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target/riscv: Fixup MSECCFG minimum priv check 

There is nothing in the RISC-V spec that mandates version 1.12 is
required for ePMP and there is currently hardware [1] that implements
ePMP (a draft version though) with the 1.11 priv spec.

1: https://ibex-core.readthedocs.io/en/latest/01_overview/compliance.html

Fixes: a4b2fa4331 ("target/riscv: Introduce privilege version field in the CSR ops.")
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20220629233102.275181-2-alistair.francis@opensource.wdc.com>
This commit is contained in:
Alistair Francis 2022-06-30 09:31:01 +10:00 committed by Alistair Francis
parent 3780e33732
commit b509caceaa
1 changed files with 1 additions and 1 deletions
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target/riscv/csr.c
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@ -3812,7 +3812,7 @@ riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = {
/* Physical Memory Protection */
[CSR_MSECCFG] = { "mseccfg", epmp, read_mseccfg, write_mseccfg,
.min_priv_ver = PRIV_VERSION_1_12_0 },
.min_priv_ver = PRIV_VERSION_1_11_0 },
[CSR_PMPCFG0] = { "pmpcfg0", pmp, read_pmpcfg, write_pmpcfg },
[CSR_PMPCFG1] = { "pmpcfg1", pmp, read_pmpcfg, write_pmpcfg },
[CSR_PMPCFG2] = { "pmpcfg2", pmp, read_pmpcfg, write_pmpcfg },