Re: [Xen-devel] Windows HVM no longer boots with AMD Ryzen 3700X (and 3900X)

[Steven Haigh <netwiz@xxxxxxxxx>]

On 2019-09-02 18:25, Steven Haigh wrote:
> On 2019-09-02 18:20, Paul Durrant wrote:
> > > -----Original Message-----
> > > From: Steven Haigh <netwiz@xxxxxxxxx>
> > > Sent: 02 September 2019 09:09
> > > To: Paul Durrant <Paul.Durrant@xxxxxxxxxx>
> > > Cc: Andreas Kinzler <hfp@xxxxxxxxx>; Andrew Cooper 
> > > <Andrew.Cooper3@xxxxxxxxxx>; xen-
> > > devel@xxxxxxxxxxxxxxxxxxxx
> > > Subject: Re: Windows HVM no longer boots with AMD Ryzen 3700X (and 
> > > 3900X)
> > > On 2019-09-02 18:04, Paul Durrant wrote:
> > > >> -----Original Message-----
> > > >> Further to the above, I did some experimentation. The following is a
> > > >> list of attempted boot configurations and their outcomes:
> > > >>
> > > >> viridian=1
> > > >> vcpus=4
> > > >> STOPCODE: HAL MEMORY ALLOCATION
> > > >>
> > > >> viridian=0
> > > >> vcpus=4
> > > >> STOPCODE: MULTIPROCESSOR_CONFIGURATION_NOT_SUPPORTED
> > > >>
> > > >> viridian=0
> > > >> vcpus=1
> > > >> Boot OK - get to Windows Server 2016 login etc
> > > >>
> > > >
> > > > And to complete the set, how about viridian=1 vcpus=1?
> > >
> > > Any vcpus value where viridian=1 is used creates a HAL MEMORY 
> > > ALLOCATION
> > > stopcode when trying to boot Windows.
> > Ok, so I guess that issue hits first and, only if you get beyond that
> > do you hit the multiprocessor problem.
> >
> > The viridian option is not actually a boolean any more (that
> > interpretation is just for compat) so it would be a good datapoint to
> > know which of the enlightenments causes the change in behaviour. Could
> > you try viridian=['base'] to see if that's sufficient to cause the
> > problem? (I'm guessing it probably is but it would be good to know).
>
> Hi Paul,
>
> I can confirm that viridian=['base'] crashes with the same HAL MEMORY
> ALLOCATION stopcode - even on 1 vcpu.
Also, just wondering, we're using 8.2.0 of the Windows PV drivers on 
this VM.
Does this matter? Has there been any changes that would affect this in 
8.2.1 or 8.2.2?
--
Steven Haigh

? netwiz@xxxxxxxxx     ? http://www.crc.id.au
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