On Wed, Mar 12, 2025 at 04:15:10PM +0100, Eric Auger wrote: > On 3/11/25 3:10 PM, Shameer Kolothum wrote: > > Based on SMMUv3 as a parent device, add a user-creatable smmuv3-accel > > device. In order to support vfio-pci dev assignment with a Guest > guest > > SMMUv3, the physical SMMUv3 has to be configured in nested(S1+s2) > nested (s1+s2) > > mode, with Guest owning the S1 page tables. Subsequent patches will > the guest > > add support for smmuv3-accel to provide this. > > Can't this -accel smmu also works with emulated devices? Do we want an > exclusive usage?
Is there any benefit from emulated devices working in the HW- accelerated nested translation mode? Thanks Nicolin
