From: Anup Patel <anup@brainfault.org>
To: "Clément Léger" <cleger@rivosinc.com>
Cc: Jonathan Corbet <corbet@lwn.net>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Conor Dooley <conor@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Shuah Khan <shuah@kernel.org>,
Atish Patra <atishp@atishpatra.org>,
linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
linux-kselftest@vger.kernel.org
Subject: Re: [PATCH v2 06/12] RISC-V: KVM: Allow Zca, Zcf, Zcd and Zcb extensions for Guest/VM
Date: Thu, 18 Apr 2024 18:50:21 +0530 [thread overview]
Message-ID: <CAAhSdy33=s_J=0HJ1VfbxPVkBgyTZ1rpM3G15R8rJGbnNA_zeg@mail.gmail.com> (raw)
In-Reply-To: <20240418124300.1387978-7-cleger@rivosinc.com>
On Thu, Apr 18, 2024 at 6:14 PM Clément Léger <cleger@rivosinc.com> wrote:
>
> Extend the KVM ISA extension ONE_REG interface to allow KVM user space
> to detect and enable Zca, Zcf, Zcd and Zcb extensions for Guest/VM.
>
> Signed-off-by: Clément Léger <cleger@rivosinc.com>
LGTM.
Reviewed-by: Anup Patel <anup@brainfault.org>
Acked-by: Anup Patel <anup@brainfault.org>
Thanks,
Anup
> ---
> arch/riscv/include/uapi/asm/kvm.h | 4 ++++
> arch/riscv/kvm/vcpu_onereg.c | 8 ++++++++
> 2 files changed, 12 insertions(+)
>
> diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
> index 35a12aa1953e..57db3fea679f 100644
> --- a/arch/riscv/include/uapi/asm/kvm.h
> +++ b/arch/riscv/include/uapi/asm/kvm.h
> @@ -168,6 +168,10 @@ enum KVM_RISCV_ISA_EXT_ID {
> KVM_RISCV_ISA_EXT_ZTSO,
> KVM_RISCV_ISA_EXT_ZACAS,
> KVM_RISCV_ISA_EXT_ZIMOP,
> + KVM_RISCV_ISA_EXT_ZCA,
> + KVM_RISCV_ISA_EXT_ZCB,
> + KVM_RISCV_ISA_EXT_ZCD,
> + KVM_RISCV_ISA_EXT_ZCF,
> KVM_RISCV_ISA_EXT_MAX,
> };
>
> diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c
> index 12436f6f0d20..a2747a6dbdb6 100644
> --- a/arch/riscv/kvm/vcpu_onereg.c
> +++ b/arch/riscv/kvm/vcpu_onereg.c
> @@ -48,6 +48,10 @@ static const unsigned long kvm_isa_ext_arr[] = {
> KVM_ISA_EXT_ARR(ZBKC),
> KVM_ISA_EXT_ARR(ZBKX),
> KVM_ISA_EXT_ARR(ZBS),
> + KVM_ISA_EXT_ARR(ZCA),
> + KVM_ISA_EXT_ARR(ZCB),
> + KVM_ISA_EXT_ARR(ZCD),
> + KVM_ISA_EXT_ARR(ZCF),
> KVM_ISA_EXT_ARR(ZFA),
> KVM_ISA_EXT_ARR(ZFH),
> KVM_ISA_EXT_ARR(ZFHMIN),
> @@ -128,6 +132,10 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext)
> case KVM_RISCV_ISA_EXT_ZBKC:
> case KVM_RISCV_ISA_EXT_ZBKX:
> case KVM_RISCV_ISA_EXT_ZBS:
> + case KVM_RISCV_ISA_EXT_ZCA:
> + case KVM_RISCV_ISA_EXT_ZCB:
> + case KVM_RISCV_ISA_EXT_ZCD:
> + case KVM_RISCV_ISA_EXT_ZCF:
> case KVM_RISCV_ISA_EXT_ZFA:
> case KVM_RISCV_ISA_EXT_ZFH:
> case KVM_RISCV_ISA_EXT_ZFHMIN:
> --
> 2.43.0
>
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next prev parent reply other threads:[~2024-04-18 13:21 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-18 12:42 [PATCH v2 00/12] Add support for a few Zc* extensions as well as Zcmop Clément Léger
2024-04-18 12:42 ` [PATCH v2 01/12] dt-bindings: riscv: add Zca, Zcf, Zcd and Zcb ISA extension description Clément Léger
2024-04-19 15:24 ` Conor Dooley
2024-04-18 12:42 ` [PATCH v2 02/12] riscv: dts: enable Zc* extensions when needed Clément Léger
2024-04-19 15:55 ` Conor Dooley
2024-04-18 12:42 ` [PATCH v2 03/12] dt-bindings: riscv: add Zc* extension rules implied by C extension Clément Léger
2024-04-19 15:49 ` Conor Dooley
2024-04-22 8:53 ` Clément Léger
2024-04-22 11:19 ` Conor Dooley
2024-04-22 11:40 ` Clément Léger
2024-04-18 12:42 ` [PATCH v2 04/12] riscv: add ISA parsing for Zca, Zcf, Zcd and Zcb Clément Léger
2024-04-19 15:51 ` Conor Dooley
2024-04-22 8:53 ` Clément Léger
2024-04-22 9:35 ` Conor Dooley
2024-04-22 11:14 ` Clément Léger
2024-04-22 11:36 ` Conor Dooley
2024-04-22 11:41 ` Clément Léger
2024-04-18 12:42 ` [PATCH v2 05/12] riscv: hwprobe: export Zca, Zcf, Zcd and Zcb ISA extensions Clément Léger
2024-04-18 12:42 ` [PATCH v2 06/12] RISC-V: KVM: Allow Zca, Zcf, Zcd and Zcb extensions for Guest/VM Clément Léger
2024-04-18 13:20 ` Anup Patel [this message]
2024-04-18 12:42 ` [PATCH v2 07/12] KVM: riscv: selftests: Add some Zc* extensions to get-reg-list test Clément Léger
2024-04-18 13:20 ` Anup Patel
2024-04-18 12:42 ` [PATCH v2 08/12] dt-bindings: riscv: add Zcmop ISA extension description Clément Léger
2024-04-19 15:50 ` Conor Dooley
2024-04-18 12:42 ` [PATCH v2 09/12] riscv: add ISA extension parsing for Zcmop Clément Léger
2024-04-18 12:42 ` [PATCH v2 10/12] riscv: hwprobe: export Zcmop ISA extension Clément Léger
2024-04-18 12:42 ` [PATCH v2 11/12] RISC-V: KVM: Allow Zcmop extension for Guest/VM Clément Léger
2024-04-18 13:21 ` Anup Patel
2024-04-18 12:42 ` [PATCH v2 12/12] KVM: riscv: selftests: Add Zcmop extension to get-reg-list test Clément Léger
2024-04-18 13:21 ` Anup Patel
2024-04-18 13:28 ` [PATCH v2 00/12] Add support for a few Zc* extensions as well as Zcmop Anup Patel
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