[libvirt] [PATCH] Taint domains using cdrom-passthrough

[John Ferlan]

https://bugzilla.redhat.com/show_bug.cgi?id=976387

For a domain configured using the host cdrom, we should taint the domain
due to problems encountered when the host and guest try to control the tray.

Signed-off-by: John Ferlan <jferlan at redhat.com>
---
 src/conf/domain_conf.c | 3 ++-
 src/conf/domain_conf.h | 1 +
 src/qemu/qemu_domain.c | 6 ++++++
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index add857c..a67e200 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -101,7 +101,8 @@ VIR_ENUM_IMPL(virDomainTaint, VIR_DOMAIN_TAINT_LAST,
               "disk-probing",
               "external-launch",
               "host-cpu",
-              "hook-script");
+              "hook-script",
+              "cdrom-passthrough");
 
 VIR_ENUM_IMPL(virDomainVirt, VIR_DOMAIN_VIRT_LAST,
               "qemu",
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 2cd105a7..0867e8b 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2280,6 +2280,7 @@ typedef enum {
     VIR_DOMAIN_TAINT_EXTERNAL_LAUNCH,  /* Externally launched guest domain */
     VIR_DOMAIN_TAINT_HOST_CPU,         /* Host CPU passthrough in use */
     VIR_DOMAIN_TAINT_HOOK,             /* Domain (possibly) changed via hook script */
+    VIR_DOMAIN_TAINT_CDROM_PASSTHROUGH,/* CDROM passthrough */
 
     VIR_DOMAIN_TAINT_LAST
 } virDomainTaintFlags;
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index fa8229f..b66ee89 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -2031,6 +2031,12 @@ void qemuDomainObjCheckDiskTaint(virQEMUDriverPtr driver,
         qemuDomainObjTaint(driver, obj, VIR_DOMAIN_TAINT_HIGH_PRIVILEGES,
                            logFD);
 
+    if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM &&
+        virStorageSourceGetActualType(disk->src) == VIR_STORAGE_TYPE_BLOCK &&
+        disk->src->path)
+        qemuDomainObjTaint(driver, obj, VIR_DOMAIN_TAINT_CDROM_PASSTHROUGH,
+                           logFD);
+
     virObjectUnref(cfg);
 }
 
-- 
2.1.0