On Mon, Jun 12, 2023 at 4:41 PM Anup Patel <apatel@xxxxxxxxxxxxxxxx> wrote:
>
> We extend the KVM ISA extension ONE_REG interface to allow KVM
> user space to detect and enable Svnapot extension for Guest/VM.
>
> Signed-off-by: Anup Patel <apatel@xxxxxxxxxxxxxxxx>
> Reviewed-by: Andrew Jones <ajones@xxxxxxxxxxxxxxxx>
Queued this patch for Linux-6.5
Thanks,
Anup
> ---
> arch/riscv/include/uapi/asm/kvm.h | 1 +
> arch/riscv/kvm/vcpu.c | 2 ++
> 2 files changed, 3 insertions(+)
>
> diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
> index 61d7fecc4899..a1ca18408bbd 100644
> --- a/arch/riscv/include/uapi/asm/kvm.h
> +++ b/arch/riscv/include/uapi/asm/kvm.h
> @@ -122,6 +122,7 @@ enum KVM_RISCV_ISA_EXT_ID {
> KVM_RISCV_ISA_EXT_ZICBOZ,
> KVM_RISCV_ISA_EXT_ZBB,
> KVM_RISCV_ISA_EXT_SSAIA,
> + KVM_RISCV_ISA_EXT_SVNAPOT,
> KVM_RISCV_ISA_EXT_MAX,
> };
>
> diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c
> index 2db62c6c0d3e..7b355900f235 100644
> --- a/arch/riscv/kvm/vcpu.c
> +++ b/arch/riscv/kvm/vcpu.c
> @@ -61,6 +61,7 @@ static const unsigned long kvm_isa_ext_arr[] = {
> KVM_ISA_EXT_ARR(SSAIA),
> KVM_ISA_EXT_ARR(SSTC),
> KVM_ISA_EXT_ARR(SVINVAL),
> + KVM_ISA_EXT_ARR(SVNAPOT),
> KVM_ISA_EXT_ARR(SVPBMT),
> KVM_ISA_EXT_ARR(ZBB),
> KVM_ISA_EXT_ARR(ZIHINTPAUSE),
> @@ -102,6 +103,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
> case KVM_RISCV_ISA_EXT_SSAIA:
> case KVM_RISCV_ISA_EXT_SSTC:
> case KVM_RISCV_ISA_EXT_SVINVAL:
> + case KVM_RISCV_ISA_EXT_SVNAPOT:
> case KVM_RISCV_ISA_EXT_ZIHINTPAUSE:
> case KVM_RISCV_ISA_EXT_ZBB:
> return false;
> --
> 2.34.1
>
>
> --
> kvm-riscv mailing list
> kvm-riscv@xxxxxxxxxxxxxxxxxxx
> http://lists.infradead.org/mailman/listinfo/kvm-riscv
