From 8885cd9a76ec3f67433cc7f0eedec07de4737fad Mon Sep 17 00:00:00 2001
From: Andrea Bolognani <abologna@redhat.com>
Date: Wed, 5 Jan 2022 16:37:51 +0100
Subject: [PATCH] qemu: Only probe KVM on Linux
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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>
---
 src/qemu/qemu_process.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 336f0bab2e..82cf6bbfd8 100644
--- 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);