diff mbox

target-i386: cpu: fix --disable-kvm compilation

Message ID 1351877013-25751-2-git-send-email-afaerber@suse.de
State New
Headers show

Commit Message

Andreas Färber Nov. 2, 2012, 5:23 p.m. UTC 
From: Eduardo Habkost <ehabkost@redhat.com>

This fixes the following:
  target-i386/cpu.o: In function `kvm_cpu_fill_host':
  target-i386/cpu.c:783: undefined reference to `kvm_state'

I didn't notice the problem before because GCC was optimizing the entire
kvm_cpu_fill_host() function out (because all calls are conditional on
kvm_enabled()).

* cpu_x86_fill_model_id() is used only if CONFIG_KVM is set, so #ifdef it
  entirely to avoid compiler warnings.

* kvm_cpu_fill_host() should be called only if KVM is enabled, so
  use #ifdef CONFIG_KVM around the entire function body.

Reported-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-i386/cpu.c |    4 ++++
 1 Datei geändert, 4 Zeilen hinzugefügt(+)
diff mbox

Patch

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index c46286a..e1db639 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -758,6 +758,7 @@  static x86_def_t builtin_x86_defs[] = {
     },
 };
 
+#ifdef CONFIG_KVM
 static int cpu_x86_fill_model_id(char *str)
 {
     uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
@@ -772,6 +773,7 @@  static int cpu_x86_fill_model_id(char *str)
     }
     return 0;
 }
+#endif
 
 /* Fill a x86_def_t struct with information about the host CPU, and
  * the CPU features supported by the host hardware + host kernel
@@ -780,6 +782,7 @@  static int cpu_x86_fill_model_id(char *str)
  */
 static void kvm_cpu_fill_host(x86_def_t *x86_cpu_def)
 {
+#ifdef CONFIG_KVM
     KVMState *s = kvm_state;
     uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
 
@@ -838,6 +841,7 @@  static void kvm_cpu_fill_host(x86_def_t *x86_cpu_def)
      * unsupported ones later.
      */
     x86_cpu_def->svm_features = -1;
+#endif /* CONFIG_KVM */
 }
 
 static int unavailable_host_feature(struct model_features_t *f, uint32_t mask)