1 files changed, 0 insertions, 43 deletions
diff --git a/target/i386/tcg/seg_helper.c b/target/i386/tcg/seg_helper.c
index cf3f051524..2f6cdc8239 100644
--- a/target/i386/tcg/seg_helper.c
+++ b/target/i386/tcg/seg_helper.c
@@ -2416,46 +2416,3 @@ void helper_verw(CPUX86State *env, target_ulong selector1)
     }
     CC_SRC = eflags | CC_Z;
 }
-
-/* check if Port I/O is allowed in TSS */
-static inline void check_io(CPUX86State *env, int addr, int size,
-                            uintptr_t retaddr)
-{
-    int io_offset, val, mask;
-
-    /* TSS must be a valid 32 bit one */
-    if (!(env->tr.flags & DESC_P_MASK) ||
-        ((env->tr.flags >> DESC_TYPE_SHIFT) & 0xf) != 9 ||
-        env->tr.limit < 103) {
-        goto fail;
-    }
-    io_offset = cpu_lduw_kernel_ra(env, env->tr.base + 0x66, retaddr);
-    io_offset += (addr >> 3);
-    /* Note: the check needs two bytes */
-    if ((io_offset + 1) > env->tr.limit) {
-        goto fail;
-    }
-    val = cpu_lduw_kernel_ra(env, env->tr.base + io_offset, retaddr);
-    val >>= (addr & 7);
-    mask = (1 << size) - 1;
-    /* all bits must be zero to allow the I/O */
-    if ((val & mask) != 0) {
-    fail:
-        raise_exception_err_ra(env, EXCP0D_GPF, 0, retaddr);
-    }
-}
-
-void helper_check_iob(CPUX86State *env, uint32_t t0)
-{
-    check_io(env, t0, 1, GETPC());
-}
-
-void helper_check_iow(CPUX86State *env, uint32_t t0)
-{
-    check_io(env, t0, 2, GETPC());
-}
-
-void helper_check_iol(CPUX86State *env, uint32_t t0)
-{
-    check_io(env, t0, 4, GETPC());
-}