Re: [kvmtool PATCH 03/10] riscv: Add Zabha extension support

From: Andrew Jones <ajones@ventanamicro.com>
To: Anup Patel <apatel@ventanamicro.com>
Cc: Will Deacon <will@kernel.org>,
	julien.thierry.kdev@gmail.com,  maz@kernel.org,
	Paolo Bonzini <pbonzini@redhat.com>,
	 Atish Patra <atishp@atishpatra.org>,
	Anup Patel <anup@brainfault.org>,
	kvm@vger.kernel.org,  kvm-riscv@lists.infradead.org
Subject: Re: [kvmtool PATCH 03/10] riscv: Add Zabha extension support
Date: Sat, 12 Apr 2025 15:46:10 +0200	[thread overview]
Message-ID: <20250412-23464c54bfc11b04c8f4cefd@orel> (raw)
In-Reply-To: <20250326065644.73765-4-apatel@ventanamicro.com>

On Wed, Mar 26, 2025 at 12:26:37PM +0530, Anup Patel wrote:
> When the Zabha 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 c1e688d..ddd0b28 100644
> --- a/riscv/fdt.c
> +++ b/riscv/fdt.c
> @@ -28,6 +28,7 @@ struct isa_ext_info isa_info_arr[] = {
>  	{"svnapot", KVM_RISCV_ISA_EXT_SVNAPOT},
>  	{"svpbmt", KVM_RISCV_ISA_EXT_SVPBMT},
>  	{"svvptc", KVM_RISCV_ISA_EXT_SVVPTC},
> +	{"zabha", KVM_RISCV_ISA_EXT_ZABHA},
>  	{"zacas", KVM_RISCV_ISA_EXT_ZACAS},
>  	{"zawrs", KVM_RISCV_ISA_EXT_ZAWRS},
>  	{"zba", KVM_RISCV_ISA_EXT_ZBA},
> diff --git a/riscv/include/kvm/kvm-config-arch.h b/riscv/include/kvm/kvm-config-arch.h
> index ae01e14..d86158d 100644
> --- a/riscv/include/kvm/kvm-config-arch.h
> +++ b/riscv/include/kvm/kvm-config-arch.h
> @@ -61,6 +61,9 @@ struct kvm_config_arch {
>  	OPT_BOOLEAN('\0', "disable-svvptc",				\
>  		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_SVVPTC],	\
>  		    "Disable Svvptc Extension"),			\
> +	OPT_BOOLEAN('\0', "disable-zabha",				\
> +		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZABHA],	\
> +		    "Disable Zabha Extension"),				\
>  	OPT_BOOLEAN('\0', "disable-zacas",				\
>  		    &(cfg)->ext_disabled[KVM_RISCV_ISA_EXT_ZACAS],	\
>  		    "Disable Zacas Extension"),				\
> -- 
> 2.43.0
>

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

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