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Subject: Re: [virtio-comment] RE: [PATCH] content: reserve virtio device ID for QingTian Box devices
On Mon, Jan 03, 2022 at 01:50:17PM +0100, Cornelia Huck wrote: > On Mon, Jan 03 2022, "Longpeng (Mike, Cloud Infrastructure Service Product Dept.)" <longpeng2@huawei.com> wrote: > > >> -----Original Message----- > >> From: Cornelia Huck [mailto:cohuck@redhat.com] > >> Sent: Monday, January 3, 2022 7:30 PM > >> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.) > >> <longpeng2@huawei.com>; Michael S. Tsirkin <mst@redhat.com> > >> Cc: Gonglei (Arei) <arei.gonglei@huawei.com>; > >> virtio-comment@lists.oasis-open.org > >> Subject: Re: [virtio-comment] RE: [PATCH] content: reserve virtio device ID for > >> QingTian Box devices > >> > >> On Mon, Dec 27 2021, "Longpeng (Mike, Cloud Infrastructure Service Product > >> Dept.)" <longpeng2@huawei.com> wrote: > >> > >> >> -----Original Message----- > >> >> From: Michael S. Tsirkin [mailto:mst@redhat.com] > >> >> Sent: Monday, December 27, 2021 4:15 PM > >> >> To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.) > >> >> <longpeng2@huawei.com> > >> >> Cc: Gonglei (Arei) <arei.gonglei@huawei.com>; > >> >> virtio-comment@lists.oasis-open.org > >> >> Subject: Re: [PATCH] content: reserve virtio device ID for QingTian Box devices > >> >> > >> >> On Thu, Dec 23, 2021 at 02:49:25PM +0000, Longpeng (Mike, Cloud Infrastructure > >> >> Service Product Dept.) wrote: > >> >> > Hi Michael, > >> >> > > >> >> > Is there anything else I need to do to reserve the device id? > >> >> > >> >> OK, I see the issue was created. I think it makes sense to wait > >> >> until Jan 3 with the vote since lots of people are on > >> >> vacation. > >> >> > >> > > >> > Ok, thanks. > >> > > >> >> Meanwhile - are there plans to add this device to the spec eventually? > >> >> Can you share a bit more of what it does? > >> >> > >> > > >> > We want to carve out some resources (e.g. vcpu, mem, pci_dev) from the user's > >> > VM and then use these resources to start a sandbox for the user. The usage > >> > quite likes the software enclave which Nitro already supported, but we have > >> > much wider usage, for example, running unikernel + app (e.g. OSV + Redis) in > >> > the sandbox, it would provide much better performance than the traditional > >> > os. > >> > >> Sounds interesting. One question: Should this virtio device only support > >> a specific hypervisor, or could it support various hypervisors in > >> theory? (Via different commands or parameters.) In case of the latter, > >> it might be better to reserve an ID for a "sandbox device" or so. If the > >> design is too closely tied to your hypervisor, I'd be fine with > >> reserving the ID as proposed. > > > > We want to name the device as "virtio sandbox" originally, but consider that it > > would be much convenient to add new features (maybe tied to our hypervisor) in > > the future if we introduce a private device, so we decide to use "QingTian Box" > > at last. > > > > However, the sandbox function is not bound to a specific hypervisor, so it's free > > for the other guys to add something like "virtio sandbox". > > Yes, I guess this is a tradeoff between "device for a closely defined > environment that can be specified/changed easily" and "generic device > covering different environments that gets very complex". I do not have a > very good grasp of the problem space; if it is hard to make generic, I > have no objection to the specific device id. > > Anyone else have a comment? If not, we can go ahead and start a vote. I'd like to know whether there are plans to add the device to the spec? Driver to linux? -- MST
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