Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 accel/tcg/cputlb.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index d2e4c4459d..6a7f6bf701 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/cputlb.c
@@ -2339,7 +2339,8 @@ static uint8_t do_ld_1(CPUArchState *env, MMULookupPageData *p, int mmu_idx,
                        MMUAccessType type, uintptr_t ra)
 {
     if (unlikely(p->flags & TLB_MMIO)) {
-        return io_readx(env, p->full, mmu_idx, p->addr, ra, type, MO_UB);
+        QEMU_IOTHREAD_LOCK_GUARD();
+        return do_ld_mmio_beN(env, p->full, 0, p->addr, 1, mmu_idx, type, ra);
     } else {
         return *(uint8_t *)p->haddr;
     }
@@ -2854,7 +2855,8 @@ static void do_st_1(CPUArchState *env, MMULookupPageData *p, uint8_t val,
                     int mmu_idx, uintptr_t ra)
 {
     if (unlikely(p->flags & TLB_MMIO)) {
-        io_writex(env, p->full, mmu_idx, val, p->addr, ra, MO_UB);
+        QEMU_IOTHREAD_LOCK_GUARD();
+        do_st_mmio_leN(env, p->full, val, p->addr, 1, mmu_idx, ra);
     } else if (unlikely(p->flags & TLB_DISCARD_WRITE)) {
         /* nothing */
     } else {
-- 
2.34.1