tests/avocado: Add pseries KVM boot_linux test

ppc has no avocado tests for the KVM backend. Add a KVM boot_linux.py
test for pseries.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>

tests/avocado/boot_linux.py

@@ -103,6 +103,15 @@ def test_pseries_tcg(self):
         self.vm.add_args("-accel", "tcg")
         self.launch_and_wait(set_up_ssh_connection=False)
 
+    def test_pseries_kvm(self):
+        """
+        :avocado: tags=machine:pseries
+        :avocado: tags=accel:kvm
+        """
+        self.require_accelerator("kvm")
+        self.vm.add_args("-accel", "kvm")
+        self.vm.add_args("-machine", "cap-ccf-assist=off")
+        self.launch_and_wait(set_up_ssh_connection=False)
 
 class BootLinuxS390X(LinuxTest):
     """