Mailing List Archive

When xenstored is run in a minios domain, it needs a bootstrap
connection to dom0 so that additional domain introduce messages can be
sent to it.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
---
tools/xenstore/xenstored_core.c | 5 +++++
tools/xenstore/xenstored_core.h | 1 +
tools/xenstore/xenstored_domain.c | 13 ++++++++++++-
3 files changed, 18 insertions(+), 1 deletions(-)

diff --git a/tools/xenstore/xenstored_core.c b/tools/xenstore/xenstored_core.c
index 2d4a7e1..7b63a68 100644
--- a/tools/xenstore/xenstored_core.c
+++ b/tools/xenstore/xenstored_core.c
@@ -1774,6 +1774,7 @@ static struct option options[] = {
{ "no-domain-init", 0, NULL, 'D' },
{ "entry-nb", 1, NULL, 'E' },
{ "pid-file", 1, NULL, 'F' },
+ { "event", 1, NULL, 'e' },
{ "help", 0, NULL, 'H' },
{ "no-fork", 0, NULL, 'N' },
{ "output-pid", 0, NULL, 'P' },
@@ -1787,6 +1788,7 @@ static struct option options[] = {
{ NULL, 0, NULL, 0 } };

extern void dump_conn(struct connection *conn);
+int dom0_event = 0;

int main(int argc, char *argv[])
{
@@ -1849,6 +1851,9 @@ int main(int argc, char *argv[])
case 'W':
quota_nb_watch_per_domain = strtol(optarg, NULL, 10);
break;
+ case 'e':
+ dom0_event = strtol(optarg, NULL, 10);
+ break;
}
}
if (optind != argc)
diff --git a/tools/xenstore/xenstored_core.h b/tools/xenstore/xenstored_core.h
index c487089..d3040ba 100644
--- a/tools/xenstore/xenstored_core.h
+++ b/tools/xenstore/xenstored_core.h
@@ -168,6 +168,7 @@ void trace(const char *fmt, ...);
void dtrace_io(const struct connection *conn, const struct buffered_data *data, int out);

extern int event_fd;
+extern int dom0_event;

/* Map the kernel's xenstore page. */
void *xenbus_map(void);
diff --git a/tools/xenstore/xenstored_domain.c b/tools/xenstore/xenstored_domain.c
index aca2149..648eb1d 100644
--- a/tools/xenstore/xenstored_domain.c
+++ b/tools/xenstore/xenstored_domain.c
@@ -593,8 +593,19 @@ void restore_existing_connections(void)
}

#ifdef __MINIOS__
-static inline int dom0_init(void)
+static int dom0_init(void)
{
+ struct domain *domain;
+ int domid = 0;
+ evtchn_port_t port = dom0_event;
+
+ domain = new_domain(NULL, domid, port);
+ domain->interface = xc_gnttab_map_grant_ref(*xcg_handle, domid,
+ GNTTAB_RESERVED_XENSTORE, PROT_READ|PROT_WRITE);
+ talloc_steal(domain->conn, domain);
+
+ xc_evtchn_notify(xce_handle, domain->port);
+
return 0;
}
#else
--
1.7.7.5


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