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Diffstat (limited to 'accel/tcg/cputlb.c')
| -rw-r--r-- | accel/tcg/cputlb.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index 95265a01ec..1900936038 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -858,6 +858,16 @@ tb_page_addr_t get_page_addr_code(CPUArchState *env, target_ulong addr) pd = iotlbentry->addr & ~TARGET_PAGE_MASK; mr = iotlb_to_region(cpu, pd, iotlbentry->attrs); if (memory_region_is_unassigned(mr)) { + qemu_mutex_lock_iothread(); + if (memory_region_request_mmio_ptr(mr, addr)) { + qemu_mutex_unlock_iothread(); + /* A MemoryRegion is potentially added so re-run the + * get_page_addr_code. + */ + return get_page_addr_code(env, addr); + } + qemu_mutex_unlock_iothread(); + cpu_unassigned_access(cpu, addr, false, true, 0, 4); /* The CPU's unassigned access hook might have longjumped out * with an exception. If it didn't (or there was no hook) then |