diff options
Diffstat (limited to 'target-ppc/mmu_helper.c')
| -rw-r--r-- | target-ppc/mmu_helper.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/target-ppc/mmu_helper.c b/target-ppc/mmu_helper.c index f5c4e69a35..a5e387877f 100644 --- a/target-ppc/mmu_helper.c +++ b/target-ppc/mmu_helper.c @@ -1969,6 +1969,11 @@ void ppc_tlb_invalidate_one(CPUPPCState *env, target_ulong addr) /* XXX: this case should be optimized, * giving a mask to tlb_flush_page */ + /* This is broken, some CPUs invalidate a whole congruence + * class on an even smaller subset of bits and some OSes take + * advantage of this. Just blow the whole thing away. + */ +#if 0 tlb_flush_page(cs, addr | (0x0 << 28)); tlb_flush_page(cs, addr | (0x1 << 28)); tlb_flush_page(cs, addr | (0x2 << 28)); @@ -1985,6 +1990,9 @@ void ppc_tlb_invalidate_one(CPUPPCState *env, target_ulong addr) tlb_flush_page(cs, addr | (0xD << 28)); tlb_flush_page(cs, addr | (0xE << 28)); tlb_flush_page(cs, addr | (0xF << 28)); +#else + tlb_flush(cs, 1); +#endif break; #if defined(TARGET_PPC64) case POWERPC_MMU_64B: |