diff options
Diffstat (limited to 'target/riscv/pmp.c')
| -rw-r--r-- | target/riscv/pmp.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/target/riscv/pmp.c b/target/riscv/pmp.c index 3540327..72f1372 100644 --- a/target/riscv/pmp.c +++ b/target/riscv/pmp.c @@ -211,11 +211,12 @@ void pmp_update_rule_addr(CPURISCVState *env, uint32_t pmp_index) break; case PMP_AMATCH_TOR: - sa = prev_addr << 2; /* shift up from [xx:0] to [xx+2:2] */ - ea = (this_addr << 2) - 1u; - if (sa > ea) { + if (prev_addr >= this_addr) { sa = ea = 0u; + break; } + sa = prev_addr << 2; /* shift up from [xx:0] to [xx+2:2] */ + ea = (this_addr << 2) - 1u; break; case PMP_AMATCH_NA4: |