Testsuite: T861: always use 2 VCPUs

scripts/check-qemu-install

@@ -121,13 +121,6 @@ class StreamToLogger(object):
     def flush(self):
         pass
 
-def get_half_cpus():
-    """ return 1/2 of the numbers of available CPUs """
-    cpu = os.cpu_count()
-    if cpu > 1:
-        cpu /= 2
-    return int(cpu)
-
 OVMF_CODE = '/usr/share/OVMF/OVMF_CODE_4M.secboot.fd'
 OVMF_VARS_TMP = args.disk.replace('.img', '.efivars')
 if args.sbtest:
@@ -162,13 +155,10 @@ def get_qemu_cmd(name, enable_uefi, disk_img, raid=None, iso_img=None, tpm=False
                 f' -device ahci,id=achi0' \
                 f' -device ide-cd,bus=achi0.0,drive=drive-cd1,id=cd1,bootindex=10'
 
-    # test using half of the available CPUs on the system
-    cpucount = get_half_cpus()
-
-    macbase = '52:54:00:00:00'
+    macbase = '02:00:00:00:00'
     cmd = f'qemu-system-x86_64 \
         -name "{name}" \
-        -smp {cpucount},sockets=1,cores={cpucount},threads=1 \
+        -smp 2,sockets=1,cores=2,threads=1 \
         -cpu host \
         -machine {machine},accel=kvm \
         {uefi} \