| #!/usr/bin/env python3 |
| # |
| # Tests that specifically try to exercise hypervisor features of the |
| # target machines. powernv supports the Power hypervisor ISA, and |
| # pseries supports the nested-HV hypervisor spec. |
| # |
| # Copyright (c) 2023 IBM Corporation |
| # |
| # This work is licensed under the terms of the GNU GPL, version 2 or |
| # later. See the COPYING file in the top-level directory. |
| |
| from qemu_test import QemuSystemTest, Asset |
| from qemu_test import wait_for_console_pattern, exec_command |
| from qemu_test import skipIfMissingCommands, skipBigDataTest |
| from qemu_test import exec_command_and_wait_for_pattern |
| import os |
| import time |
| import subprocess |
| from datetime import datetime |
| |
| # Alpine is a light weight distro that supports QEMU. These tests boot |
| # that on the machine then run a QEMU guest inside it in KVM mode, |
| # that runs the same Alpine distro image. |
| # QEMU packages are downloaded and installed on each test. That's not a |
| # large download, but it may be more polite to create qcow2 image with |
| # QEMU already installed and use that. |
| # XXX: The order of these tests seems to matter, see git blame. |
| @skipIfMissingCommands("xorriso") |
| @skipBigDataTest() |
| class HypervisorTest(QemuSystemTest): |
| |
| timeout = 1000 |
| KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 console=hvc0 ' |
| panic_message = 'Kernel panic - not syncing' |
| good_message = 'VFS: Cannot open root device' |
| |
| ASSET_ISO = Asset( |
| ('https://dl-cdn.alpinelinux.org/alpine/v3.21/' |
| 'releases/ppc64le/alpine-standard-3.21.0-ppc64le.iso'), |
| '7651ab4e3027604535c0b36e86c901b4695bf8fe97b908f5b48590f6baae8f30') |
| |
| def extract_from_iso(self, iso, path): |
| """ |
| Extracts a file from an iso file into the test workdir |
| |
| :param iso: path to the iso file |
| :param path: path within the iso file of the file to be extracted |
| :returns: path of the extracted file |
| """ |
| filename = self.scratch_file(os.path.basename(path)) |
| |
| cmd = "xorriso -osirrox on -indev %s -cpx %s %s" % (iso, path, filename) |
| subprocess.run(cmd.split(), |
| stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL) |
| |
| os.chmod(filename, 0o600) |
| |
| return filename |
| |
| def setUp(self): |
| super().setUp() |
| |
| self.iso_path = self.ASSET_ISO.fetch() |
| self.vmlinuz = self.extract_from_iso(self.iso_path, '/boot/vmlinuz-lts') |
| self.initramfs = self.extract_from_iso(self.iso_path, '/boot/initramfs-lts') |
| |
| def do_start_alpine(self): |
| self.vm.set_console() |
| kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE |
| self.vm.add_args("-kernel", self.vmlinuz) |
| self.vm.add_args("-initrd", self.initramfs) |
| self.vm.add_args("-smp", "4", "-m", "2g") |
| self.vm.add_args("-drive", f"file={self.iso_path},format=raw,if=none," |
| "id=drive0,read-only=true") |
| |
| self.vm.launch() |
| ps1='localhost:~#' |
| wait_for_console_pattern(self, 'localhost login:') |
| exec_command_and_wait_for_pattern(self, 'root', ps1) |
| # If the time is wrong, SSL certificates can fail. |
| exec_command_and_wait_for_pattern(self, 'date -s "' + datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S' + '"'), ps1) |
| ps1='alpine:~#' |
| exec_command_and_wait_for_pattern(self, 'setup-alpine -qe', ps1) |
| exec_command_and_wait_for_pattern(self, 'setup-apkrepos -c1', ps1) |
| exec_command_and_wait_for_pattern(self, 'apk update', ps1) |
| # Could upgrade here but it usually should not be necessary |
| # exec_command_and_wait_for_pattern(self, 'apk upgrade --available', ps1) |
| |
| def do_stop_alpine(self): |
| exec_command(self, 'echo "TEST ME"') |
| wait_for_console_pattern(self, 'alpine:~#') |
| exec_command(self, 'poweroff') |
| wait_for_console_pattern(self, 'reboot: Power down') |
| self.vm.wait() |
| |
| def do_setup_kvm(self): |
| ps1='alpine:~#' |
| exec_command_and_wait_for_pattern(self, 'apk add qemu-system-ppc64', ps1) |
| exec_command_and_wait_for_pattern(self, 'modprobe kvm-hv', ps1) |
| |
| # This uses the host's block device as the source file for guest block |
| # device for install media. This is a bit hacky but allows reuse of the |
| # iso without having a passthrough filesystem configured. |
| def do_test_kvm(self, hpt=False): |
| if hpt: |
| append = 'disable_radix' |
| else: |
| append = '' |
| exec_command(self, 'qemu-system-ppc64 -nographic -smp 2 -m 1g ' |
| '-machine pseries,x-vof=on,accel=kvm ' |
| '-machine cap-cfpc=broken,cap-sbbc=broken,' |
| 'cap-ibs=broken,cap-ccf-assist=off ' |
| '-drive file=/dev/nvme0n1,format=raw,readonly=on ' |
| '-initrd /media/nvme0n1/boot/initramfs-lts ' |
| '-kernel /media/nvme0n1/boot/vmlinuz-lts ' |
| '-append \'usbcore.nousb ' + append + '\'') |
| # Alpine 3.21 kernel seems to crash in XHCI USB driver. |
| ps1='localhost:~#' |
| wait_for_console_pattern(self, 'localhost login:') |
| exec_command_and_wait_for_pattern(self, 'root', ps1) |
| exec_command(self, 'poweroff') |
| wait_for_console_pattern(self, 'reboot: Power down') |
| # Now wait for the host's prompt to come back |
| wait_for_console_pattern(self, 'alpine:~#') |
| |
| def test_hv_pseries(self): |
| self.require_accelerator("tcg") |
| self.set_machine('pseries') |
| self.vm.add_args("-accel", "tcg,thread=multi") |
| self.vm.add_args('-device', 'nvme,serial=1234,drive=drive0') |
| self.vm.add_args("-machine", "x-vof=on,cap-nested-hv=on") |
| self.do_start_alpine() |
| self.do_setup_kvm() |
| self.do_test_kvm() |
| self.do_stop_alpine() |
| |
| def test_hv_pseries_kvm(self): |
| self.require_accelerator("kvm") |
| self.set_machine('pseries') |
| self.vm.add_args("-accel", "kvm") |
| self.vm.add_args('-device', 'nvme,serial=1234,drive=drive0') |
| self.vm.add_args("-machine", "x-vof=on,cap-nested-hv=on,cap-ccf-assist=off") |
| self.do_start_alpine() |
| self.do_setup_kvm() |
| self.do_test_kvm() |
| self.do_stop_alpine() |
| |
| def test_hv_powernv(self): |
| self.require_accelerator("tcg") |
| self.set_machine('powernv') |
| self.vm.add_args("-accel", "tcg,thread=multi") |
| self.vm.add_args('-device', 'nvme,bus=pcie.2,addr=0x0,serial=1234,drive=drive0', |
| '-device', 'e1000e,netdev=net0,mac=C0:FF:EE:00:00:02,bus=pcie.0,addr=0x0', |
| '-netdev', 'user,id=net0,hostfwd=::20022-:22,hostname=alpine') |
| self.do_start_alpine() |
| self.do_setup_kvm() |
| self.do_test_kvm() |
| self.do_test_kvm(True) |
| self.do_stop_alpine() |
| |
| if __name__ == '__main__': |
| QemuSystemTest.main() |
