Re: [PATCH RFC v2 00/13] IOMMUFD Generic interface
On Fri, Sep 23, 2022 at 02:35:20PM +0100, Daniel P. Berrangé wrote:
On Fri, Sep 23, 2022 at 10:29:41AM -0300, Jason Gunthorpe 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?
I don't believe there's any restriction on the nubmer of open attempts,
its just a case of allowed or denied globally for the VM.
Ok
For iommufd we plan to have qemu accept a single already opened FD of
/dev/iommu and so the selinux/etc would block all access to the
chardev.
Can you tell me if the thing invoking qmeu that will open /dev/iommu
will have CAP_SYS_RESOURCE ? I assume yes if it is already touching
ulimits..
Jason