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Migration Pull request (20231020)

Browse Source 
In this pull request:
 - disable analyze-migration on s390x (thomas)
 - Fix parse_ramblock() (peter)
 - start merging live update (steve)
 - migration-test support for using several binaries (fabiano)
 - multifd cleanups (fabiano)
 
 CI: https://gitlab.com/juan.quintela/qemu/-/pipelines/1042492801
 
 Please apply.
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Merge tag 'migration-20231020-pull-request' of https://gitlab.com/juan.quintela/qemu into staging

Migration Pull request (20231020)

In this pull request:
- disable analyze-migration on s390x (thomas)
- Fix parse_ramblock() (peter)
- start merging live update (steve)
- migration-test support for using several binaries (fabiano)
- multifd cleanups (fabiano)

CI: https://gitlab.com/juan.quintela/qemu/-/pipelines/1042492801

Please apply.

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# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 19 Oct 2023 23:57:15 PDT
# gpg:                using RSA key 1899FF8EDEBF58CCEE034B82F487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>" [full]
# gpg:                 aka "Juan Quintela <quintela@trasno.org>" [full]
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* tag 'migration-20231020-pull-request' of https://gitlab.com/juan.quintela/qemu:
  tests/qtest: Don't print messages from query instances
  tests/qtest/migration: Allow user to specify a machine type
  tests/qtest/migration: Support more than one QEMU binary
  tests/qtest/migration: Set q35 as the default machine for x86_86
  tests/qtest/migration: Specify the geometry of the bootsector
  tests/qtest/migration: Define a machine for all architectures
  tests/qtest/migration: Introduce find_common_machine_version
  tests/qtest: Introduce qtest_resolve_machine_alias
  tests/qtest: Introduce qtest_has_machine_with_env
  tests/qtest: Allow qtest_get_machines to use an alternate QEMU binary
  tests/qtest: Introduce qtest_init_with_env
  tests/qtest: Allow qtest_qemu_binary to use a custom environment variable
  migration/multifd: Stop checking p->quit in multifd_send_thread
  migration: simplify notifiers
  migration: Fix parse_ramblock() on overwritten retvals
  migration: simplify blockers
  tests/qtest/migration-test: Disable the analyze-migration.py test on s390x

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2023-10-20 06:46:53 -07:00
commit 384dbdda94
44 changed files with 341 additions and 195 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
backends/tpm/tpm_emulator.c
View File

@ -534,11 +534,8 @@ static int tpm_emulator_block_migration(TPMEmulator *tpm_emu)
error_setg(&tpm_emu->migration_blocker, error_setg(&tpm_emu->migration_blocker,
"Migration disabled: TPM emulator does not support " "Migration disabled: TPM emulator does not support "
"migration"); "migration");
if (migrate_add_blocker(tpm_emu->migration_blocker, &err) < 0) { if (migrate_add_blocker(&tpm_emu->migration_blocker, &err) < 0) {
error_report_err(err); error_report_err(err);
error_free(tpm_emu->migration_blocker);
tpm_emu->migration_blocker = NULL;
return -1; return -1;
} }
} }
@ -1016,10 +1013,7 @@ static void tpm_emulator_inst_finalize(Object *obj)
qapi_free_TPMEmulatorOptions(tpm_emu->options); qapi_free_TPMEmulatorOptions(tpm_emu->options);
if (tpm_emu->migration_blocker) { migrate_del_blocker(&tpm_emu->migration_blocker);
migrate_del_blocker(tpm_emu->migration_blocker);
error_free(tpm_emu->migration_blocker);
}
tpm_sized_buffer_reset(&state_blobs->volatil); tpm_sized_buffer_reset(&state_blobs->volatil);
tpm_sized_buffer_reset(&state_blobs->permanent); tpm_sized_buffer_reset(&state_blobs->permanent);

9
block/parallels.c
View File

@ -1369,9 +1369,8 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
bdrv_get_device_or_node_name(bs)); bdrv_get_device_or_node_name(bs));
bdrv_graph_rdunlock_main_loop(); bdrv_graph_rdunlock_main_loop();
ret = migrate_add_blocker(s->migration_blocker, errp); ret = migrate_add_blocker(&s->migration_blocker, errp);
if (ret < 0) { if (ret < 0) {
error_setg(errp, "Migration blocker error");
goto fail; goto fail;
} }
qemu_co_mutex_init(&s->lock); qemu_co_mutex_init(&s->lock);
@ -1406,7 +1405,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
ret = bdrv_check(bs, &res, BDRV_FIX_ERRORS | BDRV_FIX_LEAKS); ret = bdrv_check(bs, &res, BDRV_FIX_ERRORS | BDRV_FIX_LEAKS);
if (ret < 0) { if (ret < 0) {
error_setg_errno(errp, -ret, "Could not repair corrupted image"); error_setg_errno(errp, -ret, "Could not repair corrupted image");
migrate_del_blocker(s->migration_blocker); migrate_del_blocker(&s->migration_blocker);
goto fail; goto fail;
} }
} }
@ -1423,7 +1422,6 @@ fail:
*/ */
parallels_free_used_bitmap(bs); parallels_free_used_bitmap(bs);
error_free(s->migration_blocker);
g_free(s->bat_dirty_bmap); g_free(s->bat_dirty_bmap);
qemu_vfree(s->header); qemu_vfree(s->header);
return ret; return ret;
@ -1448,8 +1446,7 @@ static void parallels_close(BlockDriverState *bs)
g_free(s->bat_dirty_bmap); g_free(s->bat_dirty_bmap);
qemu_vfree(s->header); qemu_vfree(s->header);
migrate_del_blocker(s->migration_blocker); migrate_del_blocker(&s->migration_blocker);
error_free(s->migration_blocker);
} }
static bool parallels_is_support_dirty_bitmaps(BlockDriverState *bs) static bool parallels_is_support_dirty_bitmaps(BlockDriverState *bs)

6
block/qcow.c
View File

@ -307,9 +307,8 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
bdrv_get_device_or_node_name(bs)); bdrv_get_device_or_node_name(bs));
bdrv_graph_rdunlock_main_loop(); bdrv_graph_rdunlock_main_loop();
ret = migrate_add_blocker(s->migration_blocker, errp); ret = migrate_add_blocker(&s->migration_blocker, errp);
if (ret < 0) { if (ret < 0) {
error_free(s->migration_blocker);
goto fail; goto fail;
} }
@ -802,8 +801,7 @@ static void qcow_close(BlockDriverState *bs)
g_free(s->cluster_cache); g_free(s->cluster_cache);
g_free(s->cluster_data); g_free(s->cluster_data);
migrate_del_blocker(s->migration_blocker); migrate_del_blocker(&s->migration_blocker);
error_free(s->migration_blocker);
} }
static int coroutine_fn GRAPH_UNLOCKED static int coroutine_fn GRAPH_UNLOCKED

6
block/vdi.c
View File

@ -498,9 +498,8 @@ static int vdi_open(BlockDriverState *bs, QDict *options, int flags,
bdrv_get_device_or_node_name(bs)); bdrv_get_device_or_node_name(bs));
bdrv_graph_rdunlock_main_loop(); bdrv_graph_rdunlock_main_loop();
ret = migrate_add_blocker(s->migration_blocker, errp); ret = migrate_add_blocker(&s->migration_blocker, errp);
if (ret < 0) { if (ret < 0) {
error_free(s->migration_blocker);
goto fail_free_bmap; goto fail_free_bmap;
} }
@ -988,8 +987,7 @@ static void vdi_close(BlockDriverState *bs)
qemu_vfree(s->bmap); qemu_vfree(s->bmap);
migrate_del_blocker(s->migration_blocker); migrate_del_blocker(&s->migration_blocker);
error_free(s->migration_blocker);
} }
static int vdi_has_zero_init(BlockDriverState *bs) static int vdi_has_zero_init(BlockDriverState *bs)

6
block/vhdx.c
View File

@ -985,8 +985,7 @@ static void vhdx_close(BlockDriverState *bs)
s->bat = NULL; s->bat = NULL;
qemu_vfree(s->parent_entries); qemu_vfree(s->parent_entries);
s->parent_entries = NULL; s->parent_entries = NULL;
migrate_del_blocker(s->migration_blocker); migrate_del_blocker(&s->migration_blocker);
error_free(s->migration_blocker);
qemu_vfree(s->log.hdr); qemu_vfree(s->log.hdr);
s->log.hdr = NULL; s->log.hdr = NULL;
vhdx_region_unregister_all(s); vhdx_region_unregister_all(s);
@ -1097,9 +1096,8 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags,
error_setg(&s->migration_blocker, "The vhdx format used by node '%s' " error_setg(&s->migration_blocker, "The vhdx format used by node '%s' "
"does not support live migration", "does not support live migration",
bdrv_get_device_or_node_name(bs)); bdrv_get_device_or_node_name(bs));
ret = migrate_add_blocker(s->migration_blocker, errp); ret = migrate_add_blocker(&s->migration_blocker, errp);
if (ret < 0) { if (ret < 0) {
error_free(s->migration_blocker);
goto fail; goto fail;
} }

6
block/vmdk.c
View File

@ -1386,9 +1386,8 @@ static int vmdk_open(BlockDriverState *bs, QDict *options, int flags,
error_setg(&s->migration_blocker, "The vmdk format used by node '%s' " error_setg(&s->migration_blocker, "The vmdk format used by node '%s' "
"does not support live migration", "does not support live migration",
bdrv_get_device_or_node_name(bs)); bdrv_get_device_or_node_name(bs));
ret = migrate_add_blocker(s->migration_blocker, errp); ret = migrate_add_blocker(&s->migration_blocker, errp);
if (ret < 0) { if (ret < 0) {
error_free(s->migration_blocker);
goto fail; goto fail;
} }
@ -2867,8 +2866,7 @@ static void vmdk_close(BlockDriverState *bs)
vmdk_free_extents(bs); vmdk_free_extents(bs);
g_free(s->create_type); g_free(s->create_type);
migrate_del_blocker(s->migration_blocker); migrate_del_blocker(&s->migration_blocker);
error_free(s->migration_blocker);
} }
static int64_t coroutine_fn GRAPH_RDLOCK static int64_t coroutine_fn GRAPH_RDLOCK

6
block/vpc.c
View File

@ -452,9 +452,8 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
bdrv_get_device_or_node_name(bs)); bdrv_get_device_or_node_name(bs));
bdrv_graph_rdunlock_main_loop(); bdrv_graph_rdunlock_main_loop();
ret = migrate_add_blocker(s->migration_blocker, errp); ret = migrate_add_blocker(&s->migration_blocker, errp);
if (ret < 0) { if (ret < 0) {
error_free(s->migration_blocker);
goto fail; goto fail;
} }
@ -1190,8 +1189,7 @@ static void vpc_close(BlockDriverState *bs)
g_free(s->pageentry_u8); g_free(s->pageentry_u8);
#endif #endif
migrate_del_blocker(s->migration_blocker); migrate_del_blocker(&s->migration_blocker);
error_free(s->migration_blocker);
} }
static QemuOptsList vpc_create_opts = { static QemuOptsList vpc_create_opts = {

6
block/vvfat.c
View File

@ -1268,9 +1268,8 @@ static int vvfat_open(BlockDriverState *bs, QDict *options, int flags,
"The vvfat (rw) format used by node '%s' " "The vvfat (rw) format used by node '%s' "
"does not support live migration", "does not support live migration",
bdrv_get_device_or_node_name(bs)); bdrv_get_device_or_node_name(bs));
ret = migrate_add_blocker(s->migration_blocker, errp); ret = migrate_add_blocker(&s->migration_blocker, errp);
if (ret < 0) { if (ret < 0) {
error_free(s->migration_blocker);
goto fail; goto fail;
} }
} }
@ -3239,8 +3238,7 @@ static void vvfat_close(BlockDriverState *bs)
g_free(s->cluster_buffer); g_free(s->cluster_buffer);
if (s->qcow) { if (s->qcow) {
migrate_del_blocker(s->migration_blocker); migrate_del_blocker(&s->migration_blocker);
error_free(s->migration_blocker);
} }
} }

4
dump/dump.c
View File

@ -111,7 +111,7 @@ static int dump_cleanup(DumpState *s)
qemu_mutex_unlock_iothread(); qemu_mutex_unlock_iothread();
} }
} }
migrate_del_blocker(dump_migration_blocker); migrate_del_blocker(&dump_migration_blocker);
return 0; return 0;
} }
@ -2158,7 +2158,7 @@ void qmp_dump_guest_memory(bool paging, const char *file,
* Allows even for -only-migratable, but forbid migration during the * Allows even for -only-migratable, but forbid migration during the
* process of dump guest memory. * process of dump guest memory.
*/ */
if (migrate_add_blocker_internal(dump_migration_blocker, errp)) { if (migrate_add_blocker_internal(&dump_migration_blocker, errp)) {
/* Remember to release the fd before passing it over to dump state */ /* Remember to release the fd before passing it over to dump state */
close(fd); close(fd);
return; return;

10
hw/9pfs/9p.c
View File

@ -406,11 +406,7 @@ static int coroutine_fn put_fid(V9fsPDU *pdu, V9fsFidState *fidp)
* delete the migration blocker. Ideally, this * delete the migration blocker. Ideally, this
* should be hooked to transport close notification * should be hooked to transport close notification
*/ */
if (pdu->s->migration_blocker) { migrate_del_blocker(&pdu->s->migration_blocker);
migrate_del_blocker(pdu->s->migration_blocker);
error_free(pdu->s->migration_blocker);
pdu->s->migration_blocker = NULL;
}
} }
return free_fid(pdu, fidp); return free_fid(pdu, fidp);
} }
@ -1505,10 +1501,8 @@ static void coroutine_fn v9fs_attach(void *opaque)
error_setg(&s->migration_blocker, error_setg(&s->migration_blocker,
"Migration is disabled when VirtFS export path '%s' is mounted in the guest using mount_tag '%s'", "Migration is disabled when VirtFS export path '%s' is mounted in the guest using mount_tag '%s'",
s->ctx.fs_root ? s->ctx.fs_root : "NULL", s->tag); s->ctx.fs_root ? s->ctx.fs_root : "NULL", s->tag);
err = migrate_add_blocker(s->migration_blocker, NULL); err = migrate_add_blocker(&s->migration_blocker, NULL);
if (err < 0) { if (err < 0) {
error_free(s->migration_blocker);
s->migration_blocker = NULL;
clunk_fid(s, fid); clunk_fid(s, fid);
goto out; goto out;
} }

8
hw/display/virtio-gpu-base.c
View File

@ -184,8 +184,7 @@ virtio_gpu_base_device_realize(DeviceState *qdev,
if (virtio_gpu_virgl_enabled(g->conf)) { if (virtio_gpu_virgl_enabled(g->conf)) {
error_setg(&g->migration_blocker, "virgl is not yet migratable"); error_setg(&g->migration_blocker, "virgl is not yet migratable");
if (migrate_add_blocker(g->migration_blocker, errp) < 0) { if (migrate_add_blocker(&g->migration_blocker, errp) < 0) {
error_free(g->migration_blocker);
return false; return false;
} }
} }
@ -253,10 +252,7 @@ virtio_gpu_base_device_unrealize(DeviceState *qdev)
{ {
VirtIOGPUBase *g = VIRTIO_GPU_BASE(qdev); VirtIOGPUBase *g = VIRTIO_GPU_BASE(qdev);
if (g->migration_blocker) { migrate_del_blocker(&g->migration_blocker);
migrate_del_blocker(g->migration_blocker);
error_free(g->migration_blocker);
}
} }
static void static void

3
hw/intc/arm_gic_kvm.c
View File

@ -516,8 +516,7 @@ static void kvm_arm_gic_realize(DeviceState *dev, Error **errp)
if (!kvm_arm_gic_can_save_restore(s)) { if (!kvm_arm_gic_can_save_restore(s)) {
error_setg(&s->migration_blocker, "This operating system kernel does " error_setg(&s->migration_blocker, "This operating system kernel does "
"not support vGICv2 migration"); "not support vGICv2 migration");
if (migrate_add_blocker(s->migration_blocker, errp) < 0) { if (migrate_add_blocker(&s->migration_blocker, errp) < 0) {
error_free(s->migration_blocker);
return; return;
} }
} }

3
hw/intc/arm_gicv3_its_kvm.c
View File

@ -114,8 +114,7 @@ static void kvm_arm_its_realize(DeviceState *dev, Error **errp)
GITS_CTLR)) { GITS_CTLR)) {
error_setg(&s->migration_blocker, "This operating system kernel " error_setg(&s->migration_blocker, "This operating system kernel "
"does not support vITS migration"); "does not support vITS migration");
if (migrate_add_blocker(s->migration_blocker, errp) < 0) { if (migrate_add_blocker(&s->migration_blocker, errp) < 0) {
error_free(s->migration_blocker);
return; return;
} }
} else { } else {

3
hw/intc/arm_gicv3_kvm.c
View File

@ -878,8 +878,7 @@ static void kvm_arm_gicv3_realize(DeviceState *dev, Error **errp)
GICD_CTLR)) { GICD_CTLR)) {
error_setg(&s->migration_blocker, "This operating system kernel does " error_setg(&s->migration_blocker, "This operating system kernel does "
"not support vGICv3 migration"); "not support vGICv3 migration");
if (migrate_add_blocker(s->migration_blocker, errp) < 0) { if (migrate_add_blocker(&s->migration_blocker, errp) < 0) {
error_free(s->migration_blocker);
return; return;
} }
} }

8
hw/misc/ivshmem.c
View File

@ -903,8 +903,7 @@ static void ivshmem_common_realize(PCIDevice *dev, Error **errp)
if (!ivshmem_is_master(s)) { if (!ivshmem_is_master(s)) {
error_setg(&s->migration_blocker, error_setg(&s->migration_blocker,
"Migration is disabled when using feature 'peer mode' in device 'ivshmem'"); "Migration is disabled when using feature 'peer mode' in device 'ivshmem'");
if (migrate_add_blocker(s->migration_blocker, errp) < 0) { if (migrate_add_blocker(&s->migration_blocker, errp) < 0) {
error_free(s->migration_blocker);
return; return;
} }
} }
@ -922,10 +921,7 @@ static void ivshmem_exit(PCIDevice *dev)
IVShmemState *s = IVSHMEM_COMMON(dev); IVShmemState *s = IVSHMEM_COMMON(dev);
int i; int i;
if (s->migration_blocker) { migrate_del_blocker(&s->migration_blocker);
migrate_del_blocker(s->migration_blocker);
error_free(s->migration_blocker);
}
if (memory_region_is_mapped(s->ivshmem_bar2)) { if (memory_region_is_mapped(s->ivshmem_bar2)) {
if (!s->hostmem) { if (!s->hostmem) {

6
hw/net/virtio-net.c
View File

@ -3624,8 +3624,8 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
n->primary_listener.hide_device = failover_hide_primary_device; n->primary_listener.hide_device = failover_hide_primary_device;
qatomic_set(&n->failover_primary_hidden, true); qatomic_set(&n->failover_primary_hidden, true);
device_listener_register(&n->primary_listener); device_listener_register(&n->primary_listener);
n->migration_state.notify = virtio_net_migration_state_notifier; migration_add_notifier(&n->migration_state,
add_migration_state_change_notifier(&n->migration_state); virtio_net_migration_state_notifier);
n->host_features |= (1ULL << VIRTIO_NET_F_STANDBY); n->host_features |= (1ULL << VIRTIO_NET_F_STANDBY);
} }
@ -3788,7 +3788,7 @@ static void virtio_net_device_unrealize(DeviceState *dev)
if (n->failover) { if (n->failover) {
qobject_unref(n->primary_opts); qobject_unref(n->primary_opts);
device_listener_unregister(&n->primary_listener); device_listener_unregister(&n->primary_listener);
remove_migration_state_change_notifier(&n->migration_state); migration_remove_notifier(&n->migration_state);
} else { } else {
assert(n->primary_opts == NULL); assert(n->primary_opts == NULL);
} }

2
hw/ppc/pef.c
View File

@ -63,7 +63,7 @@ static int kvmppc_svm_init(ConfidentialGuestSupport *cgs, Error **errp)
/* add migration blocker */ /* add migration blocker */
error_setg(&pef_mig_blocker, "PEF: Migration is not implemented"); error_setg(&pef_mig_blocker, "PEF: Migration is not implemented");
/* NB: This can fail if --only-migratable is used */ /* NB: This can fail if --only-migratable is used */
migrate_add_blocker(pef_mig_blocker, &error_fatal); migrate_add_blocker(&pef_mig_blocker, &error_fatal);
cgs->ready = true; cgs->ready = true;

9
hw/ppc/spapr.c
View File

@ -1761,7 +1761,7 @@ static void spapr_machine_reset(MachineState *machine, ShutdownCause reason)
/* Signal all vCPUs waiting on this condition */ /* Signal all vCPUs waiting on this condition */
qemu_cond_broadcast(&spapr->fwnmi_machine_check_interlock_cond); qemu_cond_broadcast(&spapr->fwnmi_machine_check_interlock_cond);
migrate_del_blocker(spapr->fwnmi_migration_blocker); migrate_del_blocker(&spapr->fwnmi_migration_blocker);
} }
static void spapr_create_nvram(SpaprMachineState *spapr) static void spapr_create_nvram(SpaprMachineState *spapr)
@ -2937,13 +2937,6 @@ static void spapr_machine_init(MachineState *machine)
spapr_create_lmb_dr_connectors(spapr); spapr_create_lmb_dr_connectors(spapr);
} }
if (spapr_get_cap(spapr, SPAPR_CAP_FWNMI) == SPAPR_CAP_ON) {
/* Create the error string for live migration blocker */
error_setg(&spapr->fwnmi_migration_blocker,
"A machine check is being handled during migration. The handler"
"may run and log hardware error on the destination");
}
if (mc->nvdimm_supported) { if (mc->nvdimm_supported) {
spapr_create_nvdimm_dr_connectors(spapr); spapr_create_nvdimm_dr_connectors(spapr);
} }

6
hw/ppc/spapr_events.c
View File

@ -920,7 +920,11 @@ void spapr_mce_req_event(PowerPCCPU *cpu, bool recovered)
* fails when running with -only-migrate. A proper interface to * fails when running with -only-migrate. A proper interface to
* delay migration completion for a bit could avoid that. * delay migration completion for a bit could avoid that.
*/ */
ret = migrate_add_blocker(spapr->fwnmi_migration_blocker, NULL); error_setg(&spapr->fwnmi_migration_blocker,
"A machine check is being handled during migration. The handler"
"may run and log hardware error on the destination");
ret = migrate_add_blocker(&spapr->fwnmi_migration_blocker, NULL);
if (ret == -EBUSY) { if (ret == -EBUSY) {
warn_report("Received a fwnmi while migration was in progress"); warn_report("Received a fwnmi while migration was in progress");
} }

2
hw/ppc/spapr_rtas.c
View File

@ -496,7 +496,7 @@ static void rtas_ibm_nmi_interlock(PowerPCCPU *cpu,
spapr->fwnmi_machine_check_interlock = -1; spapr->fwnmi_machine_check_interlock = -1;
qemu_cond_signal(&spapr->fwnmi_machine_check_interlock_cond); qemu_cond_signal(&spapr->fwnmi_machine_check_interlock_cond);
rtas_st(rets, 0, RTAS_OUT_SUCCESS); rtas_st(rets, 0, RTAS_OUT_SUCCESS);
migrate_del_blocker(spapr->fwnmi_migration_blocker); migrate_del_blocker(&spapr->fwnmi_migration_blocker);
} }
static struct rtas_call { static struct rtas_call {

7
hw/remote/proxy.c
View File

@ -107,8 +107,7 @@ static void pci_proxy_dev_realize(PCIDevice *device, Error **errp)
error_setg(&dev->migration_blocker, "%s does not support migration", error_setg(&dev->migration_blocker, "%s does not support migration",
TYPE_PCI_PROXY_DEV); TYPE_PCI_PROXY_DEV);
if (migrate_add_blocker(dev->migration_blocker, errp) < 0) { if (migrate_add_blocker(&dev->migration_blocker, errp) < 0) {
error_free(dev->migration_blocker);
object_unref(dev->ioc); object_unref(dev->ioc);
return; return;
} }
@ -134,9 +133,7 @@ static void pci_proxy_dev_exit(PCIDevice *pdev)
qio_channel_close(dev->ioc, NULL); qio_channel_close(dev->ioc, NULL);
} }
migrate_del_blocker(dev->migration_blocker); migrate_del_blocker(&dev->migration_blocker);
error_free(dev->migration_blocker);
proxy_memory_listener_deconfigure(&dev->proxy_listener); proxy_memory_listener_deconfigure(&dev->proxy_listener);

9
hw/s390x/s390-virtio-ccw.c
View File

@ -344,8 +344,7 @@ static void s390_machine_unprotect(S390CcwMachineState *ms)
s390_pv_vm_disable(); s390_pv_vm_disable();
} }
ms->pv = false; ms->pv = false;
migrate_del_blocker(pv_mig_blocker); migrate_del_blocker(&pv_mig_blocker);
error_free_or_abort(&pv_mig_blocker);
ram_block_discard_disable(false); ram_block_discard_disable(false);
} }
@ -368,11 +367,10 @@ static int s390_machine_protect(S390CcwMachineState *ms)
error_setg(&pv_mig_blocker, error_setg(&pv_mig_blocker,
"protected VMs are currently not migratable."); "protected VMs are currently not migratable.");
rc = migrate_add_blocker(pv_mig_blocker, &local_err); rc = migrate_add_blocker(&pv_mig_blocker, &local_err);
if (rc) { if (rc) {
ram_block_discard_disable(false); ram_block_discard_disable(false);
error_report_err(local_err); error_report_err(local_err);
error_free_or_abort(&pv_mig_blocker);
return rc; return rc;
} }
@ -380,8 +378,7 @@ static int s390_machine_protect(S390CcwMachineState *ms)
rc = s390_pv_vm_enable(); rc = s390_pv_vm_enable();
if (rc) { if (rc) {
ram_block_discard_disable(false); ram_block_discard_disable(false);
migrate_del_blocker(pv_mig_blocker); migrate_del_blocker(&pv_mig_blocker);
error_free_or_abort(&pv_mig_blocker);
return rc; return rc;
} }

8
hw/scsi/vhost-scsi.c
View File

@ -208,7 +208,7 @@ static void vhost_scsi_realize(DeviceState *dev, Error **errp)
"When external environment supports it (Orchestrator migrates " "When external environment supports it (Orchestrator migrates "
"target SCSI device state or use shared storage over network), " "target SCSI device state or use shared storage over network), "
"set 'migratable' property to true to enable migration."); "set 'migratable' property to true to enable migration.");
if (migrate_add_blocker(vsc->migration_blocker, errp) < 0) { if (migrate_add_blocker(&vsc->migration_blocker, errp) < 0) {
goto free_virtio; goto free_virtio;
} }
} }
@ -241,10 +241,9 @@ static void vhost_scsi_realize(DeviceState *dev, Error **errp)
free_vqs: free_vqs:
g_free(vqs); g_free(vqs);
if (!vsc->migratable) { if (!vsc->migratable) {
migrate_del_blocker(vsc->migration_blocker); migrate_del_blocker(&vsc->migration_blocker);
} }
free_virtio: free_virtio:
error_free(vsc->migration_blocker);
virtio_scsi_common_unrealize(dev); virtio_scsi_common_unrealize(dev);
close_fd: close_fd:
if (vhostfd >= 0) { if (vhostfd >= 0) {
@ -260,8 +259,7 @@ static void vhost_scsi_unrealize(DeviceState *dev)
struct vhost_virtqueue *vqs = vsc->dev.vqs; struct vhost_virtqueue *vqs = vsc->dev.vqs;
if (!vsc->migratable) { if (!vsc->migratable) {
migrate_del_blocker(vsc->migration_blocker); migrate_del_blocker(&vsc->migration_blocker);
error_free(vsc->migration_blocker);
} }
/* This will stop vhost backend. */ /* This will stop vhost backend. */

10
hw/vfio/common.c
View File

@ -129,11 +129,7 @@ int vfio_block_multiple_devices_migration(VFIODevice *vbasedev, Error **errp)
error_setg(&multiple_devices_migration_blocker, error_setg(&multiple_devices_migration_blocker,
"Multiple VFIO devices migration is supported only if all of " "Multiple VFIO devices migration is supported only if all of "
"them support P2P migration"); "them support P2P migration");
ret = migrate_add_blocker(multiple_devices_migration_blocker, errp); ret = migrate_add_blocker(&multiple_devices_migration_blocker, errp);
if (ret < 0) {
error_free(multiple_devices_migration_blocker);
multiple_devices_migration_blocker = NULL;
}
return ret; return ret;
} }
@ -145,9 +141,7 @@ void vfio_unblock_multiple_devices_migration(void)
return; return;
} }
migrate_del_blocker(multiple_devices_migration_blocker); migrate_del_blocker(&multiple_devices_migration_blocker);
error_free(multiple_devices_migration_blocker);
multiple_devices_migration_blocker = NULL;
} }
bool vfio_viommu_preset(VFIODevice *vbasedev) bool vfio_viommu_preset(VFIODevice *vbasedev)

22
hw/vfio/migration.c
View File

@ -872,8 +872,8 @@ static int vfio_migration_init(VFIODevice *vbasedev)
NULL; NULL;
migration->vm_state = qdev_add_vm_change_state_handler_full( migration->vm_state = qdev_add_vm_change_state_handler_full(
vbasedev->dev, vfio_vmstate_change, prepare_cb, vbasedev); vbasedev->dev, vfio_vmstate_change, prepare_cb, vbasedev);
migration->migration_state.notify = vfio_migration_state_notifier; migration_add_notifier(&migration->migration_state,
add_migration_state_change_notifier(&migration->migration_state); vfio_migration_state_notifier);
return 0; return 0;
} }
@ -882,7 +882,7 @@ static void vfio_migration_deinit(VFIODevice *vbasedev)
{ {
VFIOMigration *migration = vbasedev->migration; VFIOMigration *migration = vbasedev->migration;
remove_migration_state_change_notifier(&migration->migration_state); migration_remove_notifier(&migration->migration_state);
qemu_del_vm_change_state_handler(migration->vm_state); qemu_del_vm_change_state_handler(migration->vm_state);
unregister_savevm(VMSTATE_IF(vbasedev->dev), "vfio", vbasedev); unregister_savevm(VMSTATE_IF(vbasedev->dev), "vfio", vbasedev);
vfio_migration_free(vbasedev); vfio_migration_free(vbasedev);
@ -891,8 +891,6 @@ static void vfio_migration_deinit(VFIODevice *vbasedev)
static int vfio_block_migration(VFIODevice *vbasedev, Error *err, Error **errp) static int vfio_block_migration(VFIODevice *vbasedev, Error *err, Error **errp)
{ {
int ret;
if (vbasedev->enable_migration == ON_OFF_AUTO_ON) { if (vbasedev->enable_migration == ON_OFF_AUTO_ON) {
error_propagate(errp, err); error_propagate(errp, err);
return -EINVAL; return -EINVAL;
@ -901,13 +899,7 @@ static int vfio_block_migration(VFIODevice *vbasedev, Error *err, Error **errp)
vbasedev->migration_blocker = error_copy(err); vbasedev->migration_blocker = error_copy(err);
error_free(err); error_free(err);
ret = migrate_add_blocker(vbasedev->migration_blocker, errp); return migrate_add_blocker(&vbasedev->migration_blocker, errp);
if (ret < 0) {
error_free(vbasedev->migration_blocker);
vbasedev->migration_blocker = NULL;
}
return ret;
} }
/* ---------------------------------------------------------------------- */ /* ---------------------------------------------------------------------- */
@ -994,9 +986,5 @@ void vfio_migration_exit(VFIODevice *vbasedev)
vfio_migration_deinit(vbasedev); vfio_migration_deinit(vbasedev);
} }
if (vbasedev->migration_blocker) { migrate_del_blocker(&vbasedev->migration_blocker);
migrate_del_blocker(vbasedev->migration_blocker);
error_free(vbasedev->migration_blocker);
vbasedev->migration_blocker = NULL;
}
} }

8
hw/virtio/vhost.c
View File

@ -1527,9 +1527,8 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaque,
} }
if (hdev->migration_blocker != NULL) { if (hdev->migration_blocker != NULL) {
r = migrate_add_blocker(hdev->migration_blocker, errp); r = migrate_add_blocker(&hdev->migration_blocker, errp);
if (r < 0) { if (r < 0) {
error_free(hdev->migration_blocker);
goto fail_busyloop; goto fail_busyloop;
} }
} }
@ -1597,10 +1596,7 @@ void vhost_dev_cleanup(struct vhost_dev *hdev)
memory_listener_unregister(&hdev->memory_listener); memory_listener_unregister(&hdev->memory_listener);
QLIST_REMOVE(hdev, entry); QLIST_REMOVE(hdev, entry);
} }
if (hdev->migration_blocker) { migrate_del_blocker(&hdev->migration_blocker);
migrate_del_blocker(hdev->migration_blocker);
error_free(hdev->migration_blocker);
}
g_free(hdev->mem); g_free(hdev->mem);
g_free(hdev->mem_sections); g_free(hdev->mem_sections);
if (hdev->vhost_ops) { if (hdev->vhost_ops) {

24
include/migration/blocker.h
View File

@ -17,19 +17,23 @@
/** /**
* @migrate_add_blocker - prevent migration from proceeding * @migrate_add_blocker - prevent migration from proceeding
* *
* @reason - an error to be returned whenever migration is attempted * @reasonp - address of an error to be returned whenever migration is attempted
* *
* @errp - [out] The reason (if any) we cannot block migration right now. * @errp - [out] The reason (if any) we cannot block migration right now.
* *
* @returns - 0 on success, -EBUSY/-EACCES on failure, with errp set. * @returns - 0 on success, -EBUSY/-EACCES on failure, with errp set.
*
* *@reasonp is freed and set to NULL if failure is returned.
* On success, the caller must not free @reasonp, except by
* calling migrate_del_blocker.
*/ */
int migrate_add_blocker(Error *reason, Error **errp); int migrate_add_blocker(Error **reasonp, Error **errp);
/** /**
* @migrate_add_blocker_internal - prevent migration from proceeding without * @migrate_add_blocker_internal - prevent migration from proceeding without
* only-migrate implications * only-migrate implications
* *
* @reason - an error to be returned whenever migration is attempted * @reasonp - address of an error to be returned whenever migration is attempted
* *
* @errp - [out] The reason (if any) we cannot block migration right now. * @errp - [out] The reason (if any) we cannot block migration right now.
* *
@ -38,14 +42,20 @@ int migrate_add_blocker(Error *reason, Error **errp);
* Some of the migration blockers can be temporary (e.g., for a few seconds), * Some of the migration blockers can be temporary (e.g., for a few seconds),
* so it shouldn't need to conflict with "-only-migratable". For those cases, * so it shouldn't need to conflict with "-only-migratable". For those cases,
* we can call this function rather than @migrate_add_blocker(). * we can call this function rather than @migrate_add_blocker().
*
* *@reasonp is freed and set to NULL if failure is returned.
* On success, the caller must not free @reasonp, except by
* calling migrate_del_blocker.
*/ */
int migrate_add_blocker_internal(Error *reason, Error **errp); int migrate_add_blocker_internal(Error **reasonp, Error **errp);
/** /**
* @migrate_del_blocker - remove a blocking error from migration * @migrate_del_blocker - remove a blocking error from migration and free it.
* *
* @reason - the error blocking migration * @reasonp - address of the error blocking migration
*
* This function frees *@reasonp and sets it to NULL.
*/ */
void migrate_del_blocker(Error *reason); void migrate_del_blocker(Error **reasonp);
#endif #endif

6
include/migration/misc.h
View File

@ -60,8 +60,10 @@ void migration_object_init(void);
void migration_shutdown(void); void migration_shutdown(void);
bool migration_is_idle(void); bool migration_is_idle(void);
bool migration_is_active(MigrationState *); bool migration_is_active(MigrationState *);
void add_migration_state_change_notifier(Notifier *notify); void migration_add_notifier(Notifier *notify,
void remove_migration_state_change_notifier(Notifier *notify); void (*func)(Notifier *notifier, void *data));
void migration_remove_notifier(Notifier *notify);
void migration_call_notifiers(MigrationState *s);
bool migration_in_setup(MigrationState *); bool migration_in_setup(MigrationState *);
bool migration_has_finished(MigrationState *); bool migration_has_finished(MigrationState *);
bool migration_has_failed(MigrationState *); bool migration_has_failed(MigrationState *);

44
migration/migration.c
View File

@ -1207,7 +1207,7 @@ static void migrate_fd_cleanup(MigrationState *s)
/* It is used on info migrate. We can't free it */ /* It is used on info migrate. We can't free it */
error_report_err(error_copy(s->error)); error_report_err(error_copy(s->error));
} }
notifier_list_notify(&migration_state_notifiers, s); migration_call_notifiers(s);
block_cleanup_parameters(); block_cleanup_parameters();
yank_unregister_instance(MIGRATION_YANK_INSTANCE); yank_unregister_instance(MIGRATION_YANK_INSTANCE);
} }
@ -1311,14 +1311,24 @@ static void migrate_fd_cancel(MigrationState *s)
} }
} }
void add_migration_state_change_notifier(Notifier *notify) void migration_add_notifier(Notifier *notify,
void (*func)(Notifier *notifier, void *data))
{ {
notify->notify = func;
notifier_list_add(&migration_state_notifiers, notify); notifier_list_add(&migration_state_notifiers, notify);
} }
void remove_migration_state_change_notifier(Notifier *notify) void migration_remove_notifier(Notifier *notify)
{ {
notifier_remove(notify); if (notify->notify) {
notifier_remove(notify);
notify->notify = NULL;
}
}
void migration_call_notifiers(MigrationState *s)
{
notifier_list_notify(&migration_state_notifiers, s);
} }
bool migration_in_setup(MigrationState *s) bool migration_in_setup(MigrationState *s)
@ -1465,35 +1475,41 @@ int migrate_init(MigrationState *s, Error **errp)
return 0; return 0;
} }
int migrate_add_blocker_internal(Error *reason, Error **errp) int migrate_add_blocker_internal(Error **reasonp, Error **errp)
{ {
/* Snapshots are similar to migrations, so check RUN_STATE_SAVE_VM too. */ /* Snapshots are similar to migrations, so check RUN_STATE_SAVE_VM too. */
if (runstate_check(RUN_STATE_SAVE_VM) || !migration_is_idle()) { if (runstate_check(RUN_STATE_SAVE_VM) || !migration_is_idle()) {
error_propagate_prepend(errp, error_copy(reason), error_propagate_prepend(errp, *reasonp,
"disallowing migration blocker " "disallowing migration blocker "
"(migration/snapshot in progress) for: "); "(migration/snapshot in progress) for: ");
*reasonp = NULL;
return -EBUSY; return -EBUSY;
} }
migration_blockers = g_slist_prepend(migration_blockers, reason); migration_blockers = g_slist_prepend(migration_blockers, *reasonp);
return 0; return 0;
} }
int migrate_add_blocker(Error *reason, Error **errp) int migrate_add_blocker(Error **reasonp, Error **errp)
{ {
if (only_migratable) { if (only_migratable) {
error_propagate_prepend(errp, error_copy(reason), error_propagate_prepend(errp, *reasonp,
"disallowing migration blocker " "disallowing migration blocker "
"(--only-migratable) for: "); "(--only-migratable) for: ");
*reasonp = NULL;
return -EACCES; return -EACCES;
} }
return migrate_add_blocker_internal(reason, errp); return migrate_add_blocker_internal(reasonp, errp);
} }
void migrate_del_blocker(Error *reason) void migrate_del_blocker(Error **reasonp)
{ {
migration_blockers = g_slist_remove(migration_blockers, reason); if (*reasonp) {
migration_blockers = g_slist_remove(migration_blockers, *reasonp);
error_free(*reasonp);
*reasonp = NULL;
}
} }
void qmp_migrate_incoming(const char *uri, Error **errp) void qmp_migrate_incoming(const char *uri, Error **errp)
@ -2227,7 +2243,7 @@ static int postcopy_start(MigrationState *ms, Error **errp)
* spice needs to trigger a transition now * spice needs to trigger a transition now
*/ */
ms->postcopy_after_devices = true; ms->postcopy_after_devices = true;
notifier_list_notify(&migration_state_notifiers, ms); migration_call_notifiers(ms);
ms->downtime = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) - time_at_stop; ms->downtime = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) - time_at_stop;
@ -3307,7 +3323,7 @@ void migrate_fd_connect(MigrationState *s, Error *error_in)
rate_limit = migrate_max_bandwidth(); rate_limit = migrate_max_bandwidth();
/* Notify before starting migration thread */ /* Notify before starting migration thread */
notifier_list_notify(&migration_state_notifiers, s); migration_call_notifiers(s);
} }
migration_rate_set(rate_limit); migration_rate_set(rate_limit);

3
migration/multifd.c
View File

@ -743,9 +743,6 @@ static void *multifd_send_thread(void *opaque)
if (flags & MULTIFD_FLAG_SYNC) { if (flags & MULTIFD_FLAG_SYNC) {
qemu_sem_post(&p->sem_sync); qemu_sem_post(&p->sem_sync);
} }
} else if (p->quit) {
qemu_mutex_unlock(&p->mutex);
break;
} else { } else {
qemu_mutex_unlock(&p->mutex); qemu_mutex_unlock(&p->mutex);
/* sometimes there are spurious wakeups */ /* sometimes there are spurious wakeups */

5
migration/ram.c
View File

@ -3873,6 +3873,7 @@ static int parse_ramblock(QEMUFile *f, RAMBlock *block, ram_addr_t length)
ret = qemu_ram_resize(block, length, &local_err); ret = qemu_ram_resize(block, length, &local_err);
if (local_err) { if (local_err) {
error_report_err(local_err); error_report_err(local_err);
return ret;
} }
} }
/* For postcopy we need to check hugepage sizes match */ /* For postcopy we need to check hugepage sizes match */
@ -3883,7 +3884,7 @@ static int parse_ramblock(QEMUFile *f, RAMBlock *block, ram_addr_t length)
error_report("Mismatched RAM page size %s " error_report("Mismatched RAM page size %s "
"(local) %zd != %" PRId64, block->idstr, "(local) %zd != %" PRId64, block->idstr,
block->page_size, remote_page_size); block->page_size, remote_page_size);
ret = -EINVAL; return -EINVAL;
} }
} }
if (migrate_ignore_shared()) { if (migrate_ignore_shared()) {
@ -3893,7 +3894,7 @@ static int parse_ramblock(QEMUFile *f, RAMBlock *block, ram_addr_t length)
error_report("Mismatched GPAs for block %s " error_report("Mismatched GPAs for block %s "
"%" PRId64 "!= %" PRId64, block->idstr, "%" PRId64 "!= %" PRId64, block->idstr,
(uint64_t)addr, (uint64_t)block->mr->addr); (uint64_t)addr, (uint64_t)block->mr->addr);
ret = -EINVAL; return -EINVAL;
} }
} }
ret = rdma_block_notification_handle(f, block->idstr); ret = rdma_block_notification_handle(f, block->idstr);

7
net/vhost-vdpa.c
View File

@ -339,7 +339,8 @@ static void vhost_vdpa_net_data_start_first(VhostVDPAState *s)
{ {
struct vhost_vdpa *v = &s->vhost_vdpa; struct vhost_vdpa *v = &s->vhost_vdpa;
add_migration_state_change_notifier(&s->migration_state); migration_add_notifier(&s->migration_state,
vdpa_net_migration_state_notifier);
if (v->shadow_vqs_enabled) { if (v->shadow_vqs_enabled) {
v->iova_tree = vhost_iova_tree_new(v->iova_range.first, v->iova_tree = vhost_iova_tree_new(v->iova_range.first,
v->iova_range.last); v->iova_range.last);
@ -399,7 +400,7 @@ static void vhost_vdpa_net_client_stop(NetClientState *nc)
assert(nc->info->type == NET_CLIENT_DRIVER_VHOST_VDPA); assert(nc->info->type == NET_CLIENT_DRIVER_VHOST_VDPA);
if (s->vhost_vdpa.index == 0) { if (s->vhost_vdpa.index == 0) {
remove_migration_state_change_notifier(&s->migration_state); migration_remove_notifier(&s->migration_state);
} }
dev = s->vhost_vdpa.dev; dev = s->vhost_vdpa.dev;
@ -1456,7 +1457,7 @@ static NetClientState *net_vhost_vdpa_init(NetClientState *peer,
s->vhost_vdpa.device_fd = vdpa_device_fd; s->vhost_vdpa.device_fd = vdpa_device_fd;
s->vhost_vdpa.index = queue_pair_index; s->vhost_vdpa.index = queue_pair_index;
s->always_svq = svq; s->always_svq = svq;
s->migration_state.notify = vdpa_net_migration_state_notifier; s->migration_state.notify = NULL;
s->vhost_vdpa.shadow_vqs_enabled = svq; s->vhost_vdpa.shadow_vqs_enabled = svq;
s->vhost_vdpa.iova_range = iova_range; s->vhost_vdpa.iova_range = iova_range;
s->vhost_vdpa.shadow_data = svq; s->vhost_vdpa.shadow_data = svq;

4
stubs/migr-blocker.c
View File

@ -1,11 +1,11 @@
#include "qemu/osdep.h" #include "qemu/osdep.h"
#include "migration/blocker.h" #include "migration/blocker.h"
int migrate_add_blocker(Error *reason, Error **errp) int migrate_add_blocker(Error **reasonp, Error **errp)
{ {
return 0; return 0;
} }
void migrate_del_blocker(Error *reason) void migrate_del_blocker(Error **reasonp)
{ {
} }

8
target/i386/kvm/kvm.c
View File

@ -1603,7 +1603,7 @@ static int hyperv_init_vcpu(X86CPU *cpu)
error_setg(&hv_passthrough_mig_blocker, error_setg(&hv_passthrough_mig_blocker,
"'hv-passthrough' CPU flag prevents migration, use explicit" "'hv-passthrough' CPU flag prevents migration, use explicit"
" set of hv-* flags instead"); " set of hv-* flags instead");
ret = migrate_add_blocker(hv_passthrough_mig_blocker, &local_err); ret = migrate_add_blocker(&hv_passthrough_mig_blocker, &local_err);
if (ret < 0) { if (ret < 0) {
error_report_err(local_err); error_report_err(local_err);
return ret; return ret;
@ -1617,7 +1617,7 @@ static int hyperv_init_vcpu(X86CPU *cpu)
" use explicit 'hv-no-nonarch-coresharing=on' instead (but" " use explicit 'hv-no-nonarch-coresharing=on' instead (but"
" make sure SMT is disabled and/or that vCPUs are properly" " make sure SMT is disabled and/or that vCPUs are properly"
" pinned)"); " pinned)");
ret = migrate_add_blocker(hv_no_nonarch_cs_mig_blocker, &local_err); ret = migrate_add_blocker(&hv_no_nonarch_cs_mig_blocker, &local_err);
if (ret < 0) { if (ret < 0) {
error_report_err(local_err); error_report_err(local_err);
return ret; return ret;
@ -2213,7 +2213,7 @@ int kvm_arch_init_vcpu(CPUState *cs)
error_setg(&invtsc_mig_blocker, error_setg(&invtsc_mig_blocker,
"State blocked by non-migratable CPU device" "State blocked by non-migratable CPU device"
" (invtsc flag)"); " (invtsc flag)");
r = migrate_add_blocker(invtsc_mig_blocker, &local_err); r = migrate_add_blocker(&invtsc_mig_blocker, &local_err);
if (r < 0) { if (r < 0) {
error_report_err(local_err); error_report_err(local_err);
return r; return r;
@ -2271,7 +2271,7 @@ int kvm_arch_init_vcpu(CPUState *cs)
return 0; return 0;
fail: fail:
migrate_del_blocker(invtsc_mig_blocker); migrate_del_blocker(&invtsc_mig_blocker);
return r; return r;
} }

3
target/i386/nvmm/nvmm-all.c
View File

@ -929,9 +929,8 @@ nvmm_init_vcpu(CPUState *cpu)
error_setg(&nvmm_migration_blocker, error_setg(&nvmm_migration_blocker,
"NVMM: Migration not supported"); "NVMM: Migration not supported");
if (migrate_add_blocker(nvmm_migration_blocker, &local_error) < 0) { if (migrate_add_blocker(&nvmm_migration_blocker, &local_error) < 0) {
error_report_err(local_error); error_report_err(local_error);
error_free(nvmm_migration_blocker);
return -EINVAL; return -EINVAL;
} }
} }

2
target/i386/sev.c
View File

@ -891,7 +891,7 @@ sev_launch_finish(SevGuestState *sev)
/* add migration blocker */ /* add migration blocker */
error_setg(&sev_mig_blocker, error_setg(&sev_mig_blocker,
"SEV: Migration is not implemented"); "SEV: Migration is not implemented");
migrate_add_blocker(sev_mig_blocker, &error_fatal); migrate_add_blocker(&sev_mig_blocker, &error_fatal);
} }
static void static void

3
target/i386/whpx/whpx-all.c
View File

@ -2160,9 +2160,8 @@ int whpx_init_vcpu(CPUState *cpu)
"State blocked due to non-migratable CPUID feature support," "State blocked due to non-migratable CPUID feature support,"
"dirty memory tracking support, and XSAVE/XRSTOR support"); "dirty memory tracking support, and XSAVE/XRSTOR support");
if (migrate_add_blocker(whpx_migration_blocker, &local_error) < 0) { if (migrate_add_blocker(&whpx_migration_blocker, &local_error) < 0) {
error_report_err(local_error); error_report_err(local_error);
error_free(whpx_migration_blocker);
ret = -EINVAL; ret = -EINVAL;
goto error; goto error;
} }

98
tests/qtest/libqtest.c
View File

@ -91,6 +91,7 @@ struct QTestState
static GHookList abrt_hooks; static GHookList abrt_hooks;
static void (*sighandler_old)(int); static void (*sighandler_old)(int);
static bool silence_spawn_log;
static int qtest_query_target_endianness(QTestState *s); static int qtest_query_target_endianness(QTestState *s);
@ -336,10 +337,17 @@ void qtest_remove_abrt_handler(void *data)
} }
} }
static const char *qtest_qemu_binary(void) static const char *qtest_qemu_binary(const char *var)
{ {
const char *qemu_bin; const char *qemu_bin;
if (var) {
qemu_bin = getenv(var);
if (qemu_bin) {
return qemu_bin;
}
}
qemu_bin = getenv("QTEST_QEMU_BINARY"); qemu_bin = getenv("QTEST_QEMU_BINARY");
if (!qemu_bin) { if (!qemu_bin) {
fprintf(stderr, "Environment variable QTEST_QEMU_BINARY required\n"); fprintf(stderr, "Environment variable QTEST_QEMU_BINARY required\n");
@ -381,7 +389,8 @@ static pid_t qtest_create_process(char *cmd)
} }
#endif /* _WIN32 */ #endif /* _WIN32 */
static QTestState *G_GNUC_PRINTF(1, 2) qtest_spawn_qemu(const char *fmt, ...) static QTestState *G_GNUC_PRINTF(2, 3) qtest_spawn_qemu(const char *qemu_bin,
const char *fmt, ...)
{ {
va_list ap; va_list ap;
QTestState *s = g_new0(QTestState, 1); QTestState *s = g_new0(QTestState, 1);
@ -391,14 +400,15 @@ static QTestState *G_GNUC_PRINTF(1, 2) qtest_spawn_qemu(const char *fmt, ...)
g_autoptr(GString) command = g_string_new(""); g_autoptr(GString) command = g_string_new("");
va_start(ap, fmt); va_start(ap, fmt);
g_string_append_printf(command, CMD_EXEC "%s %s", g_string_append_printf(command, CMD_EXEC "%s %s", qemu_bin, tracearg);
qtest_qemu_binary(), tracearg);
g_string_append_vprintf(command, fmt, ap); g_string_append_vprintf(command, fmt, ap);
va_end(ap); va_end(ap);
qtest_add_abrt_handler(kill_qemu_hook_func, s); qtest_add_abrt_handler(kill_qemu_hook_func, s);
g_test_message("starting QEMU: %s", command->str); if (!silence_spawn_log) {
g_test_message("starting QEMU: %s", command->str);
}
#ifndef _WIN32 #ifndef _WIN32
s->qemu_pid = fork(); s->qemu_pid = fork();
@ -431,7 +441,8 @@ static QTestState *G_GNUC_PRINTF(1, 2) qtest_spawn_qemu(const char *fmt, ...)
return s; return s;
} }
QTestState *qtest_init_without_qmp_handshake(const char *extra_args) static QTestState *qtest_init_internal(const char *qemu_bin,
const char *extra_args)
{ {
QTestState *s; QTestState *s;
int sock, qmpsock, i; int sock, qmpsock, i;
@ -456,7 +467,8 @@ QTestState *qtest_init_without_qmp_handshake(const char *extra_args)
sock = init_socket(socket_path); sock = init_socket(socket_path);
qmpsock = init_socket(qmp_socket_path); qmpsock = init_socket(qmp_socket_path);
s = qtest_spawn_qemu("-qtest unix:%s " s = qtest_spawn_qemu(qemu_bin,
"-qtest unix:%s "
"-qtest-log %s " "-qtest-log %s "
"-chardev socket,path=%s,id=char0 " "-chardev socket,path=%s,id=char0 "
"-mon chardev=char0,mode=control " "-mon chardev=char0,mode=control "
@ -509,9 +521,14 @@ QTestState *qtest_init_without_qmp_handshake(const char *extra_args)
return s; return s;
} }
QTestState *qtest_init(const char *extra_args) QTestState *qtest_init_without_qmp_handshake(const char *extra_args)
{ {
QTestState *s = qtest_init_without_qmp_handshake(extra_args); return qtest_init_internal(qtest_qemu_binary(NULL), extra_args);
}
QTestState *qtest_init_with_env(const char *var, const char *extra_args)
{
QTestState *s = qtest_init_internal(qtest_qemu_binary(var), extra_args);
QDict *greeting; QDict *greeting;
/* Read the QMP greeting and then do the handshake */ /* Read the QMP greeting and then do the handshake */
@ -522,6 +539,11 @@ QTestState *qtest_init(const char *extra_args)
return s; return s;
} }
QTestState *qtest_init(const char *extra_args)
{
return qtest_init_with_env(NULL, extra_args);
}
QTestState *qtest_vinitf(const char *fmt, va_list ap) QTestState *qtest_vinitf(const char *fmt, va_list ap)
{ {
char *args = g_strdup_vprintf(fmt, ap); char *args = g_strdup_vprintf(fmt, ap);
@ -905,7 +927,7 @@ char *qtest_hmp(QTestState *s, const char *fmt, ...)
const char *qtest_get_arch(void) const char *qtest_get_arch(void)
{ {
const char *qemu = qtest_qemu_binary(); const char *qemu = qtest_qemu_binary(NULL);
const char *end = strrchr(qemu, '-'); const char *end = strrchr(qemu, '-');
if (!end) { if (!end) {
@ -1449,13 +1471,26 @@ struct MachInfo {
char *alias; char *alias;
}; };
static void qtest_free_machine_list(struct MachInfo *machines)
{
if (machines) {
for (int i = 0; machines[i].name != NULL; i++) {
g_free(machines[i].name);
g_free(machines[i].alias);
}
g_free(machines);
}
}
/* /*
* Returns an array with pointers to the available machine names. * Returns an array with pointers to the available machine names.
* The terminating entry has the name set to NULL. * The terminating entry has the name set to NULL.
*/ */
static struct MachInfo *qtest_get_machines(void) static struct MachInfo *qtest_get_machines(const char *var)
{ {
static struct MachInfo *machines; static struct MachInfo *machines;
static char *qemu_var;
QDict *response, *minfo; QDict *response, *minfo;
QList *list; QList *list;
const QListEntry *p; const QListEntry *p;
@ -1464,11 +1499,21 @@ static struct MachInfo *qtest_get_machines(void)
QTestState *qts; QTestState *qts;
int idx; int idx;
if (g_strcmp0(qemu_var, var)) {
qemu_var = g_strdup(var);
/* new qemu, clear the cache */
qtest_free_machine_list(machines);
machines = NULL;
}
if (machines) { if (machines) {
return machines; return machines;
} }
qts = qtest_init("-machine none"); silence_spawn_log = !g_test_verbose();
qts = qtest_init_with_env(qemu_var, "-machine none");
response = qtest_qmp(qts, "{ 'execute': 'query-machines' }"); response = qtest_qmp(qts, "{ 'execute': 'query-machines' }");
g_assert(response); g_assert(response);
list = qdict_get_qlist(response, "return"); list = qdict_get_qlist(response, "return");
@ -1499,6 +1544,8 @@ static struct MachInfo *qtest_get_machines(void)
qtest_quit(qts); qtest_quit(qts);
qobject_unref(response); qobject_unref(response);
silence_spawn_log = false;
memset(&machines[idx], 0, sizeof(struct MachInfo)); /* Terminating entry */ memset(&machines[idx], 0, sizeof(struct MachInfo)); /* Terminating entry */
return machines; return machines;
} }
@ -1509,7 +1556,7 @@ void qtest_cb_for_every_machine(void (*cb)(const char *machine),
struct MachInfo *machines; struct MachInfo *machines;
int i; int i;
machines = qtest_get_machines(); machines = qtest_get_machines(NULL);
for (i = 0; machines[i].name != NULL; i++) { for (i = 0; machines[i].name != NULL; i++) {
/* Ignore machines that cannot be used for qtests */ /* Ignore machines that cannot be used for qtests */
@ -1525,12 +1572,28 @@ void qtest_cb_for_every_machine(void (*cb)(const char *machine),
} }
} }
bool qtest_has_machine(const char *machine) char *qtest_resolve_machine_alias(const char *var, const char *alias)
{ {
struct MachInfo *machines; struct MachInfo *machines;
int i; int i;
machines = qtest_get_machines(); machines = qtest_get_machines(var);
for (i = 0; machines[i].name != NULL; i++) {
if (machines[i].alias && g_str_equal(alias, machines[i].alias)) {
return g_strdup(machines[i].name);
}
}
return NULL;
}
bool qtest_has_machine_with_env(const char *var, const char *machine)
{
struct MachInfo *machines;
int i;
machines = qtest_get_machines(var);
for (i = 0; machines[i].name != NULL; i++) { for (i = 0; machines[i].name != NULL; i++) {
if (g_str_equal(machine, machines[i].name) || if (g_str_equal(machine, machines[i].name) ||
@ -1542,6 +1605,11 @@ bool qtest_has_machine(const char *machine)
return false; return false;
} }
bool qtest_has_machine(const char *machine)
{
return qtest_has_machine_with_env(NULL, machine);
}
bool qtest_has_device(const char *device) bool qtest_has_device(const char *device)
{ {
static QList *list; static QList *list;

32
tests/qtest/libqtest.h
View File

@ -55,6 +55,19 @@ QTestState *qtest_vinitf(const char *fmt, va_list ap) G_GNUC_PRINTF(1, 0);
*/ */
QTestState *qtest_init(const char *extra_args); QTestState *qtest_init(const char *extra_args);
/**
* qtest_init_with_env:
* @var: Environment variable from where to take the QEMU binary
* @extra_args: Other arguments to pass to QEMU. CAUTION: these
* arguments are subject to word splitting and shell evaluation.
*
* Like qtest_init(), but use a different environment variable for the
* QEMU binary.
*
* Returns: #QTestState instance.
*/
QTestState *qtest_init_with_env(const char *var, const char *extra_args);
/** /**
* qtest_init_without_qmp_handshake: * qtest_init_without_qmp_handshake:
* @extra_args: other arguments to pass to QEMU. CAUTION: these * @extra_args: other arguments to pass to QEMU. CAUTION: these
@ -909,6 +922,16 @@ void qtest_qmp_fds_assert_success(QTestState *qts, int *fds, size_t nfds,
void qtest_cb_for_every_machine(void (*cb)(const char *machine), void qtest_cb_for_every_machine(void (*cb)(const char *machine),
bool skip_old_versioned); bool skip_old_versioned);
/**
* qtest_resolve_machine_alias:
* @var: Environment variable from where to take the QEMU binary
* @alias: The alias to resolve
*
* Returns: the machine type corresponding to the alias if any,
* otherwise NULL.
*/
char *qtest_resolve_machine_alias(const char *var, const char *alias);
/** /**
* qtest_has_machine: * qtest_has_machine:
* @machine: The machine to look for * @machine: The machine to look for
@ -917,6 +940,15 @@ void qtest_cb_for_every_machine(void (*cb)(const char *machine),
*/ */
bool qtest_has_machine(const char *machine); bool qtest_has_machine(const char *machine);
/**
* qtest_has_machine_with_env:
* @var: Environment variable from where to take the QEMU binary
* @machine: The machine to look for
*
* Returns: true if the machine is available in the specified binary.
*/
bool qtest_has_machine_with_env(const char *var, const char *machine);
/** /**
* qtest_has_device: * qtest_has_device:
* @device: The device to look for * @device: The device to look for

52
tests/qtest/migration-helpers.c
View File

@ -11,6 +11,7 @@
*/ */
#include "qemu/osdep.h" #include "qemu/osdep.h"
#include "qemu/ctype.h"
#include "qapi/qmp/qjson.h" #include "qapi/qmp/qjson.h"
#include "migration-helpers.h" #include "migration-helpers.h"
@ -240,3 +241,54 @@ void wait_for_migration_fail(QTestState *from, bool allow_active)
g_assert(qdict_get_bool(rsp_return, "running")); g_assert(qdict_get_bool(rsp_return, "running"));
qobject_unref(rsp_return); qobject_unref(rsp_return);
} }
char *find_common_machine_version(const char *mtype, const char *var1,
const char *var2)
{
g_autofree char *type1 = qtest_resolve_machine_alias(var1, mtype);
g_autofree char *type2 = qtest_resolve_machine_alias(var2, mtype);
g_assert(type1 && type2);
if (g_str_equal(type1, type2)) {
/* either can be used */
return g_strdup(type1);
}
if (qtest_has_machine_with_env(var2, type1)) {
return g_strdup(type1);
}
if (qtest_has_machine_with_env(var1, type2)) {
return g_strdup(type2);
}
g_test_message("No common machine version for machine type '%s' between "
"binaries %s and %s", mtype, getenv(var1), getenv(var2));
g_assert_not_reached();
}
char *resolve_machine_version(const char *alias, const char *var1,
const char *var2)
{
const char *mname = g_getenv("QTEST_QEMU_MACHINE_TYPE");
g_autofree char *machine_name = NULL;
if (mname) {
const char *dash = strrchr(mname, '-');
const char *dot = strrchr(mname, '.');
machine_name = g_strdup(mname);
if (dash && dot) {
assert(qtest_has_machine(machine_name));
return g_steal_pointer(&machine_name);
}
/* else: probably an alias, let it be resolved below */
} else {
/* use the hardcoded alias */
machine_name = g_strdup(alias);
}
return find_common_machine_version(machine_name, var1, var2);
}

4
tests/qtest/migration-helpers.h
View File

@ -43,4 +43,8 @@ void wait_for_migration_complete(QTestState *who);
void wait_for_migration_fail(QTestState *from, bool allow_active); void wait_for_migration_fail(QTestState *from, bool allow_active);
char *find_common_machine_version(const char *mtype, const char *var1,
const char *var2);
char *resolve_machine_version(const char *alias, const char *var1,
const char *var2);
#endif /* MIGRATION_HELPERS_H */ #endif /* MIGRATION_HELPERS_H */

50
tests/qtest/migration-test.c
View File

@ -71,6 +71,8 @@ static bool got_dst_resume;
#define QEMU_VM_FILE_MAGIC 0x5145564d #define QEMU_VM_FILE_MAGIC 0x5145564d
#define FILE_TEST_FILENAME "migfile" #define FILE_TEST_FILENAME "migfile"
#define FILE_TEST_OFFSET 0x1000 #define FILE_TEST_OFFSET 0x1000
#define QEMU_ENV_SRC "QTEST_QEMU_BINARY_SRC"
#define QEMU_ENV_DST "QTEST_QEMU_BINARY_DST"
#if defined(__linux__) #if defined(__linux__)
#include <sys/syscall.h> #include <sys/syscall.h>
@ -743,6 +745,8 @@ static int test_migrate_start(QTestState **from, QTestState **to,
const char *kvm_opts = NULL; const char *kvm_opts = NULL;
const char *arch = qtest_get_arch(); const char *arch = qtest_get_arch();
const char *memory_size; const char *memory_size;
const char *machine_alias, *machine_opts = "";
g_autofree char *machine = NULL;
if (args->use_shmem) { if (args->use_shmem) {
if (!g_file_test("/dev/shm", G_FILE_TEST_IS_DIR)) { if (!g_file_test("/dev/shm", G_FILE_TEST_IS_DIR)) {
@ -755,11 +759,20 @@ static int test_migrate_start(QTestState **from, QTestState **to,
got_dst_resume = false; got_dst_resume = false;
if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) { if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
memory_size = "150M"; memory_size = "150M";
arch_opts = g_strdup_printf("-drive file=%s,format=raw", bootpath);
if (g_str_equal(arch, "i386")) {
machine_alias = "pc";
} else {
machine_alias = "q35";
}
arch_opts = g_strdup_printf(
"-drive if=none,id=d0,file=%s,format=raw "
"-device ide-hd,drive=d0,secs=1,cyls=1,heads=1", bootpath);
start_address = X86_TEST_MEM_START; start_address = X86_TEST_MEM_START;
end_address = X86_TEST_MEM_END; end_address = X86_TEST_MEM_END;
} else if (g_str_equal(arch, "s390x")) { } else if (g_str_equal(arch, "s390x")) {
memory_size = "128M"; memory_size = "128M";
machine_alias = "s390-ccw-virtio";
arch_opts = g_strdup_printf("-bios %s", bootpath); arch_opts = g_strdup_printf("-bios %s", bootpath);
start_address = S390_TEST_MEM_START; start_address = S390_TEST_MEM_START;
end_address = S390_TEST_MEM_END; end_address = S390_TEST_MEM_END;
@ -771,11 +784,14 @@ static int test_migrate_start(QTestState **from, QTestState **to,
"'nvramrc=hex .\" _\" begin %x %x " "'nvramrc=hex .\" _\" begin %x %x "
"do i c@ 1 + i c! 1000 +loop .\" B\" 0 " "do i c@ 1 + i c! 1000 +loop .\" B\" 0 "
"until'", end_address, start_address); "until'", end_address, start_address);
arch_opts = g_strdup("-nodefaults -machine vsmt=8"); machine_alias = "pseries";
machine_opts = "vsmt=8";
arch_opts = g_strdup("-nodefaults");
} else if (strcmp(arch, "aarch64") == 0) { } else if (strcmp(arch, "aarch64") == 0) {
memory_size = "150M"; memory_size = "150M";
arch_opts = g_strdup_printf("-machine virt,gic-version=max -cpu max " machine_alias = "virt";
"-kernel %s", bootpath); machine_opts = "gic-version=max";
arch_opts = g_strdup_printf("-cpu max -kernel %s", bootpath);
start_address = ARM_TEST_MEM_START; start_address = ARM_TEST_MEM_START;
end_address = ARM_TEST_MEM_END; end_address = ARM_TEST_MEM_END;
} else { } else {
@ -809,12 +825,19 @@ static int test_migrate_start(QTestState **from, QTestState **to,
kvm_opts = ",dirty-ring-size=4096"; kvm_opts = ",dirty-ring-size=4096";
} }
machine = resolve_machine_version(machine_alias, QEMU_ENV_SRC,
QEMU_ENV_DST);
g_test_message("Using machine type: %s", machine);
cmd_source = g_strdup_printf("-accel kvm%s -accel tcg " cmd_source = g_strdup_printf("-accel kvm%s -accel tcg "
"-machine %s,%s "
"-name source,debug-threads=on " "-name source,debug-threads=on "
"-m %s " "-m %s "
"-serial file:%s/src_serial " "-serial file:%s/src_serial "
"%s %s %s %s %s", "%s %s %s %s %s",
kvm_opts ? kvm_opts : "", kvm_opts ? kvm_opts : "",
machine, machine_opts,
memory_size, tmpfs, memory_size, tmpfs,
arch_opts ? arch_opts : "", arch_opts ? arch_opts : "",
arch_source ? arch_source : "", arch_source ? arch_source : "",
@ -822,26 +845,28 @@ static int test_migrate_start(QTestState **from, QTestState **to,
args->opts_source ? args->opts_source : "", args->opts_source ? args->opts_source : "",
ignore_stderr); ignore_stderr);
if (!args->only_target) { if (!args->only_target) {
*from = qtest_init(cmd_source); *from = qtest_init_with_env(QEMU_ENV_SRC, cmd_source);
qtest_qmp_set_event_callback(*from, qtest_qmp_set_event_callback(*from,
migrate_watch_for_stop, migrate_watch_for_stop,
&got_src_stop); &got_src_stop);
} }
cmd_target = g_strdup_printf("-accel kvm%s -accel tcg " cmd_target = g_strdup_printf("-accel kvm%s -accel tcg "
"-machine %s,%s "
"-name target,debug-threads=on " "-name target,debug-threads=on "
"-m %s " "-m %s "
"-serial file:%s/dest_serial " "-serial file:%s/dest_serial "
"-incoming %s " "-incoming %s "
"%s %s %s %s %s", "%s %s %s %s %s",
kvm_opts ? kvm_opts : "", kvm_opts ? kvm_opts : "",
machine, machine_opts,
memory_size, tmpfs, uri, memory_size, tmpfs, uri,
arch_opts ? arch_opts : "", arch_opts ? arch_opts : "",
arch_target ? arch_target : "", arch_target ? arch_target : "",
shmem_opts ? shmem_opts : "", shmem_opts ? shmem_opts : "",
args->opts_target ? args->opts_target : "", args->opts_target ? args->opts_target : "",
ignore_stderr); ignore_stderr);
*to = qtest_init(cmd_target); *to = qtest_init_with_env(QEMU_ENV_DST, cmd_target);
qtest_qmp_set_event_callback(*to, qtest_qmp_set_event_callback(*to,
migrate_watch_for_resume, migrate_watch_for_resume,
&got_dst_resume); &got_dst_resume);
@ -2972,10 +2997,23 @@ int main(int argc, char **argv)
bool has_uffd; bool has_uffd;
const char *arch; const char *arch;
g_autoptr(GError) err = NULL; g_autoptr(GError) err = NULL;
const char *qemu_src = getenv(QEMU_ENV_SRC);
const char *qemu_dst = getenv(QEMU_ENV_DST);
int ret; int ret;
g_test_init(&argc, &argv, NULL); g_test_init(&argc, &argv, NULL);
/*
* The default QTEST_QEMU_BINARY must always be provided because
* that is what helpers use to query the accel type and
* architecture.
*/
if (qemu_src && qemu_dst) {
g_test_message("Only one of %s, %s is allowed",
QEMU_ENV_SRC, QEMU_ENV_DST);
exit(1);
}
has_kvm = qtest_has_accel("kvm"); has_kvm = qtest_has_accel("kvm");
has_tcg = qtest_has_accel("tcg"); has_tcg = qtest_has_accel("tcg");

3
ui/spice-core.c
View File

@ -821,8 +821,7 @@ static void qemu_spice_init(void)
}; };
using_spice = 1; using_spice = 1;
migration_state.notify = migration_state_notifier; migration_add_notifier(&migration_state, migration_state_notifier);
add_migration_state_change_notifier(&migration_state);
spice_migrate.base.sif = &migrate_interface.base; spice_migrate.base.sif = &migrate_interface.base;
qemu_spice.add_interface(&spice_migrate.base); qemu_spice.add_interface(&spice_migrate.base);

5
ui/vdagent.c
View File

@ -671,7 +671,7 @@ static void vdagent_chr_open(Chardev *chr,
return; return;
#endif #endif
if (migrate_add_blocker(vd->migration_blocker, errp) != 0) { if (migrate_add_blocker(&vd->migration_blocker, errp) != 0) {
return; return;
} }
@ -924,13 +924,12 @@ static void vdagent_chr_fini(Object *obj)
{ {
VDAgentChardev *vd = QEMU_VDAGENT_CHARDEV(obj); VDAgentChardev *vd = QEMU_VDAGENT_CHARDEV(obj);
migrate_del_blocker(vd->migration_blocker); migrate_del_blocker(&vd->migration_blocker);
vdagent_disconnect(vd); vdagent_disconnect(vd);
if (vd->mouse_hs) { if (vd->mouse_hs) {
qemu_input_handler_unregister(vd->mouse_hs); qemu_input_handler_unregister(vd->mouse_hs);
} }
buffer_free(&vd->outbuf); buffer_free(&vd->outbuf);
error_free(vd->migration_blocker);
} }
static const TypeInfo vdagent_chr_type_info = { static const TypeInfo vdagent_chr_type_info = {