[PATCH RFC 3/9] qemu: Add function to get migration params for save
Introduce qemuMigrationParamsForMappedSave() to create a
qemuMigrationParams object initialized with appropriate migration
capabilities and parameters for a save operation using mapped-ram.
Note that mapped-ram also requires the multifd capability. For
now, the number of multifd channels is set to 1. Future work
to support parallel save/restore can set the number of channels
specified by the user.
Signed-off-by: Jim Fehlig <jfehlig(a)suse.com>
---
src/qemu/qemu_migration_params.c | 19 +++++++++++++++++++
src/qemu/qemu_migration_params.h | 3 +++
2 files changed, 22 insertions(+)
diff --git a/src/qemu/qemu_migration_params.c b/src/qemu/qemu_migration_params.c
index 201286e58c..96698bde9f 100644
--- a/src/qemu/qemu_migration_params.c
+++ b/src/qemu/qemu_migration_params.c
@@ -781,6 +781,25 @@ qemuMigrationParamsFromFlags(virTypedParameterPtr params,
}
+qemuMigrationParams *
+qemuMigrationParamsForMappedSave(void)
+{
+ g_autoptr(qemuMigrationParams) saveParams = NULL;
+
+ if (!(saveParams = qemuMigrationParamsNew()))
+ return NULL;
+
+ if (virBitmapSetBit(saveParams->caps, QEMU_MIGRATION_CAP_MAPPED_RAM) < 0)
+ return NULL;
+ if (virBitmapSetBit(saveParams->caps, QEMU_MIGRATION_CAP_MULTIFD) < 0)
+ return NULL;
+ saveParams->params[QEMU_MIGRATION_PARAM_MULTIFD_CHANNELS].value.i = 1;
+ saveParams->params[QEMU_MIGRATION_PARAM_MULTIFD_CHANNELS].set = true;
+
+ return g_steal_pointer(&saveParams);
+}
+
+
int
qemuMigrationParamsDump(qemuMigrationParams *migParams,
virTypedParameterPtr *params,
diff --git a/src/qemu/qemu_migration_params.h b/src/qemu/qemu_migration_params.h
index a14b189b48..0f3ed07384 100644
--- a/src/qemu/qemu_migration_params.h
+++ b/src/qemu/qemu_migration_params.h
@@ -85,6 +85,9 @@ qemuMigrationParamsFromFlags(virTypedParameterPtr params,
unsigned int flags,
qemuMigrationParty party);
+qemuMigrationParams *
+qemuMigrationParamsForMappedSave(void);
+
int
qemuMigrationParamsDump(qemuMigrationParams *migParams,
virTypedParameterPtr *params,
--
2.44.0