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* rust: split "util" crateMarc-André Lureau2025-09-171-125/+0
| | | | | | | Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Link: https://lore.kernel.org/r/20250827104147.717203-7-marcandre.lureau@redhat.com Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* rust: split Rust-only "common" crateMarc-André Lureau2025-09-171-4/+4
| | | | | | | Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Link: https://lore.kernel.org/r/20250827104147.717203-6-marcandre.lureau@redhat.com Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* rust: use inline const expressionsPaolo Bonzini2025-09-171-1/+1
| | | | | | | | They were stabilized in Rust 1.79.0. Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Link: https://lore.kernel.org/r/20250908105005.2119297-6-pbonzini@redhat.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* rust: add missing const markers for MSRV==1.83.0Paolo Bonzini2025-09-171-1/+1
| | | | | | | | | Rust 1.83 allows more functions to be marked const. Fix clippy with bumped minimum supported Rust version. Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Link: https://lore.kernel.org/r/20250908105005.2119297-5-pbonzini@redhat.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* rust: Fix Zhao's email addressZhao Liu2025-05-261-1/+1
| | | | | | | | No one could find Zhao Liu via zhai1.liu@intel.com. Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Link: https://lore.kernel.org/r/20250520152750.2542612-5-zhao1.liu@intel.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* rust: enable clippy::ptr_cast_constnessPaolo Bonzini2025-05-061-1/+1
| | | | | | Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* rust: use std::ffi instead of std::os::rawPaolo Bonzini2025-05-061-1/+1
| | | | | | | | This is allowed since Rust 1.64.0. Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* rust/timer: Define NANOSECONDS_PER_SECOND binding as u64Zhao Liu2025-05-021-0/+2
| | | | | | | | | | | | NANOSECONDS_PER_SECOND is often used in operations with get_ns(), which currently returns a u64. Therefore, define a new NANOSECONDS_PER_SECOND binding is with u64 type to eliminate unnecessary type conversions (from u32 to u64). Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Link: https://lore.kernel.org/r/20250414144943.1112885-6-zhao1.liu@intel.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* rust: timer: wrap QEMUTimer with Opaque<> and express pinning requirementsPaolo Bonzini2025-03-061-11/+36
| | | | | | | | | | | | | | | | | | | | | | | Timers must be pinned in memory, because modify() stores a pointer to them in the TimerList. To express this requirement, change init_full() to take a pinned reference. Because the only way to obtain a Timer is through Timer::new(), which is unsafe, modify() can assume that the timer it got was later initialized; and because the initialization takes a Pin<&mut Timer> modify() can assume that the timer is pinned. In the future the pinning requirement will be expressed through the pin_init crate instead. Note that Timer is a bit different from other users of Opaque, in that it is created in Rust code rather than C code. This is why it has to use the unsafe constructors provided by Opaque; and in fact Timer::new() is also unsafe, because it leaves it to the caller to invoke init_full() before modify(). Without a call to init_full(), modify() will cause a NULL pointer dereference. An alternative could be to combine new() + init_full() by returning a pinned box; however, using a reference makes it easier to express the requirement that the opaque outlives the timer. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* rust: add bindings for timerZhao Liu2025-02-131-0/+98
Add timer bindings to help handle idiomatic Rust callbacks. Additionally, wrap QEMUClockType in ClockType binding to avoid unsafe calls in device code. Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Link: https://lore.kernel.org/r/20250210030051.2562726-7-zhao1.liu@intel.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>