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[Qemu-devel] [PATCH v2 14/43] Add migration-capability boolean for postc
From: |
Dr. David Alan Gilbert (git) |
Subject: |
[Qemu-devel] [PATCH v2 14/43] Add migration-capability boolean for postcopy-ram. |
Date: |
Mon, 11 Aug 2014 15:29:30 +0100 |
From: "Dr. David Alan Gilbert" <address@hidden>
Signed-off-by: Dr. David Alan Gilbert <address@hidden>
---
include/migration/migration.h | 1 +
migration.c | 9 +++++++++
qapi-schema.json | 6 +++++-
3 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/include/migration/migration.h b/include/migration/migration.h
index 984d96c..ad02602 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -174,6 +174,7 @@ void migrate_add_blocker(Error *reason);
*/
void migrate_del_blocker(Error *reason);
+bool migrate_postcopy_ram(void);
bool migrate_rdma_pin_all(void);
bool migrate_zero_blocks(void);
diff --git a/migration.c b/migration.c
index c54d59e..bd7071a 100644
--- a/migration.c
+++ b/migration.c
@@ -632,6 +632,15 @@ bool migrate_rdma_pin_all(void)
return s->enabled_capabilities[MIGRATION_CAPABILITY_RDMA_PIN_ALL];
}
+bool migrate_postcopy_ram(void)
+{
+ MigrationState *s;
+
+ s = migrate_get_current();
+
+ return s->enabled_capabilities[MIGRATION_CAPABILITY_X_POSTCOPY_RAM];
+}
+
bool migrate_auto_converge(void)
{
MigrationState *s;
diff --git a/qapi-schema.json b/qapi-schema.json
index 341f417..77e57bd 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -491,10 +491,14 @@
# @auto-converge: If enabled, QEMU will automatically throttle down the guest
# to speed up convergence of RAM migration. (since 1.6)
#
+# @x-postcopy-ram: Start executing on the migration target before all of RAM
has been
+# migrated, pulling the remaining pages along as needed. NOTE: If the
+# migration fails during postcopy the VM will fail. (since 2.2)
+#
# Since: 1.2
##
{ 'enum': 'MigrationCapability',
- 'data': ['xbzrle', 'rdma-pin-all', 'auto-converge', 'zero-blocks'] }
+ 'data': ['xbzrle', 'rdma-pin-all', 'auto-converge', 'zero-blocks',
'x-postcopy-ram'] }
##
# @MigrationCapabilityStatus
--
1.9.3
- [Qemu-devel] [PATCH v2 05/43] Return path: Open a return path on QEMUFile for sockets, (continued)
- [Qemu-devel] [PATCH v2 05/43] Return path: Open a return path on QEMUFile for sockets, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 07/43] Migration commands, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 06/43] Return path: socket_writev_buffer: Block even on non-blocking fd's, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 08/43] Return path: Control commands, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 09/43] Return path: Send responses from destination to source, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 10/43] Return path: Source handling of return path, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 11/43] qemu_loadvm errors and debug, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 12/43] ram_debug_dump_bitmap: Dump a migration bitmap as text, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 13/43] Rework loadvm path for subloops, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 14/43] Add migration-capability boolean for postcopy-ram.,
Dr. David Alan Gilbert (git) <=
- [Qemu-devel] [PATCH v2 15/43] Add wrappers and handlers for sending/receiving the postcopy-ram migration messages., Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 16/43] QEMU_VM_CMD_PACKAGED: Send a packaged chunk of migration stream, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 17/43] migrate_init: Call from savevm, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 19/43] postcopy: OS support test, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 18/43] Allow savevm handlers to state whether they could go into postcopy, Dr. David Alan Gilbert (git), 2014/08/11
- [Qemu-devel] [PATCH v2 20/43] migrate_start_postcopy: Command to trigger transition to postcopy, Dr. David Alan Gilbert (git), 2014/08/11