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Introduce VIR_MIGRATE_COMPRESSED flag

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This flag may be used with migration APIs to request compression of
migration data.
This commit is contained in:
Jiri Denemark
2013-01-10 13:39:34 +01:00
parent 7ea8c5d140
commit ecfff1dab3
3 changed files with 13 additions and 2 deletions
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8
tools/virsh-domain.c
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@@ -8340,6 +8340,11 @@ static const vshCmdOptDef opts_migrate[] = {
.flags = 0,
.help = N_("display the progress of migration")
},
{.name = "compressed",
.type = VSH_OT_BOOL,
.flags = 0,
.help = N_("compress repeated pages during live migration")
},
{.name = "domain",
.type = VSH_OT_DATA,
.flags = VSH_OFLAG_REQ,
@@ -8430,6 +8435,9 @@ doMigrate(void *opaque)
if (vshCommandOptBool(cmd, "unsafe"))
flags |= VIR_MIGRATE_UNSAFE;
if (vshCommandOptBool(cmd, "compressed"))
flags |= VIR_MIGRATE_COMPRESSED;
if (vshCommandOptBool(cmd, "offline")) {
flags |= VIR_MIGRATE_OFFLINE;
}

6
tools/virsh.pod
View File

@@ -1043,7 +1043,7 @@ stats.
=item B<migrate> [I<--live>] [I<--offline>] [I<--direct>] [I<--p2p> [I<--tunnelled>]]
[I<--persistent>] [I<--undefinesource>] [I<--suspend>] [I<--copy-storage-all>]
[I<--copy-storage-inc>] [I<--change-protection>] [I<--unsafe>] [I<--verbose>]
I<domain> I<desturi> [I<migrateuri>] [I<dname>]
[I<--compressed>] I<domain> 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; <--p2p>
@@ -1064,7 +1064,9 @@ host. 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 explicitly
used to reject the migration if the hypervisor lacks change protection
support. I<--verbose> displays the progress of migration.
support. I<--verbose> displays the progress of migration. I<--compressed>
activates compression of memory pages that have to be transferred repeatedly
during live migration.
B<Note>: Individual hypervisors usually do not support all possible types of
migration. For example, QEMU does not support direct migration.