[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [PATCH v1 1/7] xen-block: Do not write frontend nodes
On 11 November 2023 16:51:22 GMT-05:00, Andrew Cooper <andrew.cooper3@xxxxxxxxxx> wrote: >On 11/11/2023 8:18 pm, David Woodhouse wrote: >> On 11 November 2023 08:43:40 GMT-05:00, Andrew Cooper >> <andrew.cooper3@xxxxxxxxxx> wrote: >>> Furthermore, the control domain doesn't always have the domid of 0. >>> >>> If qemu wants/needs to make changes like this, the control domain has to >>> arrange for qemu's domain to have appropriate permissions on the nodes. >> Right. And that's simple enough: if you are running QEMU in a domain which >> doesn't have permission to create the backend directory and/or the frontend >> nodes, don't ask it to *create* devices. In that case it is only able to >> connect as the backend for devices which were created *for* it by the >> toolstack. >> >> The criterion used in this patch series should be "did QEMU create this >> device, or discover it". >> > >Yeah, that sounds like the right approach. I think we want to kill the xen_backend_set_device() function and instead set the backend as a property of the XenDevice *before* realizing it.
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