Re: [kvmtool PATCH 07/10] riscv: Add Zihintntl extension support

Andrew Jones
2024-03-05T13:50:26Z

On Wed, Feb 14, 2024 at 05:51:38PM +0530, Anup Patel wrote:
> When the Zihintntl extension is available expose it to the guest
> via device tree so that guest can use it.
>
> Signed-off-by: Anup Patel <apatel@ventanamicro.com>
> ---
> riscv/fdt.c | 1 +
> riscv/include/kvm/kvm-config-arch.h | 3 +++
> 2 files changed, 4 insertions(+)
>
> diff --git a/riscv/fdt.c b/riscv/fdt.c
> index 7687624..80e045d 100644
> --- a/riscv/fdt.c
> +++ b/riscv/fdt.c
> @@ -37,6 +37,7 @@ struct isa_ext_info isa_info_arr[] = {
> {"zicond", KVM_RISCV_ISA_EXT_ZICOND},
> {"zicsr", KVM_RISCV_ISA_EXT_ZICSR},
> {"zifencei", KVM_RISCV_ISA_EXT_ZIFENCEI},
> + {"zihintntl", KVM_RISCV_ISA_EXT_ZIHINTNTL},
> {"zihintpause", KVM_RISCV_ISA_EXT_ZIHINTPAUSE},
> {"zihpm", KVM_RISCV_ISA_EXT_ZIHPM},
> {"zknd", KVM_RISCV_ISA_EXT_ZKND},
> diff --git a/riscv/include/kvm/kvm-config-arch.h b/riscv/include/kvm/kvm-config-arch.h
> index f1ac56b..2935c01 100644
> --- a/riscv/include/kvm/kvm-config-arch.h
> +++ b/riscv/include/kvm/kvm-config-arch.h
> @@ -88,6 +88,9 @@ struct kvm_config_arch {
> OPT_BOOLEAN('\0', "disable-zifencei", \
> &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZIFENCEI], \
> "Disable Zifencei Extension"), \
> + OPT_BOOLEAN('\0', "disable-zihintntl", \
> + &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZIHINTNTL], \
> + "Disable Zihintntl Extension"), \
> OPT_BOOLEAN('\0', "disable-zihintpause", \
> &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZIHINTPAUSE],\
> "Disable Zihintpause Extension"), \
> --
> 2.34.1
>

Reviewed-by: Andrew Jones <ajones@ventanamicro.com>