Re: [PATCH v4 22/28] iommu/arm-smmu-v3-kvm: Emulate CMDQ for host

Will Deacon
2025-09-18T10:26:57Z

On Wed, Sep 17, 2025 at 12:59:31PM -0300, Jason Gunthorpe wrote:
> On Wed, Sep 17, 2025 at 04:25:35PM +0100, Will Deacon wrote:
>
> > Ah right, so the driver would unnecessarily issue CMOs for the structures
> > that are just shared with the hypervisor. At least it's _functional_ that
> > way, but I'm sure people will complain!
>
> Yes, functional, why would anyone complain? STE and CD manipulation is
> not fast path for anything?

Won't it also apply to cmdq insertion?

Will