Merge tag 'migration-20250129-pull-request' of https://gitlab.com/farosas/qemu into staging

Migration pull request

- Purge of ram_save_target_page_legacy
- Cleanups to postcopy, json writer, migration states
- New migration mode cpr-transfer
- Fix for a -Werror=maybe-uninitialized instance in savevm

# -----BEGIN PGP SIGNATURE-----
#
# iQJEBAABCAAuFiEEqhtIsKIjJqWkw2TPx5jcdBvsMZ0FAmeaT8EQHGZhcm9zYXNA
# c3VzZS5kZQAKCRDHmNx0G+wxndXrEACTT+rdoEvOsNs4nM2a67GjxUoQZVTAWn+8
# lYhhNZLA4E+qHwpHTDCwyfyvCe615r72+bF7QO1KTrYeXGJg4SPk5kbEhCDqqjEu
# SGqrlPwkC1x3WkTvb228iDddDQ8dccko3Sy6wAyz0o8dtp5p4iK+57qzB/84u94L
# y3zQ+owOo9OLnXgdfMpN99HGQSvPR7CbP/2L293IrMCuPDUo9XhI7ARNS/phbT3Z
# aDl10WGHKz1SJWOkPj137E6+xMKuCmOZDTufTcTaHfyliD04JRWgEZVnKJxKJDxd
# 9e+lzHvXuYfO7YO11fr7DttPRnLEfjipELVTxrudM92eZ95XwdL4+ggfBTGHt76P
# yFUrp7G8qsUjWd+DHPmoo6Gx71zPbE6v9J2NMn2/1k4WdPOYy7HTmDgCkRirRTvV
# irYkHtdSFFsj3c0g4P4mhOzXnvUkGXzgrjteM5hlLy3bjSeZz9VMZADjiGqFGVPb
# 6euPcLLa9oynkoP5UXmFd/9PjWcgnfIbQu2MVlIyWhjvTGZKSGecVZmH5pWTJuBV
# xCbab1jYprRFpUIAMo94rgvRQRosomS1+GjGndFkX5++dTTlFSqpDLSGcEnPSGRx
# o9n+IldNiqh2vjN1bj60pLfmrHN/F+hsGTsDJlW+kfeyBXBkGArg1rDjN5ae7GvD
# UZK0N+OG0g==
# =jwOI
# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 29 Jan 2025 10:56:49 EST
# gpg:                using RSA key AA1B48B0A22326A5A4C364CFC798DC741BEC319D
# gpg:                issuer "farosas@suse.de"
# gpg: Good signature from "Fabiano Rosas <farosas@suse.de>" [unknown]
# gpg:                 aka "Fabiano Almeida Rosas <fabiano.rosas@suse.com>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: AA1B 48B0 A223 26A5 A4C3  64CF C798 DC74 1BEC 319D

* tag 'migration-20250129-pull-request' of https://gitlab.com/farosas/qemu: (42 commits)
  migration: refactor ram_save_target_page functions
  migration: Trivial cleanup on JSON writer of vmstate_save()
  migration: Merge precopy/postcopy on switchover start
  migration: Always set DEVICE state
  migration: Cleanup qemu_savevm_state_complete_precopy()
  migration: Unwrap qemu_savevm_state_complete_precopy() in postcopy
  migration: Notify COMPLETE once for postcopy
  migration: Take BQL slightly longer in postcopy_start()
  migration: Drop cached migration state in migration_maybe_pause()
  migration: Adjust locking in migration_maybe_pause()
  migration: Adjust postcopy bandwidth during switchover
  migration: Synchronize all CPU states only for non-iterable dump
  migration: Drop inactivate_disk param in qemu_savevm_state_complete*
  migration: Avoid two src-downtime-end tracepoints for postcopy
  migration: Optimize postcopy on downtime by avoiding JSON writer
  migration: Do not construct JSON description if suppressed
  migration: Remove postcopy implications in should_send_vmdesc()
  migration: cpr-transfer documentation
  migration-test: cpr-transfer
  tests/qtest: assert qmp connected
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/stubs/vmstate.c b/stubs/vmstate.c
index 8513d92..c190762 100644
--- a/stubs/vmstate.c
+++ b/stubs/vmstate.c
@@ -1,5 +1,7 @@
 #include "qemu/osdep.h"
 #include "migration/vmstate.h"
+#include "qapi/qapi-types-migration.h"
+#include "migration/client-options.h"
 
 int vmstate_register_with_alias_id(VMStateIf *obj,
                                    uint32_t instance_id,
@@ -21,3 +23,8 @@ bool vmstate_check_only_migratable(const VMStateDescription *vmsd)
 {
     return true;
 }
+
+MigMode migrate_mode(void)
+{
+    return MIG_MODE_NORMAL;
+}