Merge remote-tracking branch 'remotes/dgilbert/tags/pull-hmp-20170331' into staging

[mirror_qemu.git] / cpu-exec-common.c

diff --git a/cpu-exec-common.c b/cpu-exec-common.c
index 43edf3677753d8dac7562abe2c59123624a27c19..e81da276bb0cd78ab2c655f60e7a6001ab8161fd 100644 (file)
--- a/cpu-exec-common.c
+++ b/cpu-exec-common.c
@@ -17,19 +17,14 @@
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "config.h"
+#include "qemu/osdep.h"
 #include "cpu.h"
 #include "sysemu/cpus.h"
+#include "exec/exec-all.h"
 #include "exec/memory-internal.h"
 
-bool exit_request;
-CPUState *tcg_current_cpu;
-
-/* exit the current TB from a signal handler. The host registers are
-   restored in a state compatible with the CPU emulator
- */
-#if defined(CONFIG_SOFTMMU)
-void cpu_resume_from_signal(CPUState *cpu, void *puc)
+/* exit the current TB, but without causing any exception to be raised */
+void cpu_loop_exit_noexc(CPUState *cpu)
 {
     /* XXX: restore cpu registers saved in host registers */
 
@@ -37,9 +32,10 @@ void cpu_resume_from_signal(CPUState *cpu, void *puc)
     siglongjmp(cpu->jmp_env, 1);
 }
 
+#if defined(CONFIG_SOFTMMU)
 void cpu_reloading_memory_map(void)
 {
-    if (qemu_in_vcpu_thread()) {
+    if (qemu_in_vcpu_thread() && current_cpu->running) {
         /* The guest can in theory prolong the RCU critical section as long
          * as it feels like. The major problem with this is that because it
          * can do multiple reconfigurations of the memory map within the
@@ -68,7 +64,6 @@ void cpu_reloading_memory_map(void)
 
 void cpu_loop_exit(CPUState *cpu)
 {
-    cpu->current_tb = NULL;
     siglongjmp(cpu->jmp_env, 1);
 }
 
@@ -77,6 +72,11 @@ void cpu_loop_exit_restore(CPUState *cpu, uintptr_t pc)
     if (pc) {
         cpu_restore_state(cpu, pc);
     }
-    cpu->current_tb = NULL;
     siglongjmp(cpu->jmp_env, 1);
 }
+
+void cpu_loop_exit_atomic(CPUState *cpu, uintptr_t pc)
+{
+    cpu->exception_index = EXCP_ATOMIC;
+    cpu_loop_exit_restore(cpu, pc);
+}