kvm: Add support for querying supported cpu features

kvm does not support all cpu features; add support for dunamically querying
the supported feature set.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/kvm.h b/kvm.h
index 25b120cba6..4cf754962a 100644
--- a/kvm.h
+++ b/kvm.h
@@ -120,6 +120,9 @@ void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
 
 int kvm_check_extension(KVMState *s, unsigned int extension);
 
+uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
+                                      int reg);
+
 /* generic hooks - to be moved/refactored once there are more users */
 
 static inline void cpu_synchronize_state(CPUState *env, int modified)