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

* i386: fix migration issues in 10.1
* target/i386/mshv: new accelerator
* rust: use glib-sys-rs
* rust: fixes for docker tests

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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (35 commits)
  rust: fix path to rust_root_crate.sh
  tests/docker: make --enable-rust overridable with EXTRA_CONFIGURE_OPTS
  MAINTAINERS: Add maintainers for mshv accelerator
  docs: Add mshv to documentation
  target/i386/mshv: Use preallocated page for hvcall
  qapi/accel: Allow to query mshv capabilities
  accel/mshv: Handle overlapping mem mappings
  target/i386/mshv: Implement mshv_vcpu_run()
  target/i386/mshv: Write MSRs to the hypervisor
  target/i386/mshv: Integrate x86 instruction decoder/emulator
  target/i386/mshv: Register MSRs with MSHV
  target/i386/mshv: Register CPUID entries with MSHV
  target/i386/mshv: Set local interrupt controller state
  target/i386/mshv: Implement mshv_arch_put_registers()
  target/i386/mshv: Implement mshv_get_special_regs()
  target/i386/mshv: Implement mshv_get_standard_regs()
  target/i386/mshv: Implement mshv_store_regs()
  target/i386/mshv: Add CPU create and remove logic
  accel/mshv: Add vCPU signal handling
  accel/mshv: Add vCPU creation and execution loop
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>