qemu: Only probe KVM on Linux

We already know it's not going to be available on other
platforms.

Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Tested-by: Brad Laue <brad@brad-x.com>
Tested-by: Christophe Fergeau <cfergeau@redhat.com>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 336f0bab2e7a6efdeb80801246c6e1e507109f53..82cf6bbfd8455711e57750551990caa140c2be19 100644 (file)
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -9239,6 +9239,12 @@ qemuProcessQMPInit(qemuProcessQMP *proc)
 }
 
 
+#if defined(__linux__)
+# define hwaccel "kvm:tcg"
+#else
+# define hwaccel "tcg"
+#endif
+
 static int
 qemuProcessQMPLaunch(qemuProcessQMP *proc)
 {
@@ -9249,7 +9255,7 @@ qemuProcessQMPLaunch(qemuProcessQMP *proc)
     if (proc->forceTCG)
         machine = "none,accel=tcg";
     else
-        machine = "none,accel=kvm:tcg";
+        machine = "none,accel=" hwaccel;
 
     VIR_DEBUG("Try to probe capabilities of '%s' via QMP, machine %s",
               proc->binary, machine);