Messages in this thread | | | Date | Fri, 20 Sep 2019 18:32:34 +0200 | From | Jean-Philippe Brucker <> | Subject | Re: [PATCH 1/4] iommu: Introduce cache_invalidate API |
| |
On Wed, Sep 18, 2019 at 04:26:31PM -0700, Jacob Pan wrote: > From: Yi L Liu <yi.l.liu@intel.com> > > In any virtualization use case, when the first translation stage > is "owned" by the guest OS, the host IOMMU driver has no knowledge > of caching structure updates unless the guest invalidation activities > are trapped by the virtualizer and passed down to the host. > > Since the invalidation data can be obtained from user space and will be > written into physical IOMMU, we must allow security check at various > layers. Therefore, generic invalidation data format are proposed here, > model specific IOMMU drivers need to convert them into their own format. > > Signed-off-by: Yi L Liu <yi.l.liu@intel.com> > Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> > Signed-off-by: Ashok Raj <ashok.raj@intel.com> > Signed-off-by: Eric Auger <eric.auger@redhat.com> > Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
I tried to take a fresh look at this and didn't see anything problematic, though I might have been the last one to edit it. Anyway:
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
| |