#define _QEMU_VIRTIO_H
#include "hw.h"
-#include "net.h"
+#include "net/net.h"
#include "qdev.h"
-#include "sysemu.h"
-#include "block.h"
-#include "event_notifier.h"
+#include "sysemu/sysemu.h"
+#include "qemu/event_notifier.h"
#ifdef CONFIG_LINUX
#include "9p.h"
#endif
struct VirtQueue;
-static inline target_phys_addr_t vring_align(target_phys_addr_t addr,
+static inline hwaddr vring_align(hwaddr addr,
unsigned long align)
{
return (addr + align - 1) & ~(align - 1);
unsigned int index;
unsigned int out_num;
unsigned int in_num;
- target_phys_addr_t in_addr[VIRTQUEUE_MAX_SIZE];
- target_phys_addr_t out_addr[VIRTQUEUE_MAX_SIZE];
+ hwaddr in_addr[VIRTQUEUE_MAX_SIZE];
+ hwaddr out_addr[VIRTQUEUE_MAX_SIZE];
struct iovec in_sg[VIRTQUEUE_MAX_SIZE];
struct iovec out_sg[VIRTQUEUE_MAX_SIZE];
} VirtQueueElement;
typedef struct {
- void (*notify)(void * opaque, uint16_t vector);
- void (*save_config)(void * opaque, QEMUFile *f);
- void (*save_queue)(void * opaque, int n, QEMUFile *f);
- int (*load_config)(void * opaque, QEMUFile *f);
- int (*load_queue)(void * opaque, int n, QEMUFile *f);
- int (*load_done)(void * opaque, QEMUFile *f);
- unsigned (*get_features)(void * opaque);
- bool (*query_guest_notifiers)(void * opaque);
- int (*set_guest_notifiers)(void * opaque, bool assigned);
- int (*set_host_notifier)(void * opaque, int n, bool assigned);
- void (*vmstate_change)(void * opaque, bool running);
+ void (*notify)(DeviceState *d, uint16_t vector);
+ void (*save_config)(DeviceState *d, QEMUFile *f);
+ void (*save_queue)(DeviceState *d, int n, QEMUFile *f);
+ int (*load_config)(DeviceState *d, QEMUFile *f);
+ int (*load_queue)(DeviceState *d, int n, QEMUFile *f);
+ int (*load_done)(DeviceState *d, QEMUFile *f);
+ unsigned (*get_features)(DeviceState *d);
+ bool (*query_guest_notifiers)(DeviceState *d);
+ int (*set_guest_notifiers)(DeviceState *d, int nvqs, bool assigned);
+ int (*set_host_notifier)(DeviceState *d, int n, bool assigned);
+ void (*vmstate_change)(DeviceState *d, bool running);
} VirtIOBindings;
#define VIRTIO_PCI_QUEUE_MAX 64
#define VIRTIO_NO_VECTOR 0xffff
+#define TYPE_VIRTIO_DEVICE "virtio-device"
+#define VIRTIO_DEVICE_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(VirtioDeviceClass, obj, TYPE_VIRTIO_DEVICE)
+#define VIRTIO_DEVICE_CLASS(klass) \
+ OBJECT_CLASS_CHECK(VirtioDeviceClass, klass, TYPE_VIRTIO_DEVICE)
+#define VIRTIO_DEVICE(obj) \
+ OBJECT_CHECK(VirtIODevice, (obj), TYPE_VIRTIO_DEVICE)
+
struct VirtIODevice
{
+ DeviceState parent_obj;
const char *name;
uint8_t status;
uint8_t isr;
void *config;
uint16_t config_vector;
int nvectors;
+ /*
+ * Function pointers will be removed at the end of the series as they are in
+ * VirtioDeviceClass.
+ */
uint32_t (*get_features)(VirtIODevice *vdev, uint32_t requested_features);
uint32_t (*bad_features)(VirtIODevice *vdev);
void (*set_features)(VirtIODevice *vdev, uint32_t val);
void (*set_config)(VirtIODevice *vdev, const uint8_t *config);
void (*reset)(VirtIODevice *vdev);
void (*set_status)(VirtIODevice *vdev, uint8_t val);
+ /* Test and clear event pending status.
+ * Should be called after unmask to avoid losing events.
+ * If backend does not support masking,
+ * must check in frontend instead.
+ */
+ bool (*guest_notifier_pending)(VirtIODevice *vdev, int n);
+ /* Mask/unmask events from this vq. Any events reported
+ * while masked will become pending.
+ * If backend does not support masking,
+ * must mask in frontend instead.
+ */
+ void (*guest_notifier_mask)(VirtIODevice *vdev, int n, bool mask);
+
VirtQueue *vq;
const VirtIOBindings *binding;
- void *binding_opaque;
+ DeviceState *binding_opaque;
uint16_t device_id;
bool vm_running;
VMChangeStateEntry *vmstate;
};
+typedef struct VirtioDeviceClass {
+ /* This is what a VirtioDevice must implement */
+ DeviceClass parent;
+ int (*init)(VirtIODevice *vdev);
+ uint32_t (*get_features)(VirtIODevice *vdev, uint32_t requested_features);
+ uint32_t (*bad_features)(VirtIODevice *vdev);
+ void (*set_features)(VirtIODevice *vdev, uint32_t val);
+ void (*get_config)(VirtIODevice *vdev, uint8_t *config);
+ void (*set_config)(VirtIODevice *vdev, const uint8_t *config);
+ void (*reset)(VirtIODevice *vdev);
+ void (*set_status)(VirtIODevice *vdev, uint8_t val);
+} VirtioDeviceClass;
+
+void virtio_init(VirtIODevice *vdev, const char *name,
+ uint16_t device_id, size_t config_size);
+void virtio_common_cleanup(VirtIODevice *vdev);
+
VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
void (*handle_output)(VirtIODevice *,
VirtQueue *));
void virtqueue_fill(VirtQueue *vq, const VirtQueueElement *elem,
unsigned int len, unsigned int idx);
-void virtqueue_map_sg(struct iovec *sg, target_phys_addr_t *addr,
+void virtqueue_map_sg(struct iovec *sg, hwaddr *addr,
size_t num_sg, int is_write);
int virtqueue_pop(VirtQueue *vq, VirtQueueElement *elem);
-int virtqueue_avail_bytes(VirtQueue *vq, int in_bytes, int out_bytes);
+int virtqueue_avail_bytes(VirtQueue *vq, unsigned int in_bytes,
+ unsigned int out_bytes);
+void virtqueue_get_avail_bytes(VirtQueue *vq, unsigned int *in_bytes,
+ unsigned int *out_bytes,
+ unsigned max_in_bytes, unsigned max_out_bytes);
void virtio_notify(VirtIODevice *vdev, VirtQueue *vq);
void virtio_config_writeb(VirtIODevice *vdev, uint32_t addr, uint32_t data);
void virtio_config_writew(VirtIODevice *vdev, uint32_t addr, uint32_t data);
void virtio_config_writel(VirtIODevice *vdev, uint32_t addr, uint32_t data);
-void virtio_queue_set_addr(VirtIODevice *vdev, int n, target_phys_addr_t addr);
-target_phys_addr_t virtio_queue_get_addr(VirtIODevice *vdev, int n);
+void virtio_queue_set_addr(VirtIODevice *vdev, int n, hwaddr addr);
+hwaddr virtio_queue_get_addr(VirtIODevice *vdev, int n);
int virtio_queue_get_num(VirtIODevice *vdev, int n);
void virtio_queue_notify(VirtIODevice *vdev, int n);
uint16_t virtio_queue_vector(VirtIODevice *vdev, int n);
int virtio_set_features(VirtIODevice *vdev, uint32_t val);
void virtio_bind_device(VirtIODevice *vdev, const VirtIOBindings *binding,
- void *opaque);
+ DeviceState *opaque);
/* Base devices. */
-VirtIODevice *virtio_blk_init(DeviceState *dev, BlockConf *conf,
- char **serial);
+typedef struct VirtIOBlkConf VirtIOBlkConf;
+VirtIODevice *virtio_blk_init(DeviceState *dev, VirtIOBlkConf *blk);
struct virtio_net_conf;
VirtIODevice *virtio_net_init(DeviceState *dev, NICConf *conf,
struct virtio_net_conf *net);
VirtIODevice *virtio_balloon_init(DeviceState *dev);
typedef struct VirtIOSCSIConf VirtIOSCSIConf;
VirtIODevice *virtio_scsi_init(DeviceState *dev, VirtIOSCSIConf *conf);
+typedef struct VirtIORNGConf VirtIORNGConf;
+VirtIODevice *virtio_rng_init(DeviceState *dev, VirtIORNGConf *conf);
#ifdef CONFIG_LINUX
VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf);
#endif
void virtio_serial_exit(VirtIODevice *vdev);
void virtio_balloon_exit(VirtIODevice *vdev);
void virtio_scsi_exit(VirtIODevice *vdev);
+void virtio_rng_exit(VirtIODevice *vdev);
#define DEFINE_VIRTIO_COMMON_FEATURES(_state, _field) \
DEFINE_PROP_BIT("indirect_desc", _state, _field, \
DEFINE_PROP_BIT("event_idx", _state, _field, \
VIRTIO_RING_F_EVENT_IDX, true)
-target_phys_addr_t virtio_queue_get_desc_addr(VirtIODevice *vdev, int n);
-target_phys_addr_t virtio_queue_get_avail_addr(VirtIODevice *vdev, int n);
-target_phys_addr_t virtio_queue_get_used_addr(VirtIODevice *vdev, int n);
-target_phys_addr_t virtio_queue_get_ring_addr(VirtIODevice *vdev, int n);
-target_phys_addr_t virtio_queue_get_desc_size(VirtIODevice *vdev, int n);
-target_phys_addr_t virtio_queue_get_avail_size(VirtIODevice *vdev, int n);
-target_phys_addr_t virtio_queue_get_used_size(VirtIODevice *vdev, int n);
-target_phys_addr_t virtio_queue_get_ring_size(VirtIODevice *vdev, int n);
+hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n);
+hwaddr virtio_queue_get_avail_addr(VirtIODevice *vdev, int n);
+hwaddr virtio_queue_get_used_addr(VirtIODevice *vdev, int n);
+hwaddr virtio_queue_get_ring_addr(VirtIODevice *vdev, int n);
+hwaddr virtio_queue_get_desc_size(VirtIODevice *vdev, int n);
+hwaddr virtio_queue_get_avail_size(VirtIODevice *vdev, int n);
+hwaddr virtio_queue_get_used_size(VirtIODevice *vdev, int n);
+hwaddr virtio_queue_get_ring_size(VirtIODevice *vdev, int n);
uint16_t virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n);
void virtio_queue_set_last_avail_idx(VirtIODevice *vdev, int n, uint16_t idx);
VirtQueue *virtio_get_queue(VirtIODevice *vdev, int n);
+int virtio_queue_get_id(VirtQueue *vq);
EventNotifier *virtio_queue_get_guest_notifier(VirtQueue *vq);
+void virtio_queue_set_guest_notifier_fd_handler(VirtQueue *vq, bool assign,
+ bool with_irqfd);
EventNotifier *virtio_queue_get_host_notifier(VirtQueue *vq);
+void virtio_queue_set_host_notifier_fd_handler(VirtQueue *vq, bool assign,
+ bool set_handler);
void virtio_queue_notify_vq(VirtQueue *vq);
void virtio_irq(VirtQueue *vq);
#endif
projects / qemu.git / blobdiff