Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* scripts: dump stdin on meson-buildoptions error
* rust: introduce qemu_api::cell::Opaque<>
* rust: express pinning requirements for timers
* rust: hpet: decode HPET registers into enums
* rust: cell: add full example of declaring a SysBusDevice
* rust: qom: remove operations on &mut

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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (25 commits)
  rust: pl011: Allow NULL chardev argument to pl011_create()
  meson.build: default to -gsplit-dwarf for debug info
  rust: qom: remove operations on &mut
  rust: cell: add full example of declaring a SysBusDevice
  rust: hpet: decode HPET registers into enums
  rust: pl011: pass around registers::Data
  rust: pl011: switch to safe chardev operation
  rust: pl011: clean up visibilities of callbacks
  rust: pl011: move register definitions out of lib.rs
  rust: chardev: provide basic bindings to character devices
  rust: bindings: remove more unnecessary Send/Sync impls
  rust: chardev: wrap Chardev with Opaque<>
  rust: memory: wrap MemoryRegion with Opaque<>
  rust: sysbus: wrap SysBusDevice with Opaque<>
  rust: hpet: do not access fields of SysBusDevice
  rust: qdev: wrap Clock and DeviceState with Opaque<>
  rust: qom: wrap Object with Opaque<>
  rust: irq: wrap IRQState with Opaque<>
  rust: timer: wrap QEMUTimer with Opaque<> and express pinning requirements
  rust: hpet: embed Timer without the Option and Box indirection
  ...

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