Yaya48
cf256aa081
Upstream: https://gitlab.com/qemu-project/qemu.git Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475
240 lines
10 KiB
Python
Executable File
240 lines
10 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Test that Linux kernel boots on ppc powernv machines and check the console
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#
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# Copyright (c) 2018, 2020 Red Hat, Inc.
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or
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# later. See the COPYING file in the top-level directory.
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from qemu_test import LinuxKernelTest, Asset
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from qemu_test import wait_for_console_pattern
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from qemu_test import exec_command_and_wait_for_pattern
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class PowernvMachine(LinuxKernelTest):
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timeout = 90
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KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 console=hvc0 '
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panic_message = 'Kernel panic - not syncing'
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good_message = 'VFS: Cannot open root device'
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ASSET_KERNEL = Asset(
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('https://github.com/legoater/qemu-ppc-boot/raw/refs/heads/main/'
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'buildroot/qemu_ppc64le_powernv8-2025.02/vmlinux'),
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'6fd29aff9ad4362511ea5d0acbb510667c7031928e97d64ec15bbc5daf4b8151')
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ASSET_INITRD = Asset(
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('https://github.com/legoater/qemu-ppc-boot/raw/refs/heads/main/'
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'buildroot/qemu_ppc64le_powernv8-2025.02/rootfs.ext2'),
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'aee2192b692077c4bde31cb56ce474424b358f17cec323d5c94af3970c9aada2')
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# testdtb for power11, which contains string "hello world" in command line
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ASSET_SAMPLE_DTB = Asset(
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('https://github.com/roz3x/qemu/raw/refs/heads/sample-dtb/qemu-powernv11.dtb'),
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'ea1271516264eea1eb58a067a99d0c2ca9528be8dc7d4e46bb2d5ae0d42fc568')
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def shell_exec_command_check_fail(self, command):
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fail_msg="Fail"
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self.shell_exec_command(f"export __FAIL_MSG={fail_msg}")
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# If the exit code for the command is non 0, print fail message
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command = command + " || echo $__FAIL_MSG"
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exec_command_and_wait_for_pattern(self, command, '#', fail_msg)
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def shell_exec_command(self, command):
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exec_command_and_wait_for_pattern(self, command, '#', self.panic_message)
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def do_test_linux_boot(self, command_line = KERNEL_COMMON_COMMAND_LINE):
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self.require_accelerator("tcg")
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kernel_path = self.ASSET_KERNEL.fetch()
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self.vm.set_console()
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self.vm.add_args('-kernel', kernel_path,
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'-append', command_line)
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self.vm.launch()
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def test_linux_boot(self):
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self.set_machine('powernv')
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self.do_test_linux_boot()
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console_pattern = 'VFS: Cannot open root device'
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wait_for_console_pattern(self, console_pattern, self.panic_message)
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def test_linux_smp_boot(self):
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self.set_machine('powernv')
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self.vm.add_args('-smp', '4')
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self.do_test_linux_boot()
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console_pattern = 'smp: Brought up 1 node, 4 CPUs'
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wait_for_console_pattern(self, console_pattern, self.panic_message)
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wait_for_console_pattern(self, self.good_message, self.panic_message)
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def test_linux_smp_hpt_boot(self):
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self.set_machine('powernv')
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self.vm.add_args('-smp', '4')
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self.do_test_linux_boot(self.KERNEL_COMMON_COMMAND_LINE +
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'disable_radix')
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console_pattern = 'smp: Brought up 1 node, 4 CPUs'
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wait_for_console_pattern(self, 'hash-mmu: Initializing hash mmu',
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self.panic_message)
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wait_for_console_pattern(self, console_pattern, self.panic_message)
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wait_for_console_pattern(self, self.good_message, self.panic_message)
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def test_linux_smt_boot(self):
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self.set_machine('powernv')
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self.vm.add_args('-smp', '4,threads=4')
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self.do_test_linux_boot()
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console_pattern = 'CPU maps initialized for 4 threads per core'
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wait_for_console_pattern(self, console_pattern, self.panic_message)
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console_pattern = 'smp: Brought up 1 node, 4 CPUs'
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wait_for_console_pattern(self, console_pattern, self.panic_message)
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wait_for_console_pattern(self, self.good_message, self.panic_message)
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def test_linux_remote_interrupts(self):
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self.require_accelerator("tcg")
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self.require_netdev('user')
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self.set_machine('powernv')
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# Have below setup in this test:
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# 1. e1000e attached to pcie.6, which is from 7th PHB, belonging to 2nd
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# socket (chip 1), in a powernv boot with default 6 PHBs per socket
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# 2. CPU on 2nd socket (chip 1) disabled
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# 3. RX IRQ's affinity to chip 2, and TX IRQ's affinity to chip 3
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#
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# Then ping is done, to generate interrupts from e1000e which should go
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# to IRQ server on the remote sockets
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self.vm.add_args('-smp', '4,sockets=4,cores=1,threads=1')
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self.vm.add_args('-netdev', 'user,id=net0')
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self.vm.add_args('-device', 'e1000e,netdev=net0,bus=pcie.6')
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kernel_path = self.ASSET_KERNEL.fetch()
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rootfs_path = self.ASSET_INITRD.fetch()
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self.vm.set_console()
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self.vm.add_args('-kernel', kernel_path,
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'-drive',
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f'file={rootfs_path},format=raw,if=none,id=drive0,readonly=on',
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'-append', 'root=/dev/nvme0n1 console=hvc0',
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'-device', 'nvme,drive=drive0,bus=pcie.2,addr=0x0,serial=1234')
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self.vm.launch()
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# Wait for boot to complete
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console_pattern = 'CPU maps initialized for 1 thread per core'
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wait_for_console_pattern(self, console_pattern, self.panic_message)
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console_pattern = 'smp: Brought up 4 nodes, 4 CPUs'
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wait_for_console_pattern(self, console_pattern, self.panic_message)
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wait_for_console_pattern(self, 'Run /sbin/init as init process',
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self.panic_message)
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# Wait for login prompt and login as root (no password in buildroot)
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wait_for_console_pattern(self, 'login:', self.panic_message)
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exec_command_and_wait_for_pattern(self, 'root', '#', self.panic_message)
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# e1000e is connected to socket 1, disable the CPU on socket 1
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self.shell_exec_command("echo 0 > /sys/devices/system/cpu/cpu1/online")
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self.shell_exec_command(
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"export CPU1_STATE=$(cat /sys/devices/system/cpu/cpu1/online)")
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self.shell_exec_command_check_fail("[ $CPU1_STATE -eq 0 ]")
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# RX, TX interrupts to chip/cpu 2 & 3 respectively
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self.shell_exec_command(
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"export RX_IRQ=$(awk '/eth0-rx/ {print $1}' /proc/interrupts | tr -d ':')")
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self.shell_exec_command(
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"export TX_IRQ=$(awk '/eth0-tx/ {print $1}' /proc/interrupts | tr -d ':')")
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self.shell_exec_command("echo 2 > /proc/irq/$RX_IRQ/smp_affinity_list")
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self.shell_exec_command("echo 3 > /proc/irq/$TX_IRQ/smp_affinity_list")
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# Capture interrupt counts before generating traffic
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self.shell_exec_command(
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"export RX_BEFORE=$(awk '/eth0-rx/ {print $3}' /proc/interrupts)")
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self.shell_exec_command(
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"export TX_BEFORE=$(awk '/eth0-tx/ {print $4}' /proc/interrupts)")
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# Wait up to 15 seconds for eth0 link to come up
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self.shell_exec_command(
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"c=0; while ! ip addr show eth0 | grep 'inet 10.0.2'; do "
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"sleep 1; c=$((c+1)); [ $c -gt 15 ] && break; done")
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self.shell_exec_command_check_fail(
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"ip addr show eth0 | grep 'inet 10.0.2'")
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# Generate network traffic to trigger remote interrupts
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# Ping QEMU's user-mode network gateway (10.0.2.2)
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self.shell_exec_command("ping -W2 -c5 10.0.2.2")
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# Show final interrupt counts to verify remote interrupts occurred
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self.shell_exec_command("cat /proc/interrupts | grep eth0")
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# Verify interrupt counts increased (whether interrupts were delivered)
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self.shell_exec_command(
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"export RX_AFTER=$(awk '/eth0-rx/ {print $3}' /proc/interrupts)")
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self.shell_exec_command(
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"export TX_AFTER=$(awk '/eth0-tx/ {print $4}' /proc/interrupts)")
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# Check that interrupt counts increased
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self.shell_exec_command_check_fail("[ $RX_AFTER -gt $RX_BEFORE ]")
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self.shell_exec_command_check_fail("[ $TX_AFTER -gt $TX_BEFORE ]")
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def test_linux_big_boot(self):
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self.set_machine('powernv')
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self.vm.add_args('-smp', '16,threads=4,cores=2,sockets=2')
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# powernv does not support NUMA
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self.do_test_linux_boot()
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console_pattern = 'CPU maps initialized for 4 threads per core'
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wait_for_console_pattern(self, console_pattern, self.panic_message)
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console_pattern = 'smp: Brought up 2 nodes, 16 CPUs'
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wait_for_console_pattern(self, console_pattern, self.panic_message)
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wait_for_console_pattern(self, self.good_message, self.panic_message)
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def do_test_ppc64_powernv(self, proc):
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self.require_accelerator("tcg")
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kernel_path = self.ASSET_KERNEL.fetch()
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initrd_path = self.ASSET_INITRD.fetch()
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self.vm.set_console()
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self.vm.add_args('-kernel', kernel_path,
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'-drive',
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f'file={initrd_path},format=raw,if=none,id=drive0,readonly=on',
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'-append', 'root=/dev/nvme0n1 console=tty0 console=hvc0',
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'-device', 'pcie-pci-bridge,id=bridge1,bus=pcie.1,addr=0x0',
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'-device', 'nvme,drive=drive0,bus=pcie.2,addr=0x0,serial=1234',
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'-device', 'e1000e,bus=bridge1,addr=0x3',
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'-device', 'nec-usb-xhci,bus=bridge1,addr=0x2')
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self.vm.launch()
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self.wait_for_console_pattern("CPU: " + proc + " generation processor")
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self.wait_for_console_pattern("INIT: Starting kernel at ")
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self.wait_for_console_pattern("Run /sbin/init as init process")
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# Device detection output driven by udev probing is sometimes cut off
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# from console output, suspect S14silence-console init script.
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def test_ppc64_powernv_external_dtb(self):
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self.set_machine('powernv11')
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self.require_accelerator("tcg")
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kernel_path = self.ASSET_KERNEL.fetch()
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sample_dtb_path = self.ASSET_SAMPLE_DTB.fetch()
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self.vm.set_console()
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self.vm.add_args('-kernel', kernel_path,
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'-dtb', sample_dtb_path)
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self.vm.launch()
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# check if custom dtb is reflected or not
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wait_for_console_pattern(self, "Kernel command line: hello world", self.panic_message)
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def test_powernv8(self):
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self.set_machine('powernv8')
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self.do_test_ppc64_powernv('P8')
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def test_powernv9(self):
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self.set_machine('powernv9')
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self.do_test_ppc64_powernv('P9')
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def test_powernv10(self):
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self.set_machine('powernv10')
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self.do_test_ppc64_powernv('P10')
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def test_powernv11(self):
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self.set_machine('powernv11')
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self.do_test_ppc64_powernv('Power11')
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if __name__ == '__main__':
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LinuxKernelTest.main()
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