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[34.92.144.28]) by smtp.gmail.com with ESMTPSA id a12sm6173654pfr.28.2020.05.03.03.21.47 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 03 May 2020 03:21:48 -0700 (PDT) From: Huacai Chen X-Google-Original-From: Huacai Chen To: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Aleksandar Markovic Subject: [PATCH for-5.1 V3 0/7] mips: Add Loongson-3 machine support (with KVM) Date: Sun, 3 May 2020 18:20:14 +0800 Message-Id: <1588501221-1205-1-git-send-email-chenhc@lemote.com> X-Mailer: git-send-email 2.7.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::643; envelope-from=zltjiangshi@gmail.com; helo=mail-pl1-x643.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action 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: Huacai Chen , Huacai Chen , Aleksandar Rikalo , qemu-devel@nongnu.org, Aurelien Jarno Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Loongson-3 CPU family include Loongson-3A R1/R2/R3/R4 and Loongson-3B R1/R2. Loongson-3A R1 is the oldest and its ISA is the smallest, while Loongson-3A R4 is the newest and its ISA is almost the superset of all others. To reduce complexity, in QEMU we just define two CPU types: 1, "Loongson-3A1000" CPU which is corresponding to Loongson-3A R1. It is suitable for TCG because Loongson-3A R1 has fewest ASE. 2, "Loongson-3A4000" CPU which is corresponding to Loongson-3A R4. It is suitable for KVM because Loongson-3A R4 has the VZ ASE. Loongson-3 lacks English documents. I've tried to translated them with translate.google.com, and the machine translated documents (together with their original Chinese versions) are available here. Loongson-3A R1 (Loongson-3A1000) User Manual Part 1: http://ftp.godson.ac.cn/lemote/3A1000_p1.pdf http://ftp.godson.ac.cn/lemote/Loongson3A1000_processor_user_manual_P1.pdf (Chinese Version) User Manual Part 2: http://ftp.godson.ac.cn/lemote/3A1000_p2.pdf http://ftp.godson.ac.cn/lemote/Loongson3A1000_processor_user_manual_P2.pdf (Chinese Version) Loongson-3A R2 (Loongson-3A2000) User Manual Part 1: http://ftp.godson.ac.cn/lemote/3A2000_p1.pdf http://ftp.godson.ac.cn/lemote/Loongson3A2000_user1.pdf (Chinese Version) User Manual Part 2: http://ftp.godson.ac.cn/lemote/3A2000_p2.pdf http://ftp.godson.ac.cn/lemote/Loongson3A2000_user2.pdf (Chinese Version) Loongson-3A R3 (Loongson-3A3000) User Manual Part 1: http://ftp.godson.ac.cn/lemote/3A3000_p1.pdf http://ftp.godson.ac.cn/lemote/Loongson3A3000_3B3000usermanual1.pdf (Chinese Version) User Manual Part 2: http://ftp.godson.ac.cn/lemote/3A3000_p2.pdf http://ftp.godson.ac.cn/lemote/Loongson3A3000_3B3000usermanual2.pdf (Chinese Version) Loongson-3A R4 (Loongson-3A4000) User Manual Part 1: http://ftp.godson.ac.cn/lemote/3A4000_p1.pdf http://ftp.godson.ac.cn/lemote/3A4000user.pdf (Chinese Version) User Manual Part 2: I'm sorry that it is unavailable now. We are preparing to add QEMU's Loongson-3 support. MIPS VZ extension is fully supported in Loongson-3A R4+, so we at first add QEMU/KVM support in this series. And the next series will add QEMU/TCG support (it will emulate Loongson-3A R1). We already have a full functional Linux kernel (based on Linux-5.4.x LTS but not upstream yet) here: https://github.com/chenhuacai/linux How to use QEMU/Loongson-3? 1, Download kernel source from the above URL; 2, Build a kernel with arch/mips/configs/loongson3_{def,hpc}config; 3, Boot a Loongson-3A4000 host with this kernel; 4, Build QEMU-5.0.0 with this patchset; 5, modprobe kvm; 6, Use QEMU with TCG (available in future): qemu-system-mips64el -M loongson3,accel=tcg -cpu Loongson-3A1000 -kernel -append ... Use QEMU with KVM (available at present): qemu-system-mips64el -M loongson3,accel=kvm -cpu Loongson-3A4000 -kernel -append ... The "-cpu" parameter can be omitted here and QEMU will use the correct type for TCG/KVM automatically. V1 -> V2: 1, Add a cover letter; 2, Improve CPU definitions; 3, Remove LS7A-related things (Use GPEX instead); 4, Add a description of how to run QEMU/Loongson-3. V2 -> V3: 1, Fix all possible checkpatch.pl errors and warnings. Huacai Chen(7): configure: Add KVM target support for MIPS64 hw/mips: Implement the kvm_type() hook in MachineClass hw/mips: Add CPU IRQ3 delivery for KVM target/mips: Add Loongson-3 CPU definition target/mips: Add more CP0 register for save/restor hw/mips: Add Loongson-3 machine support (with KVM) MAINTAINERS: Add myself as Loongson-3 maintainer Signed-off-by: Huacai Chen --- MAINTAINERS | 5 + configure | 2 +- default-configs/mips64el-softmmu.mak | 1 + hw/core/Makefile.objs | 2 +- hw/core/null-machine.c | 4 + hw/mips/Kconfig | 10 + hw/mips/Makefile.objs | 3 +- hw/mips/common.c | 31 ++ hw/mips/mips_int.c | 4 +- hw/mips/mips_loongson3.c | 901 +++++++++++++++++++++++++++++++++++ include/hw/mips/mips.h | 3 + target/mips/cpu.h | 28 ++ target/mips/internal.h | 2 + target/mips/kvm.c | 212 +++++++++ target/mips/machine.c | 6 +- target/mips/mips-defs.h | 7 +- target/mips/translate.c | 2 + target/mips/translate_init.inc.c | 86 ++++ 18 files changed, 1300 insertions(+), 9 deletions(-) create mode 100644 hw/mips/common.c create mode 100644 hw/mips/mips_loongson3.c -- 2.7.0