diff options
Diffstat (limited to 'accel/tcg/cputlb.c')
| -rw-r--r-- | accel/tcg/cputlb.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index ced3dc077e..0fa1643ed3 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -25,6 +25,7 @@ #include "exec/address-spaces.h" #include "exec/cpu_ldst.h" #include "exec/cputlb.h" +#include "exec/tb-hash.h" #include "exec/memory-internal.h" #include "exec/ram_addr.h" #include "tcg/tcg.h" @@ -97,6 +98,23 @@ static void tlb_window_reset(CPUTLBDesc *desc, int64_t ns, desc->window_max_entries = max_entries; } +static void tb_jmp_cache_clear_page(CPUState *cpu, target_ulong page_addr) +{ + unsigned int i, i0 = tb_jmp_cache_hash_page(page_addr); + + for (i = 0; i < TB_JMP_PAGE_SIZE; i++) { + qatomic_set(&cpu->tb_jmp_cache[i0 + i], NULL); + } +} + +static void tb_flush_jmp_cache(CPUState *cpu, target_ulong addr) +{ + /* Discard jump cache entries for any tb which might potentially + overlap the flushed page. */ + tb_jmp_cache_clear_page(cpu, addr - TARGET_PAGE_SIZE); + tb_jmp_cache_clear_page(cpu, addr); +} + /** * tlb_mmu_resize_locked() - perform TLB resize bookkeeping; resize if necessary * @desc: The CPUTLBDesc portion of the TLB |