Re: [Xen-devel] [PATCH RESEND qemu-xen-traditional] xen/pt: allow QEMU to request MSI unmasking at bind time

[Pasi Kärkkäinen <pasik@xxxxxx>]

Hi,

On Wed, Oct 24, 2018 at 04:20:35PM +0100, Ian Jackson wrote:
> Andra Paraschiv writes ("[PATCH RESEND qemu-xen-traditional] xen/pt: allow 
> QEMU to request MSI unmasking at bind time"):
> > When a MSI interrupt is bound to a guest using
> > xc_domain_update_msi_irq (XEN_DOMCTL_bind_pt_irq) the interrupt is
> > left masked by default.
> 
> Applied, and pushed the corresponding update to QEMU_TAG in
> qemu-xen-unstable.
> 
> Does this patch need to be backported to earlier Xen releases ?  It
> wasn't clear to me whether there is new Xen code in this area without
> which the problem (which the patch solves) does not arise; or whether,
> conversely, simply running a new guest is sufficient.
> 

Good question. In the earlier thread about this patch it was mentioned
the bug happens with latest stable version of Xen, which sounds like 
this patch should be backported to stable Xen versions. Is that correct?


Thanks,

-- Pasi

> Regards,
> Ian.
> 

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