These changes are the raw update to qemu-2.6.

[kvmfornfv.git] / qemu / target-i386 / mem_helper.c

diff --git a/qemu/target-i386/mem_helper.c b/qemu/target-i386/mem_helper.c
index 1aec8a5..85e7516 100644 (file)
--- a/qemu/target-i386/mem_helper.c
+++ b/qemu/target-i386/mem_helper.c
@@ -17,37 +17,58 @@
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "qemu/osdep.h"
 #include "cpu.h"
 #include "exec/helper-proto.h"
 #include "exec/cpu_ldst.h"
 
 /* broken thread support */
 
-static spinlock_t global_cpu_lock = SPIN_LOCK_UNLOCKED;
+#if defined(CONFIG_USER_ONLY)
+QemuMutex global_cpu_lock;
 
 void helper_lock(void)
 {
-    spin_lock(&global_cpu_lock);
+    qemu_mutex_lock(&global_cpu_lock);
 }
 
 void helper_unlock(void)
 {
-    spin_unlock(&global_cpu_lock);
+    qemu_mutex_unlock(&global_cpu_lock);
 }
 
+void helper_lock_init(void)
+{
+    qemu_mutex_init(&global_cpu_lock);
+}
+#else
+void helper_lock(void)
+{
+}
+
+void helper_unlock(void)
+{
+}
+
+void helper_lock_init(void)
+{
+}
+#endif
+
 void helper_cmpxchg8b(CPUX86State *env, target_ulong a0)
 {
     uint64_t d;
     int eflags;
 
     eflags = cpu_cc_compute_all(env, CC_OP);
-    d = cpu_ldq_data(env, a0);
+    d = cpu_ldq_data_ra(env, a0, GETPC());
     if (d == (((uint64_t)env->regs[R_EDX] << 32) | (uint32_t)env->regs[R_EAX])) {
-        cpu_stq_data(env, a0, ((uint64_t)env->regs[R_ECX] << 32) | (uint32_t)env->regs[R_EBX]);
+        cpu_stq_data_ra(env, a0, ((uint64_t)env->regs[R_ECX] << 32)
+                                  | (uint32_t)env->regs[R_EBX], GETPC());
         eflags |= CC_Z;
     } else {
         /* always do the store */
-        cpu_stq_data(env, a0, d);
+        cpu_stq_data_ra(env, a0, d, GETPC());
         env->regs[R_EDX] = (uint32_t)(d >> 32);
         env->regs[R_EAX] = (uint32_t)d;
         eflags &= ~CC_Z;
@@ -62,19 +83,19 @@ void helper_cmpxchg16b(CPUX86State *env, target_ulong a0)
     int eflags;
 
     if ((a0 & 0xf) != 0) {
-        raise_exception(env, EXCP0D_GPF);
+        raise_exception_ra(env, EXCP0D_GPF, GETPC());
     }
     eflags = cpu_cc_compute_all(env, CC_OP);
-    d0 = cpu_ldq_data(env, a0);
-    d1 = cpu_ldq_data(env, a0 + 8);
+    d0 = cpu_ldq_data_ra(env, a0, GETPC());
+    d1 = cpu_ldq_data_ra(env, a0 + 8, GETPC());
     if (d0 == env->regs[R_EAX] && d1 == env->regs[R_EDX]) {
-        cpu_stq_data(env, a0, env->regs[R_EBX]);
-        cpu_stq_data(env, a0 + 8, env->regs[R_ECX]);
+        cpu_stq_data_ra(env, a0, env->regs[R_EBX], GETPC());
+        cpu_stq_data_ra(env, a0 + 8, env->regs[R_ECX], GETPC());
         eflags |= CC_Z;
     } else {
         /* always do the store */
-        cpu_stq_data(env, a0, d0);
-        cpu_stq_data(env, a0 + 8, d1);
+        cpu_stq_data_ra(env, a0, d0, GETPC());
+        cpu_stq_data_ra(env, a0 + 8, d1, GETPC());
         env->regs[R_EDX] = d1;
         env->regs[R_EAX] = d0;
         eflags &= ~CC_Z;
@@ -87,11 +108,14 @@ void helper_boundw(CPUX86State *env, target_ulong a0, int v)
 {
     int low, high;
 
-    low = cpu_ldsw_data(env, a0);
-    high = cpu_ldsw_data(env, a0 + 2);
+    low = cpu_ldsw_data_ra(env, a0, GETPC());
+    high = cpu_ldsw_data_ra(env, a0 + 2, GETPC());
     v = (int16_t)v;
     if (v < low || v > high) {
-        raise_exception(env, EXCP05_BOUND);
+        if (env->hflags & HF_MPX_EN_MASK) {
+            env->bndcs_regs.sts = 0;
+        }
+        raise_exception_ra(env, EXCP05_BOUND, GETPC());
     }
 }
 
@@ -99,10 +123,13 @@ void helper_boundl(CPUX86State *env, target_ulong a0, int v)
 {
     int low, high;
 
-    low = cpu_ldl_data(env, a0);
-    high = cpu_ldl_data(env, a0 + 4);
+    low = cpu_ldl_data_ra(env, a0, GETPC());
+    high = cpu_ldl_data_ra(env, a0 + 4, GETPC());
     if (v < low || v > high) {
-        raise_exception(env, EXCP05_BOUND);
+        if (env->hflags & HF_MPX_EN_MASK) {
+            env->bndcs_regs.sts = 0;
+        }
+        raise_exception_ra(env, EXCP05_BOUND, GETPC());
     }
 }
 
@@ -122,11 +149,7 @@ void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
         X86CPU *cpu = X86_CPU(cs);
         CPUX86State *env = &cpu->env;
 
-        if (retaddr) {
-            /* now we have a real cpu fault */
-            cpu_restore_state(cs, retaddr);
-        }
-        raise_exception_err(env, cs->exception_index, env->error_code);
+        raise_exception_err_ra(env, cs->exception_index, env->error_code, retaddr);
     }
 }
 #endif