[PATCH 3/4] selftests: kho: Add riscv support

[sashiko-bot at kernel.org]

> Teach the KHO vmtest runner about riscv64: map the target to ARCH
> riscv and describe the QEMU virt machine, the kernel image and its
> console -- a 16550A port probed from the device tree on virt, hence
> the SERIAL_8250{,_CONSOLE} and SERIAL_OF_PLATFORM symbols.  Also
> select CONFIG_SPARSEMEM_MANUAL: the runner requires
> CONFIG_DEFERRED_STRUCT_PAGE_INIT, which depends on SPARSEMEM, while
> riscv falls back to FLATMEM (no ARCH_SPARSEMEM_DEFAULT), so without
> it the test would just be skipped.
> 
> Signed-off-by: Chen Pei <cp0613 at linux.alibaba.com>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261023111612.2134-1-cp0613@linux.alibaba.com?part=3