gwj / at91sam9263 · Commits

Commit 435183235567e0d942829bcf0507cbd34fdcf8a7

Authored by bellard
1 parent 59faf6d6

added invlpg emulation 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@280 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 1 changed file with 11 additions and 0 deletions
translate-i386.c
  View file @4351832
@@ -4036,6 +4036,7 @@ void cpu_x86_close(CPUX86State *env) @@ -4036,6 +4036,7 @@ void cpu_x86_close(CPUX86State *env)
4036 4036
4037 /***********************************************************/ 4037 /***********************************************************/
4038 /* x86 mmu */ 4038 /* x86 mmu */
  4039 +/* XXX: add PGE support */
4039 4040
4040 /* called when cr3 or PG bit are modified */ 4041 /* called when cr3 or PG bit are modified */
4041 static int last_pg_state = -1; 4042 static int last_pg_state = -1;
@@ -4091,8 +4092,18 @@ void cpu_x86_init_mmu(CPUX86State *env) @@ -4091,8 +4092,18 @@ void cpu_x86_init_mmu(CPUX86State *env)
4091 cpu_x86_update_cr0(env); 4092 cpu_x86_update_cr0(env);
4092 } 4093 }
4093 4094
  4095 +/* XXX: also flush 4MB pages */
4094 void cpu_x86_flush_tlb(CPUX86State *env, uint32_t addr) 4096 void cpu_x86_flush_tlb(CPUX86State *env, uint32_t addr)
4095 { 4097 {
  4098 + int flags;
  4099 + unsigned long virt_addr;
  4100 +
  4101 + flags = page_get_flags(addr);
  4102 + if (flags & PAGE_VALID) {
  4103 + virt_addr = addr & ~0xfff;
  4104 + munmap((void *)virt_addr, 4096);
  4105 + page_set_flags(virt_addr, virt_addr + 4096, 0);
  4106 + }
4096 } 4107 }
4097 4108
4098 /* return value: 4109 /* return value: