sriov: fix ipxe rom file issue

Relying on ipxe build in tests when cannot obtain VF pxe rom file is an unstable testing method. Because this case is mainly to test the xml but not the pxe function. So we decided to use the fixed virtio rom file to test.

Signed-off-by: Meina Li <[email protected]>

provider/sriov/sriov_base.py

@@ -258,12 +258,11 @@ def get_rom_file(self):
         rom_vendor_device = lspci_stdout[1:-1].replace(':', '') + '.rom'
         rom_file = os.path.join('/usr/share/ipxe', rom_vendor_device)
         if not os.path.exists(rom_file):
-            build_cmd = "git clone https://github.com/ipxe/ipxe.git;\
-                         pushd ipxe/src; make bin/{0}; cp bin/{0} {1}; popd; \
-                         rm -rf ipxe".format(rom_vendor_device, rom_file)
-            process.run(build_cmd, shell=True, verbose=True)
+            # Directly use virtio rom file because it mainly test xml but not pxe function.
+            rom_file = "/usr/share/ipxe/1af41000.rom"
             if not os.path.exists(rom_file):
-                self.test.error("This test needs rom file: %s." % rom_file)
+                self.test.error("This test needs rom file but the virtio rom file also doesn't exist: %s."
+                                % rom_file)
         return rom_file
 
     def create_iface_dev(self, dev_type, iface_dict):