On 16.07.25 23:14, Jason Andryuk wrote:
Include the event channel in struct xenstore_domain_interface. This way the toolstack or xen can communicate the event channel to xenstored in memory xenstored already needs to access.xenstored maps the grant with the well known GNTTAB_RESERVED_XENSTORE index, so no further information is needed. Suggested-by: Juergen Gross <jgr...@suse.com> Signed-off-by: Jason Andryuk <jason.andr...@amd.com> --- xen/include/public/io/xs_wire.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/xen/include/public/io/xs_wire.h b/xen/include/public/io/xs_wire.h index e92a87a07b..f2c0afd107 100644 --- a/xen/include/public/io/xs_wire.h +++ b/xen/include/public/io/xs_wire.h @@ -110,6 +110,7 @@ struct xenstore_domain_interface { uint32_t server_features; /* Bitmap of features supported by the server */ uint32_t connection; uint32_t error; + uint32_t evtchn_port; };/* Violating this is very bad. See docs/misc/xenstore.txt. */@@ -134,6 +135,12 @@ struct xenstore_domain_interface { #define XENSTORE_ERROR_RINGIDX 2 /* Invalid ring index */ #define XENSTORE_ERROR_PROTO 3 /* Protocol violation (payload too long) */+/*+ * The evtchn_port field is the domU's event channel for xenstored to signal.
Nit: s/domU/domain/ This might be the interface of dom0 to a xenstore-stubdom, so "domU" is not fully appropriate. With that fixed: Reviewed-by: Juergen Gross <jgr...@suse.com> Juergen
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