[PULL 00/31] Threading, Rust, i386 changes for 2025-06-06

[Paolo Bonzini <pbonzini@redhat.com>]

The following changes since commit f8a113701dd2d28f3bedb216e59125ddcb77fd05:

  Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging (2025-06-04 11:43:31 -0400)

are available in the Git repository at:

  https://gitlab.com/bonzini/qemu.git tags/for-upstream

for you to fetch changes up to 3f9bdfb0dc8162cbc080c868625336178ddcda56:

  tests/tcg/x86_64/fma: add test for exact-denormal output (2025-06-06 14:32:55 +0200)

----------------------------------------------------------------
* futex: support Windows
* qemu-thread: Avoid futex abstraction for non-Linux
* migration, hw/display/apple-gfx: replace QemuSemaphore with QemuEvent
* rust: bindings for Error
* hpet, rust/hpet: return errors from realize if properties are incorrect
* rust/hpet: Drop BqlCell wrapper for num_timers
* target/i386: Emulate ftz and denormal flag bits correctly
* i386/kvm: Prefault memory on page state change

----------------------------------------------------------------
Akihiko Odaki (11):
      futex: Check value after qemu_futex_wait()
      futex: Support Windows
      qemu-thread: Replace __linux__ with CONFIG_LINUX
      qemu-thread: Avoid futex abstraction for non-Linux
      qemu-thread: Use futex for QemuEvent on Windows
      qemu-thread: Use futex if available for QemuLockCnt
      qemu-thread: Document QemuEvent
      migration: Replace QemuSemaphore with QemuEvent
      migration/colo: Replace QemuSemaphore with QemuEvent
      migration/postcopy: Replace QemuSemaphore with QemuEvent
      hw/display/apple-gfx: Replace QemuSemaphore with QemuEvent

Paolo Bonzini (14):
      subprojects: add the anyhow crate
      subprojects: add the foreign crate
      util/error: expose Error definition to Rust code
      util/error: allow non-NUL-terminated err->src
      util/error: make func optional
      rust: qemu-api: add bindings to Error
      rust: qemu-api: add tests for Error bindings
      rust: qdev: support returning errors from realize
      rust/hpet: change type of num_timers to usize
      hpet: adjust VMState for consistency with Rust version
      hpet: return errors from realize if properties are incorrect
      rust/hpet: return errors from realize if properties are incorrect
      docs: update Rust module status
      rust: make TryFrom macro more resilient

Peter Maydell (4):
      target/i386: Detect flush-to-zero after rounding
      target/i386: Use correct type for get_float_exception_flags() values
      target/i386: Wire up MXCSR.DE and FPUS.DE correctly
      tests/tcg/x86_64/fma: add test for exact-denormal output

Tom Lendacky (1):
      i386/kvm: Prefault memory on page state change

Zhao Liu (1):
      rust/hpet: Drop BqlCell wrapper for num_timers

 docs/devel/rust.rst                                |   7 +-
 meson.build                                        |   7 +
 include/qapi/error-internal.h                      |  35 ++
 include/qemu/futex.h                               |  44 ++-
 include/qemu/lockcnt.h                             |   2 +-
 include/qemu/thread-posix.h                        |   9 -
 include/qemu/thread-win32.h                        |   6 -
 include/qemu/thread.h                              |  21 +-
 include/system/kvm.h                               |   1 +
 migration/migration.h                              |  12 +-
 rust/wrapper.h                                     |   1 +
 target/i386/ops_sse.h                              |  16 +-
 accel/kvm/kvm-all.c                                |   2 +
 hw/timer/hpet.c                                    |  21 +-
 migration/colo.c                                   |  20 +-
 migration/migration.c                              |  21 +-
 migration/postcopy-ram.c                           |  10 +-
 migration/savevm.c                                 |   2 +-
 target/i386/kvm/kvm.c                              |  31 +-
 target/i386/tcg/fpu_helper.c                       | 101 +++--
 tests/tcg/x86_64/fma.c                             |  17 +-
 tests/unit/test-aio-multithread.c                  |   6 +-
 util/error.c                                       |  20 +-
 util/event.c                                       | 171 +++++++++
 util/lockcnt.c                                     |   9 +-
 util/qemu-thread-posix.c                           | 148 --------
 util/qemu-thread-win32.c                           | 129 -------
 hw/display/apple-gfx.m                             |  10 +-
 rust/Cargo.lock                                    |  17 +
 rust/Cargo.toml                                    |   1 +
 rust/hw/char/pl011/src/device.rs                   |   5 +-
 rust/hw/timer/hpet/src/device.rs                   |  62 ++-
 rust/hw/timer/hpet/src/fw_cfg.rs                   |   7 +-
 rust/meson.build                                   |   4 +
 rust/qemu-api-macros/src/lib.rs                    |   7 +-
 rust/qemu-api/Cargo.toml                           |   2 +
 rust/qemu-api/meson.build                          |   3 +-
 rust/qemu-api/src/error.rs                         | 416 +++++++++++++++++++++
 rust/qemu-api/src/lib.rs                           |   3 +
 rust/qemu-api/src/qdev.rs                          |  12 +-
 scripts/archive-source.sh                          |   5 +-
 scripts/make-release                               |   5 +-
 subprojects/.gitignore                             |   2 +
 subprojects/anyhow-1-rs.wrap                       |   7 +
 subprojects/foreign-0.3-rs.wrap                    |   7 +
 subprojects/packagefiles/anyhow-1-rs/meson.build   |  33 ++
 .../packagefiles/foreign-0.3-rs/meson.build        |  26 ++
 util/meson.build                                   |   3 +-
 48 files changed, 1018 insertions(+), 488 deletions(-)
 create mode 100644 include/qapi/error-internal.h
 create mode 100644 util/event.c
 create mode 100644 rust/qemu-api/src/error.rs
 create mode 100644 subprojects/anyhow-1-rs.wrap
 create mode 100644 subprojects/foreign-0.3-rs.wrap
 create mode 100644 subprojects/packagefiles/anyhow-1-rs/meson.build
 create mode 100644 subprojects/packagefiles/foreign-0.3-rs/meson.build
-- 
2.49.0