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xen: sync xs_wire.h header with upstream xen 

Sync the xs_wire.h header file in Linux with the one in Xen.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20220513211938.719341-1-sstabellini@kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
Stefano Stabellini 2022-05-13 14:19:37 -07:00 committed by Juergen Gross
parent 1591a65f55
commit 62db0fafa8
1 changed files with 33 additions and 4 deletions
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37
include/xen/interface/io/xs_wire.h
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@ -10,7 +10,8 @@
enum xsd_sockmsg_type
{
XS_DEBUG,
XS_CONTROL,
#define XS_DEBUG XS_CONTROL
XS_DIRECTORY,
XS_READ,
XS_GET_PERMS,
@ -30,8 +31,13 @@ enum xsd_sockmsg_type
XS_IS_DOMAIN_INTRODUCED,
XS_RESUME,
XS_SET_TARGET,
XS_RESTRICT,
XS_RESET_WATCHES,
/* XS_RESTRICT has been removed */
XS_RESET_WATCHES = XS_SET_TARGET + 2,
XS_DIRECTORY_PART,
XS_TYPE_COUNT, /* Number of valid types. */
XS_INVALID = 0xffff /* Guaranteed to remain an invalid type */
};
#define XS_WRITE_NONE "NONE"
@ -59,7 +65,8 @@ static struct xsd_errors xsd_errors[] __attribute__((unused)) = {
XSD_ERROR(EROFS),
XSD_ERROR(EBUSY),
XSD_ERROR(EAGAIN),
XSD_ERROR(EISCONN)
XSD_ERROR(EISCONN),
XSD_ERROR(E2BIG)
};
struct xsd_sockmsg
@ -87,9 +94,31 @@ struct xenstore_domain_interface {
char rsp[XENSTORE_RING_SIZE]; /* Replies and async watch events. */
XENSTORE_RING_IDX req_cons, req_prod;
XENSTORE_RING_IDX rsp_cons, rsp_prod;
uint32_t server_features; /* Bitmap of features supported by the server */
uint32_t connection;
uint32_t error;
};
/* Violating this is very bad. See docs/misc/xenstore.txt. */
#define XENSTORE_PAYLOAD_MAX 4096
/* Violating these just gets you an error back */
#define XENSTORE_ABS_PATH_MAX 3072
#define XENSTORE_REL_PATH_MAX 2048
/* The ability to reconnect a ring */
#define XENSTORE_SERVER_FEATURE_RECONNECTION 1
/* The presence of the "error" field in the ring page */
#define XENSTORE_SERVER_FEATURE_ERROR 2
/* Valid values for the connection field */
#define XENSTORE_CONNECTED 0 /* the steady-state */
#define XENSTORE_RECONNECT 1 /* guest has initiated a reconnect */
/* Valid values for the error field */
#define XENSTORE_ERROR_NONE 0 /* No error */
#define XENSTORE_ERROR_COMM 1 /* Communication problem */
#define XENSTORE_ERROR_RINGIDX 2 /* Invalid ring index */
#define XENSTORE_ERROR_PROTO 3 /* Protocol violation (payload too long) */
#endif /* _XS_WIRE_H */