Git Repo - qemu.git/blame_incremental

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Commit	Line	Data
	1	#ifndef QEMU_HW_XEN_BACKEND_H
	2	#define QEMU_HW_XEN_BACKEND_H 1
	3
	4	#include "xen_common.h"
	5	#include "sysemu.h"
	6	#include "net.h"
	7	#include "net/hub.h"
	8
	9	/* ------------------------------------------------------------- */
	10
	11	#define XEN_BUFSIZE 1024
	12
	13	struct XenDevice;
	14
	15	/* driver uses grant tables -> open gntdev device (xendev->gnttabdev) */
	16	#define DEVOPS_FLAG_NEED_GNTDEV 1
	17	/* don't expect frontend doing correct state transitions (aka console quirk) */
	18	#define DEVOPS_FLAG_IGNORE_STATE 2
	19
	20	struct XenDevOps {
	21	size_t size;
	22	uint32_t flags;
	23	void (alloc)(struct XenDevice xendev);
	24	int (init)(struct XenDevice xendev);
	25	int (initialise)(struct XenDevice xendev);
	26	void (connected)(struct XenDevice xendev);
	27	void (event)(struct XenDevice xendev);
	28	void (disconnect)(struct XenDevice xendev);
	29	int (free)(struct XenDevice xendev);
	30	void (backend_changed)(struct XenDevice xendev, const char *node);
	31	void (frontend_changed)(struct XenDevice xendev, const char *node);
	32	};
	33
	34	struct XenDevice {
	35	const char *type;
	36	int dom;
	37	int dev;
	38	char name[64];
	39	int debug;
	40
	41	enum xenbus_state be_state;
	42	enum xenbus_state fe_state;
	43	int online;
	44	char be[XEN_BUFSIZE];
	45	char *fe;
	46	char *protocol;
	47	int remote_port;
	48	int local_port;
	49
	50	XenEvtchn evtchndev;
	51	XenGnttab gnttabdev;
	52
	53	struct XenDevOps *ops;
	54	QTAILQ_ENTRY(XenDevice) next;
	55	};
	56
	57	/* ------------------------------------------------------------- */
	58
	59	/* variables */
	60	extern XenXC xen_xc;
	61	extern struct xs_handle *xenstore;
	62	extern const char *xen_protocol;
	63
	64	/* xenstore helper functions */
	65	int xenstore_write_str(const char base, const char node, const char *val);
	66	int xenstore_write_int(const char base, const char node, int ival);
	67	char xenstore_read_str(const char base, const char *node);
	68	int xenstore_read_int(const char base, const char node, int *ival);
	69
	70	int xenstore_write_be_str(struct XenDevice xendev, const char node, const char *val);
	71	int xenstore_write_be_int(struct XenDevice xendev, const char node, int ival);
	72	char xenstore_read_be_str(struct XenDevice xendev, const char *node);
	73	int xenstore_read_be_int(struct XenDevice xendev, const char node, int *ival);
	74	char xenstore_read_fe_str(struct XenDevice xendev, const char *node);
	75	int xenstore_read_fe_int(struct XenDevice xendev, const char node, int *ival);
	76
	77	const char *xenbus_strstate(enum xenbus_state state);
	78	struct XenDevice xen_be_find_xendev(const char type, int dom, int dev);
	79	void xen_be_check_state(struct XenDevice *xendev);
	80
	81	/* xen backend driver bits */
	82	int xen_be_init(void);
	83	int xen_be_register(const char type, struct XenDevOps ops);
	84	int xen_be_set_state(struct XenDevice *xendev, enum xenbus_state state);
	85	int xen_be_bind_evtchn(struct XenDevice *xendev);
	86	void xen_be_unbind_evtchn(struct XenDevice *xendev);
	87	int xen_be_send_notify(struct XenDevice *xendev);
	88	void xen_be_printf(struct XenDevice xendev, int msg_level, const char fmt, ...)
	89	GCC_FMT_ATTR(3, 4);
	90
	91	/* actual backend drivers */
	92	extern struct XenDevOps xen_console_ops; /* xen_console.c */
	93	extern struct XenDevOps xen_kbdmouse_ops; /* xen_framebuffer.c */
	94	extern struct XenDevOps xen_framebuffer_ops; /* xen_framebuffer.c */
	95	extern struct XenDevOps xen_blkdev_ops; /* xen_disk.c */
	96	extern struct XenDevOps xen_netdev_ops; /* xen_nic.c */
	97
	98	void xen_init_display(int domid);
	99
	100	/* configuration (aka xenbus setup) */
	101	void xen_config_cleanup(void);
	102	int xen_config_dev_blk(DriveInfo *disk);
	103	int xen_config_dev_nic(NICInfo *nic);
	104	int xen_config_dev_vfb(int vdev, const char *type);
	105	int xen_config_dev_vkbd(int vdev);
	106	int xen_config_dev_console(int vdev);
	107
	108	#endif /* QEMU_HW_XEN_BACKEND_H */