[PATCH v2 0/8] migration: Remove extra type-checking from vmstate macros

[Fabiano Rosas <farosas@suse.de>]

Changes in v2:

- Removed more unused vmstate macros
- Fixed the type check macro
- Renamed the new structure to something more explicit
- Added a new flag to indicate an empty vmstate
- Added the overflow and overallocation checks

CI run: https://gitlab.com/farosas/qemu/-/pipelines/2769617319
Also tested:
- migration-test --full --thorough
- x86_64 compat run forward and backwards for previous 3 QEMU releases
- s390x compat run forward and backwards for previous 2 QEMU releases
- ppc64 compat run forward and backwards for previous QEMU release
- migration-test smoke ASAN/UBSAN run

v1:
https://lore.kernel.org/r/20260729225227.1170574-1-farosas@suse.de

Hi, this is basically what I ranted about in:
https://lore.kernel.org/r/87jyqeomqz.fsf@suse.de

I'm replacing the per-integer-size type checks with a single "int that
fits in 32bit" check. This allows several lines of duplicated code to
be removed.

I haven't changed the macro names in the device code yet. If this
series gets positive feedback then I'll send per-subsystem patches
doing that.

CI run: https://gitlab.com/farosas/qemu/-/pipelines/2716814081
Also tested:
- migration-test --full --thorough
- x86_64 compat run forwards and backwards for previous 3 QEMU releases
- s390x compat run forwards and backwards for previous 2 QEMU releases
- ppc64 compat run forwards and backwards for previous QEMU release
- migration-test smoke ASAN/UBSAN run

Fabiano Rosas (8):
  migration: Remove unused vmstate macros
  migration: Introduce VMStateStructMember
  migration: Remove redundant flags
  migration: Remove duplicate vmstate macros
  migration: Add VMS_NO_STATE flag
  migration: Check more vmstate flags
  migration: Harden vmstate_handle_alloc
  migration: Harden vmstate_size

 hw/pci/msix.c                      |   6 +-
 hw/scsi/scsi-bus.c                 |   6 +-
 include/migration/vmstate.h        | 388 +++++++++++++----------------
 migration/savevm.c                 |  29 ++-
 migration/vmstate.c                | 103 +++++---
 rust/bindings/migration-sys/lib.rs |  17 +-
 rust/migration/src/vmstate.rs      |  32 ++-
 rust/tests/tests/vmstate_tests.rs  |  32 +--
 8 files changed, 331 insertions(+), 282 deletions(-)

-- 
2.53.0