diff options
Diffstat (limited to 'riscv/mmu.cc')
| -rw-r--r-- | riscv/mmu.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/riscv/mmu.cc b/riscv/mmu.cc index 06bc11b..0b28f2f 100644 --- a/riscv/mmu.cc +++ b/riscv/mmu.cc @@ -162,7 +162,7 @@ reg_t mmu_t::walk(reg_t addr, access_type type, reg_t mode) return addr & ((reg_t(2) << (proc->xlen-1))-1); // zero-extend from xlen bool supervisor = mode == PRV_S; - bool pum = get_field(proc->state.mstatus, MSTATUS_PUM); + bool sum = get_field(proc->state.mstatus, MSTATUS_SUM); bool mxr = get_field(proc->state.mstatus, MSTATUS_MXR); // verify bits xlen-1:va_bits-1 are all equal @@ -188,7 +188,7 @@ reg_t mmu_t::walk(reg_t addr, access_type type, reg_t mode) if (PTE_TABLE(pte)) { // next level of page table base = ppn << PGSHIFT; - } else if ((pte & PTE_U) ? supervisor && pum : !supervisor) { + } else if ((pte & PTE_U) ? supervisor && !sum : !supervisor) { break; } else if (!(pte & PTE_V) || (!(pte & PTE_R) && (pte & PTE_W))) { break; |