mirror of
https://github.com/Motorhead1991/qemu.git
synced 2025-07-27 12:23:53 -06:00
250e797cea
Because the legacy Xen backend devices can optionally be plugged on the TYPE_PLATFORM_BUS_DEVICE, have it inherit TYPE_DYNAMIC_SYS_BUS_DEVICE. Remove the implicit TYPE_XENSYSDEV instance_size. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Alexander Graf <graf@amazon.com> Tested-by: Bernhard Beschow <shentey@gmail.com> Reviewed-by: Bernhard Beschow <shentey@gmail.com> Message-Id: <20250125181343.59151-10-philmd@linaro.org>
83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
#ifndef QEMU_HW_XEN_PVDEV_H
|
|
#define QEMU_HW_XEN_PVDEV_H
|
|
|
|
#include "hw/sysbus.h"
|
|
#include "hw/xen/xen_backend_ops.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);
|
|
};
|
|
|
|
struct XenLegacyDevice {
|
|
SysBusDevice parent_obj;
|
|
|
|
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;
|
|
|
|
const 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 */
|