[libvirt PATCH] qemu: forbid readonly attribute for externally launched virtiofsd

[Ján Tomko via Devel <devel@xxxxxxxxxxxxxxxxx>]

From: Ján Tomko <jtomko@xxxxxxxxxx>

In that case, libvirtd cannot set it on the command line because
virtiofsd is not launched by libvirt.

https://issues.redhat.com/browse/RHEL-87522

Signed-off-by: Ján Tomko <jtomko@xxxxxxxxxx>
---
 src/qemu/qemu_validate.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c
index 87588024ce..013ff14d75 100644
--- a/src/qemu/qemu_validate.c
+++ b/src/qemu/qemu_validate.c
@@ -4684,6 +4684,11 @@ qemuValidateDomainDeviceDefFS(virDomainFSDef *fs,
                                _("virtiofs does not support wrpolicy"));
                 return -1;
             }
+            if (fs->readonly) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                               _("readonly mode cannot be set for extrenally started virtiofsd"));
+                return -1;
+            }
         }
 
         if (fs->model != VIR_DOMAIN_FS_MODEL_DEFAULT) {
-- 
2.49.0