Partial sync against Jean-Philippe's branch:
git://linux-arm.org/linux-jpb.git virtio-iommu/v0.5-dev
Signed-off-by: Eric Auger <eric.au...@redhat.com>
---
include/standard-headers/linux/virtio_ids.h | 1 +
include/standard-headers/linux/virtio_iommu.h | 195 ++++++++++++++++++++++++++
linux-headers/linux/virtio_iommu.h | 1 +
3 files changed, 197 insertions(+)
create mode 100644 include/standard-headers/linux/virtio_iommu.h
create mode 100644 linux-headers/linux/virtio_iommu.h
diff --git a/include/standard-headers/linux/virtio_ids.h
b/include/standard-headers/linux/virtio_ids.h
index 6d5c3b2..934ed3d 100644
--- a/include/standard-headers/linux/virtio_ids.h
+++ b/include/standard-headers/linux/virtio_ids.h
@@ -43,5 +43,6 @@
#define VIRTIO_ID_INPUT 18 /* virtio input */
#define VIRTIO_ID_VSOCK 19 /* virtio vsock transport */
#define VIRTIO_ID_CRYPTO 20 /* virtio crypto */
+#define VIRTIO_ID_IOMMU 61216 /* virtio IOMMU (temporary) */
#endif /* _LINUX_VIRTIO_IDS_H */
diff --git a/include/standard-headers/linux/virtio_iommu.h
b/include/standard-headers/linux/virtio_iommu.h
new file mode 100644
index 0000000..62944ed
--- /dev/null
+++ b/include/standard-headers/linux/virtio_iommu.h
@@ -0,0 +1,195 @@
+/*
+ * Virtio-iommu definition v0.5
+ *
+ * Copyright (C) 2017 ARM Ltd.
+ *
+ * This header is BSD licensed so anyone can use the definitions
+ * to implement compatible drivers/servers:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of ARM Ltd. nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IBM OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#ifndef _LINUX_VIRTIO_IOMMU_H
+#define _LINUX_VIRTIO_IOMMU_H
+
+/* Feature bits */
+#define VIRTIO_IOMMU_F_INPUT_RANGE 0
+#define VIRTIO_IOMMU_F_DOMAIN_BITS 1
+#define VIRTIO_IOMMU_F_MAP_UNMAP 2
+#define VIRTIO_IOMMU_F_BYPASS 3
+#define VIRTIO_IOMMU_F_PROBE 4
+
+struct virtio_iommu_config {
+ /* Supported page sizes */
+ uint64_t page_size_mask;
+ /* Supported IOVA range */
+ struct virtio_iommu_range {
+ uint64_t start;
+ uint64_t end;
+ } input_range;
+ /* Max domain ID size */
+ uint8_t domain_bits;
+ uint8_t padding[3];
+ /* Probe buffer size */
+ uint32_t probe_size;
+} QEMU_PACKED;
+
+/* Request types */
+#define VIRTIO_IOMMU_T_ATTACH 0x01
+#define VIRTIO_IOMMU_T_DETACH 0x02
+#define VIRTIO_IOMMU_T_MAP 0x03
+#define VIRTIO_IOMMU_T_UNMAP 0x04
+#define VIRTIO_IOMMU_T_PROBE 0x05
+
+/* Status types */
+#define VIRTIO_IOMMU_S_OK 0x00
+#define VIRTIO_IOMMU_S_IOERR 0x01
+#define VIRTIO_IOMMU_S_UNSUPP 0x02
+#define VIRTIO_IOMMU_S_DEVERR 0x03
+#define VIRTIO_IOMMU_S_INVAL 0x04
+#define VIRTIO_IOMMU_S_RANGE 0x05
+#define VIRTIO_IOMMU_S_NOENT 0x06
+#define VIRTIO_IOMMU_S_FAULT 0x07
+
+struct virtio_iommu_req_head {
+ uint8_t type;
+ uint8_t reserved[3];
+} QEMU_PACKED;
+
+struct virtio_iommu_req_tail {
+ uint8_t status;
+ uint8_t reserved[3];
+} QEMU_PACKED;
+
+struct virtio_iommu_req_attach {
+ struct virtio_iommu_req_head head;
+
+ uint32_t domain;
+ uint32_t endpoint;
+ uint32_t reserved;
+
+ struct virtio_iommu_req_tail tail;
+} QEMU_PACKED;
+
+struct virtio_iommu_req_detach {
+ struct virtio_iommu_req_head head;
+
+ uint32_t endpoint;
+ uint32_t reserved;
+
+ struct virtio_iommu_req_tail tail;
+} QEMU_PACKED;
+
+#define VIRTIO_IOMMU_MAP_F_READ (1 << 0)
+#define VIRTIO_IOMMU_MAP_F_WRITE (1 << 1)
+#define VIRTIO_IOMMU_MAP_F_EXEC (1 << 2)
+
+#define VIRTIO_IOMMU_MAP_F_MASK
(VIRTIO_IOMMU_MAP_F_READ | \
+ VIRTIO_IOMMU_MAP_F_WRITE |
\
+ VIRTIO_IOMMU_MAP_F_EXEC)
+
+struct virtio_iommu_req_map {
+ struct virtio_iommu_req_head head;
+
+ uint32_t domain;
+ uint64_t virt_addr;
+ uint64_t phys_addr;
+ uint64_t size;
+ uint32_t flags;
+
+ struct virtio_iommu_req_tail tail;
+} QEMU_PACKED;
+
+QEMU_PACKED
+struct virtio_iommu_req_unmap {
+ struct virtio_iommu_req_head head;
+
+ uint32_t domain;
+ uint64_t virt_addr;
+ uint64_t size;
+ uint32_t reserved;
+
+ struct virtio_iommu_req_tail tail;
+} QEMU_PACKED;
+
+#define VIRTIO_IOMMU_RESV_MEM_T_RESERVED 0
+#define VIRTIO_IOMMU_RESV_MEM_T_MSI 1
+
+struct virtio_iommu_probe_resv_mem {
+ uint8_t subtype;
+ uint8_t reserved[3];
+ uint64_t addr;
+ uint64_t size;
+} QEMU_PACKED;
+
+#define VIRTIO_IOMMU_PROBE_T_NONE 0
+#define VIRTIO_IOMMU_PROBE_T_RESV_MEM 1
+
+#define VIRTIO_IOMMU_PROBE_T_MASK 0xfff
+
+struct virtio_iommu_probe_property {
+ uint16_t type;
+ uint16_t length;
+ uint8_t value[];
+} QEMU_PACKED;
+
+struct virtio_iommu_req_probe {
+ struct virtio_iommu_req_head head;
+ uint32_t endpoint;
+ uint8_t reserved[64];
+
+ uint8_t properties[];
+
+ /* Tail follows the variable-length properties array (no padding) */
+} QEMU_PACKED;
+
+union virtio_iommu_req {
+ struct virtio_iommu_req_head head;
+
+ struct virtio_iommu_req_attach attach;
+ struct virtio_iommu_req_detach detach;
+ struct virtio_iommu_req_map map;
+ struct virtio_iommu_req_unmap unmap;
+ struct virtio_iommu_req_probe probe;
+};
+
+/* Fault types */
+#define VIRTIO_IOMMU_FAULT_R_UNKNOWN 0
+#define VIRTIO_IOMMU_FAULT_R_DOMAIN 1
+#define VIRTIO_IOMMU_FAULT_R_MAPPING 2
+
+#define VIRTIO_IOMMU_FAULT_F_READ (1 << 0)
+#define VIRTIO_IOMMU_FAULT_F_WRITE (1 << 1)
+#define VIRTIO_IOMMU_FAULT_F_EXEC (1 << 2)
+#define VIRTIO_IOMMU_FAULT_F_ADDRESS (1 << 8)
+
+struct virtio_iommu_fault {
+ uint8_t reason;
+ uint8_t padding[3];
+ uint32_t flags;
+ uint32_t endpoint;
+ uint64_t address;
+} QEMU_PACKED;
+
+#endif
diff --git a/linux-headers/linux/virtio_iommu.h
b/linux-headers/linux/virtio_iommu.h
new file mode 100644
index 0000000..2dc4609
--- /dev/null
+++ b/linux-headers/linux/virtio_iommu.h
@@ -0,0 +1 @@
+#include "standard-headers/linux/virtio_iommu.h"
--
1.9.1
