gwj / at91sam9263 · Commits

Commit d0f3654f8346ac32953b3ca4bb3dce5e63517ab7

Authored by Edgar E. Iglesias
1 parent 6b2fce90

microblaze: Make writes to MMU_ZPR flush the TLB. 

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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Showing 1 changed file with 7 additions and 0 deletions
target-microblaze/mmu.c
  View file @d0f3654
... ... @@ -220,6 +220,13 @@ void mmu_write(CPUState *env, uint32_t rn, uint32_t v)
220 220 D(qemu_log("%s ram[%d][%d]=%x\n", __func__, rn & 1, i, v));
221 221 break;
222 222 case MMU_R_ZPR:
  223 + /* Changes to the zone protection reg flush the QEMU TLB.
  224 + Fortunately, these are very uncommon. */
  225 + if (v != env->mmu.regs[rn]) {
  226 + tlb_flush(env, 1);
  227 + }
  228 + env->mmu.regs[rn] = v;
  229 + break;
223 230 case MMU_R_PID:
224 231 if (v != env->mmu.regs[rn]) {
225 232 mmu_change_pid(env, v);
... ...