tests/vm: Only use -cpu 'host' if KVM is available

If KVM is not available, then use the 'max' cpu.

This fixes:

  ERROR:root:Log:
  ERROR:root:qemu-system-x86_64: CPU model 'host' requires KVM
  Failed to prepare guest environment
  error: [Errno 104] Connection reset by peer
  source/qemu/tests/vm/Makefile.include:25: recipe for target 'tests/vm/ubuntu.i386.img' failed
  make: *** [tests/vm/ubuntu.i386.img] Error 2

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180628153535.1411-4-f4bug@amsat.org>
Signed-off-by: Fam Zheng <famz@redhat.com>

diff --git a/tests/vm/basevm.py b/tests/vm/basevm.py
index 36431178161bbf82280b0508251ec2c5f8ca9385..d80cc8ab85b1bb724fd6ba2837f86196e934cae7 100755 (executable)
--- a/tests/vm/basevm.py
+++ b/tests/vm/basevm.py
@@ -65,7 +65,6 @@ class BaseVM(object):
             self._stdout = self._devnull
         self._args = [ \
             "-nodefaults", "-m", "2G",
-            "-cpu", "host",
             "-netdev", "user,id=vnet,hostfwd=:127.0.0.1:0-:22",
             "-device", "virtio-net-pci,netdev=vnet",
             "-vnc", "127.0.0.1:0,to=20",
@@ -73,9 +72,11 @@ class BaseVM(object):
         if vcpus:
             self._args += ["-smp", str(vcpus)]
         if os.access("/dev/kvm", os.R_OK | os.W_OK):
+            self._args += ["-cpu", "host"]
             self._args += ["-enable-kvm"]
         else:
             logging.info("KVM not available, not using -enable-kvm")
+            self._args += ["-cpu", "max"]
         self._data_args = []
 
     def _download_with_cache(self, url, sha256sum=None):