Re: [PATCH v3 1/2] acpi:iort: Add an IORT helper function to reserve HW ITS address regions for IOMMU drivers

2017-07-04 Thread Lorenzo Pieralisi
On Mon, Jul 03, 2017 at 08:18:45AM +, Shameerali Kolothum Thodi wrote: > > > > -Original Message- > > From: Lorenzo Pieralisi [mailto:lorenzo.pieral...@arm.com] > > Sent: Friday, June 23, 2017 5:54 PM > > To: Shameerali Kolothum Thodi > > Cc: marc.zyng...@arm.com;

RE: [PATCH v3 1/2] acpi:iort: Add an IORT helper function to reserve HW ITS address regions for IOMMU drivers

2017-07-03 Thread Shameerali Kolothum Thodi
> -Original Message- > From: Lorenzo Pieralisi [mailto:lorenzo.pieral...@arm.com] > Sent: Friday, June 23, 2017 5:54 PM > To: Shameerali Kolothum Thodi > Cc: marc.zyng...@arm.com; sudeep.ho...@arm.com; will.dea...@arm.com; > robin.mur...@arm.com; hanjun@linaro.org; Gabriele Paoloni;

Re: [PATCH v3 1/2] acpi:iort: Add an IORT helper function to reserve HW ITS address regions for IOMMU drivers

2017-06-23 Thread Lorenzo Pieralisi
On Fri, Jun 23, 2017 at 03:58:00PM +0100, shameer wrote: > The helper function retrieves ITS address regions through IORT > device <-> ITS mappings and reserves it so that these regions > will not be translated by IOMMU and will be excluded from IOVA > allocations. IOMMU drivers can use this to