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target/riscv: Add cfg property for Zvkt extension 

Vector crypto spec defines the Zvkt extension that included all of the
instructions of Zvbb & Zvbc extensions and some vector instructions.

Signed-off-by: Max Chou <max.chou@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20231026151828.754279-2-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Max Chou 2023-10-26 23:18:08 +08:00 committed by Alistair Francis
parent c0ce1f2a88
commit 5ddbc83ff2
2 changed files with 6 additions and 0 deletions
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1
target/riscv/cpu_cfg.h
View File

@ -96,6 +96,7 @@ struct RISCVCPUConfig {
bool ext_zvknhb;
bool ext_zvksed;
bool ext_zvksh;
bool ext_zvkt;
bool ext_zmmul;
bool ext_zvfbfmin;
bool ext_zvfbfwma;

5
target/riscv/tcg/tcg-cpu.c
View File

@ -499,6 +499,11 @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp)
return;
}
if (cpu->cfg.ext_zvkt) {
cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvbb), true);
cpu_cfg_ext_auto_update(cpu, CPU_CFG_OFFSET(ext_zvbc), true);
}
/*
* In principle Zve*x would also suffice here, were they supported
* in qemu