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target/riscv: Deny access if access is partially inside the PMP entry

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Access will fail if access is partially inside the PMP entry.
However,only setting ret = false doesn't really mean pmp violation
since pmp_hart_has_privs_default() may return true at the end of
pmp_hart_has_privs().

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230517091519.34439-13-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Weiwei Li 2023-05-17 17:15:19 +08:00 committed by Alistair Francis
parent 1b63f2fee6
commit 89fbbaddfb
1 changed files with 2 additions and 2 deletions
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4
target/riscv/pmp.c
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@ -327,8 +327,8 @@ bool pmp_hart_has_privs(CPURISCVState *env, target_ulong addr,
if ((s + e) == 1) {
qemu_log_mask(LOG_GUEST_ERROR,
"pmp violation - access is partially inside\n");
ret = false;
break;
*allowed_privs = 0;
return false;
}
/* fully inside */