X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Fhw%2Fi386%2Fkvmvapic.c;fp=qemu%2Fhw%2Fi386%2Fkvmvapic.c;h=c69f3740494083805d3393ea434bcdd4b0f8ed12;hb=437fd90c0250dee670290f9b714253671a990160;hp=c6d34b2546a84f7fd96544e0505da1be15aafc3f;hpb=5bbd6fe9b8bab2a93e548c5a53b032d1939eec05;p=kvmfornfv.git

diff --git a/qemu/hw/i386/kvmvapic.c b/qemu/hw/i386/kvmvapic.c
index c6d34b254..c69f37404 100644
--- a/qemu/hw/i386/kvmvapic.c
+++ b/qemu/hw/i386/kvmvapic.c
@@ -8,6 +8,7 @@
  * (at your option) any later version. See the COPYING file in the
  * top-level directory.
  */
+#include "qemu/osdep.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/cpus.h"
 #include "sysemu/kvm.h"
@@ -634,13 +635,18 @@ static int vapic_prepare(VAPICROMState *s)
 static void vapic_write(void *opaque, hwaddr addr, uint64_t data,
                         unsigned int size)
 {
-    CPUState *cs = current_cpu;
-    X86CPU *cpu = X86_CPU(cs);
-    CPUX86State *env = &cpu->env;
-    hwaddr rom_paddr;
     VAPICROMState *s = opaque;
+    X86CPU *cpu;
+    CPUX86State *env;
+    hwaddr rom_paddr;
 
-    cpu_synchronize_state(cs);
+    if (!current_cpu) {
+        return;
+    }
+
+    cpu_synchronize_state(current_cpu);
+    cpu = X86_CPU(current_cpu);
+    env = &cpu->env;
 
     /*
      * The VAPIC supports two PIO-based hypercalls, both via port 0x7E.