diff options
| -rw-r--r-- | accel/tcg/cputlb.c | 5 | ||||
| -rw-r--r-- | accel/tcg/softmmu_template.h | 4 | ||||
| -rw-r--r-- | include/exec/cpu-all.h | 3 |
3 files changed, 9 insertions, 3 deletions
diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index 5b1ef14..a23919c 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -694,6 +694,9 @@ void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr, } else { tn.addr_write = address; } + if (prot & PAGE_WRITE_INV) { + tn.addr_write |= TLB_INVALID_MASK; + } } /* Pairs with flag setting in tlb_reset_dirty_range */ @@ -978,7 +981,7 @@ static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr, if (!VICTIM_TLB_HIT(addr_write, addr)) { tlb_fill(ENV_GET_CPU(env), addr, MMU_DATA_STORE, mmu_idx, retaddr); } - tlb_addr = tlbe->addr_write; + tlb_addr = tlbe->addr_write & ~TLB_INVALID_MASK; } /* Check notdirty */ diff --git a/accel/tcg/softmmu_template.h b/accel/tcg/softmmu_template.h index d756329..3fc5144 100644 --- a/accel/tcg/softmmu_template.h +++ b/accel/tcg/softmmu_template.h @@ -285,7 +285,7 @@ void helper_le_st_name(CPUArchState *env, target_ulong addr, DATA_TYPE val, if (!VICTIM_TLB_HIT(addr_write, addr)) { tlb_fill(ENV_GET_CPU(env), addr, MMU_DATA_STORE, mmu_idx, retaddr); } - tlb_addr = env->tlb_table[mmu_idx][index].addr_write; + tlb_addr = env->tlb_table[mmu_idx][index].addr_write & ~TLB_INVALID_MASK; } /* Handle an IO access. */ @@ -361,7 +361,7 @@ void helper_be_st_name(CPUArchState *env, target_ulong addr, DATA_TYPE val, if (!VICTIM_TLB_HIT(addr_write, addr)) { tlb_fill(ENV_GET_CPU(env), addr, MMU_DATA_STORE, mmu_idx, retaddr); } - tlb_addr = env->tlb_table[mmu_idx][index].addr_write; + tlb_addr = env->tlb_table[mmu_idx][index].addr_write & ~TLB_INVALID_MASK; } /* Handle an IO access. */ diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h index 778031c..0b14168 100644 --- a/include/exec/cpu-all.h +++ b/include/exec/cpu-all.h @@ -245,6 +245,9 @@ extern intptr_t qemu_host_page_mask; /* original state of the write flag (used when tracking self-modifying code */ #define PAGE_WRITE_ORG 0x0010 +/* Invalidate the TLB entry immediately, helpful for s390x + * Low-Address-Protection. Used with PAGE_WRITE in tlb_set_page_with_attrs() */ +#define PAGE_WRITE_INV 0x0040 #if defined(CONFIG_BSD) && defined(CONFIG_USER_ONLY) /* FIXME: Code that sets/uses this is broken and needs to go away. */ #define PAGE_RESERVED 0x0020 |