[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH v4 0/4] Implements the NetBSD Virtual Machine Monitor acceler
From: |
Kamil Rytarowski |
Subject: |
Re: [PATCH v4 0/4] Implements the NetBSD Virtual Machine Monitor accelerator |
Date: |
Mon, 17 Feb 2020 10:07:00 +0100 |
User-agent: |
Mozilla/5.0 (X11; NetBSD amd64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 |
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
>
>
- Re: [PATCH v3 4/4] Add the NVMM acceleration enlightenments, (continued)