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SubjectRe: [PATCH v1 2/2] virtio-mmio: add features for virtio-mmio specification version 3
On Thu, Dec 26, 2019 at 09:16:19PM +0800, Liu, Jiang wrote:
> > 2) The mask and unmask control is missed
> >
> >
> >> but the extension doesn’t support 3) because
> >> we noticed that the Linux virtio subsystem doesn’t really make use of interrupt masking/unmasking.

Linux uses masking/unmasking in order to migrate interrupts between
CPUs.

--
MST

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