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Date: Sun, 5 Jan 2020 05:42:49 -0500 From: "Michael S. Tsirkin" <mst@...hat.com> To: "Liu, Jiang" <gerry@...ux.alibaba.com> Cc: Jason Wang <jasowang@...hat.com>, Zha Bin <zhabin@...ux.alibaba.com>, linux-kernel@...r.kernel.org, slp@...hat.com, virtio-dev@...ts.oasis-open.org, jing2.liu@...el.com, chao.p.peng@...el.com Subject: Re: [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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