gwj / at91sam9263 · Commits

Commit 777aca2fd3f7edd6329e343f94401afe99919085

Authored by bellard
1 parent 69e5bc90

fixed dirty bit support for 4M pages (L4 Pistachio fix) 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@549 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 1 changed file with 2 additions and 2 deletions
target-i386/helper2.c
  View file @777aca2
... ... @@ -304,7 +304,7 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, uint32_t addr,
304 304 /* if PSE bit is set, then we use a 4MB page */
305 305 if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
306 306 is_dirty = is_write && !(pde & PG_DIRTY_MASK);
307   - if (!(pde & PG_ACCESSED_MASK)) {
  307 + if (!(pde & PG_ACCESSED_MASK) || is_dirty) {
308 308 pde |= PG_ACCESSED_MASK;
309 309 if (is_dirty)
310 310 pde |= PG_DIRTY_MASK;
... ... @@ -363,7 +363,7 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, uint32_t addr,
363 363 prot |= PROT_WRITE;
364 364 }
365 365 }
366   -
  366 +
367 367 do_mapping:
368 368 pte = pte & a20_mask;
369 369  
... ...