diff options
| author | Blue Swirl <blauwirbel@gmail.com> | 2012-03-18 11:31:23 +0000 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2012-03-27 19:46:42 +0000 |
| commit | 1658dd32408c75e850b55ab0ff70d5cc402674d5 (patch) | |
| tree | 9a31adc1e2d84e77f6ff93c2ebbfde4ca3f8cae5 /target-sparc | |
| parent | 8a22565b7c2d1920b02b94e7a8021c65895a3a22 (diff) | |
sparc: pass page aligned addresses to tlb_set_page
Mask incoming page address early so that resolved addresses
are page aligned. Remove further address masking.
Tested-by: Artyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'target-sparc')
| -rw-r--r-- | target-sparc/mmu_helper.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/target-sparc/mmu_helper.c b/target-sparc/mmu_helper.c index 11fb9f5de..cb73c449f 100644 --- a/target-sparc/mmu_helper.c +++ b/target-sparc/mmu_helper.c @@ -150,18 +150,17 @@ static int get_physical_address(CPUSPARCState *env, target_phys_addr_t *physical case 3: /* Reserved */ return (3 << 8) | (4 << 2); case 2: /* L3 PTE */ - page_offset = (address & TARGET_PAGE_MASK) & - (TARGET_PAGE_SIZE - 1); + page_offset = 0; } *page_size = TARGET_PAGE_SIZE; break; case 2: /* L2 PTE */ - page_offset = address & 0x3ffff; + page_offset = address & 0x3f000; *page_size = 0x40000; } break; case 2: /* L1 PTE */ - page_offset = address & 0xffffff; + page_offset = address & 0xfff000; *page_size = 0x1000000; } } @@ -206,11 +205,11 @@ int cpu_sparc_handle_mmu_fault(CPUSPARCState *env, target_ulong address, int rw, target_ulong page_size; int error_code = 0, prot, access_index; + address &= TARGET_PAGE_MASK; error_code = get_physical_address(env, &paddr, &prot, &access_index, address, rw, mmu_idx, &page_size); + vaddr = address; if (error_code == 0) { - vaddr = address & TARGET_PAGE_MASK; - paddr &= TARGET_PAGE_MASK; #ifdef DEBUG_MMU printf("Translate at " TARGET_FMT_lx " -> " TARGET_FMT_plx ", vaddr " TARGET_FMT_lx "\n", address, paddr, vaddr); @@ -230,7 +229,6 @@ int cpu_sparc_handle_mmu_fault(CPUSPARCState *env, target_ulong address, int rw, permissions. If no mapping is available, redirect accesses to neverland. Fake/overridden mappings will be flushed when switching to normal mode. */ - vaddr = address & TARGET_PAGE_MASK; prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; tlb_set_page(env, vaddr, paddr, prot, mmu_idx, TARGET_PAGE_SIZE); return 0; @@ -704,17 +702,16 @@ static int get_physical_address(CPUSPARCState *env, target_phys_addr_t *physical int cpu_sparc_handle_mmu_fault(CPUSPARCState *env, target_ulong address, int rw, int mmu_idx) { - target_ulong virt_addr, vaddr; + target_ulong vaddr; target_phys_addr_t paddr; target_ulong page_size; int error_code = 0, prot, access_index; + address &= TARGET_PAGE_MASK; error_code = get_physical_address(env, &paddr, &prot, &access_index, address, rw, mmu_idx, &page_size); if (error_code == 0) { - virt_addr = address & TARGET_PAGE_MASK; - vaddr = virt_addr + ((address & TARGET_PAGE_MASK) & - (TARGET_PAGE_SIZE - 1)); + vaddr = address; trace_mmu_helper_mmu_fault(address, paddr, mmu_idx, env->tl, env->dmmu.mmu_primary_context, |