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

[Andreas Kinzler <hfp@xxxxxxxxx>]

On 20.08.2019 20:12, Andrew Cooper wrote:
> > Xen version 4.10.2. dom0 kernel 4.13.16. The BIOS version is unchanged
> > from 2700X (working) to 3700X (crashing).
> So you've done a Zen v1 => Zen v2 CPU upgrade and an existing system?
With "existing system" you mean the Windows installation? Yes, but it is 
not relevant. The same BSODs happen if you boot the HVM with just the 
iso installation medium and no disks.
> > Is it a known problem? Did someone test the new EPYCs?
> This looks familiar, and is still somewhere on my TODO list.
Do you already know the reason or is that still to investigate?

> Does booting with a single vCPU work?
Number of vCPUs make no difference

Regards Andreas

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