Re: [kvmtool PATCH 06/10] riscv: Add Zfh[min] extensions support

Andrew Jones
2024-03-05T13:49:52Z

On Wed, Feb 14, 2024 at 05:51:37PM +0530, Anup Patel wrote:
> When the Zfh[min] extensions are 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 | 2 ++
> riscv/include/kvm/kvm-config-arch.h | 6 ++++++
> 2 files changed, 8 insertions(+)
>
> diff --git a/riscv/fdt.c b/riscv/fdt.c
> index 44058dc..7687624 100644
> --- a/riscv/fdt.c
> +++ b/riscv/fdt.c
> @@ -29,6 +29,8 @@ struct isa_ext_info isa_info_arr[] = {
> {"zbkc", KVM_RISCV_ISA_EXT_ZBKC},
> {"zbkx", KVM_RISCV_ISA_EXT_ZBKX},
> {"zbs", KVM_RISCV_ISA_EXT_ZBS},
> + {"zfh", KVM_RISCV_ISA_EXT_ZFH},
> + {"zfhmin", KVM_RISCV_ISA_EXT_ZFHMIN},
> {"zicbom", KVM_RISCV_ISA_EXT_ZICBOM},
> {"zicboz", KVM_RISCV_ISA_EXT_ZICBOZ},
> {"zicntr", KVM_RISCV_ISA_EXT_ZICNTR},
> diff --git a/riscv/include/kvm/kvm-config-arch.h b/riscv/include/kvm/kvm-config-arch.h
> index ae648ce..f1ac56b 100644
> --- a/riscv/include/kvm/kvm-config-arch.h
> +++ b/riscv/include/kvm/kvm-config-arch.h
> @@ -64,6 +64,12 @@ struct kvm_config_arch {
> OPT_BOOLEAN('\0', "disable-zbs", \
> &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZBS], \
> "Disable Zbs Extension"), \
> + OPT_BOOLEAN('\0', "disable-zfh", \
> + &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZFH], \
> + "Disable Zfh Extension"), \
> + OPT_BOOLEAN('\0', "disable-zfhmin", \
> + &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZFHMIN], \
> + "Disable Zfhmin Extension"), \
> OPT_BOOLEAN('\0', "disable-zicbom", \
> &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZICBOM], \
> "Disable Zicbom Extension"), \
> --
> 2.34.1
>

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