[PATCH] qemu: Fix startupPolicy for snapshot-revert

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Currently, startupPolicy='requisite' was determining cold boot
by migrateForm != NULL. That means, if domain was started up
with migrateForm set we didn't require disk source path and allowed
it to be dropped. However, on snapshot-revert domain wasn't migrated
but according to documentation, requisite should drop disk source
as well.
---

Related BZ: https://bugzilla.redhat.com/show_bug.cgi?id=798938

 src/qemu/qemu_driver.c    |   16 +++++++++-------
 src/qemu/qemu_migration.c |    2 +-
 src/qemu/qemu_process.c   |    3 ++-
 src/qemu/qemu_process.h   |    1 +
 4 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index ddb381a..b17b52c 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -1358,7 +1358,7 @@ static virDomainPtr qemudDomainCreate(virConnectPtr conn, const char *xml,
     if (qemuDomainObjBeginJobWithDriver(driver, vm, QEMU_JOB_MODIFY) < 0)
         goto cleanup; /* XXXX free the 'vm' we created ? */
 
-    if (qemuProcessStart(conn, driver, vm, NULL,
+    if (qemuProcessStart(conn, driver, vm, NULL, true,
                          (flags & VIR_DOMAIN_START_PAUSED) != 0,
                          (flags & VIR_DOMAIN_START_AUTODESTROY) != 0,
                          -1, NULL, NULL, VIR_NETDEV_VPORT_PROFILE_OP_CREATE) < 0) {
@@ -4107,8 +4107,9 @@ qemuDomainSaveImageStartVM(virConnectPtr conn,
     }
 
     /* Set the migration source and start it up. */
-    ret = qemuProcessStart(conn, driver, vm, "stdio", true,
-                           false, *fd, path, NULL, VIR_NETDEV_VPORT_PROFILE_OP_RESTORE);
+    ret = qemuProcessStart(conn, driver, vm, "stdio", false, true,
+                           false, *fd, path, NULL,
+                           VIR_NETDEV_VPORT_PROFILE_OP_RESTORE);
 
     if (intermediatefd != -1) {
         if (ret < 0) {
@@ -4709,8 +4710,9 @@ qemuDomainObjStart(virConnectPtr conn,
         }
     }
 
-    ret = qemuProcessStart(conn, driver, vm, NULL, start_paused,
-                           autodestroy, -1, NULL, NULL, VIR_NETDEV_VPORT_PROFILE_OP_CREATE);
+    ret = qemuProcessStart(conn, driver, vm, NULL, true, start_paused,
+                           autodestroy, -1, NULL, NULL,
+                           VIR_NETDEV_VPORT_PROFILE_OP_CREATE);
     virDomainAuditStart(vm, "booted", ret >= 0);
     if (ret >= 0) {
         virDomainEventPtr event =
@@ -10788,7 +10790,7 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot,
                 virDomainObjAssignDef(vm, config, false);
 
             rc = qemuProcessStart(snapshot->domain->conn, driver, vm, NULL,
-                                  true, false, -1, NULL, snap,
+                                  false, true, false, -1, NULL, snap,
                                   VIR_NETDEV_VPORT_PROFILE_OP_CREATE);
             virDomainAuditStart(vm, "from-snapshot", rc >= 0);
             detail = VIR_DOMAIN_EVENT_STARTED_FROM_SNAPSHOT;
@@ -10878,7 +10880,7 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot,
             if (event)
                 qemuDomainEventQueue(driver, event);
             rc = qemuProcessStart(snapshot->domain->conn, driver, vm, NULL,
-                                  paused, false, -1, NULL, NULL,
+                                  false, paused, false, -1, NULL, NULL,
                                   VIR_NETDEV_VPORT_PROFILE_OP_CREATE);
             virDomainAuditStart(vm, "from-snapshot", rc >= 0);
             if (rc < 0) {
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 77d40c0..92d046a 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1229,7 +1229,7 @@ qemuMigrationPrepareAny(struct qemud_driver *driver,
     /* Start the QEMU daemon, with the same command-line arguments plus
      * -incoming $migrateFrom
      */
-    if (qemuProcessStart(dconn, driver, vm, migrateFrom, true,
+    if (qemuProcessStart(dconn, driver, vm, migrateFrom, false, true,
                          true, dataFD[0], NULL, NULL,
                          VIR_NETDEV_VPORT_PROFILE_OP_MIGRATE_IN_START) < 0) {
         virDomainAuditStart(vm, "migrated", false);
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 7b99814..502de89 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -3072,6 +3072,7 @@ int qemuProcessStart(virConnectPtr conn,
                      struct qemud_driver *driver,
                      virDomainObjPtr vm,
                      const char *migrateFrom,
+                     bool cold_boot,
                      bool start_paused,
                      bool autodestroy,
                      int stdin_fd,
@@ -3227,7 +3228,7 @@ int qemuProcessStart(virConnectPtr conn,
         goto cleanup;
 
     VIR_DEBUG("Checking for CDROM and floppy presence");
-    if (qemuDomainCheckDiskPresence(driver, vm, migrateFrom != NULL) < 0)
+    if (qemuDomainCheckDiskPresence(driver, vm, cold_boot) < 0)
         goto cleanup;
 
     VIR_DEBUG("Setting up domain cgroup (if required)");
diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h
index 2c1d0b5..761db6f 100644
--- a/src/qemu/qemu_process.h
+++ b/src/qemu/qemu_process.h
@@ -48,6 +48,7 @@ int qemuProcessStart(virConnectPtr conn,
                      struct qemud_driver *driver,
                      virDomainObjPtr vm,
                      const char *migrateFrom,
+                     bool cold_boot,
                      bool start_paused,
                      bool autodestroy,
                      int stdin_fd,
-- 
1.7.8.5

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