diff options
Diffstat (limited to 'riscv/mmu.cc')
| -rw-r--r-- | riscv/mmu.cc | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/riscv/mmu.cc b/riscv/mmu.cc index e44c027..eb8fed5 100644 --- a/riscv/mmu.cc +++ b/riscv/mmu.cc @@ -117,7 +117,6 @@ void mmu_t::refill_tlb(reg_t vaddr, reg_t paddr, access_type type) reg_t mmu_t::walk(reg_t addr, access_type type, bool supervisor, bool pum) { - fprintf(stderr, "walk 0x%lx\n", addr); int levels, ptidxbits, ptesize; switch (get_field(proc->get_state()->mstatus, MSTATUS_VM)) { @@ -131,7 +130,6 @@ reg_t mmu_t::walk(reg_t addr, access_type type, bool supervisor, bool pum) int va_bits = PGSHIFT + levels * ptidxbits; reg_t mask = (reg_t(1) << (proc->xlen - (va_bits-1))) - 1; reg_t masked_msbs = (addr >> (va_bits-1)) & mask; - fprintf(stderr, "walk masked_msbs=0x%lx, mask=0x%lx\n", masked_msbs, mask); if (masked_msbs != 0 && masked_msbs != mask) return -1; @@ -142,7 +140,6 @@ reg_t mmu_t::walk(reg_t addr, access_type type, bool supervisor, bool pum) // check that physical address of PTE is legal reg_t pte_addr = base + idx * ptesize; - fprintf(stderr, "pte_addr=0x%lx\n", pte_addr); if (!sim->addr_is_mem(pte_addr)) break; @@ -150,16 +147,11 @@ reg_t mmu_t::walk(reg_t addr, access_type type, bool supervisor, bool pum) reg_t pte = ptesize == 4 ? *(uint32_t*)ppte : *(uint64_t*)ppte; reg_t ppn = pte >> PTE_PPN_SHIFT; - fprintf(stderr, "pte=0x%lx\n", pte); - if (PTE_TABLE(pte)) { // next level of page table base = ppn << PGSHIFT; } else if (pum && PTE_CHECK_PERM(pte, 0, type == STORE, type == FETCH)) { - fprintf(stderr, "pum fail\n"); break; } else if (!PTE_CHECK_PERM(pte, supervisor, type == STORE, type == FETCH)) { - fprintf(stderr, "perm(0x%lx, %d, %d, %d)\n", - pte, supervisor, type==STORE, type==FETCH); break; } else { // set referenced and possibly dirty bits. @@ -167,7 +159,6 @@ reg_t mmu_t::walk(reg_t addr, access_type type, bool supervisor, bool pum) // for superpage mappings, make a fake leaf PTE for the TLB's benefit. reg_t vpn = addr >> PGSHIFT; reg_t value = (ppn | (vpn & ((reg_t(1) << ptshift) - 1))) << PGSHIFT; - fprintf(stderr, " -> 0x%lx\n", value); return value; } } |