From 22c37a10f3e1de1b19aa8281bc368d8cea960f4c Mon Sep 17 00:00:00 2001 From: Eric Auger Date: Fri, 14 Feb 2020 14:27:36 +0100 Subject: virtio-iommu: Add skeleton This patchs adds the skeleton for the virtio-iommu device. Signed-off-by: Eric Auger Reviewed-by: Peter Xu Reviewed-by: Michael S. Tsirkin Message-Id: <20200214132745.23392-2-eric.auger@redhat.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- include/hw/virtio/virtio-iommu.h | 57 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 include/hw/virtio/virtio-iommu.h (limited to 'include') diff --git a/include/hw/virtio/virtio-iommu.h b/include/hw/virtio/virtio-iommu.h new file mode 100644 index 0000000..d24ba63 --- /dev/null +++ b/include/hw/virtio/virtio-iommu.h @@ -0,0 +1,57 @@ +/* + * virtio-iommu device + * + * Copyright (c) 2020 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + * + */ + +#ifndef QEMU_VIRTIO_IOMMU_H +#define QEMU_VIRTIO_IOMMU_H + +#include "standard-headers/linux/virtio_iommu.h" +#include "hw/virtio/virtio.h" +#include "hw/pci/pci.h" + +#define TYPE_VIRTIO_IOMMU "virtio-iommu-device" +#define VIRTIO_IOMMU(obj) \ + OBJECT_CHECK(VirtIOIOMMU, (obj), TYPE_VIRTIO_IOMMU) + +typedef struct IOMMUDevice { + void *viommu; + PCIBus *bus; + int devfn; + IOMMUMemoryRegion iommu_mr; + AddressSpace as; +} IOMMUDevice; + +typedef struct IOMMUPciBus { + PCIBus *bus; + IOMMUDevice *pbdev[0]; /* Parent array is sparse, so dynamically alloc */ +} IOMMUPciBus; + +typedef struct VirtIOIOMMU { + VirtIODevice parent_obj; + VirtQueue *req_vq; + VirtQueue *event_vq; + struct virtio_iommu_config config; + uint64_t features; + GHashTable *as_by_busptr; + PCIBus *primary_bus; + GTree *domains; + QemuMutex mutex; + GTree *endpoints; +} VirtIOIOMMU; + +#endif -- cgit v1.1