qemu: Add virConnectPtr back to some migration methods

This partially reverts 82592551cb8c4112cfa2264d50b8dce5349533d5.

When migrating a domain, qemuMigrationDstPrepareAny() is called
which eventually calls qemuProcessLaunch(conn = NULL, flags =
VIR_QEMU_PROCESS_START_AUTODESTROY); But the very first thing
that qemuProcessLaunch does is check if AUTODESTROY flag is set
and @conn is not NULL. Well, it is.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

src/qemu/qemu_driver.c

@@ -12138,7 +12138,7 @@ qemuDomainMigratePrepareTunnel(virConnectPtr dconn,
     if (virDomainMigratePrepareTunnelEnsureACL(dconn, def) < 0)
         goto cleanup;
 
-    ret = qemuMigrationDstPrepareTunnel(driver,
+    ret = qemuMigrationDstPrepareTunnel(driver, dconn,
                                         NULL, 0, NULL, NULL, /* No cookies in v2 */
                                         st, &def, origname, flags);
 
@@ -12201,7 +12201,7 @@ qemuDomainMigratePrepare2(virConnectPtr dconn,
      * length was not sufficiently large, causing failures
      * migrating between old & new libvirtd
      */
-    ret = qemuMigrationDstPrepareDirect(driver,
+    ret = qemuMigrationDstPrepareDirect(driver, dconn,
                                         NULL, 0, NULL, NULL, /* No cookies */
                                         uri_in, uri_out,
                                         &def, origname, NULL, 0, NULL, 0,
@@ -12439,7 +12439,7 @@ qemuDomainMigratePrepare3(virConnectPtr dconn,
     if (virDomainMigratePrepare3EnsureACL(dconn, def) < 0)
         goto cleanup;
 
-    ret = qemuMigrationDstPrepareDirect(driver,
+    ret = qemuMigrationDstPrepareDirect(driver, dconn,
                                         cookiein, cookieinlen,
                                         cookieout, cookieoutlen,
                                         uri_in, uri_out,
@@ -12525,7 +12525,7 @@ qemuDomainMigratePrepare3Params(virConnectPtr dconn,
     if (virDomainMigratePrepare3ParamsEnsureACL(dconn, def) < 0)
         goto cleanup;
 
-    ret = qemuMigrationDstPrepareDirect(driver,
+    ret = qemuMigrationDstPrepareDirect(driver, dconn,
                                         cookiein, cookieinlen,
                                         cookieout, cookieoutlen,
                                         uri_in, uri_out,
@@ -12574,7 +12574,7 @@ qemuDomainMigratePrepareTunnel3(virConnectPtr dconn,
     if (virDomainMigratePrepareTunnel3EnsureACL(dconn, def) < 0)
         goto cleanup;
 
-    ret = qemuMigrationDstPrepareTunnel(driver,
+    ret = qemuMigrationDstPrepareTunnel(driver, dconn,
                                         cookiein, cookieinlen,
                                         cookieout, cookieoutlen,
                                         st, &def, origname, flags);
@@ -12627,7 +12627,7 @@ qemuDomainMigratePrepareTunnel3Params(virConnectPtr dconn,
     if (virDomainMigratePrepareTunnel3ParamsEnsureACL(dconn, def) < 0)
         goto cleanup;
 
-    ret = qemuMigrationDstPrepareTunnel(driver,
+    ret = qemuMigrationDstPrepareTunnel(driver, dconn,
                                         cookiein, cookieinlen,
                                         cookieout, cookieoutlen,
                                         st, &def, origname, flags);

src/qemu/qemu_migration.c

@@ -2600,6 +2600,7 @@ qemuMigrationParamsResetTLS(virQEMUDriverPtr driver,
 
 static int
 qemuMigrationDstPrepareAny(virQEMUDriverPtr driver,
+                           virConnectPtr dconn,
                            const char *cookiein,
                            int cookieinlen,
                            char **cookieout,
@@ -2809,7 +2810,7 @@ qemuMigrationDstPrepareAny(virQEMUDriverPtr driver,
     if (qemuProcessPrepareHost(driver, vm, startFlags) < 0)
         goto stopjob;
 
-    rv = qemuProcessLaunch(NULL, driver, vm, QEMU_ASYNC_JOB_MIGRATION_IN,
+    rv = qemuProcessLaunch(dconn, driver, vm, QEMU_ASYNC_JOB_MIGRATION_IN,
                            incoming, NULL,
                            VIR_NETDEV_VPORT_PROFILE_OP_MIGRATE_IN_START,
                            startFlags);
@@ -2993,6 +2994,7 @@ qemuMigrationDstPrepareAny(virQEMUDriverPtr driver,
  */
 int
 qemuMigrationDstPrepareTunnel(virQEMUDriverPtr driver,
+                              virConnectPtr dconn,
                               const char *cookiein,
                               int cookieinlen,
                               char **cookieout,
@@ -3005,10 +3007,10 @@ qemuMigrationDstPrepareTunnel(virQEMUDriverPtr driver,
     qemuMigrationCompressionPtr compression = NULL;
     int ret;
 
-    VIR_DEBUG("driver=%p, cookiein=%s, cookieinlen=%d, "
+    VIR_DEBUG("driver=%p, dconn=%p, cookiein=%s, cookieinlen=%d, "
               "cookieout=%p, cookieoutlen=%p, st=%p, def=%p, "
               "origname=%s, flags=0x%lx",
-              driver, NULLSTR(cookiein), cookieinlen,
+              driver, dconn, NULLSTR(cookiein), cookieinlen,
               cookieout, cookieoutlen, st, *def, origname, flags);
 
     if (st == NULL) {
@@ -3020,7 +3022,7 @@ qemuMigrationDstPrepareTunnel(virQEMUDriverPtr driver,
     if (!(compression = qemuMigrationAnyCompressionParse(NULL, 0, flags)))
         return -1;
 
-    ret = qemuMigrationDstPrepareAny(driver, cookiein, cookieinlen,
+    ret = qemuMigrationDstPrepareAny(driver, dconn, cookiein, cookieinlen,
                                      cookieout, cookieoutlen, def, origname,
                                      st, NULL, 0, false, NULL, 0, NULL, 0,
                                      compression, flags);
@@ -3054,6 +3056,7 @@ qemuMigrationAnyParseURI(const char *uri, bool *wellFormed)
 
 int
 qemuMigrationDstPrepareDirect(virQEMUDriverPtr driver,
+                              virConnectPtr dconn,
                               const char *cookiein,
                               int cookieinlen,
                               char **cookieout,
@@ -3077,11 +3080,11 @@ qemuMigrationDstPrepareDirect(virQEMUDriverPtr driver,
     virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
     const char *migrateHost = cfg->migrateHost;
 
-    VIR_DEBUG("driver=%p, cookiein=%s, cookieinlen=%d, "
+    VIR_DEBUG("driver=%p, dconn=%p, cookiein=%s, cookieinlen=%d, "
               "cookieout=%p, cookieoutlen=%p, uri_in=%s, uri_out=%p, "
               "def=%p, origname=%s, listenAddress=%s, "
               "nmigrate_disks=%zu, migrate_disks=%p, nbdPort=%d, flags=0x%lx",
-              driver, NULLSTR(cookiein), cookieinlen,
+              driver, dconn, NULLSTR(cookiein), cookieinlen,
               cookieout, cookieoutlen, NULLSTR(uri_in), uri_out,
               *def, origname, NULLSTR(listenAddress),
               nmigrate_disks, migrate_disks, nbdPort, flags);
@@ -3185,7 +3188,7 @@ qemuMigrationDstPrepareDirect(virQEMUDriverPtr driver,
     if (*uri_out)
         VIR_DEBUG("Generated uri_out=%s", *uri_out);
 
-    ret = qemuMigrationDstPrepareAny(driver, cookiein, cookieinlen,
+    ret = qemuMigrationDstPrepareAny(driver, dconn, cookiein, cookieinlen,
                                      cookieout, cookieoutlen, def, origname,
                                      NULL, uri ? uri->scheme : "tcp",
                                      port, autoPort, listenAddress,

src/qemu/qemu_migration.h

@@ -170,6 +170,7 @@ qemuMigrationAnyPrepareDef(virQEMUDriverPtr driver,
 
 int
 qemuMigrationDstPrepareTunnel(virQEMUDriverPtr driver,
+                              virConnectPtr dconn,
                               const char *cookiein,
                               int cookieinlen,
                               char **cookieout,
@@ -181,6 +182,7 @@ qemuMigrationDstPrepareTunnel(virQEMUDriverPtr driver,
 
 int
 qemuMigrationDstPrepareDirect(virQEMUDriverPtr driver,
+                              virConnectPtr dconn,
                               const char *cookiein,
                               int cookieinlen,
                               char **cookieout,