Re: [PATCH RFC v2 00/13] IOMMUFD Generic interface
On Fri, Sep 23, 2022 at 08:03:07AM -0600, Alex Williamson wrote:
On Fri, 23 Sep 2022 10:29:41 -0300
Jason Gunthorpe <jgg(a)nvidia.com> wrote:
> On Fri, Sep 23, 2022 at 09:54:48AM +0100, Daniel P. Berrangé wrote:
>
> > Yes, we use cgroups extensively already.
>
> Ok, I will try to see about this
>
> Can you also tell me if the selinux/seccomp will prevent qemu from
> opening more than one /dev/vfio/vfio ? I suppose the answer is no?
QEMU manages the container:group association with legacy vfio, so it
can't be restricted from creating multiple containers. Thanks,
.. and it absolutely will create multiple containers (i.e. open
/dev/vfio/vfio multiple times) if there are multiple guest-side vIOMMU
domains.
It can, however, open each /dev/vfio/NN group file only once each,
since they are exclusive access.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
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