RE: [Xen-devel] [PATCH] VT-d: prevent dom0 to use VT-d HW

["Kay, Allen M" <allen.m.kay@xxxxxxxxx>]

The patch is for xen source tree, not pv-ops tree.

-----Original Message-----
From: Jeremy Fitzhardinge [mailto:jeremy@xxxxxxxx] 
Sent: Wednesday, September 09, 2009 3:32 PM
To: Han, Weidong
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; Kay, Allen M; 'Keir.Fraser@xxxxxxxxxxxxx'
Subject: Re: [Xen-devel] [PATCH] VT-d: prevent dom0 to use VT-d HW

On 09/07/09 19:24, Han, Weidong wrote:
> pv-ops dom0 contains Linux upstream VT-d driver, and will go to enable it 
> when VT-d is set in kernel config file. It should not enable VT-d in dom0.
>
> Currently it already zaps ACPI DMAR signature to prevents dom0 using VT-d HW 
> when VT-d is enabled for Xen. But when VT-d is not enabled for Xen, and VT-d 
> is set in pv-ops kernel config file, pv-ops dom0 will go to enable it. This 
> will results in pv-ops dom0 booting failure. This patch prevents dom0 to use 
> VT-d HW whether VT-d is enabled or disabled for Xen. 
>   

Which tree is this against?  My dom0 tree doesn't have
drivers/passthrough/vtd/.  Is there a branch you'd like me to pull in?

Thanks,
    J

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