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Re: [Xen-devel] [PATCH v4 06/13] x86/IOMMU: don't restrict IRQ affinities to online CPUs



> From: Jan Beulich [mailto:JBeulich@xxxxxxxx]
> Sent: Tuesday, July 16, 2019 3:41 PM
> 
> In line with "x86/IRQ: desc->affinity should strictly represent the
> requested value" the internally used IRQ(s) also shouldn't be restricted
> to online ones. Make set_desc_affinity() (set_msi_affinity() then does
> by implication) cope with a NULL mask being passed (just like
> assign_irq_vector() does), and have IOMMU code pass NULL instead of
> &cpu_online_map (when, for VT-d, there's no NUMA node information
> available).
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
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