Re: [PATCH v4 0/4] Implements the NetBSD Virtual Machine Monitor accelerator

[Kamil Rytarowski]

Ping?

On 17.02.2020 10:07, Kamil Rytarowski wrote:
> Ping?
>
> On 06.02.2020 22:32, 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.
>>
>> Refrences:
>> https://m00nbsd.net/4e0798b7f2620c965d0dd9d6a7a2f296.html
>>
>> Test plan:
>>
>> 1. Download a NetBSD 9.0 pre-release snapshot:
>> http://nycdn.netbsd.org/pub/NetBSD-daily/netbsd-9/latest/images/NetBSD-9.0_RC1-amd64.iso
>>
>> 2. Install it natively on a not too old x86_64 hardware (Intel or AMD).
>>
>> There is no support for nested virtualization in NVMM.
>>
>> 3. Setup the system.
>>
>>  export PKG_PATH=http://www.ki.nu/pkgsrc/packages/current/NetBSD-9.0_RC1/All
>>  pkg_add git gmake python37 glib2 bison pkgconf pixman
>>
>> Install mozilla-rootcerts and follow post-install instructions.
>>
>>  pkg_add mozilla-rootcerts
>>
>> More information: https://wiki.qemu.org/Hosts/BSD#NetBSD
>>
>> 4. Build qemu
>>
>>  mkdir build
>>  cd build
>>  ../configure --python=python3.7
>>  gmake
>>  gmake check
>>
>> 5. Test
>>
>>  qemu -accel nvmm ...
>>
>>
>> History:
>> v3 -> v4:
>>  - Correct build warning by adding a missing include
>>  - Do not set R8-R16 registers unless TARGET_X86_64
>> v2 -> v3:
>>  - Register nvmm in targetos NetBSD check
>>  - Stop including hw/boards.h
>>  - Rephrase old code comments (remove XXX)
>> v1 -> v2:
>>  - Included the testing plan as requested by Philippe Mathieu-Daude
>>  - Formatting nit fix in qemu-options.hx
>>  - Document NVMM in the accel section of qemu-options.hx
>>
>> 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                 |   37 ++
>>  cpus.c                    |   58 ++
>>  include/sysemu/hw_accel.h |   14 +
>>  include/sysemu/nvmm.h     |   35 ++
>>  qemu-options.hx           |   16 +-
>>  target/i386/Makefile.objs |    1 +
>>  target/i386/helper.c      |    2 +-
>>  target/i386/nvmm-all.c    | 1226 +++++++++++++++++++++++++++++++++++++
>>  10 files changed, 1424 insertions(+), 9 deletions(-)
>>  create mode 100644 accel/stubs/nvmm-stub.c
>>  create mode 100644 include/sysemu/nvmm.h
>>  create mode 100644 target/i386/nvmm-all.c
>>
>> --
>> 2.25.0
>>
>>
>