Re: [Qemu-devel] [PATCH 0/4] Implements the Windows Hypervisor Platform accelerator

[Stefan Weil]

Am 12.01.2018 um 21:22 schrieb Justin Terry (VM) via Qemu-devel:
> Hello QEMU Community!
> 
> Over the past few months the Hyper-V team at Microsoft has been working hard 
> on
> a new user-mode API for our hypervisor that will be released as part of the
> upcoming SDK. This new API adds user-mode capabilities to create and manage
> partitions at the hypervisor level, configure memory mappings for the
> partition, and create and control execution of virtual processors.
> 
> With this new API we are now able to bring our hypervisor to the QEMU
> community! The following patches implement the Windows Hypervisor Platform
> accelerator (WHPX) for QEMU on Windows 10 hosts.
> 
> When compiling QEMU for x86_64 passing the --enable-whpx flag will compile the
> accelerator for use. At runtime using the '-accel whpx' should see a
> significant performance improvement over emulation, much like when using 'hax'
> on Windows.
> 
> Over the next few days the pre-release version of the documentation for this 
> new
> API will be visible at https://docs.microsoft.com/en-us/virtualization under
> the 'Windows Hypervisor Platform' section. Here you will see the requirements,
> API, and examples.
> 
> Thank you for your feedback. 
> 
> Justin Terry (VM) (4):
>   Add the Windows Hypervisor Platform accelerator.
>   Add the WHPX vcpu API
>   Introduce the WHPX impl
>   Add the WHPX acceleration enlightenments
> 
>  accel/stubs/Makefile.objs |    9 +-
>  accel/stubs/whpx-stub.c   |   48 ++
>  configure                 |   48 +-
>  cpus.c                    |   66 ++-
>  include/sysemu/hw_accel.h |   13 +
>  include/sysemu/whpx.h     |   40 ++
>  qemu-options.hx           |    8 +-
>  target/i386/Makefile.objs |    1 +
>  target/i386/helper.c      |    2 +-
>  target/i386/whpx-all.c    | 1395 
> +++++++++++++++++++++++++++++++++++++++++++++
>  10 files changed, 1619 insertions(+), 11 deletions(-)
>  create mode 100644 accel/stubs/whpx-stub.c
>  create mode 100644 include/sysemu/whpx.h
>  create mode 100644 target/i386/whpx-all.c


Thank you for this contribution – I'll test it.

The patches 2 and 3 fail the test with scripts/checkpatch.pl. Please fix
that in the next iteration (maybe wait a little until there was more
feedback).

Regards,
Stefan