--- /dev/null
- virtio_init_pci(proxy, vdev,
- PCI_VENDOR_ID_REDHAT_QUMRANET,
- 0x1009,
- 0x2,
- 0x00);
+ /*
+ * Virtio 9p backend
+ *
+ * Copyright IBM, Corp. 2010
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+ #include "hw/virtio.h"
+ #include "hw/pc.h"
+ #include "qemu_socket.h"
+ #include "hw/virtio-pci.h"
+ #include "virtio-9p.h"
+ #include "fsdev/qemu-fsdev.h"
+ #include "virtio-9p-xattr.h"
+
+ static uint32_t virtio_9p_get_features(VirtIODevice *vdev, uint32_t features)
+ {
+ features |= 1 << VIRTIO_9P_MOUNT_TAG;
+ return features;
+ }
+
+ static V9fsState *to_virtio_9p(VirtIODevice *vdev)
+ {
+ return (V9fsState *)vdev;
+ }
+
+ static void virtio_9p_get_config(VirtIODevice *vdev, uint8_t *config)
+ {
+ struct virtio_9p_config *cfg;
+ V9fsState *s = to_virtio_9p(vdev);
+
+ cfg = qemu_mallocz(sizeof(struct virtio_9p_config) +
+ s->tag_len);
+ stw_raw(&cfg->tag_len, s->tag_len);
+ memcpy(cfg->tag, s->tag, s->tag_len);
+ memcpy(config, cfg, s->config_size);
+ qemu_free(cfg);
+ }
+
+ VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf)
+ {
+ V9fsState *s;
+ int i, len;
+ struct stat stat;
+ FsTypeEntry *fse;
+
+
+ s = (V9fsState *)virtio_common_init("virtio-9p",
+ VIRTIO_ID_9P,
+ sizeof(struct virtio_9p_config)+
+ MAX_TAG_LEN,
+ sizeof(V9fsState));
+
+ /* initialize pdu allocator */
+ QLIST_INIT(&s->free_list);
+ for (i = 0; i < (MAX_REQ - 1); i++) {
+ QLIST_INSERT_HEAD(&s->free_list, &s->pdus[i], next);
+ }
+
+ s->vq = virtio_add_queue(&s->vdev, MAX_REQ, handle_9p_output);
+
+ fse = get_fsdev_fsentry(conf->fsdev_id);
+
+ if (!fse) {
+ /* We don't have a fsdev identified by fsdev_id */
+ fprintf(stderr, "Virtio-9p device couldn't find fsdev with the "
+ "id = %s\n", conf->fsdev_id ? conf->fsdev_id : "NULL");
+ exit(1);
+ }
+
+ if (!fse->path || !conf->tag) {
+ /* we haven't specified a mount_tag or the path */
+ fprintf(stderr, "fsdev with id %s needs path "
+ "and Virtio-9p device needs mount_tag arguments\n",
+ conf->fsdev_id);
+ exit(1);
+ }
+
+ if (!strcmp(fse->security_model, "passthrough")) {
+ /* Files on the Fileserver set to client user credentials */
+ s->ctx.fs_sm = SM_PASSTHROUGH;
+ s->ctx.xops = passthrough_xattr_ops;
+ } else if (!strcmp(fse->security_model, "mapped")) {
+ /* Files on the fileserver are set to QEMU credentials.
+ * Client user credentials are saved in extended attributes.
+ */
+ s->ctx.fs_sm = SM_MAPPED;
+ s->ctx.xops = mapped_xattr_ops;
+ } else if (!strcmp(fse->security_model, "none")) {
+ /*
+ * Files on the fileserver are set to QEMU credentials.
+ */
+ s->ctx.fs_sm = SM_NONE;
+ s->ctx.xops = none_xattr_ops;
+ } else {
+ fprintf(stderr, "Default to security_model=none. You may want"
+ " enable advanced security model using "
+ "security option:\n\t security_model=passthrough\n\t "
+ "security_model=mapped\n");
+ s->ctx.fs_sm = SM_NONE;
+ s->ctx.xops = none_xattr_ops;
+ }
+
+ if (lstat(fse->path, &stat)) {
+ fprintf(stderr, "share path %s does not exist\n", fse->path);
+ exit(1);
+ } else if (!S_ISDIR(stat.st_mode)) {
+ fprintf(stderr, "share path %s is not a directory\n", fse->path);
+ exit(1);
+ }
+
+ s->ctx.fs_root = qemu_strdup(fse->path);
+ len = strlen(conf->tag);
+ if (len > MAX_TAG_LEN) {
+ len = MAX_TAG_LEN;
+ }
+ /* s->tag is non-NULL terminated string */
+ s->tag = qemu_malloc(len);
+ memcpy(s->tag, conf->tag, len);
+ s->tag_len = len;
+ s->ctx.uid = -1;
+
+ s->ops = fse->ops;
+ s->vdev.get_features = virtio_9p_get_features;
+ s->config_size = sizeof(struct virtio_9p_config) +
+ s->tag_len;
+ s->vdev.get_config = virtio_9p_get_config;
+
+ return &s->vdev;
+ }
+
+ static int virtio_9p_init_pci(PCIDevice *pci_dev)
+ {
+ VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
+ VirtIODevice *vdev;
+
+ vdev = virtio_9p_init(&pci_dev->qdev, &proxy->fsconf);
+ vdev->nvectors = proxy->nvectors;
++ virtio_init_pci(proxy, vdev);
+ /* make the actual value visible */
+ proxy->nvectors = vdev->nvectors;
+ return 0;
+ }
+
+ static PCIDeviceInfo virtio_9p_info = {
+ .qdev.name = "virtio-9p-pci",
+ .qdev.size = sizeof(VirtIOPCIProxy),
+ .init = virtio_9p_init_pci,
++ .vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET,
++ .device_id = 0x1009,
++ .revision = VIRTIO_PCI_ABI_VERSION,
++ .class_id = 0x2,
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
+ DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
+ DEFINE_PROP_STRING("mount_tag", VirtIOPCIProxy, fsconf.tag),
+ DEFINE_PROP_STRING("fsdev", VirtIOPCIProxy, fsconf.fsdev_id),
+ DEFINE_PROP_END_OF_LIST(),
+ }
+ };
+
+ static void virtio_9p_register_devices(void)
+ {
+ pci_qdev_register(&virtio_9p_info);
+ }
+
+ device_init(virtio_9p_register_devices)
--- /dev/null
-extern void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev,
- uint16_t vendor, uint16_t device,
- uint16_t class_code, uint8_t pif);
+ /*
+ * Virtio PCI Bindings
+ *
+ * Copyright IBM, Corp. 2007
+ * Copyright (c) 2009 CodeSourcery
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ * Paul Brook <paul@codesourcery.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ */
+
+ #ifndef QEMU_VIRTIO_PCI_H
+ #define QEMU_VIRTIO_PCI_H
+
+ #include "virtio-net.h"
+ #include "virtio-serial.h"
+
+ typedef struct {
+ PCIDevice pci_dev;
+ VirtIODevice *vdev;
+ uint32_t flags;
+ uint32_t addr;
+ uint32_t class_code;
+ uint32_t nvectors;
+ BlockConf block;
+ NICConf nic;
+ uint32_t host_features;
+ #ifdef CONFIG_LINUX
+ V9fsConf fsconf;
+ #endif
+ virtio_serial_conf serial;
+ virtio_net_conf net;
+ bool ioeventfd_disabled;
+ bool ioeventfd_started;
+ } VirtIOPCIProxy;
+
++void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev);
++
++/* Virtio ABI version, if we increment this, we break the guest driver. */
++#define VIRTIO_PCI_ABI_VERSION 0
++
+ #endif