@@ -5364,6 +5364,7 @@ const libxl_version_info* libxl_get_version_info(libxl_ctx *ctx)
GC_INIT(ctx);
char *buf;
xen_version_op_val_t val = 0;
+ int r;
libxl_version_info *info = &ctx->version_info;
if (info->xen_version_extra != NULL)
@@ -5406,8 +5407,21 @@ const libxl_version_info* libxl_get_version_info(libxl_ctx *ctx)
info->virt_start = val;
- (void)libxl__xc_version_wrapper(gc, XEN_VERSION_commandline, buf,
- info->pagesize, &info->commandline);
+ if (libxl__xc_version_wrapper(gc, XEN_VERSION_commandline, buf,
+ info->pagesize, &info->commandline) < 0)
+ goto out;
+
+ r = xc_version(ctx->xch, XEN_VERSION_build_id, buf, info->pagesize);
+ if (r < 0) {
+ info->build_id = libxl__strdup(NOGC, "");
+ } else if (r > 0) {
+ unsigned int i;
+
+ info->build_id = libxl__zalloc(NOGC, (r * 2) + 1);
+
+ for (i = 0; i < r; i++)
+ snprintf(&info->build_id[i * 2], 3, "%02hhx", buf[i]);
+ }
out:
GC_FREE;
return info;
@@ -247,6 +247,12 @@
#define LIBXL_HAVE_APIC_ASSIST 1
/*
+ * LIBXL_HAVE_BUILD_ID means that libxl_version_info has the extra
+ * field for the hypervisor build_id.
+ */
+#define LIBXL_HAVE_BUILD_ID 1
+
+/*
* libxl ABI compatibility
*
* The only guarantee which libxl makes regarding ABI compatibility
@@ -365,6 +365,7 @@ libxl_version_info = Struct("version_info", [
("virt_start", uint64),
("pagesize", integer),
("commandline", string),
+ ("build_id", string),
], dir=DIR_OUT)
libxl_domain_create_info = Struct("domain_create_info",[
@@ -5915,6 +5915,7 @@ static void output_xeninfo(void)
printf("cc_compile_by : %s\n", info->compile_by);
printf("cc_compile_domain : %s\n", info->compile_domain);
printf("cc_compile_date : %s\n", info->compile_date);
+ printf("build_id : %s\n", info->build_id);
return;
}