From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Corbin Date: Sun, 21 Oct 2018 20:12:02 +0100 Subject: [Buildroot] [PATCH v4 2/3] configs/qemu: add qemu_riscv32_virt_defconfig In-Reply-To: <20181021191203.2148-1-mark.corbin@embecosm.com> References: <20181021191203.2148-1-mark.corbin@embecosm.com> Message-ID: <20181021191203.2148-2-mark.corbin@embecosm.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Add RISC-V 32-bit defconfig for QEMU virt machine. Tested with QEMU 2.12.1 Signed-off-by: Mark Corbin --- Changes v3 -> v4: - set new variable BR2_RISCV_32 in qemu_riscv32_virt_defconfig --- board/qemu/riscv32-virt/linux.config | 23 +++++++++++++++++++++++ board/qemu/riscv32-virt/readme.txt | 7 +++++++ configs/qemu_riscv32_virt_defconfig | 25 +++++++++++++++++++++++++ 3 files changed, 55 insertions(+) create mode 100644 board/qemu/riscv32-virt/linux.config create mode 100644 board/qemu/riscv32-virt/readme.txt create mode 100644 configs/qemu_riscv32_virt_defconfig diff --git a/board/qemu/riscv32-virt/linux.config b/board/qemu/riscv32-virt/linux.config new file mode 100644 index 0000000000..c25583f768 --- /dev/null +++ b/board/qemu/riscv32-virt/linux.config @@ -0,0 +1,23 @@ +CONFIG_ARCH_RV32I=y +CONFIG_SMP=y +CONFIG_NR_CPUS=8 +CONFIG_PCI=y +CONFIG_SYSVIPC=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +# CONFIG_WIRELESS is not set +CONFIG_VIRTIO_BLK=y +CONFIG_NETDEVICES=y +CONFIG_VIRTIO_NET=y +# CONFIG_ETHERNET is not set +# CONFIG_WLAN is not set +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_OF_PLATFORM=y +CONFIG_VIRT_DRIVERS=y +CONFIG_VIRTIO_MMIO=y +CONFIG_EXT2_FS=y +CONFIG_EXT4_FS=y +CONFIG_TMPFS=y diff --git a/board/qemu/riscv32-virt/readme.txt b/board/qemu/riscv32-virt/readme.txt new file mode 100644 index 0000000000..2da99580e5 --- /dev/null +++ b/board/qemu/riscv32-virt/readme.txt @@ -0,0 +1,7 @@ +Run the emulation with: + + qemu-system-riscv32 -M virt -kernel output/images/bbl -append "root=/dev/vda ro console=ttyS0" -drive file=output/images/rootfs.ext2,format=raw,id=hd0 -device virtio-blk-device,drive=hd0 -netdev user,id=net0 -device virtio-net-device,netdev=net0 -nographic + +The login prompt will appear in the terminal that started Qemu. + +Tested with QEMU 2.12.1 diff --git a/configs/qemu_riscv32_virt_defconfig b/configs/qemu_riscv32_virt_defconfig new file mode 100644 index 0000000000..40b4fa16ae --- /dev/null +++ b/configs/qemu_riscv32_virt_defconfig @@ -0,0 +1,25 @@ +# Architecture +BR2_riscv=y +BR2_RISCV_32=y + +# System +BR2_SYSTEM_DHCP="eth0" + +# Filesystem +BR2_TARGET_ROOTFS_EXT2=y +BR2_TARGET_GENERIC_GETTY=y +BR2_TARGET_GENERIC_GETTY_PORT="ttyS0" + +# Linux headers same as kernel, a 4.15 series +BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_15=y + +# Kernel +BR2_LINUX_KERNEL=y +BR2_LINUX_KERNEL_CUSTOM_GIT=y +BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/riscv/riscv-linux.git" +BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="fe92d7905c6ea0ebeabeb725b8040754ede7c220" +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/riscv32-virt/linux.config" + +# Bootloader +BR2_TARGET_RISCV_PK=y -- 2.17.1