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>

docs/about/build-platforms.rst

@@ -53,7 +53,7 @@ Those hosts are officially supported, with various accelerators:
    * - SPARC
      - tcg
    * - x86
-     - hvf (64 bit only), kvm, nvmm, tcg, whpx (64 bit only), xen
+     - hvf (64 bit only), mshv (64 bit only), kvm, nvmm, tcg, whpx (64 bit only), xen
 
 Other host architectures are not supported. It is possible to build QEMU system
 emulation on an unsupported host architecture using the configure

docs/devel/codebase.rst

@@ -48,7 +48,7 @@ yet, so sometimes the source code is all you have.
 * `accel <https://gitlab.com/qemu-project/qemu/-/tree/master/accel>`_:
   Infrastructure and architecture agnostic code related to the various
   `accelerators <Accelerators>` supported by QEMU
-  (TCG, KVM, hvf, whpx, xen, nvmm).
+  (TCG, KVM, hvf, whpx, xen, nvmm, mshv).
   Contains interfaces for operations that will be implemented per
   `target <https://gitlab.com/qemu-project/qemu/-/tree/master/target>`_.
 * `audio <https://gitlab.com/qemu-project/qemu/-/tree/master/audio>`_:

docs/glossary.rst

@@ -12,7 +12,7 @@ Accelerator
 
 A specific API used to accelerate execution of guest instructions. It can be
 hardware-based, through a virtualization API provided by the host OS (kvm, hvf,
-whpx, ...), or software-based (tcg). See this description of `supported
+whpx, mshv, ...), or software-based (tcg). See this description of `supported
 accelerators<Accelerators>`.
 
 Board
@@ -101,9 +101,8 @@ manage a virtual machine. QEMU is a virtualizer, that interacts with various
 hypervisors.
 
 In the context of QEMU, an hypervisor is an API, provided by the Host OS,
-allowing to execute virtual machines. Linux implementation is KVM (and supports
-Xen as well). For MacOS, it's HVF. Windows defines WHPX. And NetBSD provides
-NVMM.
+allowing to execute virtual machines.  Linux provides a choice of KVM, Xen
+or MSHV; MacOS provides HVF; Windows provides WHPX; NetBSD provides NVMM.
 
 .. _machine:
 

docs/system/introduction.rst

@@ -23,6 +23,9 @@ Tiny Code Generator (TCG) capable of emulating many CPUs.
   * - Xen
     - Linux (as dom0)
     - Arm, x86
+  * - MSHV
+    - Linux (as dom0)
+    - x86
   * - Hypervisor Framework (hvf)
     - MacOS
     - x86 (64 bit only), Arm (64 bit only)