xc_interface_open etc. is not going to work if we have dropped
privilege, but xendevicemodel_shutdown will if everything is new
enough.
xendevicemodel_shutdown is only availabe in Xen 4.10 and later, so
provide a stub for earlier versions.
Signed-off-by: Ian Jackson <ian.jack...@eu.citrix.com>
Reviewed-by: Anthony PERARD <anthony.per...@citrix.com>
---
v6: Do not print message about harmless condition in ENOTTY case.
v2: Add compatibility stub for Xen < 4.10.
Fix coding style.
Signed-off-by: Ian Jackson <ian.jack...@eu.citrix.com>
---
hw/i386/xen/xen-hvm.c | 11 +++++++++++
include/hw/xen/xen_common.h | 7 +++++++
2 files changed, 18 insertions(+)
diff --git a/hw/i386/xen/xen-hvm.c b/hw/i386/xen/xen-hvm.c
index 3590d99..b95748d 100644
--- a/hw/i386/xen/xen-hvm.c
+++ b/hw/i386/xen/xen-hvm.c
@@ -1386,9 +1386,20 @@ void destroy_hvm_domain(bool reboot)
{
xc_interface *xc_handle;
int sts;
+ int rc;
unsigned int reason = reboot ? SHUTDOWN_reboot : SHUTDOWN_poweroff;
+ if (xen_dmod) {
+ rc = xendevicemodel_shutdown(xen_dmod, xen_domid, reason);
+ if (!rc) {
+ return;
+ }
+ if (errno != ENOTTY /* old Xen */)
+ perror("xendevicemodel_shutdown failed");
+ /* well, try the old thing then */
+ }
+
xc_handle = xc_interface_open(0, 0, 0);
if (xc_handle == NULL) {
fprintf(stderr, "Cannot acquire xenctrl handle\n");
diff --git a/include/hw/xen/xen_common.h b/include/hw/xen/xen_common.h
index 60c4ebb..4bd30a3 100644
--- a/include/hw/xen/xen_common.h
+++ b/include/hw/xen/xen_common.h
@@ -108,6 +108,13 @@ static inline int xentoolcore_restrict_all(domid_t domid)
return -1;
}
+static inline int xendevicemodel_shutdown(xendevicemodel_handle *dmod,
+ domid_t domid, unsigned int reason)
+{
+ errno = ENOTTY;
+ return -1;
+}
+
#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 41000 */
#include <xentoolcore.h>
--
2.1.4
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