cputlb: Remove cpu->mem_io_vaddr

With the merge of notdirty handling into store_helper,
the last user of cpu->mem_io_vaddr was removed.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg/cputlb.c

@@ -928,7 +928,6 @@ static uint64_t io_readx(CPUArchState *env, CPUIOTLBEntry *iotlbentry,
         cpu_io_recompile(cpu, retaddr);
     }
 
-    cpu->mem_io_vaddr = addr;
     cpu->mem_io_access_type = access_type;
 
     if (mr->global_locking && !qemu_mutex_iothread_locked()) {
@@ -968,7 +967,6 @@ static void io_writex(CPUArchState *env, CPUIOTLBEntry *iotlbentry,
     if (!cpu->can_do_io) {
         cpu_io_recompile(cpu, retaddr);
     }
-    cpu->mem_io_vaddr = addr;
     cpu->mem_io_pc = retaddr;
 
     if (mr->global_locking && !qemu_mutex_iothread_locked()) {

hw/core/cpu.c

@@ -261,7 +261,6 @@ static void cpu_common_reset(CPUState *cpu)
     cpu->interrupt_request = 0;
     cpu->halted = 0;
     cpu->mem_io_pc = 0;
-    cpu->mem_io_vaddr = 0;
     cpu->icount_extra = 0;
     atomic_set(&cpu->icount_decr_ptr->u32, 0);
     cpu->can_do_io = 1;

include/hw/core/cpu.h

@@ -338,7 +338,6 @@ struct qemu_work_item;
  * @next_cpu: Next CPU sharing TB cache.
  * @opaque: User data.
  * @mem_io_pc: Host Program Counter at which the memory was accessed.
- * @mem_io_vaddr: Target virtual address at which the memory was accessed.
  * @kvm_fd: vCPU file descriptor for KVM.
  * @work_mutex: Lock to prevent multiple access to queued_work_*.
  * @queued_work_first: First asynchronous work pending.
@@ -413,7 +412,6 @@ struct CPUState {
      * we store some rarely used information in the CPU context.
      */
     uintptr_t mem_io_pc;
-    vaddr mem_io_vaddr;
     /*
      * This is only needed for the legacy cpu_unassigned_access() hook;
      * when all targets using it have been converted to use