[libvirt] [PATCH] conf: reject controllers with duplicate indexes
Reject multiple controllers with the same index,
except for USB controllers.
Multi-function USB controllers can have the same index.
---
src/conf/domain_conf.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 59 insertions(+)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index cb69178..b6323fd 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -2594,6 +2594,63 @@ virDomainDeviceInfoIterate(virDomainDefPtr def,
static int
+virDomainDefRejectDuplicateControllers(virDomainDefPtr def)
+{
+ int max_idx[VIR_DOMAIN_CONTROLLER_TYPE_LAST];
+ virBitmapPtr bitmaps[VIR_DOMAIN_CONTROLLER_TYPE_LAST] = { NULL };
+ virDomainControllerDefPtr cont;
+ size_t nbitmaps = 0;
+ int ret = -1;
+ bool b;
+ int i;
+
+ memset(max_idx, -1, sizeof(max_idx)/sizeof(max_idx[0]));
+
+ for (i = 0; i < def->ncontrollers; i++) {
+ cont = def->controllers[i];
+ if (cont->idx > max_idx[cont->type])
+ max_idx[cont->type] = cont->idx;
+ }
+
+ /* multiple USB controllers with the same index are allowed */
+ max_idx[VIR_DOMAIN_CONTROLLER_TYPE_USB] = -1;
+
+ for (i = 0; i < VIR_DOMAIN_CONTROLLER_TYPE_LAST; i++) {
+ if (max_idx[i] >= 0 && !(bitmaps[i] = virBitmapNew(max_idx[i] + 1)))
+ goto no_memory;
+ nbitmaps++;
+ }
+
+ for (i = 0; i < def->ncontrollers; i++) {
+ cont = def->controllers[i];
+
+ if (max_idx[cont->type] == -1)
+ continue;
+
+ ignore_value(virBitmapGetBit(bitmaps[cont->type], cont->idx, &b));
+ if (b) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("Multiple '%s' controllers with index
'%d'"),
+ virDomainControllerTypeToString(cont->type),
+ cont->idx);
+ goto cleanup;
+ }
+ ignore_value(virBitmapSetBit(bitmaps[cont->type], cont->idx));
+ }
+
+ ret = 0;
+cleanup:
+ for (i = 0; i < nbitmaps; i++)
+ virBitmapFree(bitmaps[i]);
+ return ret;
+
+no_memory:
+ virReportOOMError();
+ goto cleanup;
+}
+
+
+static int
virDomainDefPostParseInternal(virDomainDefPtr def,
virCapsPtr caps ATTRIBUTE_UNUSED)
{
@@ -2673,6 +2730,8 @@ virDomainDefPostParseInternal(virDomainDefPtr def,
}
}
+ if (virDomainDefRejectDuplicateControllers(def) < 0)
+ return -1;
return 0;
no_memory:
--
1.8.1.5