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hw/xen: Add xenstore operations to allow redirection to internal emulation

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Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
This commit is contained in:
Paul Durrant 2023-01-02 11:05:16 +00:00 • committed by David Woodhouse
parent 15e283c5b6
commit ba2a92db1f
18 changed files with 532 additions and 416 deletions
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26
include/hw/xen/xen-bus-helper.h
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@ -8,40 +8,40 @@
#ifndef HW_XEN_BUS_HELPER_H
#define HW_XEN_BUS_HELPER_H
#include "hw/xen/xen_common.h"
#include "hw/xen/xen_backend_ops.h"
const char *xs_strstate(enum xenbus_state state);
void xs_node_create(struct xs_handle *xsh, xs_transaction_t tid,
const char *node, struct xs_permissions perms[],
unsigned int nr_perms, Error **errp);
void xs_node_destroy(struct xs_handle *xsh, xs_transaction_t tid,
void xs_node_create(struct qemu_xs_handle *h, xs_transaction_t tid,
const char *node, unsigned int owner, unsigned int domid,
unsigned int perms, Error **errp);
void xs_node_destroy(struct qemu_xs_handle *h, xs_transaction_t tid,
const char *node, Error **errp);
/* Write to node/key unless node is empty, in which case write to key */
void xs_node_vprintf(struct xs_handle *xsh, xs_transaction_t tid,
void xs_node_vprintf(struct qemu_xs_handle *h, xs_transaction_t tid,
const char *node, const char *key, Error **errp,
const char *fmt, va_list ap)
G_GNUC_PRINTF(6, 0);
void xs_node_printf(struct xs_handle *xsh, xs_transaction_t tid,
void xs_node_printf(struct qemu_xs_handle *h, xs_transaction_t tid,
const char *node, const char *key, Error **errp,
const char *fmt, ...)
G_GNUC_PRINTF(6, 7);
/* Read from node/key unless node is empty, in which case read from key */
int xs_node_vscanf(struct xs_handle *xsh, xs_transaction_t tid,
int xs_node_vscanf(struct qemu_xs_handle *h, xs_transaction_t tid,
const char *node, const char *key, Error **errp,
const char *fmt, va_list ap)
G_GNUC_SCANF(6, 0);
int xs_node_scanf(struct xs_handle *xsh, xs_transaction_t tid,
int xs_node_scanf(struct qemu_xs_handle *h, xs_transaction_t tid,
const char *node, const char *key, Error **errp,
const char *fmt, ...)
G_GNUC_SCANF(6, 7);
/* Watch node/key unless node is empty, in which case watch key */
void xs_node_watch(struct xs_handle *xsh, const char *node, const char *key,
char *token, Error **errp);
void xs_node_unwatch(struct xs_handle *xsh, const char *node, const char *key,
const char *token, Error **errp);
struct qemu_xs_watch *xs_node_watch(struct qemu_xs_handle *h, const char *node,
const char *key, xs_watch_fn fn,
void *opaque, Error **errp);
void xs_node_unwatch(struct qemu_xs_handle *h, struct qemu_xs_watch *w);
#endif /* HW_XEN_BUS_HELPER_H */