Re: [Xen-devel] PCI hole resize support for 4.5? If not, workaround?

[Steve Freitas <sflist@xxxxxxxxx>]

On 10/20/2014 6:06, Don Slutz wrote:
> On 10/18/14 02:17, Steve Freitas wrote:
> > Hi all,
> >
> > I'm suffering from bug 28 [1], unable to assign more than 3.5 gigs of 
> > RAM to my Windows VM while using VGA passthrough. This is a 
> > showstopper for me.
> > Since #28 is still listed as up for grabs for 4.5 [2], I assume a fix 
> > is not likely to make it in. However, a message from Ian [3] 
> > indicated that a workaround was available at some point. Will a 
> > workaround be offered for 4.4 or 4.5?
> Adding the patch:
>
> http://lists.xenproject.org/archives/html/xen-devel/2014-10/msg01447.html
>
> to 4.5-unstable
>
> and adding
>
> mmio_hole_size = 536870912
>
> to your .xfg should allow you to use more memory (the number above
> is .5 gig, which should work based on 3.5 gigs working).
Hi Don!

Thanks for your reply and the patch, my searches didn't turn up your 
post. Any idea if I'll run into trouble trying to apply this to 4.4.1? 
I'd like to stick with (minimally modified) distro packages if possible, 
and Debian Jessie is on 4.4.1. And any feeling for whether this will 
make it into 4.5? Sure would be nice to see this problem fixed for good.
Thanks again.

Steve


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