[libvirt] [PATCH] virsh: expose change-protection during migration

* tools/virsh.c (doMigrate): Add --change-protection flag. * tools/virsh.pod (migrate): Document it. --- As promised here: https://www.redhat.com/archives/libvir-list/2011-July/msg01919.html tools/virsh.c | 4 ++++ tools/virsh.pod | 9 +++++++-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index 113124f..34036f9 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -4830,6 +4830,8 @@ static const vshCmdOptDef opts_migrate[] = { {"suspend", VSH_OT_BOOL, 0, N_("do not restart the domain on the destination host")}, {"copy-storage-all", VSH_OT_BOOL, 0, N_("migration with non-shared storage with full disk copy")}, {"copy-storage-inc", VSH_OT_BOOL, 0, N_("migration with non-shared storage with incremental copy (same base image shared between source and destination)")}, + {"change-protection", VSH_OT_BOOL, 0, + N_("prevent any configuration changes to source until migration ends)")}, {"verbose", VSH_OT_BOOL, 0, N_("display the progress of migration")}, {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")}, {"desturi", VSH_OT_DATA, VSH_OFLAG_REQ, N_("connection URI of the destination host as seen from the client(normal migration) or source(p2p migration)")}, @@ -4906,6 +4908,8 @@ doMigrate (void *opaque) if (vshCommandOptBool (cmd, "copy-storage-inc")) flags |= VIR_MIGRATE_NON_SHARED_INC; + if (vshCommandOptBool (cmd, "change-protection")) + flags |= VIR_MIGRATE_CHANGE_PROTECTION; if (xmlfile && virFileReadAll(xmlfile, 8192, &xml) < 0) diff --git a/tools/virsh.pod b/tools/virsh.pod index e9aaa80..6c3c960 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -564,8 +564,9 @@ type attribute for the <domain> element of XML. =item B<migrate> [I<--live>] [I<--direct>] [I<--p2p> [I<--tunnelled>]] [I<--persistent>] [I<--undefinesource>] [I<--suspend>] [I<--copy-storage-all>] -[I<--copy-storage-inc>] [I<--verbose>] I<domain-id> I<desturi> [I<migrateuri>] -[I<dname>] [I<--timeout> B<seconds>] [I<--xml> B<file>] +[I<--copy-storage-inc>] [I<--change-protection>] [I<--verbose>] +I<domain-id> I<desturi> [I<migrateuri>] [I<dname>] +[I<--timeout> B<seconds>] [I<--xml> B<file>] Migrate domain to another host. Add I<--live> for live migration; I<--p2p> for peer-2-peer migration; I<--direct> for direct migration; or I<--tunnelled> @@ -575,6 +576,10 @@ and I<--suspend> leaves the domain paused on the destination host. I<--copy-storage-all> indicates migration with non-shared storage with full disk copy, I<--copy-storage-inc> indicates migration with non-shared storage with incremental copy (same base image shared between source and destination). +I<--change-protection> enforces that no incompatible configuration changes +will be made to the domain while the migration is underway; this flag is +implicitly enabled when supported by the hypervisor, but can be used to +reject the migration if the hypervisor lacks change protection support. I<--verbose> displays the progress of migration. The I<desturi> is the connection URI of the destination host, and -- 1.7.4.4