linux-kernel - Re: [PATCH 5/5] KVM: riscv: selftests: Add bfloat16 extension to get-reg-list test

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Message-Id: <2acb706f-fb20-45ef-a8c8-762e193ca548@lanxincomputing.com>
Date: Fri, 20 Jun 2025 17:58:38 +0800
From: "Nutty Liu" <liujingqi@...xincomputing.com>
To: <zhouquan@...as.ac.cn>, <anup@...infault.org>, <ajones@...tanamicro.com>, 
	<atishp@...shpatra.org>, <paul.walmsley@...ive.com>, 
	<palmer@...belt.com>
Cc: <linux-kernel@...r.kernel.org>, <linux-riscv@...ts.infradead.org>, 
	<kvm@...r.kernel.org>, <kvm-riscv@...ts.infradead.org>
Subject: Re: [PATCH 5/5] KVM: riscv: selftests: Add bfloat16 extension to get-reg-list test

On 6/17/2025 9:10 PM, zhouquan@...as.ac.cn wrote:
> From: Quan Zhou <zhouquan@...as.ac.cn>
>
> The KVM RISC-V allows Zfbfmin/Zvfbfmin/Zvfbfwma extensions for Guest/VM
> so add them to get-reg-list test.
>
> Signed-off-by: Quan Zhou <zhouquan@...as.ac.cn>
> ---
>   tools/testing/selftests/kvm/riscv/get-reg-list.c | 12 ++++++++++++
>   1 file changed, 12 insertions(+)
>
> diff --git a/tools/testing/selftests/kvm/riscv/get-reg-list.c b/tools/testing/selftests/kvm/riscv/get-reg-list.c
> index ebdc34b58bad..e5a07e000b66 100644
> --- a/tools/testing/selftests/kvm/riscv/get-reg-list.c
> +++ b/tools/testing/selftests/kvm/riscv/get-reg-list.c
> @@ -80,6 +80,7 @@ bool filter_reg(__u64 reg)
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZCF:
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZCMOP:
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZFA:
> +	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZFBFMIN:
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZFH:
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZFHMIN:
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZICBOM:
> @@ -104,6 +105,8 @@ bool filter_reg(__u64 reg)
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZTSO:
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVBB:
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVBC:
> +	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVFBFMIN:
> +	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVFBFWMA:
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVFH:
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVFHMIN:
>   	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVKB:
> @@ -535,6 +538,7 @@ static const char *isa_ext_single_id_to_str(__u64 reg_off)
>   		KVM_ISA_EXT_ARR(ZCF),
>   		KVM_ISA_EXT_ARR(ZCMOP),
>   		KVM_ISA_EXT_ARR(ZFA),
> +		KVM_ISA_EXT_ARR(ZFBFMIN),
>   		KVM_ISA_EXT_ARR(ZFH),
>   		KVM_ISA_EXT_ARR(ZFHMIN),
>   		KVM_ISA_EXT_ARR(ZICBOM),
> @@ -559,6 +563,8 @@ static const char *isa_ext_single_id_to_str(__u64 reg_off)
>   		KVM_ISA_EXT_ARR(ZTSO),
>   		KVM_ISA_EXT_ARR(ZVBB),
>   		KVM_ISA_EXT_ARR(ZVBC),
> +		KVM_ISA_EXT_ARR(ZVFBFMIN),
> +		KVM_ISA_EXT_ARR(ZVFBFWMA),
>   		KVM_ISA_EXT_ARR(ZVFH),
>   		KVM_ISA_EXT_ARR(ZVFHMIN),
>   		KVM_ISA_EXT_ARR(ZVKB),
> @@ -1138,6 +1144,7 @@ KVM_ISA_EXT_SIMPLE_CONFIG(zcd, ZCD);
>   KVM_ISA_EXT_SIMPLE_CONFIG(zcf, ZCF);
>   KVM_ISA_EXT_SIMPLE_CONFIG(zcmop, ZCMOP);
>   KVM_ISA_EXT_SIMPLE_CONFIG(zfa, ZFA);
> +KVM_ISA_EXT_SIMPLE_CONFIG(zfbfmin, ZFBFMIN);
>   KVM_ISA_EXT_SIMPLE_CONFIG(zfh, ZFH);
>   KVM_ISA_EXT_SIMPLE_CONFIG(zfhmin, ZFHMIN);
>   KVM_ISA_EXT_SUBLIST_CONFIG(zicbom, ZICBOM);
> @@ -1162,6 +1169,8 @@ KVM_ISA_EXT_SIMPLE_CONFIG(zkt, ZKT);
>   KVM_ISA_EXT_SIMPLE_CONFIG(ztso, ZTSO);
>   KVM_ISA_EXT_SIMPLE_CONFIG(zvbb, ZVBB);
>   KVM_ISA_EXT_SIMPLE_CONFIG(zvbc, ZVBC);
> +KVM_ISA_EXT_SIMPLE_CONFIG(zvfbfmin, ZVFBFMIN);
> +KVM_ISA_EXT_SIMPLE_CONFIG(zvfbfwma, ZVFBFWMA);
>   KVM_ISA_EXT_SIMPLE_CONFIG(zvfh, ZVFH);
>   KVM_ISA_EXT_SIMPLE_CONFIG(zvfhmin, ZVFHMIN);
>   KVM_ISA_EXT_SIMPLE_CONFIG(zvkb, ZVKB);
> @@ -1213,6 +1222,7 @@ struct vcpu_reg_list *vcpu_configs[] = {
>   	&config_zcf,
>   	&config_zcmop,
>   	&config_zfa,
> +	&config_zfbfmin,
>   	&config_zfh,
>   	&config_zfhmin,
>   	&config_zicbom,
> @@ -1237,6 +1247,8 @@ struct vcpu_reg_list *vcpu_configs[] = {
>   	&config_ztso,
>   	&config_zvbb,
>   	&config_zvbc,
> +	&config_zvfbfmin,
> +	&config_zvfbfwma,
>   	&config_zvfh,
>   	&config_zvfhmin,
>   	&config_zvkb,

Reviewed-by: Nutty Liu<liujingqi@...xincomputing.com>

Thanks,
Nutty