Merge remote-tracking branch 'remotes/kraxel/tags/usb-20170720-pull-request' into...

[qemu.git] / target / i386 / machine.c

diff --git a/target/i386/machine.c b/target/i386/machine.c
index 8c7a822e9f2b30b6d0d2e87f43c60d172ec4f342..eab33725a344653b3624ec23f2a1e303faaad2ec 100644 (file)
--- a/target/i386/machine.c
+++ b/target/i386/machine.c
@@ -142,6 +142,24 @@ typedef struct x86_FPReg_tmp {
     uint16_t tmp_exp;
 } x86_FPReg_tmp;
 
+static void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, floatx80 f)
+{
+    CPU_LDoubleU temp;
+
+    temp.d = f;
+    *pmant = temp.l.lower;
+    *pexp = temp.l.upper;
+}
+
+static floatx80 cpu_set_fp80(uint64_t mant, uint16_t upper)
+{
+    CPU_LDoubleU temp;
+
+    temp.l.upper = upper;
+    temp.l.lower = mant;
+    return temp.d;
+}
+
 static void fpreg_pre_save(void *opaque)
 {
     x86_FPReg_tmp *tmp = opaque;
@@ -262,14 +280,17 @@ static int cpu_post_load(void *opaque, int version_id)
     for(i = 0; i < 8; i++) {
         env->fptags[i] = (env->fptag_vmstate >> i) & 1;
     }
-    update_fp_status(env);
+    if (tcg_enabled()) {
+        target_ulong dr7;
+        update_fp_status(env);
+        update_mxcsr_status(env);
+
+        cpu_breakpoint_remove_all(cs, BP_CPU);
+        cpu_watchpoint_remove_all(cs, BP_CPU);
 
-    cpu_breakpoint_remove_all(cs, BP_CPU);
-    cpu_watchpoint_remove_all(cs, BP_CPU);
-    {
         /* Indicate all breakpoints disabled, as they are, then
            let the helper re-enable them.  */
-        target_ulong dr7 = env->dr[7];
+        dr7 = env->dr[7];
         env->dr[7] = dr7 & ~(DR7_GLOBAL_BP_MASK | DR7_LOCAL_BP_MASK);
         cpu_x86_update_dr7(env, dr7);
     }