kvm: Enable user space NMI injection for kvm guest

Make use of the new KVM_NMI IOCTL to send NMIs into the KVM guest if the
user space raised them. (example: qemu monitor's "nmi" command)

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/configure b/configure
index 210670c16f..9a02d1f730 100755
--- a/configure
+++ b/configure
@@ -1671,6 +1671,9 @@ if test "$kvm" != "no" ; then
 #if !defined(KVM_CAP_DESTROY_MEMORY_REGION_WORKS)
 #error Missing KVM capability KVM_CAP_DESTROY_MEMORY_REGION_WORKS
 #endif
+#if !defined(KVM_CAP_USER_NMI)
+#error Missing KVM capability KVM_CAP_USER_NMI
+#endif
 int main(void) { return 0; }
 EOF
   if test "$kerneldir" != "" ; then