Re: [Xen-devel] ioreq server regression

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: Boris Ostrovsky [mailto:boris.ostrovsky@xxxxxxxxxx]
> Sent: 12 December 2016 16:02
> To: Paul Durrant <Paul.Durrant@xxxxxxxxxx>; Jan Beulich
> <jbeulich@xxxxxxxx>; Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>;
> Juergen Gross <jgross@xxxxxxxx>; xen-devel <xen-devel@xxxxxxxxxxxxx>
> Cc: zhangchen.fnst@xxxxxxxxxxxxxx
> Subject: ioreq server regression
> 
> Looks like commit e7dabe59c ("x86/hvm: don't unconditionally create a
> default ioreq server") breaks restore for HVM guests.
> 
> I see "qemu: hardware error: Invalid ioreq type 0x53" in qemu log.
> 

Damn, yes that will be the case when migrating with legacy QEMU... we're going 
to need another flag that's set on the domain by the restore code so that the 
default server also gets created on restore.

  Paul

> -boris

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