Re: [Xen-devel] [PATCH resend] vt-d: Fix IM bit mask and unmask of Fault Event Control Register.

["Xu, Quan" <quan.xu@xxxxxxxxx>]

> -----Original Message-----
> From: Wei Liu [mailto:wei.liu2@xxxxxxxxxx]
> Sent: Friday, September 25, 2015 6:55 PM
> To: Jan Beulich
> Cc: Wei Liu; Xu, Quan; Tian, Kevin; Zhang, Yang Z; xen-devel@xxxxxxxxxxxxx
> Subject: Re: [Xen-devel] [PATCH resend] vt-d: Fix IM bit mask and unmask of
> Fault Event Control Register.
> 
> On Fri, Sep 25, 2015 at 01:16:38AM -0600, Jan Beulich wrote:
> > >>> On 25.09.15 at 04:29, <quan.xu@xxxxxxxxx> wrote:
> > > Bit 0:29 in Fault Event Control Register are 'Reserved and
> > > Preserved', software cannot write 0 to it unconditionally. Software
> > > must preserve the value read for writes.
> > >
> > > Signed-off-by: Quan Xu <quan.xu@xxxxxxxxx>
> > > Acked-by: Yang Zhang <yang.z.zhang@xxxxxxxxx>
> >
> > I think this should also be applied to 4.6 (after RC4 got tagged).
> >
> 
> Release-acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> 
Wei, thanks..

> I expect there to be another patch to adjust init_vtd_hw() as well. I will 
> look at
> that separately.

Kevin and Yang are out of office from 9.26 to 10.7..
Maybe Jan Beulich can ack it.

-Quan

> 
> Wei.
> 
> > Jan

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