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#ifndef HW_XEN_LEGACY_BACKEND_H
#define HW_XEN_LEGACY_BACKEND_H
#include "hw/xen/xen_common.h"
#include "hw/xen/xen_pvdev.h"
#include "sysemu/sysemu.h"
#include "net/net.h"
#define TYPE_XENSYSDEV "xen-sysdev"
#define TYPE_XENSYSBUS "xen-sysbus"
#define TYPE_XENBACKEND "xen-backend"
#define XENBACKEND_DEVICE(obj) \
OBJECT_CHECK(XenLegacyDevice, (obj), TYPE_XENBACKEND)
/* variables */
extern struct xs_handle *xenstore;
extern const char *xen_protocol;
extern DeviceState *xen_sysdev;
extern BusState *xen_sysbus;
int xenstore_mkdir(char *path, int p);
int xenstore_write_be_str(struct XenLegacyDevice *xendev, const char *node,
const char *val);
int xenstore_write_be_int(struct XenLegacyDevice *xendev, const char *node,
int ival);
int xenstore_write_be_int64(struct XenLegacyDevice *xendev, const char *node,
int64_t ival);
char *xenstore_read_be_str(struct XenLegacyDevice *xendev, const char *node);
int xenstore_read_be_int(struct XenLegacyDevice *xendev, const char *node,
int *ival);
void xenstore_update_fe(char *watch, struct XenLegacyDevice *xendev);
void xenstore_update_be(char *watch, char *type, int dom,
struct XenDevOps *ops);
char *xenstore_read_fe_str(struct XenLegacyDevice *xendev, const char *node);
int xenstore_read_fe_int(struct XenLegacyDevice *xendev, const char *node,
int *ival);
int xenstore_read_fe_uint64(struct XenLegacyDevice *xendev, const char *node,
uint64_t *uval);
void xen_be_check_state(struct XenLegacyDevice *xendev);
/* xen backend driver bits */
int xen_be_init(void);
void xen_be_register_common(void);
int xen_be_register(const char *type, struct XenDevOps *ops);
int xen_be_set_state(struct XenLegacyDevice *xendev, enum xenbus_state state);
int xen_be_bind_evtchn(struct XenLegacyDevice *xendev);
void xen_be_set_max_grant_refs(struct XenLegacyDevice *xendev,
unsigned int nr_refs);
void *xen_be_map_grant_refs(struct XenLegacyDevice *xendev, uint32_t *refs,
unsigned int nr_refs, int prot);
void xen_be_unmap_grant_refs(struct XenLegacyDevice *xendev, void *ptr,
unsigned int nr_refs);
typedef struct XenGrantCopySegment {
union {
void *virt;
struct {
uint32_t ref;
off_t offset;
} foreign;
} source, dest;
size_t len;
} XenGrantCopySegment;
int xen_be_copy_grant_refs(struct XenLegacyDevice *xendev,
bool to_domain, XenGrantCopySegment segs[],
unsigned int nr_segs);
static inline void *xen_be_map_grant_ref(struct XenLegacyDevice *xendev,
uint32_t ref, int prot)
{
return xen_be_map_grant_refs(xendev, &ref, 1, prot);
}
static inline void xen_be_unmap_grant_ref(struct XenLegacyDevice *xendev,
void *ptr)
{
return xen_be_unmap_grant_refs(xendev, ptr, 1);
}
/* actual backend drivers */
extern struct XenDevOps xen_console_ops; /* xen_console.c */
extern struct XenDevOps xen_kbdmouse_ops; /* xen_framebuffer.c */
extern struct XenDevOps xen_framebuffer_ops; /* xen_framebuffer.c */
extern struct XenDevOps xen_blkdev_ops; /* xen_disk.c */
#ifdef CONFIG_VIRTFS
extern struct XenDevOps xen_9pfs_ops; /* xen-9p-backend.c */
#endif
extern struct XenDevOps xen_netdev_ops; /* xen_nic.c */
#ifdef CONFIG_USB_LIBUSB
extern struct XenDevOps xen_usb_ops; /* xen-usb.c */
#endif
/* configuration (aka xenbus setup) */
void xen_config_cleanup(void);
int xen_config_dev_blk(DriveInfo *disk);
int xen_config_dev_nic(NICInfo *nic);
int xen_config_dev_vfb(int vdev, const char *type);
int xen_config_dev_vkbd(int vdev);
int xen_config_dev_console(int vdev);
#endif /* HW_XEN_LEGACY_BACKEND_H */
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