[libvirt] [PATCH v4 3/8] Handle arbitrary qemu command-lines in qemuParseCommandLine.
Now that we have the ability to specify arbitrary qemu
command-line parameters in the XML, use it to handle unknown
command-line parameters when doing a native-to-xml conversion.
Changes since v1:
- Rename num_extra to num_args
- Fix up a memory leak on an error path
Changes since v2:
- Add a VIR_WARN when adding the argument via qemu:arg
Changes since v3:
- None
Signed-off-by: Chris Lalancette <clalance(a)redhat.com>
---
src/qemu/qemu_conf.c | 30 ++++++++++++++++++++++++------
1 files changed, 24 insertions(+), 6 deletions(-)
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 151fa68..c7ee278 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -5853,6 +5853,7 @@ virDomainDefPtr qemuParseCommandLine(virCapsPtr caps,
const char **nics = NULL;
int video = VIR_DOMAIN_VIDEO_TYPE_CIRRUS;
int nvirtiodisk = 0;
+ qemuDomainCmdlineDefPtr cmd;
if (!progargv[0]) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
@@ -5863,6 +5864,10 @@ virDomainDefPtr qemuParseCommandLine(virCapsPtr caps,
if (VIR_ALLOC(def) < 0)
goto no_memory;
+ /* allocate the cmdlinedef up-front; if it's unused, we'll free it later */
+ if (VIR_ALLOC(cmd) < 0)
+ goto no_memory;
+
virUUIDGenerate(def->uuid);
def->id = -1;
@@ -6287,12 +6292,17 @@ virDomainDefPtr qemuParseCommandLine(virCapsPtr caps,
} else if (STREQ(arg, "-S")) {
/* ignore, always added by libvirt */
} else {
- VIR_WARN("unknown QEMU argument '%s' during conversion",
arg);
-#if 0
- qemuReportError(VIR_ERR_INTERNAL_ERROR,
- _("unknown argument '%s'"), arg);
- goto error;
-#endif
+ /* something we can't yet parse. Add it to the qemu namespace
+ * cmdline/environment advanced options and hope for the best
+ */
+ VIR_WARN("unknown QEMU argument '%s', adding to the qemu
namespace",
+ arg);
+ if (VIR_REALLOC_N(cmd->args, cmd->num_args+1) < 0)
+ goto no_memory;
+ cmd->args[cmd->num_args] = strdup(arg);
+ if (cmd->args[cmd->num_args] == NULL)
+ goto no_memory;
+ cmd->num_args++;
}
}
@@ -6352,11 +6362,19 @@ virDomainDefPtr qemuParseCommandLine(virCapsPtr caps,
if (virDomainDefAddImplicitControllers(def) < 0)
goto error;
+ if (cmd->num_args || cmd->num_env) {
+ def->ns = caps->ns;
+ def->namespaceData = cmd;
+ }
+ else
+ VIR_FREE(cmd);
+
return def;
no_memory:
virReportOOMError();
error:
+ VIR_FREE(cmd);
virDomainDefFree(def);
VIR_FREE(nics);
return NULL;
--
1.6.6.1