From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: Re: [PATCH v6 08/18] iommu/vt-d: Implement reserved region get/put callbacks Date: Fri, 6 Jan 2017 12:01:31 +0100 Message-ID: <20170106110131.GM17255@8bytes.org> References: <1483643086-2883-1-git-send-email-eric.auger@redhat.com> <1483643086-2883-9-git-send-email-eric.auger@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: drjones-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org, kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, marc.zyngier-5wv7dgnIgG8@public.gmane.org, punit.agrawal-5wv7dgnIgG8@public.gmane.org, will.deacon-5wv7dgnIgG8@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, geethasowjanya.akula-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, pranav.sawargaonkar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, shankerd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org, gpkulkarni-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, christoffer.dall-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, eric.auger.pro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org To: Eric Auger Return-path: Content-Disposition: inline In-Reply-To: <1483643086-2883-9-git-send-email-eric.auger-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org List-Id: kvm.vger.kernel.org On Thu, Jan 05, 2017 at 07:04:36PM +0000, Eric Auger wrote: > +static void intel_iommu_get_resv_regions(struct device *device, > + struct list_head *head) > +{ > + struct iommu_resv_region *reg; > + > + reg = iommu_alloc_resv_region(IOAPIC_RANGE_START, > + IOAPIC_RANGE_END - IOAPIC_RANGE_START + 1, > + 0, IOMMU_RESV_NOMAP); > + if (!reg) > + return; > + list_add_tail(®->list, head); > +} That is different from what AMD does, can you also report the RMRR regions for the device here (as direct-map regions)? Joerg