Differential D19495 Diff 69728 usr.sbin/bhyve/virtio.h

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usr.sbin/bhyve/virtio.h

Show First 20 Lines • Show All 281 Lines • ▼ Show 20 Lines	vring_size(u_int qsz)
size = roundup2(size, VRING_ALIGN);		size = roundup2(size, VRING_ALIGN);

return (size);		return (size);
}		}

struct vmctx;		struct vmctx;
struct pci_devinst;		struct pci_devinst;
struct vqueue_info;		struct vqueue_info;
		struct vm_snapshot_meta;

/*		/*
* A virtual device, with some number (possibly 0) of virtual		* A virtual device, with some number (possibly 0) of virtual
* queues and some size (possibly 0) of configuration-space		* queues and some size (possibly 0) of configuration-space
* registers private to the device. The virtio_softc should come		* registers private to the device. The virtio_softc should come
* at the front of each "derived class", so that a pointer to the		* at the front of each "derived class", so that a pointer to the
* virtio_softc is also a pointer to the more specific, derived-		* virtio_softc is also a pointer to the more specific, derived-
* from-virtio driver's softc.		* from-virtio driver's softc.
▲ Show 20 Lines • Show All 58 Lines • ▼ Show 20 Lines	void (vc_qnotify)(void , struct vqueue_info *);
/* called on QNOTIFY if no VQ notify */		/* called on QNOTIFY if no VQ notify */
int (vc_cfgread)(void , int, int, uint32_t *);		int (vc_cfgread)(void , int, int, uint32_t *);
/* called to read config regs */		/* called to read config regs */
int (vc_cfgwrite)(void , int, int, uint32_t);		int (vc_cfgwrite)(void , int, int, uint32_t);
/* called to write config regs */		/* called to write config regs */
void (vc_apply_features)(void , uint64_t);		void (vc_apply_features)(void , uint64_t);
/* called to apply negotiated features */		/* called to apply negotiated features */
uint64_t vc_hv_caps; /* hypervisor-provided capabilities */		uint64_t vc_hv_caps; /* hypervisor-provided capabilities */
		void (vc_pause)(void ); /* called to pause device activity */
		void (vc_resume)(void ); /* called to resume device activity */
		int (vc_snapshot)(void , struct vm_snapshot_meta *);
		/* called to save / restore device state */
};		};

/*		/*
* Data structure allocated (statically) per virtual queue.		* Data structure allocated (statically) per virtual queue.
*		*
* Drivers may change vq_qsize after a reset. When the guest OS		* Drivers may change vq_qsize after a reset. When the guest OS
* requests a device reset, the hypervisor first calls		* requests a device reset, the hypervisor first calls
* vs->vs_vc->vc_reset(); then the data structure below is		* vs->vs_vc->vc_reset(); then the data structure below is
▲ Show 20 Lines • Show All 114 Lines • ▼ Show 20 Lines
void vq_relchain_publish(struct vqueue_info *vq);		void vq_relchain_publish(struct vqueue_info *vq);
void vq_relchain(struct vqueue_info *vq, uint16_t idx, uint32_t iolen);		void vq_relchain(struct vqueue_info *vq, uint16_t idx, uint32_t iolen);
void vq_endchains(struct vqueue_info *vq, int used_all_avail);		void vq_endchains(struct vqueue_info *vq, int used_all_avail);

uint64_t vi_pci_read(struct vmctx ctx, int vcpu, struct pci_devinst pi,		uint64_t vi_pci_read(struct vmctx ctx, int vcpu, struct pci_devinst pi,
int baridx, uint64_t offset, int size);		int baridx, uint64_t offset, int size);
void vi_pci_write(struct vmctx ctx, int vcpu, struct pci_devinst pi,		void vi_pci_write(struct vmctx ctx, int vcpu, struct pci_devinst pi,
int baridx, uint64_t offset, int size, uint64_t value);		int baridx, uint64_t offset, int size, uint64_t value);
		#ifdef BHYVE_SNAPSHOT
		int vi_pci_snapshot(struct vm_snapshot_meta *meta);
		int vi_pci_pause(struct vmctx ctx, struct pci_devinst pi);
		int vi_pci_resume(struct vmctx ctx, struct pci_devinst pi);
		#endif
#endif /* _VIRTIO_H_ */		#endif /* _VIRTIO_H_ */