1 files changed, 0 insertions, 42 deletions
diff --git a/target-i386/misc_helper.c b/target-i386/misc_helper.c
index 4f1e30f1fd..4aaf1e4d95 100644
--- a/target-i386/misc_helper.c
+++ b/target-i386/misc_helper.c
@@ -22,48 +22,6 @@
 #include "exec/helper-proto.h"
 #include "exec/cpu_ldst.h"
 
-/* check if Port I/O is allowed in TSS */
-static inline void check_io(CPUX86State *env, int addr, int size)
-{
-    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(env, env->tr.base + 0x66);
-    io_offset += (addr >> 3);
-    /* Note: the check needs two bytes */
-    if ((io_offset + 1) > env->tr.limit) {
-        goto fail;
-    }
-    val = cpu_lduw_kernel(env, env->tr.base + io_offset);
-    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(env, EXCP0D_GPF, 0);
-    }
-}
-
-void helper_check_iob(CPUX86State *env, uint32_t t0)
-{
-    check_io(env, t0, 1);
-}
-
-void helper_check_iow(CPUX86State *env, uint32_t t0)
-{
-    check_io(env, t0, 2);
-}
-
-void helper_check_iol(CPUX86State *env, uint32_t t0)
-{
-    check_io(env, t0, 4);
-}
-
 void helper_outb(uint32_t port, uint32_t data)
 {
     cpu_outb(port, data & 0xff);