| # SPDX-License-Identifier: GPL-2.0-or-later | |
| # | |
| # Test for multiprocess qemu | |
| # | |
| # This work is licensed under the terms of the GNU GPL, version 2 or | |
| # later. See the COPYING file in the top-level directory. | |
| import os | |
| import socket | |
| from qemu_test import QemuSystemTest, wait_for_console_pattern | |
| from qemu_test import exec_command, exec_command_and_wait_for_pattern | |
| class Multiprocess(QemuSystemTest): | |
| KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 ' | |
| def do_test(self, kernel_asset, initrd_asset, | |
| kernel_command_line, machine_type): | |
| """Main test method""" | |
| self.require_accelerator('kvm') | |
| self.require_device('x-pci-proxy-dev') | |
| # Create socketpair to connect proxy and remote processes | |
| proxy_sock, remote_sock = socket.socketpair(socket.AF_UNIX, | |
| socket.SOCK_STREAM) | |
| os.set_inheritable(proxy_sock.fileno(), True) | |
| os.set_inheritable(remote_sock.fileno(), True) | |
| kernel_path = kernel_asset.fetch() | |
| initrd_path = initrd_asset.fetch() | |
| # Create remote process | |
| remote_vm = self.get_vm() | |
| remote_vm.add_args('-machine', 'x-remote') | |
| remote_vm.add_args('-nodefaults') | |
| remote_vm.add_args('-device', 'lsi53c895a,id=lsi1') | |
| remote_vm.add_args('-object', 'x-remote-object,id=robj1,' | |
| 'devid=lsi1,fd='+str(remote_sock.fileno())) | |
| remote_vm.launch() | |
| # Create proxy process | |
| self.vm.set_console() | |
| self.vm.add_args('-machine', machine_type) | |
| self.vm.add_args('-accel', 'kvm') | |
| self.vm.add_args('-cpu', 'host') | |
| self.vm.add_args('-object', | |
| 'memory-backend-memfd,id=sysmem-file,size=2G') | |
| self.vm.add_args('--numa', 'node,memdev=sysmem-file') | |
| self.vm.add_args('-m', '2048') | |
| self.vm.add_args('-kernel', kernel_path, | |
| '-initrd', initrd_path, | |
| '-append', kernel_command_line) | |
| self.vm.add_args('-device', | |
| 'x-pci-proxy-dev,' | |
| 'id=lsi1,fd='+str(proxy_sock.fileno())) | |
| self.vm.launch() | |
| wait_for_console_pattern(self, 'as init process', | |
| 'Kernel panic - not syncing') | |
| exec_command(self, 'mount -t sysfs sysfs /sys') | |
| exec_command_and_wait_for_pattern(self, | |
| 'cat /sys/bus/pci/devices/*/uevent', | |
| 'PCI_ID=1000:0012') | |
| proxy_sock.close() | |
| remote_sock.close() |