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target/riscv: Check svukte is not enabled in RV32

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The spec explicitly says svukte doesn't support RV32. So check that it
is not enabled in RV32.

Signed-off-by: Fea.Wang <fea.wang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20241203034932.25185-7-fea.wang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Fea.Wang 2024-12-03 11:49:32 +08:00 • committed by Alistair Francis
parent 093c613cb6
commit 19d476ff13
1 changed files with 5 additions and 0 deletions
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5
target/riscv/tcg/tcg-cpu.c
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@ -652,6 +652,11 @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp)
return;
}
if (mcc->misa_mxl_max == MXL_RV32 && cpu->cfg.ext_svukte) {
error_setg(errp, "svukte is not supported for RV32");
return;
}
/*
* Disable isa extensions based on priv spec after we
* validated and set everything we need.