mirror of
https://github.com/Fishwaldo/opensbi.git
synced 2025-03-15 19:31:32 +00:00
platform: Remove qemu/virt directory
The OpenSBI generic platform works perfectly fine on the QEMU virt machine so let's remove dedicated QEMU virt machine platform from OpenSBI. All QEMU virt machine related documentation in OpenSBI will now suggest using OpenSBI generic platform. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Anup Patel
Anup Patel
parent
4f18c6e550
commit
13717a8e53
7 changed files with 28 additions and 215 deletions
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@ -115,7 +115,7 @@ line, the platform-specific static library *libplatsbi.a* and firmware examples
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are built for the platform *<platform_subdir>* present in the directory
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*platform* in the OpenSBI top directory. For example, to compile the platform
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library and the firmware examples for the QEMU RISC-V *virt* machine,
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*<platform_subdir>* should be *qemu/virt*.
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*<platform_subdir>* should be *generic*.
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To build *libsbi.a*, *libplatsbi.a* and the firmware for one of the supported
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platforms, run:
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@ -39,4 +39,6 @@ The *Generic* platform does not have any platform-specific options.
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RISC-V Platforms Using Generic Platform
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---------------------------------------
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To be added later.
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* **QEMU RISC-V Virt Machine** (*[qemu_virt.md]*)
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[qemu_virt.md]: qemu_virt.md
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@ -7,7 +7,7 @@ software development and testing. It is also referred to as
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storage, and other types of IO.
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To build the platform-specific library and firmware images, provide the
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*PLATFORM=qemu/virt* parameter to the top level `make` command.
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*PLATFORM=generic* parameter to the top level `make` command.
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Platform Options
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----------------
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@ -22,13 +22,13 @@ Execution on QEMU RISC-V 64-bit
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Build:
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```
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make PLATFORM=qemu/virt
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make PLATFORM=generic
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```
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Run:
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```
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qemu-system-riscv64 -M virt -m 256M -nographic \
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-kernel build/platform/qemu/virt/firmware/fw_payload.elf
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-kernel build/platform/generic/firmware/fw_payload.bin
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```
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**U-Boot Payload**
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@ -38,19 +38,19 @@ the `qemu-riscv64_smode_defconfig` configuration.
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Build:
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```
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make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
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make PLATFORM=generic FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
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```
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Run:
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```
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qemu-system-riscv64 -M virt -m 256M -nographic \
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-kernel build/platform/qemu/virt/firmware/fw_payload.elf
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-kernel build/platform/generic/firmware/fw_payload.elf
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```
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or
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```
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qemu-system-riscv64 -M virt -m 256M -nographic \
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-kernel build/platform/qemu/virt/firmware/fw_jump.elf \
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-device loader,file=<uboot_build_directory>/u-boot.bin,addr=0x80200000
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-bios build/platform/generic/firmware/fw_jump.bin \
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-kernel <uboot_build_directory>/u-boot.bin
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```
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**Linux Kernel Payload**
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@ -60,13 +60,13 @@ Note: We assume that the Linux kernel is compiled using
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Build:
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```
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make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<linux_build_directory>/arch/riscv/boot/Image
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make PLATFORM=generic FW_PAYLOAD_PATH=<linux_build_directory>/arch/riscv/boot/Image
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```
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Run:
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```
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qemu-system-riscv64 -M virt -m 256M -nographic \
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-kernel build/platform/qemu/virt/firmware/fw_payload.elf \
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-kernel build/platform/generic/firmware/fw_payload.elf \
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-drive file=<path_to_linux_rootfs>,format=raw,id=hd0 \
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-device virtio-blk-device,drive=hd0 \
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-append "root=/dev/vda rw console=ttyS0"
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@ -74,8 +74,8 @@ qemu-system-riscv64 -M virt -m 256M -nographic \
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or
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```
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qemu-system-riscv64 -M virt -m 256M -nographic \
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-kernel build/platform/qemu/virt/firmware/fw_jump.elf \
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-device loader,file=<linux_build_directory>/arch/riscv/boot/Image,addr=0x80200000 \
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-bios build/platform/generic/firmware/fw_jump.bin \
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-kernel <linux_build_directory>/arch/riscv/boot/Image \
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-drive file=<path_to_linux_rootfs>,format=raw,id=hd0 \
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-device virtio-blk-device,drive=hd0 \
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-append "root=/dev/vda rw console=ttyS0"
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@ -89,13 +89,13 @@ Execution on QEMU RISC-V 32-bit
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Build:
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```
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make PLATFORM=qemu/virt
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make PLATFORM=generic PLATFORM_RISCV_XLEN=32
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```
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Run:
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```
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qemu-system-riscv32 -M virt -m 256M -nographic \
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-kernel build/platform/qemu/virt/firmware/fw_payload.elf
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-kernel build/platform/generic/firmware/fw_payload.bin
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```
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**U-Boot Payload**
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@ -105,37 +105,35 @@ the `qemu-riscv32_smode_defconfig` configuration.
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Build:
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```
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make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
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make PLATFORM=generic PLATFORM_RISCV_XLEN=32 FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
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```
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Run:
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```
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qemu-system-riscv32 -M virt -m 256M -nographic \
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-kernel build/platform/qemu/virt/firmware/fw_payload.elf
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-kernel build/platform/generic/firmware/fw_payload.elf
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```
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or
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```
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qemu-system-riscv32 -M virt -m 256M -nographic \
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-kernel build/platform/qemu/virt/firmware/fw_jump.elf \
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-device loader,file=<uboot_build_directory>/u-boot.bin,addr=0x80400000
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-bios build/platform/generic/firmware/fw_jump.bin \
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-kernel <uboot_build_directory>/u-boot.bin
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```
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**Linux Kernel Payload**
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Note: We assume that the Linux kernel is compiled using
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*arch/riscv/configs/rv32_defconfig* (kernel 5.1 and newer)
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respectively using *arch/riscv/configs/defconfig* plus setting
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CONFIG_ARCH_RV32I=y (kernel 5.0 and older).
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*arch/riscv/configs/rv32_defconfig*.
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Build:
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```
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make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<linux_build_directory>/arch/riscv/boot/Image
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make PLATFORM=generic PLATFORM_RISCV_XLEN=32 FW_PAYLOAD_PATH=<linux_build_directory>/arch/riscv/boot/Image
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```
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Run:
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```
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qemu-system-riscv32 -M virt -m 256M -nographic \
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-kernel build/platform/qemu/virt/firmware/fw_payload.elf \
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-kernel build/platform/generic/firmware/fw_payload.elf \
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-drive file=<path_to_linux_rootfs>,format=raw,id=hd0 \
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-device virtio-blk-device,drive=hd0 \
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-append "root=/dev/vda rw console=ttyS0"
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@ -143,8 +141,8 @@ qemu-system-riscv32 -M virt -m 256M -nographic \
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or
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```
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qemu-system-riscv32 -M virt -m 256M -nographic \
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-kernel build/platform/qemu/virt/firmware/fw_jump.elf \
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-device loader,file=<linux_build_directory>/arch/riscv/boot/Image,addr=0x80400000 \
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-bios build/platform/generic/firmware/fw_jump.bin \
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-kernel <linux_build_directory>/arch/riscv/boot/Image \
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-drive file=<path_to_linux_rootfs>,format=raw,id=hd0 \
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-device virtio-blk-device,drive=hd0 \
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-append "root=/dev/vda rw console=ttyS0"
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@ -1,40 +0,0 @@
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#
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# Copyright (c) 2019 Western Digital Corporation or its affiliates.
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#
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# Authors:
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# Anup Patel <anup.patel@wdc.com>
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#
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# Compiler flags
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platform-cppflags-y =
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platform-cflags-y =
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platform-asflags-y =
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platform-ldflags-y =
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# Command for platform specific "make run"
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platform-runcmd = qemu-system-riscv$(PLATFORM_RISCV_XLEN) -M virt -m 256M \
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-nographic -kernel $(build_dir)/platform/qemu/virt/firmware/fw_payload.elf
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# Blobs to build
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FW_TEXT_START=0x80000000
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FW_DYNAMIC=y
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FW_JUMP=y
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ifeq ($(PLATFORM_RISCV_XLEN), 32)
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# This needs to be 4MB aligned for 32-bit system
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FW_JUMP_ADDR=0x80400000
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else
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# This needs to be 2MB aligned for 64-bit system
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FW_JUMP_ADDR=0x80200000
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endif
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FW_JUMP_FDT_ADDR=0x82200000
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FW_PAYLOAD=y
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ifeq ($(PLATFORM_RISCV_XLEN), 32)
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# This needs to be 4MB aligned for 32-bit system
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FW_PAYLOAD_OFFSET=0x400000
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else
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# This needs to be 2MB aligned for 64-bit system
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FW_PAYLOAD_OFFSET=0x200000
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endif
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FW_PAYLOAD_FDT_ADDR=0x82200000
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@ -1,10 +0,0 @@
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#
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# Copyright (c) 2019 Western Digital Corporation or its affiliates.
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#
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# Authors:
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# Anup Patel <anup.patel@wdc.com>
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#
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platform-objs-y += platform.o
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@ -1,135 +0,0 @@
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/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2019 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Anup Patel <anup.patel@wdc.com>
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* Nick Kossifidis <mick@ics.forth.gr>
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*/
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#include <sbi/riscv_asm.h>
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#include <sbi/riscv_encoding.h>
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#include <sbi/riscv_io.h>
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#include <sbi/sbi_const.h>
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#include <sbi/sbi_hart.h>
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#include <sbi/sbi_platform.h>
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#include <sbi_utils/fdt/fdt_fixup.h>
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#include <sbi_utils/irqchip/plic.h>
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#include <sbi_utils/serial/uart8250.h>
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#include <sbi_utils/sys/clint.h>
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#include <sbi_utils/sys/sifive_test.h>
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/* clang-format off */
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#define VIRT_HART_COUNT 8
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#define VIRT_TEST_ADDR 0x100000
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#define VIRT_CLINT_ADDR 0x2000000
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#define VIRT_PLIC_ADDR 0xc000000
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#define VIRT_PLIC_NUM_SOURCES 127
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#define VIRT_PLIC_NUM_PRIORITIES 7
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#define VIRT_UART16550_ADDR 0x10000000
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#define VIRT_UART_BAUDRATE 115200
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#define VIRT_UART_SHIFTREG_ADDR 1843200
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/* clang-format on */
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static int virt_early_init(bool cold_boot)
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{
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if (!cold_boot)
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return 0;
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return sifive_test_init(VIRT_TEST_ADDR);
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}
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static int virt_final_init(bool cold_boot)
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{
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void *fdt;
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if (!cold_boot)
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return 0;
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fdt = sbi_scratch_thishart_arg1_ptr();
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fdt_fixups(fdt);
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return 0;
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}
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static int virt_console_init(void)
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{
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return uart8250_init(VIRT_UART16550_ADDR, VIRT_UART_SHIFTREG_ADDR,
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VIRT_UART_BAUDRATE, 0, 1);
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}
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static int virt_irqchip_init(bool cold_boot)
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{
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int rc;
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u32 hartid = current_hartid();
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if (cold_boot) {
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rc = plic_cold_irqchip_init(
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VIRT_PLIC_ADDR, VIRT_PLIC_NUM_SOURCES, VIRT_HART_COUNT);
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if (rc)
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return rc;
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}
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return plic_warm_irqchip_init(hartid, (2 * hartid), (2 * hartid + 1));
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}
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static int virt_ipi_init(bool cold_boot)
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{
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int rc;
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if (cold_boot) {
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rc = clint_cold_ipi_init(VIRT_CLINT_ADDR, VIRT_HART_COUNT);
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if (rc)
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return rc;
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}
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return clint_warm_ipi_init();
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}
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static int virt_timer_init(bool cold_boot)
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{
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int rc;
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if (cold_boot) {
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rc = clint_cold_timer_init(VIRT_CLINT_ADDR,
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VIRT_HART_COUNT, TRUE);
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if (rc)
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return rc;
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}
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return clint_warm_timer_init();
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}
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const struct sbi_platform_operations platform_ops = {
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.early_init = virt_early_init,
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.final_init = virt_final_init,
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.console_putc = uart8250_putc,
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.console_getc = uart8250_getc,
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.console_init = virt_console_init,
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.irqchip_init = virt_irqchip_init,
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.ipi_send = clint_ipi_send,
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.ipi_clear = clint_ipi_clear,
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.ipi_init = virt_ipi_init,
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.timer_value = clint_timer_value,
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.timer_event_stop = clint_timer_event_stop,
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.timer_event_start = clint_timer_event_start,
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.timer_init = virt_timer_init,
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.system_reset = sifive_test_system_reset,
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};
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const struct sbi_platform platform = {
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.opensbi_version = OPENSBI_VERSION,
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.platform_version = SBI_PLATFORM_VERSION(0x0, 0x01),
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.name = "QEMU Virt Machine",
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.features = SBI_PLATFORM_DEFAULT_FEATURES,
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.hart_count = VIRT_HART_COUNT,
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.hart_stack_size = SBI_PLATFORM_DEFAULT_HART_STACK_SIZE,
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.platform_ops_addr = (unsigned long)&platform_ops
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};
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@ -95,14 +95,12 @@ build_opensbi() {
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case "${BUILD_RISCV_XLEN}" in
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32)
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# Setup 32-bit platform list
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BUILD_PLATFORM_SUBDIR=("qemu/virt")
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BUILD_PLATFORM_SUBDIR+=("sifive/fu540")
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BUILD_PLATFORM_SUBDIR=("sifive/fu540")
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BUILD_PLATFORM_SUBDIR+=("generic")
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;;
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64)
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# Setup 64-bit platform list
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BUILD_PLATFORM_SUBDIR=("qemu/virt")
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BUILD_PLATFORM_SUBDIR+=("sifive/fu540")
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BUILD_PLATFORM_SUBDIR=("sifive/fu540")
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BUILD_PLATFORM_SUBDIR+=("nuclei/ux600")
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BUILD_PLATFORM_SUBDIR+=("kendryte/k210")
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BUILD_PLATFORM_SUBDIR+=("fpga/ariane")
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