From: KONRAD Frederic <fred.kon...@greensocs.com> Create virtio-9p which extends virtio-device, so it can be connected on virtio-bus.
Signed-off-by: KONRAD Frederic <fred.kon...@greensocs.com> --- hw/9pfs/virtio-9p-device.c | 84 +++++++++++++++++++++++++++++++++++++++------- hw/9pfs/virtio-9p.h | 11 ++++++ hw/virtio-pci.c | 5 +++ 3 files changed, 87 insertions(+), 13 deletions(-) diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c index 6761bce..8a88739 100644 --- a/hw/9pfs/virtio-9p-device.c +++ b/hw/9pfs/virtio-9p-device.c @@ -46,19 +46,36 @@ static void virtio_9p_get_config(VirtIODevice *vdev, uint8_t *config) g_free(cfg); } -VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf) +void virtio_9p_set_conf(DeviceState *dev, V9fsConf *conf) { - V9fsState *s; + V9fsState *s = VIRTIO_9P(dev); + memcpy(&(s->fsconf), conf, sizeof(V9fsConf)); +} + +static VirtIODevice *virtio_9p_common_init(DeviceState *dev, V9fsConf *conf, + V9fsState **ps) +{ + V9fsState *s = *ps; int i, len; struct stat stat; FsDriverEntry *fse; V9fsPath path; - s = (V9fsState *)virtio_common_init("virtio-9p", - VIRTIO_ID_9P, - sizeof(struct virtio_9p_config)+ - MAX_TAG_LEN, - sizeof(V9fsState)); + /* + * We have two cases here : the old virtio-9p-pci device, and the + * refactored virtio-9p. + */ + + if (s == NULL) { + s = (V9fsState *)virtio_common_init("virtio-9p", + VIRTIO_ID_9P, + sizeof(struct virtio_9p_config)+ + MAX_TAG_LEN, + sizeof(V9fsState)); + } else { + virtio_init(VIRTIO_DEVICE(s), "virtio-9p", VIRTIO_ID_9P, + sizeof(struct virtio_9p_config) + MAX_TAG_LEN); + } /* initialize pdu allocator */ QLIST_INIT(&s->free_list); QLIST_INIT(&s->active_list); @@ -141,6 +158,12 @@ VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf) return &s->vdev; } +VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf) +{ + V9fsState *s = NULL; + return virtio_9p_common_init(dev, conf, &s); +} + static int virtio_9p_init_pci(PCIDevice *pci_dev) { VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); @@ -154,16 +177,15 @@ static int virtio_9p_init_pci(PCIDevice *pci_dev) return 0; } -static Property virtio_9p_properties[] = { +static Property virtio_9p_pci_properties[] = { DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), 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_VIRTIO_9P_PROPERTIES(VirtIOPCIProxy, fsconf), DEFINE_PROP_END_OF_LIST(), }; -static void virtio_9p_class_init(ObjectClass *klass, void *data) +static void virtio_9p_pci_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); @@ -173,7 +195,7 @@ static void virtio_9p_class_init(ObjectClass *klass, void *data) k->device_id = 0x1009; k->revision = VIRTIO_PCI_ABI_VERSION; k->class_id = 0x2; - dc->props = virtio_9p_properties; + dc->props = virtio_9p_pci_properties; dc->reset = virtio_pci_reset; } @@ -181,11 +203,47 @@ static TypeInfo virtio_9p_info = { .name = "virtio-9p-pci", .parent = TYPE_PCI_DEVICE, .instance_size = sizeof(VirtIOPCIProxy), - .class_init = virtio_9p_class_init, + .class_init = virtio_9p_pci_class_init, +}; + +/* virtio-9p device */ + +static int virtio_9p_device_init(VirtIODevice *vdev) +{ + DeviceState *qdev = DEVICE(vdev); + V9fsState *s = VIRTIO_9P(vdev); + V9fsConf *fsconf = &(s->fsconf); + if (virtio_9p_common_init(qdev, fsconf, &s) == NULL) { + return -1; + } + return 0; +} + +static Property virtio_9p_properties[] = { + DEFINE_VIRTIO_9P_PROPERTIES(V9fsState, fsconf), + DEFINE_PROP_END_OF_LIST(), +}; + +static void virtio_9p_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass); + dc->props = virtio_9p_properties; + vdc->init = virtio_9p_device_init; + vdc->get_features = virtio_9p_get_features; + vdc->get_config = virtio_9p_get_config; +} + +static const TypeInfo virtio_device_info = { + .name = TYPE_VIRTIO_9P, + .parent = TYPE_VIRTIO_DEVICE, + .instance_size = sizeof(V9fsState), + .class_init = virtio_9p_class_init, }; static void virtio_9p_register_types(void) { + type_register_static(&virtio_device_info); type_register_static(&virtio_9p_info); virtio_9p_set_fd_limit(); } diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h index 406fe52..3be634f 100644 --- a/hw/9pfs/virtio-9p.h +++ b/hw/9pfs/virtio-9p.h @@ -225,6 +225,7 @@ typedef struct V9fsState CoRwlock rename_lock; int32_t root_fid; Error *migration_blocker; + V9fsConf fsconf; } V9fsState; typedef struct V9fsStatState { @@ -402,4 +403,14 @@ extern int v9fs_name_to_path(V9fsState *s, V9fsPath *dirpath, #define pdu_unmarshal(pdu, offset, fmt, args...) \ v9fs_unmarshal(pdu->elem.out_sg, pdu->elem.out_num, offset, 1, fmt, ##args) +#define TYPE_VIRTIO_9P "virtio-9p" +#define VIRTIO_9P(obj) \ + OBJECT_CHECK(V9fsState, (obj), TYPE_VIRTIO_9P) + +#define DEFINE_VIRTIO_9P_PROPERTIES(_state, _field) \ + DEFINE_PROP_STRING("mount_tag", _state, _field.tag), \ + DEFINE_PROP_STRING("fsdev", _state, _field.fsdev_id) + +void virtio_9p_set_conf(DeviceState *dev, V9fsConf *conf); + #endif diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c index 7d66c51..0e45b1a 100644 --- a/hw/virtio-pci.c +++ b/hw/virtio-pci.c @@ -23,6 +23,7 @@ #include "virtio-serial.h" #include "virtio-scsi.h" #include "virtio-balloon.h" +#include "9pfs/virtio-9p.h" #include "pci/pci.h" #include "qemu/error-report.h" #include "pci/msi.h" @@ -829,6 +830,10 @@ static void virtio_pci_device_plugged(DeviceState *d) pci_config_set_class(proxy->pci_dev.config, PCI_CLASS_COMMUNICATION_OTHER); break; + case VIRTIO_ID_9P: + pci_config_set_device_id(proxy->pci_dev.config, 0x1009); + pci_config_set_class(proxy->pci_dev.config, 0x0002); + break; default: error_report("unknown device id\n"); break; -- 1.7.11.7