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Documentation/rv-virt: Update information for S mode build

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As kernel mode is not necessary for S mode build, update related
information for the rv-virt board.

Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
This commit is contained in:
Inochi Amaoto
2024-06-12 11:35:48 +08:00
committed by Xiang Xiao
parent 5f1201ede6
commit 894d8a2c52
1 changed files with 19 additions and 4 deletions
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Documentation/platforms/risc-v/qemu-rv/boards/rv-virt/index.rst
+19 -4
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@@ -63,13 +63,16 @@ Finally, to run it, use the following command:
For 32-bit configurations:: For 32-bit configurations::
$ qemu-system-riscv32 -semihosting -M virt,aclint=on -cpu rv32 -smp 8 -bios none -kernel nuttx -nographic $ qemu-system-riscv32 -semihosting -M virt,aclint=on -cpu rv32 -smp <cpu number> -bios none -kernel nuttx -nographic
And, for 64-bit configurations:: And, for 64-bit configurations::
$ qemu-system-riscv64 -semihosting -M virt,aclint=on -cpu rv64 -smp 8 -bios none -kernel nuttx -nographic $ qemu-system-riscv64 -semihosting -M virt,aclint=on -cpu rv64 -smp <cpu number> -bios none -kernel nuttx -nographic
If testing with kernel build, remove the ``-bios none`` option. Kernel build ``-smp`` option can be only used in smp build, and the ``cpu number`` needs
to be set to the same value as ``CONFIG_SMP_NCPUS`` in the build config file.
If testing with S-mode build, remove the ``-bios none`` option. S-mode build
requires SBI to function properly. requires SBI to function properly.
citest citest
@@ -204,7 +207,7 @@ A ROMFS image is generated and linked to the kernel. This requires re-running ``
To run it, use the following command:: To run it, use the following command::
$ qemu-system-riscv32 -M virt,aclint=on -cpu rv32 -smp 8 -kernel nuttx -nographic $ qemu-system-riscv32 -M virt,aclint=on -cpu rv32 -kernel nuttx -nographic
In `nsh`, applications can be run from the `/system/bin` directory:: In `nsh`, applications can be run from the `/system/bin` directory::
@@ -334,6 +337,18 @@ smp64
Similar to the `nsh`_ configuration, but with SMP support Similar to the `nsh`_ configuration, but with SMP support
This configuration is used for 64-bit RISC-V This configuration is used for 64-bit RISC-V
flats
-------
Similar to the `nsh`_ configuration, but running in S-mode.
This configuration is used for 32-bit RISC-V
flats64
-------
Similar to the `nsh`_ configuration, but running in S-mode.
This configuration is used for 64-bit RISC-V
RISC-V GDB Debugging RISC-V GDB Debugging
==================== ====================