| # 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() |
