diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 3f144e3c1f..2e954d8dbd 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -7788,8 +7788,17 @@ static int do_futex(CPUState *cpu, bool time64, target_ulong uaddr,
     case FUTEX_WAIT_BITSET:
         val = tswap32(val);
         break;
+    case FUTEX_WAIT_REQUEUE_PI:
+        val = tswap32(val);
+        haddr2 = g2h(cpu, uaddr2);
+        break;
+    case FUTEX_LOCK_PI:
+    case FUTEX_LOCK_PI2:
+        break;
     case FUTEX_WAKE:
     case FUTEX_WAKE_BITSET:
+    case FUTEX_TRYLOCK_PI:
+    case FUTEX_UNLOCK_PI:
         timeout = 0;
         break;
     case FUTEX_FD:
@@ -7797,6 +7806,7 @@ static int do_futex(CPUState *cpu, bool time64, target_ulong uaddr,
         timeout = 0;
         break;
     case FUTEX_CMP_REQUEUE:
+    case FUTEX_CMP_REQUEUE_PI:
         val3 = tswap32(val3);
         /* fall through */
     case FUTEX_REQUEUE:
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 1e3577bfa5..01ee10a88f 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -2699,6 +2699,9 @@ struct target_drm_i915_getparam {
 #define FUTEX_TRYLOCK_PI        8
 #define FUTEX_WAIT_BITSET       9
 #define FUTEX_WAKE_BITSET       10
+#define FUTEX_WAIT_REQUEUE_PI   11
+#define FUTEX_CMP_REQUEUE_PI    12
+#define FUTEX_LOCK_PI2          13
 
 #define FUTEX_PRIVATE_FLAG      128
 #define FUTEX_CLOCK_REALTIME    256