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cpus: initialize cpu->memory_dispatch

Message ID 1425911645-20196-1-git-send-email-pbonzini@redhat.com
State New
Headers show

Commit Message

Paolo Bonzini March 9, 2015, 2:34 p.m. UTC 
This fixes a NULL pointer dereference in s390x-softmmu.

On pretty much all other architectures, creating an MMIO region calls
cpu_reload_memory_map.  On s390, however, there are no MMIO regions
and everything is done via hypercalls.

Fixes: 9d82b5a792236db31a75b9db5c93af69ac07c7c5
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 exec.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/exec.c b/exec.c
index c85321a..3280e57 100644
--- a/exec.c
+++ b/exec.c
@@ -548,6 +548,7 @@  void cpu_exec_init(CPUArchState *env)
 #ifndef CONFIG_USER_ONLY
     cpu->as = &address_space_memory;
     cpu->thread_id = qemu_get_thread_id();
+    cpu_reload_memory_map(cpu);
 #endif
     QTAILQ_INSERT_TAIL(&cpus, cpu, node);
 #if defined(CONFIG_USER_ONLY)