Re: [libvirt PATCH 7/7] qemu_migration: Implement VIR_MIGRATE_ZEROCOPY flag

Resolves: https://gitlab.com/libvirt/libvirt/-/issues/306 Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com&gt; --- src/qemu/qemu_migration.c | 21 +++++++++++++++++++++ src/qemu/qemu_migration.h | 1 + src/qemu/qemu_migration_params.c | 6 ++++++ src/qemu/qemu_migration_params.h | 1 + 4 files changed, 29 insertions(+) diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index 272f1b1b59..02a465f6cb 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -2634,6 +2634,12 @@ qemuMigrationSrcBeginPhase(virQEMUDriver *driver, } } + if (flags & VIR_MIGRATE_ZEROCOPY && !(flags & VIR_MIGRATE_PARALLEL)) { + virReportError(VIR_ERR_OPERATION_INVALID, "%s", + _("zero-copy is only available for parallel migration")); + return NULL; + }

diff --git a/src/qemu/qemu_migration_params.c b/src/qemu/qemu_migration_params.c index 4e83d8d8bd..cc66ed8229 100644 --- a/src/qemu/qemu_migration_params.c +++ b/src/qemu/qemu_migration_params.c @@ -94,6 +94,7 @@ VIR_ENUM_IMPL(qemuMigrationCapability, "multifd", "dirty-bitmaps", "return-path", + "zero-copy-send", );