From patchwork Thu Feb 6 21:32:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kamil Rytarowski X-Patchwork-Id: 1234639 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=gmx.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; secure) header.d=gmx.net header.i=@gmx.net header.a=rsa-sha256 header.s=badeba3b8450 header.b=EAYH1tHU; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 48DBvB2Ts4z9sRX for ; 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b=EAYH1tHU4F9gX0K2YrgIpK19C5LIk1ompsAtGZYsaC3ksFPEcoG6xUfko86mohbO2 PrstuXihtWGD9G2RK2AG+eUrqPuPOV7MO4LLIH7N4WJ8Nahl29W3kIAFuhtgruqpOj q4dJBJ09jk352Iy02PmacexxZDH114jBLdyXzE+0= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from localhost.localdomain ([89.71.135.231]) by mail.gmx.com (mrgmx105 [212.227.17.174]) with ESMTPSA (Nemesis) id 1N0oBx-1jlKtP04FZ-00wo6F; Thu, 06 Feb 2020 22:33:26 +0100 From: Kamil Rytarowski 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 Subject: [PATCH v4 0/4] Implements the NetBSD Virtual Machine Monitor accelerator Date: Thu, 6 Feb 2020 22:32:28 +0100 Message-Id: <20200206213232.1918-1-n54@gmx.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200206115731.13552-1-n54@gmx.com> References: <20200206115731.13552-1-n54@gmx.com> MIME-Version: 1.0 X-Provags-ID: V03:K1:PzMUPTHQteCIsgCfSCT2s0SKsSIyHh1XF0DKpMFww2AQlhNhaYf oQR+ZOxkMJuxWMV9Ef+3rIMeHF+/YAAqr3ykKQ+8VLQLdNo4PxPLBnchd/IiU5NifuOejGB sO8ttJLw3pPrGoP7nS/KskgcmYdPMAPIq7UntvZ5qszHBF+e83mUw0D/YXC+OSp8zfmxcS8 2GhIwrWdtenG/9TMcCiHg== X-UI-Out-Filterresults: notjunk:1; V03:K0:1EmbGsqM3Ws=:6mskKEy9OkDo/rQwh0yJro MXg6ynnUZaoJDg3crCIh3P32C+Oq7TDTksuSVmS5giqdaLkuk+fuQNosv+kH7pW37DX96NqkJ vfE2skZeiBNyx/ZOsSjgv55a5JIUK/up80Lmdt5RQTFnLkI7XWMp/rX/WfJHpPXdke6m5RnQc zmdJa4Zy5hK1eZQ+TLo/rvvV8jRSW6wUXGtL0Wb8CRYmLqe+/4cG0JYJXsNSV0Gf4hrkxhY7X U0AIrM1EntJN9YRs355jwnXfZ6HFR6FdB1QuS2wThwUYkS5A7E5XBYAMpCHMlbIy23zojY1WM pUDemfOztDjhFp10MlwtixMb9TGYxvgzwSoyWdokDQk+TAt8CqNxhkGXpdBFefxs4KOS4uSSB 8UZk989ijO5kL+99++UY1Y8q2CFR+67k1uALzB/IWaKCQTxPWcSVEK98S+PKHBvouWvp/ZwS8 qMbauyInpftzXOHpjCHtW9f+F7pFR3WPNy5V+NxhJQDjj+DEPvmo7ywiPMIvglQQf5U2osdIW XysbX9BQYUGFIlkuELUwXONHj2ZrnOh5iQso5/BACZE7Pti5cBD8lOT4znRKLZ0Y9agrTD/S9 4vR1DKRXD0ekG+99W8KjgScE+ZopSGMbLtGhGwzbv7uQyxIhKJqO2r9aVG7BhgyT9YwriZE3U eGOxKV3ATevzZ5m1h31I2a6ponKk5VVzSgDFXlBpiRzLDFh/zn79Vbr0EdQQ6MtmlHghF8jQ8 Pxo6ouIJPE7jfGXkBNEkWCpjxctUmR5D43wZ+PACtiLIfhE8O0u8WoA2mEYvZ3fh+Mxf/x1Bh zbcDE2VCX/2R4bCwmDpmYMAEz+bY4b6TIjueKD1rN9FsmLo21VASUSiJWru0tol/czEXZigK/ PVb72kfHytOMwNtKEIkU2EQNQ5WZ5vi6P3gOVmKCPxDntopCaHYkdtpLaZrleig3VLohFqgPH C+j/6hKvgG5/X/3CmDAMULkbbpg0+1/bVDspEh3x8Q3yKDF1eCkG9Ia1GQ/znDV7VwSMi1HBc gn9NTpc0PMN3aXlkGTceRRt+YLtQJtnU0OuMXHWRSZiT3ifmUVCMN89IRxc1jmtc9ckqlCkS0 0IVHVOClhIqc+zNj620M/1kvf5PCX4Zx3AdiYMGMnwKijQKp4/pIslhsL3OPu5cEwvDz/Qpxy UUYsqlyN/CaEpaXnioUcr0n89TaimqvOJht6staGrvKGFnPpH3ThoQHs9XvR7xF0SimrA= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 212.227.17.20 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kamil Rytarowski , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" 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