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target/riscv: zvbb implies zvkb

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According to RISC-V crypto spec, Zvkb extension is a
subset of the Zvbb extension [1].

1: 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: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240528130349.20193-1-jerry.zhangjian@sifive.com>
[ Changes by AF:
 - Tidy up commit message
 - Rebase
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Jerry Zhang Jian
2024-06-26 22:30:52 +10:00
committed by Alistair Francis
parent 92c82a126e
commit 15b8ddb18a
1 changed files with 4 additions and 0 deletions
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target/riscv/tcg/tcg-cpu.c
+4
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@@ -667,6 +667,10 @@ 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);
}
if ((cpu->cfg.ext_zvbb || cpu->cfg.ext_zvkb || cpu->cfg.ext_zvkg ||
cpu->cfg.ext_zvkned || cpu->cfg.ext_zvknha || cpu->cfg.ext_zvksed ||
cpu->cfg.ext_zvksh) && !cpu->cfg.ext_zve32x) {