return VIRTUALIZATION_XEN;
}
-static bool detect_vm_xen_dom0(void) {
+/* Returns -errno, or 0 for domU, or 1 for dom0 */
+static int detect_vm_xen_dom0(void) {
_cleanup_free_ char *domcap = NULL;
char *cap, *i;
int r;
r = read_one_line_file("/proc/xen/capabilities", &domcap);
if (r == -ENOENT) {
- log_debug("Virtualization XEN not found, /proc/xen/capabilities does not exist");
- return false;
+ log_debug("Virtualization XEN because /proc/xen/capabilities does not exist");
+ return 0;
}
if (r < 0)
return r;
break;
if (!cap) {
log_debug("Virtualization XEN DomU found (/proc/xen/capabilites)");
- return false;
+ return 0;
}
log_debug("Virtualization XEN Dom0 ignored (/proc/xen/capabilities)");
- return true;
+ return 1;
}
static int detect_vm_hypervisor(void) {
/* x86 xen Dom0 is detected as XEN in hypervisor and maybe others.
* In order to detect the Dom0 as not virtualization we need to
* double-check it */
- if (r == VIRTUALIZATION_XEN && detect_vm_xen_dom0())
- r = VIRTUALIZATION_NONE;
- else if (r == VIRTUALIZATION_NONE && other)
+ if (r == VIRTUALIZATION_XEN) {
+ int ret = detect_vm_xen_dom0();
+ if (ret < 0)
+ return ret;
+ if (ret > 0)
+ r = VIRTUALIZATION_NONE;
+ } else if (r == VIRTUALIZATION_NONE && other)
r = VIRTUALIZATION_VM_OTHER;
cached_found = r;