Re: [PATCH 0/4] Implements the NetBSD Virtual Machine Monitor accelerator

[Kamil Rytarowski]

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On 07.01.2020 13:53, Kamil Rytarowski wrote:
> Hello QEMU Community!
> 
> Over the past year the NetBSD team has been working hard on a new user-mode 
> API
> for our hypervisor that will be released as part of the upcoming NetBSD 9.0.
> This new API adds user-mode capabilities to create and manage virtual 
> machines,
> configure memory mappings for guest machines, 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 NetBSD Virtual Machine Monitor
> accelerator (NVMM) for QEMU on NetBSD 9.0 and newer hosts.
> 
> When compiling QEMU for x86_64 passing the --enable-nvmm flag will compile the
> accelerator for use. At runtime using the '-accel nvmm' should see a
> significant performance improvement over emulation, much like when using 'hax'
> on NetBSD.
> 
> The documentation for this new API is visible at https://man.netbsd.org under
> the libnvmm(3) and nvmm(4) pages.
> 
> NVMM was designed and implemented by Maxime Villard.
> 
> Thank you for your feedback.
> 
> Maxime Villard (4):
>   Add the NVMM vcpu API
>   Add the NetBSD Virtual Machine Monitor accelerator.
>   Introduce the NVMM impl
>   Add the NVMM acceleration enlightenments
> 
>  accel/stubs/Makefile.objs |    1 +
>  accel/stubs/nvmm-stub.c   |   43 ++
>  configure                 |   36 ++
>  cpus.c                    |   58 ++
>  include/sysemu/hw_accel.h |   14 +
>  include/sysemu/nvmm.h     |   35 ++
>  qemu-options.hx           |    4 +-
>  target/i386/Makefile.objs |    1 +
>  target/i386/helper.c      |    2 +-
>  target/i386/nvmm-all.c    | 1222 +++++++++++++++++++++++++++++++++++++
>  10 files changed, 1413 insertions(+), 3 deletions(-)
>  create mode 100644 accel/stubs/nvmm-stub.c
>  create mode 100644 include/sysemu/nvmm.h
>  create mode 100644 target/i386/nvmm-all.c
> 
> --
> 2.24.0
>

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