Revision 53c25cea hw/virtio.h
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#define _QEMU_VIRTIO_H |
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#include "hw.h" |
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#include "pci.h"
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#include "qdev.h"
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/* from Linux's linux/virtio_config.h */ |
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struct iovec out_sg[VIRTQUEUE_MAX_SIZE]; |
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} VirtQueueElement; |
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typedef struct {
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void (*update_irq)(void * opaque); |
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} VirtIOBindings; |
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#define VIRTIO_PCI_QUEUE_MAX 16 |
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struct VirtIODevice |
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{
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PCIDevice pci_dev; |
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const char *name; |
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uint32_t addr; |
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uint8_t status; |
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uint8_t isr; |
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uint16_t queue_sel; |
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void (*set_config)(VirtIODevice *vdev, const uint8_t *config); |
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void (*reset)(VirtIODevice *vdev); |
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VirtQueue *vq; |
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const VirtIOBindings *binding; |
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void *binding_opaque; |
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uint16_t device_id; |
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}; |
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VirtIODevice *virtio_init_pci(PCIDevice *pci_dev, const char *name, |
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uint16_t vendor, uint16_t device, |
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uint16_t subvendor, uint16_t subdevice, |
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uint16_t class_code, uint8_t pif, |
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size_t config_size); |
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VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size, |
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void (*handle_output)(VirtIODevice *, |
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VirtQueue *)); |
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int virtio_queue_empty(VirtQueue *vq); |
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/* Host binding interface. */ |
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VirtIODevice *virtio_common_init(const char *name, uint16_t device_id, |
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size_t config_size, size_t struct_size); |
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uint32_t virtio_config_readb(VirtIODevice *vdev, uint32_t addr); |
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uint32_t virtio_config_readw(VirtIODevice *vdev, uint32_t addr); |
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uint32_t virtio_config_readl(VirtIODevice *vdev, uint32_t addr); |
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void virtio_config_writeb(VirtIODevice *vdev, uint32_t addr, uint32_t data); |
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void virtio_config_writew(VirtIODevice *vdev, uint32_t addr, uint32_t data); |
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void virtio_config_writel(VirtIODevice *vdev, uint32_t addr, uint32_t data); |
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void virtio_queue_set_addr(VirtIODevice *vdev, int n, target_phys_addr_t addr); |
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target_phys_addr_t virtio_queue_get_addr(VirtIODevice *vdev, int n); |
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int virtio_queue_get_num(VirtIODevice *vdev, int n); |
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void virtio_queue_notify(VirtIODevice *vdev, int n); |
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void virtio_reset(void *opaque); |
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void virtio_update_irq(VirtIODevice *vdev); |
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void virtio_bind_device(VirtIODevice *vdev, const VirtIOBindings *binding, |
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void *opaque); |
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/* Base devices. */ |
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VirtIODevice *virtio_blk_init(DeviceState *dev); |
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VirtIODevice *virtio_net_init(DeviceState *dev); |
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VirtIODevice *virtio_console_init(DeviceState *dev); |
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VirtIODevice *virtio_balloon_init(DeviceState *dev); |
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#endif |
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