From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pierre Morel Subject: [PATCH v2 0/1] s390: virtio: let's arch choose to accept devices without IOMMU feature Date: Mon, 15 Jun 2020 14:39:23 +0200 Message-ID: <1592224764-1258-1-git-send-email-pmorel@linux.ibm.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org Cc: pasic@linux.ibm.com, borntraeger@de.ibm.com, frankja@linux.ibm.com, mst@redhat.com, jasowang@redhat.com, cohuck@redhat.com, kvm@vger.kernel.org, linux-s390@vger.kernel.org, virtualization@lists.linux-foundation.org List-Id: virtualization@lists.linuxfoundation.org An architecture protecting the guest memory against unauthorized host access may want to enforce VIRTIO I/O device protection through the use of VIRTIO_F_IOMMU_PLATFORM. Let's give a chance to the architecture to accept or not devices without VIRTIO_F_IOMMU_PLATFORM. Pierre Morel (1): s390: virtio: let arch accept devices without IOMMU feature arch/s390/mm/init.c | 6 ++++++ drivers/virtio/virtio.c | 9 +++++++++ include/linux/virtio.h | 2 ++ 3 files changed, 17 insertions(+) -- 2.25.1 Changelog to v2: - put the test in virtio_finalize_features() (Connie) - put the test inside VIRTIO core (Jason) - pass a virtio device as parameter (Halil)