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charset="utf-8" This allows to override the behaviour around recv_pages. Think of it like a "multifd_colo" child class of multifd. This will be used in the next commits to add colo support to multifd. Signed-off-by: Lukas Straub --- migration/meson.build | 1 + migration/multifd-colo.c | 39 +++++++++++++++++++++++++++++ migration/multifd-internal.h | 5 ++++ migration/multifd.c | 48 ++++++++++++++++++++++++++++-------- 4 files changed, 83 insertions(+), 10 deletions(-) create mode 100644 migration/multifd-colo.c diff --git a/migration/meson.build b/migration/meson.build index da1897fadf..22ab6c6d73 100644 --- a/migration/meson.build +++ b/migration/meson.build @@ -23,6 +23,7 @@ softmmu_ss.add(files( 'migration.c', 'multifd.c', 'multifd-zlib.c', + 'multifd-colo.c', 'options.c', 'postcopy-ram.c', 'savevm.c', diff --git a/migration/multifd-colo.c b/migration/multifd-colo.c new file mode 100644 index 0000000000..c035d15e87 --- /dev/null +++ b/migration/multifd-colo.c @@ -0,0 +1,39 @@ +/* + * multifd colo implementation + * + * Copyright (c) Lukas Straub + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "exec/target_page.h" +#include "exec/ramblock.h" +#include "qemu/error-report.h" +#include "qapi/error.h" +#include "ram.h" +#include "multifd.h" +#include "io/channel-socket.h" + +#define MULTIFD_INTERNAL +#include "multifd-internal.h" + +static int multifd_colo_recv_pages(MultiFDRecvParams *p, Error **errp) +{ + return multifd_recv_state->ops->recv_pages(p, errp); +} + +int multifd_colo_load_setup(Error **errp) +{ + int ret; + + ret =3D _multifd_load_setup(errp); + if (ret) { + return ret; + } + + multifd_recv_state->recv_pages =3D multifd_colo_recv_pages; + + return 0; +} diff --git a/migration/multifd-internal.h b/migration/multifd-internal.h index 6eeaa028e7..82357f1d88 100644 --- a/migration/multifd-internal.h +++ b/migration/multifd-internal.h @@ -29,6 +29,11 @@ struct MultiFDRecvState { uint64_t packet_num; /* multifd ops */ MultiFDMethods *ops; + /* overridable recv method */ + int (*recv_pages)(MultiFDRecvParams *p, Error **errp); }; =20 extern struct MultiFDRecvState *multifd_recv_state; + +int _multifd_load_setup(Error **errp); +int multifd_colo_load_setup(Error **errp); diff --git a/migration/multifd.c b/migration/multifd.c index f6bad69b6c..fb5e8859de 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -1126,7 +1126,7 @@ static void *multifd_recv_thread(void *opaque) qemu_mutex_unlock(&p->mutex); =20 if (p->normal_num) { - ret =3D multifd_recv_state->ops->recv_pages(p, &local_err); + ret =3D multifd_recv_state->recv_pages(p, &local_err); if (ret !=3D 0) { break; } @@ -1152,20 +1152,12 @@ static void *multifd_recv_thread(void *opaque) return NULL; } =20 -int multifd_load_setup(Error **errp) +int _multifd_load_setup(Error **errp) { int thread_count; uint32_t page_count =3D MULTIFD_PACKET_SIZE / qemu_target_page_size(); uint8_t i; =20 - /* - * Return successfully if multiFD recv state is already initialised - * or multiFD is not enabled. - */ - if (multifd_recv_state || !migrate_multifd()) { - return 0; - } - thread_count =3D migrate_multifd_channels(); multifd_recv_state =3D g_malloc0(sizeof(*multifd_recv_state)); multifd_recv_state->params =3D g_new0(MultiFDRecvParams, thread_count); @@ -1204,6 +1196,42 @@ int multifd_load_setup(Error **errp) return 0; } =20 +static int multifd_normal_recv_pages(MultiFDRecvParams *p, Error **errp) +{ + return multifd_recv_state->ops->recv_pages(p, errp); +} + +static int multifd_normal_load_setup(Error **errp) +{ + int ret; + + ret =3D _multifd_load_setup(errp); + if (ret) { + return ret; + } + + multifd_recv_state->recv_pages =3D multifd_normal_recv_pages; + + return 0; +} + +int multifd_load_setup(Error **errp) +{ + /* + * Return successfully if multiFD recv state is already initialised + * or multiFD is not enabled. + */ + if (multifd_recv_state || !migrate_multifd()) { + return 0; + } + + if (migrate_colo()) { + return multifd_colo_load_setup(errp); + } else { + return multifd_normal_load_setup(errp); + } +} + bool multifd_recv_all_channels_created(void) { int thread_count =3D migrate_multifd_channels(); --=20 2.39.2 --Sig_/UeWA3fgZuKPZcG=B0RQutvm Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEg/qxWKDZuPtyYo+kNasLKJxdslgFAmRZSUcACgkQNasLKJxd slilxQ//efkShKHosDryk+HwQgdBgyUOhP0XBaYnnWAFuNXUzvMIZph2mCAGe32e Cu6TaytuzfZSkWrcy2sprl2SjjH3IxkimLlMU0RJYUsMbkjfqK/DTw2worgSCvIq LPX09N1w/rVTDcA6XVvJ3lFIggbljJkT0NpVRidvhio7j4OsE5WRVPlv/JsI01yi xPOqSKKZw4OS+G2pgw+v7/Oq/fEu+eQ2iwN+xdyyU9oUgP6x7+mygYbXDru6/Zlo D1UTFN4DTohdHu45AEBFyphhjQfhXFJ0dQG4gWF5opBHOjcy/eNyeojVbaM0Nvnq fScKSE8+CCwpFLsrl2wAEW6sfQndWDtJARTTahkjwg38nUeZ0Z6IOYcQ0XfJ4Fss kX0dKVrUEHVYyhiJW0hRggxLw00a6FBMppotACWOCQJnBc4jZdHXWghzQw/SIWJH OlUt+/UQLjffqlx2+vNAUMbf0GAcnCCEXccf94fN4ylUfnRhaE2J147UFpRyyckF RmY3qGPg4Xbj9M90nopWsKwcGtDqnAEsAf/h/5leyRRlW54CIJyw39mIXAZ9+9xJ Y83HZ/wZJRsqQ9k3fm+JdFh1wiqCZ/zJC/Lul/0Q6+21uXOPIRYuGYJcTF9kIpCO ZAY6Z9+vcPnTHoBBFpZVKKxmK5yHF3aRHMjzhvJklLrdIZBvEZA= =k+0A -----END PGP SIGNATURE----- --Sig_/UeWA3fgZuKPZcG=B0RQutvm--