Re: [PATCH v3 6/8] RISC-V: KVM: Add ONE_REG interface for AIA CSRs

Andrew Jones
2023-04-03T11:31:23Z

On Mon, Apr 03, 2023 at 03:03:08PM +0530, Anup Patel wrote:
> We implement ONE_REG interface for AIA CSRs as a separate subtype
> under the CSR ONE_REG interface.
>
> Signed-off-by: Anup Patel <apatel@ventanamicro.com>
> ---
> arch/riscv/include/uapi/asm/kvm.h | 8 ++++++++
> arch/riscv/kvm/vcpu.c | 8 ++++++++
> 2 files changed, 16 insertions(+)
>
> diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
> index 182023dc9a51..cbc3e74fa670 100644
> --- a/arch/riscv/include/uapi/asm/kvm.h
> +++ b/arch/riscv/include/uapi/asm/kvm.h
> @@ -79,6 +79,10 @@ struct kvm_riscv_csr {
> unsigned long scounteren;
> };
>
> +/* AIA CSR registers for KVM_GET_ONE_REG and KVM_SET_ONE_REG */
> +struct kvm_riscv_aia_csr {
> +};
> +
> /* TIMER registers for KVM_GET_ONE_REG and KVM_SET_ONE_REG */
> struct kvm_riscv_timer {
> __u64 frequency;
> @@ -107,6 +111,7 @@ enum KVM_RISCV_ISA_EXT_ID {
> KVM_RISCV_ISA_EXT_ZIHINTPAUSE,
> KVM_RISCV_ISA_EXT_ZICBOM,
> KVM_RISCV_ISA_EXT_ZBB,

Looks like this patch is also based on "[PATCH] RISC-V: KVM: Allow Zbb
extension for Guest/VM"

Thanks,
drew