[PATCH 1/7] qemu: tpm: Pass parameter indicating reason for domain removal

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Pass a parameter indicating the reason for the removal of a domain so
that the TPM driver can determine whether to delete the TPM state
directory structure. It may only do this when a domain is undefined as
part of a command like 'virsh undefine' and it must not do this when a
VM is migrated across a shared storage setup for the TPM and it is
removed from the source host. Therefore, the call locations that
correspond to a 'virsh undefine' pass the value
'QEMU_DOMAIN_UNDEFINE_DOMAIN' while all other ones pass the unspecific
value 'QEMU_DOMAIN_UNDEFINE_UNSPEC'.

Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
---
 src/qemu/qemu_domain.c    | 12 +++++++-----
 src/qemu/qemu_domain.h    |  8 +++++++-
 src/qemu/qemu_driver.c    | 20 ++++++++++----------
 src/qemu/qemu_extdevice.c |  5 +++--
 src/qemu/qemu_extdevice.h |  3 ++-
 src/qemu/qemu_migration.c | 13 +++++++------
 src/qemu/qemu_process.c   |  4 ++--
 src/qemu/qemu_snapshot.c  |  4 ++--
 src/qemu/qemu_tpm.c       |  9 ++++++---
 src/qemu/qemu_tpm.h       |  3 ++-
 10 files changed, 48 insertions(+), 33 deletions(-)

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 45f00e162d..ac8ab142b5 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -7143,7 +7143,8 @@ qemuDomainSnapshotDiscardAllMetadata(virQEMUDriver *driver,
 
 static void
 qemuDomainRemoveInactiveCommon(virQEMUDriver *driver,
-                               virDomainObj *vm)
+                               virDomainObj *vm,
+                               qemuDomainUndefineReason undefReason)
 {
     g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
     g_autofree char *snapDir = NULL;
@@ -7169,7 +7170,7 @@ qemuDomainRemoveInactiveCommon(virQEMUDriver *driver,
         if (rmdir(chkDir) < 0 && errno != ENOENT)
             VIR_WARN("unable to remove checkpoint directory %s", chkDir);
     }
-    qemuExtDevicesCleanupHost(driver, vm->def);
+    qemuExtDevicesCleanupHost(driver, vm->def, undefReason);
 }
 
 
@@ -7180,14 +7181,15 @@ qemuDomainRemoveInactiveCommon(virQEMUDriver *driver,
  */
 void
 qemuDomainRemoveInactive(virQEMUDriver *driver,
-                         virDomainObj *vm)
+                         virDomainObj *vm,
+                         qemuDomainUndefineReason undefReason)
 {
     if (vm->persistent) {
         /* Short-circuit, we don't want to remove a persistent domain */
         return;
     }
 
-    qemuDomainRemoveInactiveCommon(driver, vm);
+    qemuDomainRemoveInactiveCommon(driver, vm, undefReason);
 
     virDomainObjListRemove(driver->domains, vm);
 }
@@ -7209,7 +7211,7 @@ qemuDomainRemoveInactiveLocked(virQEMUDriver *driver,
         return;
     }
 
-    qemuDomainRemoveInactiveCommon(driver, vm);
+    qemuDomainRemoveInactiveCommon(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
 
     virDomainObjListRemoveLocked(driver->domains, vm);
 }
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index 592ee9805b..8e5dacf624 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -682,8 +682,14 @@ int qemuDomainMomentDiscardAll(void *payload,
 int qemuDomainSnapshotDiscardAllMetadata(virQEMUDriver *driver,
                                          virDomainObj *vm);
 
+typedef enum {
+    QEMU_DOMAIN_UNDEFINE_UNSPEC = 0,
+    QEMU_DOMAIN_UNDEFINE_DOMAIN,    /* virsh undefine type of command */
+} qemuDomainUndefineReason;
+
 void qemuDomainRemoveInactive(virQEMUDriver *driver,
-                              virDomainObj *vm);
+                              virDomainObj *vm,
+                              qemuDomainUndefineReason undefReason);
 
 void
 qemuDomainRemoveInactiveLocked(virQEMUDriver *driver,
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 637a748c85..fe5bbe2216 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -1624,7 +1624,7 @@ static virDomainPtr qemuDomainCreateXML(virConnectPtr conn,
         goto cleanup;
 
     if (qemuProcessBeginJob(vm, VIR_DOMAIN_JOB_OPERATION_START, flags) < 0) {
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
         goto cleanup;
     }
 
@@ -1633,7 +1633,7 @@ static virDomainPtr qemuDomainCreateXML(virConnectPtr conn,
                          VIR_NETDEV_VPORT_PROFILE_OP_CREATE,
                          start_flags) < 0) {
         virDomainAuditStart(vm, "booted", false);
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
         qemuProcessEndJob(vm);
         goto cleanup;
     }
@@ -2119,7 +2119,7 @@ qemuDomainDestroyFlags(virDomainPtr dom,
     ret = 0;
  endjob:
     if (ret == 0)
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_DOMAIN);
     qemuDomainObjEndJob(vm);
 
  cleanup:
@@ -2738,7 +2738,7 @@ qemuDomainSaveInternal(virQEMUDriver *driver,
     }
     qemuDomainObjEndAsyncJob(vm);
     if (ret == 0)
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
 
  cleanup:
     virQEMUSaveDataFree(data);
@@ -3285,7 +3285,7 @@ qemuDomainCoreDumpWithFormat(virDomainPtr dom,
 
     qemuDomainObjEndAsyncJob(vm);
     if (ret == 0 && flags & VIR_DUMP_CRASH)
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
 
  cleanup:
     virDomainObjEndAPI(&vm);
@@ -3597,7 +3597,7 @@ processGuestPanicEvent(virQEMUDriver *driver,
  endjob:
     qemuDomainObjEndAsyncJob(vm);
     if (removeInactive)
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
 }
 
 
@@ -4075,7 +4075,7 @@ processMonitorEOFEvent(virQEMUDriver *driver,
     virObjectEventStateQueue(driver->domainEventState, event);
 
  endjob:
-    qemuDomainRemoveInactive(driver, vm);
+    qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
     qemuDomainObjEndJob(vm);
 }
 
@@ -6005,7 +6005,7 @@ qemuDomainRestoreInternal(virConnectPtr conn,
     virFileWrapperFdFree(wrapperFd);
     virQEMUSaveDataFree(data);
     if (vm && ret < 0)
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
     virDomainObjEndAPI(&vm);
     return ret;
 }
@@ -6696,7 +6696,7 @@ qemuDomainDefineXMLFlags(virConnectPtr conn,
         } else {
             /* Brand new domain. Remove it */
             VIR_INFO("Deleting domain '%s'", vm->def->name);
-            qemuDomainRemoveInactive(driver, vm);
+            qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
         }
     }
 
@@ -6836,7 +6836,7 @@ qemuDomainUndefineFlags(virDomainPtr dom,
      */
     vm->persistent = 0;
     if (!virDomainObjIsActive(vm))
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_DOMAIN);
 
     ret = 0;
  endjob:
diff --git a/src/qemu/qemu_extdevice.c b/src/qemu/qemu_extdevice.c
index b8e3c1000a..b5bfd6cfd2 100644
--- a/src/qemu/qemu_extdevice.c
+++ b/src/qemu/qemu_extdevice.c
@@ -151,7 +151,8 @@ qemuExtDevicesPrepareHost(virQEMUDriver *driver,
 
 void
 qemuExtDevicesCleanupHost(virQEMUDriver *driver,
-                          virDomainDef *def)
+                          virDomainDef *def,
+                          qemuDomainUndefineReason undefReason)
 {
     size_t i;
 
@@ -159,7 +160,7 @@ qemuExtDevicesCleanupHost(virQEMUDriver *driver,
         return;
 
     for (i = 0; i < def->ntpms; i++) {
-        qemuExtTPMCleanupHost(def->tpms[i]);
+        qemuExtTPMCleanupHost(def->tpms[i], undefReason);
     }
 }
 
diff --git a/src/qemu/qemu_extdevice.h b/src/qemu/qemu_extdevice.h
index 43d2a4dfff..252238c47f 100644
--- a/src/qemu/qemu_extdevice.h
+++ b/src/qemu/qemu_extdevice.h
@@ -41,7 +41,8 @@ int qemuExtDevicesPrepareHost(virQEMUDriver *driver,
     G_GNUC_WARN_UNUSED_RESULT;
 
 void qemuExtDevicesCleanupHost(virQEMUDriver *driver,
-                               virDomainDef *def)
+                               virDomainDef *def,
+                               qemuDomainUndefineReason undefReason)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 
 int qemuExtDevicesStart(virQEMUDriver *driver,
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index b3b25d78b4..b15c1ccc22 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -3408,7 +3408,7 @@ qemuMigrationDstPrepareFresh(virQEMUDriver *driver,
          * and there is no 'goto cleanup;' in the middle of those */
         VIR_FREE(priv->origname);
         virDomainObjRemoveTransientDef(vm);
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
     }
     virDomainObjEndAPI(&vm);
     virErrorRestore(&origErr);
@@ -4054,7 +4054,8 @@ qemuMigrationSrcConfirm(virQEMUDriver *driver,
             virDomainDeleteConfig(cfg->configDir, cfg->autostartDir, vm);
             vm->persistent = 0;
         }
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm,
+                                 QEMU_DOMAIN_UNDEFINE_UNSPEC);
     }
 
  cleanup:
@@ -6003,7 +6004,7 @@ qemuMigrationSrcPerformJob(virQEMUDriver *driver,
             virDomainDeleteConfig(cfg->configDir, cfg->autostartDir, vm);
             vm->persistent = 0;
         }
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
     }
 
     virErrorRestore(&orig_err);
@@ -6130,7 +6131,7 @@ qemuMigrationSrcPerformPhase(virQEMUDriver *driver,
     }
 
     if (!virDomainObjIsActive(vm))
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
 
     return ret;
 }
@@ -6667,7 +6668,7 @@ qemuMigrationDstFinishActive(virQEMUDriver *driver,
     }
 
     if (!virDomainObjIsActive(vm))
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
 
     virErrorRestore(&orig_err);
     return NULL;
@@ -6805,7 +6806,7 @@ qemuMigrationProcessUnattended(virQEMUDriver *driver,
     qemuMigrationJobFinish(vm);
 
     if (!virDomainObjIsActive(vm))
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
 }
 
 
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 5c8413a6b6..cd038195d3 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8460,7 +8460,7 @@ qemuProcessAutoDestroy(virDomainObj *dom,
                                      VIR_DOMAIN_EVENT_STOPPED,
                                      VIR_DOMAIN_EVENT_STOPPED_DESTROYED);
 
-    qemuDomainRemoveInactive(driver, dom);
+    qemuDomainRemoveInactive(driver, dom, QEMU_DOMAIN_UNDEFINE_UNSPEC);
 
     qemuDomainObjEndJob(dom);
 
@@ -8926,7 +8926,7 @@ qemuProcessReconnect(void *opaque)
     if (jobStarted)
         qemuDomainObjEndJob(obj);
     if (!virDomainObjIsActive(obj))
-        qemuDomainRemoveInactive(driver, obj);
+        qemuDomainRemoveInactive(driver, obj, QEMU_DOMAIN_UNDEFINE_UNSPEC);
     virDomainObjEndAPI(&obj);
     virIdentitySetCurrent(NULL);
     return;
diff --git a/src/qemu/qemu_snapshot.c b/src/qemu/qemu_snapshot.c
index 6033deafed..2a4d2a9d9e 100644
--- a/src/qemu/qemu_snapshot.c
+++ b/src/qemu/qemu_snapshot.c
@@ -2103,7 +2103,7 @@ qemuSnapshotRevertInactive(virDomainObj *vm,
     }
 
     if (qemuSnapshotInternalRevertInactive(driver, vm, snap) < 0) {
-        qemuDomainRemoveInactive(driver, vm);
+        qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
         return -1;
     }
 
@@ -2125,7 +2125,7 @@ qemuSnapshotRevertInactive(virDomainObj *vm,
                               start_flags);
         virDomainAuditStart(vm, "from-snapshot", rc >= 0);
         if (rc < 0) {
-            qemuDomainRemoveInactive(driver, vm);
+            qemuDomainRemoveInactive(driver, vm, QEMU_DOMAIN_UNDEFINE_UNSPEC);
             return -1;
         }
         detail = VIR_DOMAIN_EVENT_STARTED_FROM_SNAPSHOT;
diff --git a/src/qemu/qemu_tpm.c b/src/qemu/qemu_tpm.c
index 584c787b70..d2ae3b9824 100644
--- a/src/qemu/qemu_tpm.c
+++ b/src/qemu/qemu_tpm.c
@@ -701,11 +701,13 @@ qemuTPMEmulatorInitPaths(virDomainTPMDef *tpm,
 /**
  * qemuTPMEmulatorCleanupHost:
  * @tpm: TPM definition
+ * @undefReason: The reason why the domain is removed
  *
  * Clean up persistent storage for the swtpm.
  */
 static void
-qemuTPMEmulatorCleanupHost(virDomainTPMDef *tpm)
+qemuTPMEmulatorCleanupHost(virDomainTPMDef *tpm,
+                           qemuDomainUndefineReason undefReason G_GNUC_UNUSED)
 {
     if (!tpm->data.emulator.persistent_state)
         qemuTPMEmulatorDeleteStorage(tpm);
@@ -1003,9 +1005,10 @@ qemuExtTPMPrepareHost(virQEMUDriver *driver,
 
 
 void
-qemuExtTPMCleanupHost(virDomainTPMDef *tpm)
+qemuExtTPMCleanupHost(virDomainTPMDef *tpm,
+                      qemuDomainUndefineReason undefReason)
 {
-    qemuTPMEmulatorCleanupHost(tpm);
+    qemuTPMEmulatorCleanupHost(tpm, undefReason);
 }
 
 
diff --git a/src/qemu/qemu_tpm.h b/src/qemu/qemu_tpm.h
index 9951f025a6..37c8e080d7 100644
--- a/src/qemu/qemu_tpm.h
+++ b/src/qemu/qemu_tpm.h
@@ -35,7 +35,8 @@ int qemuExtTPMPrepareHost(virQEMUDriver *driver,
     ATTRIBUTE_NONNULL(3)
     G_GNUC_WARN_UNUSED_RESULT;
 
-void qemuExtTPMCleanupHost(virDomainTPMDef *tpm)
+void qemuExtTPMCleanupHost(virDomainTPMDef *tpm,
+                           qemuDomainUndefineReason undefReason)
     ATTRIBUTE_NONNULL(1);
 
 int qemuExtTPMStart(virQEMUDriver *driver,
-- 
2.37.1




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