Re: [PATCH v2 2/6] RISC-V: KVM: Provide UAPI for Zicbop block size

[Nutty.Liu]

On 8/8/2025 6:18 PM, zhouquan@xxxxxxxxxxx wrote:
> From: Quan Zhou <zhouquan@xxxxxxxxxxx>
>
> We're about to allow guests to use the Zicbop extension.
> KVM userspace needs to know the cache block size in order to
> properly advertise it to the guest. Provide a virtual config
> register for userspace to get it with the GET_ONE_REG API, but
> setting it cannot be supported, so disallow SET_ONE_REG.
>
> Signed-off-by: Quan Zhou <zhouquan@xxxxxxxxxxx>
> ---
>   arch/riscv/include/uapi/asm/kvm.h |  1 +
>   arch/riscv/kvm/vcpu_onereg.c      | 14 ++++++++++++++
>   2 files changed, 15 insertions(+)
Reviewed-by: Nutty Liu <nutty.liu@xxxxxxxxxxx>

Thanks,
Nutty