#ifndef QEMU_HW_XEN_PVDEV_H #define QEMU_HW_XEN_PVDEV_H #include "hw/xen/xen_backend_ops.h" #include "hw/xen/xen_common.h" /* ------------------------------------------------------------- */ #define XEN_BUFSIZE 1024 struct XenLegacyDevice; /* driver uses grant tables -> open gntdev device (xendev->gnttabdev) */ #define DEVOPS_FLAG_NEED_GNTDEV 1 /* don't expect frontend doing correct state transitions (aka console quirk) */ #define DEVOPS_FLAG_IGNORE_STATE 2 struct XenDevOps { size_t size; uint32_t flags; void (*alloc)(struct XenLegacyDevice *xendev); int (*init)(struct XenLegacyDevice *xendev); int (*initialise)(struct XenLegacyDevice *xendev); void (*connected)(struct XenLegacyDevice *xendev); void (*event)(struct XenLegacyDevice *xendev); void (*disconnect)(struct XenLegacyDevice *xendev); int (*free)(struct XenLegacyDevice *xendev); void (*backend_changed)(struct XenLegacyDevice *xendev, const char *node); void (*frontend_changed)(struct XenLegacyDevice *xendev, const char *node); int (*backend_register)(void); }; struct XenLegacyDevice { DeviceState qdev; const char *type; int dom; int dev; char name[64]; int debug; struct qemu_xs_watch *watch; enum xenbus_state be_state; enum xenbus_state fe_state; int online; char be[XEN_BUFSIZE]; char *fe; char *protocol; int remote_port; int local_port; xenevtchn_handle *evtchndev; xengnttab_handle *gnttabdev; struct XenDevOps *ops; QTAILQ_ENTRY(XenLegacyDevice) next; }; /* ------------------------------------------------------------- */ /* xenstore helper functions */ int xenstore_write_str(const char *base, const char *node, const char *val); int xenstore_write_int(const char *base, const char *node, int ival); int xenstore_write_int64(const char *base, const char *node, int64_t ival); char *xenstore_read_str(const char *base, const char *node); int xenstore_read_int(const char *base, const char *node, int *ival); int xenstore_read_uint64(const char *base, const char *node, uint64_t *uval); const char *xenbus_strstate(enum xenbus_state state); void xen_pv_evtchn_event(void *opaque); void xen_pv_insert_xendev(struct XenLegacyDevice *xendev); void xen_pv_del_xendev(struct XenLegacyDevice *xendev); struct XenLegacyDevice *xen_pv_find_xendev(const char *type, int dom, int dev); void xen_pv_unbind_evtchn(struct XenLegacyDevice *xendev); int xen_pv_send_notify(struct XenLegacyDevice *xendev); void xen_pv_printf(struct XenLegacyDevice *xendev, int msg_level, const char *fmt, ...) G_GNUC_PRINTF(3, 4); #endif /* QEMU_HW_XEN_PVDEV_H */