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platform: Remove qemu/virt directory

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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
2020-05-01 12:06:56 +05:30
committed by Anup Patel
parent 4f18c6e550
commit 13717a8e53
7 changed files with 28 additions and 215 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
docs/platform/generic.md
View File

@@ -39,4 +39,6 @@ The *Generic* platform does not have any platform-specific options.
RISC-V Platforms Using Generic Platform
---------------------------------------
To be added later.
* **QEMU RISC-V Virt Machine** (*[qemu_virt.md]*)
[qemu_virt.md]: qemu_virt.md

46
docs/platform/qemu_virt.md
View File

@@ -7,7 +7,7 @@ software development and testing. It is also referred to as
storage, and other types of IO.
To build the platform-specific library and firmware images, provide the
*PLATFORM=qemu/virt* parameter to the top level `make` command.
*PLATFORM=generic* parameter to the top level `make` command.
Platform Options
----------------
@@ -22,13 +22,13 @@ Execution on QEMU RISC-V 64-bit
Build:
```
make PLATFORM=qemu/virt
make PLATFORM=generic
```
Run:
```
qemu-system-riscv64 -M virt -m 256M -nographic \
-kernel build/platform/qemu/virt/firmware/fw_payload.elf
-kernel build/platform/generic/firmware/fw_payload.bin
```
**U-Boot Payload**
@@ -38,19 +38,19 @@ the `qemu-riscv64_smode_defconfig` configuration.
Build:
```
make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
make PLATFORM=generic FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
```
Run:
```
qemu-system-riscv64 -M virt -m 256M -nographic \
-kernel build/platform/qemu/virt/firmware/fw_payload.elf
-kernel build/platform/generic/firmware/fw_payload.elf
```
or
```
qemu-system-riscv64 -M virt -m 256M -nographic \
-kernel build/platform/qemu/virt/firmware/fw_jump.elf \
-device loader,file=<uboot_build_directory>/u-boot.bin,addr=0x80200000
-bios build/platform/generic/firmware/fw_jump.bin \
-kernel <uboot_build_directory>/u-boot.bin
```
**Linux Kernel Payload**
@@ -60,13 +60,13 @@ Note: We assume that the Linux kernel is compiled using
Build:
```
make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<linux_build_directory>/arch/riscv/boot/Image
make PLATFORM=generic FW_PAYLOAD_PATH=<linux_build_directory>/arch/riscv/boot/Image
```
Run:
```
qemu-system-riscv64 -M virt -m 256M -nographic \
-kernel build/platform/qemu/virt/firmware/fw_payload.elf \
-kernel build/platform/generic/firmware/fw_payload.elf \
-drive file=<path_to_linux_rootfs>,format=raw,id=hd0 \
-device virtio-blk-device,drive=hd0 \
-append "root=/dev/vda rw console=ttyS0"
@@ -74,8 +74,8 @@ qemu-system-riscv64 -M virt -m 256M -nographic \
or
```
qemu-system-riscv64 -M virt -m 256M -nographic \
-kernel build/platform/qemu/virt/firmware/fw_jump.elf \
-device loader,file=<linux_build_directory>/arch/riscv/boot/Image,addr=0x80200000 \
-bios build/platform/generic/firmware/fw_jump.bin \
-kernel <linux_build_directory>/arch/riscv/boot/Image \
-drive file=<path_to_linux_rootfs>,format=raw,id=hd0 \
-device virtio-blk-device,drive=hd0 \
-append "root=/dev/vda rw console=ttyS0"
@@ -89,13 +89,13 @@ Execution on QEMU RISC-V 32-bit
Build:
```
make PLATFORM=qemu/virt
make PLATFORM=generic PLATFORM_RISCV_XLEN=32
```
Run:
```
qemu-system-riscv32 -M virt -m 256M -nographic \
-kernel build/platform/qemu/virt/firmware/fw_payload.elf
-kernel build/platform/generic/firmware/fw_payload.bin
```
**U-Boot Payload**
@@ -105,37 +105,35 @@ the `qemu-riscv32_smode_defconfig` configuration.
Build:
```
make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
make PLATFORM=generic PLATFORM_RISCV_XLEN=32 FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin
```
Run:
```
qemu-system-riscv32 -M virt -m 256M -nographic \
-kernel build/platform/qemu/virt/firmware/fw_payload.elf
-kernel build/platform/generic/firmware/fw_payload.elf
```
or
```
qemu-system-riscv32 -M virt -m 256M -nographic \
-kernel build/platform/qemu/virt/firmware/fw_jump.elf \
-device loader,file=<uboot_build_directory>/u-boot.bin,addr=0x80400000
-bios build/platform/generic/firmware/fw_jump.bin \
-kernel <uboot_build_directory>/u-boot.bin
```
**Linux Kernel Payload**
Note: We assume that the Linux kernel is compiled using
*arch/riscv/configs/rv32_defconfig* (kernel 5.1 and newer)
respectively using *arch/riscv/configs/defconfig* plus setting
CONFIG_ARCH_RV32I=y (kernel 5.0 and older).
*arch/riscv/configs/rv32_defconfig*.
Build:
```
make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<linux_build_directory>/arch/riscv/boot/Image
make PLATFORM=generic PLATFORM_RISCV_XLEN=32 FW_PAYLOAD_PATH=<linux_build_directory>/arch/riscv/boot/Image
```
Run:
```
qemu-system-riscv32 -M virt -m 256M -nographic \
-kernel build/platform/qemu/virt/firmware/fw_payload.elf \
-kernel build/platform/generic/firmware/fw_payload.elf \
-drive file=<path_to_linux_rootfs>,format=raw,id=hd0 \
-device virtio-blk-device,drive=hd0 \
-append "root=/dev/vda rw console=ttyS0"
@@ -143,8 +141,8 @@ qemu-system-riscv32 -M virt -m 256M -nographic \
or
```
qemu-system-riscv32 -M virt -m 256M -nographic \
-kernel build/platform/qemu/virt/firmware/fw_jump.elf \
-device loader,file=<linux_build_directory>/arch/riscv/boot/Image,addr=0x80400000 \
-bios build/platform/generic/firmware/fw_jump.bin \
-kernel <linux_build_directory>/arch/riscv/boot/Image \
-drive file=<path_to_linux_rootfs>,format=raw,id=hd0 \
-device virtio-blk-device,drive=hd0 \
-append "root=/dev/vda rw console=ttyS0"