diff mbox series

target/riscv: zvbb implies zvkb

Message ID 20240516123336.63534-1-jerry.zhangjian@sifive.com
State New
Headers show
Series target/riscv: zvbb implies zvkb | expand

Commit Message

Jerry Zhang Jian May 16, 2024, 12:33 p.m. UTC
- According to RISC-V crypto spec, Zvkb extension is a proper subset of the Zvbb extension.

- Reference: https://github.com/riscv/riscv-crypto/blob/1769c2609bf4535632e0c0fd715778f212bb272e/doc/vector/riscv-crypto-vector-zvkb.adoc?plain=1#L10

Signed-off-by: Jerry Zhang Jian <jerry.zhangjian@sifive.com>
---
 target/riscv/tcg/tcg-cpu.c | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Frank Chang May 17, 2024, 1:54 a.m. UTC | #1
Reviewed-by: Frank Chang <frank.chang@sifive.com>

On Thu, May 16, 2024 at 8:34 PM Jerry Zhang Jian <jerry.zhangjian@sifive.com>
wrote:

> - According to RISC-V crypto spec, Zvkb extension is a proper subset of
> the Zvbb extension.
>
> - Reference:
> https://github.com/riscv/riscv-crypto/blob/1769c2609bf4535632e0c0fd715778f212bb272e/doc/vector/riscv-crypto-vector-zvkb.adoc?plain=1#L10
>
> Signed-off-by: Jerry Zhang Jian <jerry.zhangjian@sifive.com>
> ---
>  target/riscv/tcg/tcg-cpu.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
> index 40054a391a..f1a1306ab2 100644
> --- a/target/riscv/tcg/tcg-cpu.c
> +++ b/target/riscv/tcg/tcg-cpu.c
> @@ -658,6 +658,10 @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu,
> Error **errp)
>          cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvbc), true);
>      }
>
> +    if (cpu->cfg.ext_zvbb) {
> +        cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvkb), true);
> +    }
> +
>      /*
>       * In principle Zve*x would also suffice here, were they supported
>       * in qemu
> --
> 2.42.0
>
>
Alistair Francis May 27, 2024, 5:08 a.m. UTC | #2
On Thu, May 16, 2024 at 10:35 PM Jerry Zhang Jian
<jerry.zhangjian@sifive.com> wrote:
>
> - According to RISC-V crypto spec, Zvkb extension is a proper subset of the Zvbb extension.
>
> - Reference: https://github.com/riscv/riscv-crypto/blob/1769c2609bf4535632e0c0fd715778f212bb272e/doc/vector/riscv-crypto-vector-zvkb.adoc?plain=1#L10
>
> Signed-off-by: Jerry Zhang Jian <jerry.zhangjian@sifive.com>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  target/riscv/tcg/tcg-cpu.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
> index 40054a391a..f1a1306ab2 100644
> --- a/target/riscv/tcg/tcg-cpu.c
> +++ b/target/riscv/tcg/tcg-cpu.c
> @@ -658,6 +658,10 @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp)
>          cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvbc), true);
>      }
>
> +    if (cpu->cfg.ext_zvbb) {
> +        cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvkb), true);
> +    }
> +
>      /*
>       * In principle Zve*x would also suffice here, were they supported
>       * in qemu
> --
> 2.42.0
>
>
Alistair Francis May 27, 2024, 5:13 a.m. UTC | #3
On Thu, May 16, 2024 at 10:35 PM Jerry Zhang Jian
<jerry.zhangjian@sifive.com> wrote:
>
> - According to RISC-V crypto spec, Zvkb extension is a proper subset of the Zvbb extension.
>
> - Reference: https://github.com/riscv/riscv-crypto/blob/1769c2609bf4535632e0c0fd715778f212bb272e/doc/vector/riscv-crypto-vector-zvkb.adoc?plain=1#L10
>
> Signed-off-by: Jerry Zhang Jian <jerry.zhangjian@sifive.com>

Do you mind rebasing on
https://github.com/alistair23/qemu/tree/riscv-to-apply.next?

Alistair

> ---
>  target/riscv/tcg/tcg-cpu.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
> index 40054a391a..f1a1306ab2 100644
> --- a/target/riscv/tcg/tcg-cpu.c
> +++ b/target/riscv/tcg/tcg-cpu.c
> @@ -658,6 +658,10 @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp)
>          cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvbc), true);
>      }
>
> +    if (cpu->cfg.ext_zvbb) {
> +        cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvkb), true);
> +    }
> +
>      /*
>       * In principle Zve*x would also suffice here, were they supported
>       * in qemu
> --
> 2.42.0
>
>
Jerry Zhang Jian May 28, 2024, 12:12 p.m. UTC | #4
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Jerry Zhang Jian May 28, 2024, 12:21 p.m. UTC | #5
Sorry, I had the bad mail client setting. Please ignore the previous email,
and I will resubmit the patch.

--
Jerry

Jerry ZJ <jerry.zhangjian@sifive.com> 於 2024年5月28日 週二 下午8:12寫道:

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diff mbox series

Patch

diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
index 40054a391a..f1a1306ab2 100644
--- a/target/riscv/tcg/tcg-cpu.c
+++ b/target/riscv/tcg/tcg-cpu.c
@@ -658,6 +658,10 @@  void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp)
         cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvbc), true);
     }
 
+    if (cpu->cfg.ext_zvbb) {
+        cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvkb), true);
+    }
+
     /*
      * In principle Zve*x would also suffice here, were they supported
      * in qemu