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Diffstat (limited to 'target-sparc/helper.c')
-rw-r--r--target-sparc/helper.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/target-sparc/helper.c b/target-sparc/helper.c
index 0367200452..ae70595c5f 100644
--- a/target-sparc/helper.c
+++ b/target-sparc/helper.c
@@ -132,13 +132,12 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
int is_user, int is_softmmu)
{
int exception = 0;
- int access_type, access_perms = 0, access_index = 0;
+ int access_perms = 0, access_index = 0;
uint8_t *pde_ptr;
uint32_t pde, virt_addr;
int error_code = 0, is_dirty, prot, ret = 0;
unsigned long paddr, vaddr, page_offset;
- access_type = env->access_type;
if (env->user_mode_only) {
/* user mode only emulation */
ret = -2;
@@ -156,7 +155,6 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
/* SPARC reference MMU table walk: Context table->L1->L2->PTE */
/* Context base + context number */
pde_ptr = phys_ram_base + (env->mmuregs[1] << 4) + (env->mmuregs[2] << 4);
- env->access_type = ACCESS_MMU;
pde = ldl_raw(pde_ptr);
/* Ctx pde */
@@ -219,7 +217,7 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
}
/* update page modified and dirty bits */
- is_dirty = rw && !(pde & PG_MODIFIED_MASK);
+ is_dirty = (rw & 1) && !(pde & PG_MODIFIED_MASK);
if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
pde |= PG_ACCESSED_MASK;
if (is_dirty)
@@ -228,7 +226,7 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
}
/* check access */
- access_index = (rw << 2) | ((access_type == ACCESS_CODE)? 2 : 0) | (is_user? 0 : 1);
+ access_index = ((rw & 1) << 2) | (rw & 2) | (is_user? 0 : 1);
access_perms = (pde & PTE_ACCESS_MASK) >> PTE_ACCESS_SHIFT;
error_code = access_table[access_index][access_perms];
if (error_code)
@@ -249,14 +247,12 @@ int cpu_sparc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
paddr = ((pde & PTE_ADDR_MASK) << 4) + page_offset;
do_mapping:
- env->access_type = access_type;
vaddr = virt_addr + ((address & TARGET_PAGE_MASK) & (TARGET_PAGE_SIZE - 1));
ret = tlb_set_page(env, vaddr, paddr, prot, is_user, is_softmmu);
return ret;
do_fault:
- env->access_type = access_type;
if (env->mmuregs[3]) /* Fault status register */
env->mmuregs[3] = 1; /* overflow (not read before another fault) */
env->mmuregs[3] |= (access_index << 5) | (error_code << 2) | 2;