Re: [kvmtool PATCH 09/10] riscv: Add Zfa extensiona support

Andrew Jones
2024-03-05T13:51:38Z

On Wed, Feb 14, 2024 at 05:51:40PM +0530, Anup Patel wrote:
> When the Zfa 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 005301e..cc8070d 100644
> --- a/riscv/fdt.c
> +++ b/riscv/fdt.c
> @@ -29,6 +29,7 @@ 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},
> + {"zfa", KVM_RISCV_ISA_EXT_ZFA},
> {"zfh", KVM_RISCV_ISA_EXT_ZFH},
> {"zfhmin", KVM_RISCV_ISA_EXT_ZFHMIN},
> {"zicbom", KVM_RISCV_ISA_EXT_ZICBOM},
> diff --git a/riscv/include/kvm/kvm-config-arch.h b/riscv/include/kvm/kvm-config-arch.h
> index 10ca3b8..6415d3d 100644
> --- a/riscv/include/kvm/kvm-config-arch.h
> +++ b/riscv/include/kvm/kvm-config-arch.h
> @@ -64,6 +64,9 @@ struct kvm_config_arch {
> OPT_BOOLEAN('\0', "disable-zbs", \
> &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZBS], \
> "Disable Zbs Extension"), \
> + OPT_BOOLEAN('\0', "disable-zfa", \
> + &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZFA], \
> + "Disable Zfa Extension"), \
> OPT_BOOLEAN('\0', "disable-zfh", \
> &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZFH], \
> "Disable Zfh Extension"), \
> --
> 2.34.1
>

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