich wrote:
> >>>> On 19.11.13 at 13:34, Roger Pau Monne <roger.pau@xxxxxxxxxx>
> >>>> wrote:
> >> Right now Xen sets the WP and NE flags on cr0 for PVH, which are
> >> not needed in order to boot with paging enabled. The same happens
> >> with cr4, at least on my system OSFXSR, OSXMMEXCPT and MCE are
> >> enabled by default when there's no need.
> >>
> >> Signed-off-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx>
> > So I'm still having this patch sitting in my queue, and I don't
> > think I've seen an ack from the VMX maintainers or the main PVH
> > contributors. At least one of the two I'd like to have in place
> > before applying.
> This sounds like a good idea to me, but I don't feel like I have a
> firm enough grasp to give a reviewed-by; so:
> Acked-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>


Acked-by: Mukesh Rathor <mukesh.rathor@xxxxxxxxxx>


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