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

From: Kamil Rytarowski <n54@gmx.com>
To: rth@twiddle.net, ehabkost@redhat.com, slp@redhat.com,
	pbonzini@redhat.com, peter.maydell@linaro.org, philmd@redhat.com,
	max@m00nbsd.net, jmcneill@invisible.ca
Cc: qemu-devel@nongnu.org
Subject: Re: [PATCH v4 0/4] Implements the NetBSD Virtual Machine Monitor accelerator
Date: Mon, 2 Mar 2020 18:02:18 +0100	[thread overview]
Message-ID: <48851271-4a15-f207-ba17-335d9c9a7302@gmx.com> (raw)
In-Reply-To: <b26b1c03-cb2b-9c8b-4796-24b3b296a103@gmx.com>

Ping?

On 24.02.2020 16:17, Kamil Rytarowski wrote:
> 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
>>>
>>>
>>
>