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#
# Copyright (c) 2021 Nutanix Inc. All rights reserved.
#
# Authors: John Levon <john.levon@nutanix.com>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of Nutanix nor the names of its contributors may be
# used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
# DAMAGE.
#
from unittest.mock import patch
from unittest.mock import ANY
from libvfio_user import *
import errno
import os
ctx = None
client = None
argsz = len(vfio_irq_set())
def test_device_set_irqs_setup():
global ctx, client
ctx = vfu_create_ctx(flags=LIBVFIO_USER_FLAG_ATTACH_NB)
assert ctx is not None
ret = vfu_pci_init(ctx)
assert ret == 0
ret = vfu_setup_device_nr_irqs(ctx, VFU_DEV_REQ_IRQ, 1)
assert ret == 0
ret = vfu_setup_device_nr_irqs(ctx, VFU_DEV_ERR_IRQ, 1)
assert ret == 0
ret = vfu_setup_device_nr_irqs(ctx, VFU_DEV_MSIX_IRQ, 2048)
assert ret == 0
vfu_setup_irq_state_callback(ctx, VFU_DEV_MSIX_IRQ)
assert ret == 0
ret = vfu_realize_ctx(ctx)
assert ret == 0
client = connect_client(ctx)
def test_device_set_irqs_no_irq_set():
hdr = vfio_user_header(VFIO_USER_DEVICE_SET_IRQS, size=0)
client.sock.send(hdr)
vfu_run_ctx(ctx)
get_reply(client.sock, expect=errno.EINVAL)
def test_device_set_irqs_short_write():
payload = struct.pack("II", 0, 0)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_argsz():
payload = vfio_irq_set(argsz=3, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_REQ_IRQ,
start=0, count=0)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_index():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_NUM_IRQS,
start=0, count=0)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_flags_MASK_and_UNMASK():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
VFIO_IRQ_SET_ACTION_UNMASK, index=VFU_DEV_MSIX_IRQ,
start=0, count=0)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_flags_DATA_NONE_and_DATA_BOOL():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_DATA_BOOL,
index=VFU_DEV_MSIX_IRQ, start=0, count=0)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_start_count_range():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
start=2047, count=2)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_start_count_range2():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
start=2049, count=1)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_action_for_err_irq():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_ERR_IRQ,
start=0, count=1)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_action_for_req_irq():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_REQ_IRQ,
start=0, count=1)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_start_count_range_for_err_irq():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_ERR_IRQ,
start=0, count=2)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_start_count_range_for_req_irq():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_REQ_IRQ,
start=0, count=2)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_start_for_count_0():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
start=1, count=0)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_action_for_count_0():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
start=0, count=0)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_action_and_data_type_for_count_0():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_BOOL, index=VFU_DEV_MSIX_IRQ,
start=0, count=0)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_bad_fds_for_DATA_BOOL():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_BOOL, index=VFU_DEV_MSIX_IRQ,
start=0, count=1)
payload = bytes(payload) + struct.pack("?", False)
fd = eventfd()
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL, fds=[fd])
os.close(fd)
def test_device_set_irqs_bad_fds_for_DATA_NONE():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
start=0, count=1)
fd = eventfd()
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL, fds=[fd])
os.close(fd)
def test_device_set_irqs_bad_fds_for_count_2():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_MSIX_IRQ,
start=0, count=2)
fd = eventfd()
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL, fds=[fd])
os.close(fd)
def test_device_set_irqs_disable():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_REQ_IRQ,
start=0, count=0)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload)
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_REQ_IRQ,
start=0, count=1)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload)
def test_device_set_irqs_enable():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_MSIX_IRQ,
start=0, count=1)
fd = eventfd()
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload, fds=[fd])
def test_device_set_irqs_trigger_bool_too_small():
payload = vfio_irq_set(argsz=argsz + 1, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_BOOL, index=VFU_DEV_MSIX_IRQ,
start=0, count=2)
payload = bytes(payload) + struct.pack("?", False)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_trigger_bool_too_large():
payload = vfio_irq_set(argsz=argsz + 3, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_BOOL, index=VFU_DEV_MSIX_IRQ,
start=0, count=2)
payload = bytes(payload) + struct.pack("???", False, False, False)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload,
expect=errno.EINVAL)
def test_device_set_irqs_enable_update():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_MSIX_IRQ,
start=0, count=1)
fd = eventfd()
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload, fds=[fd])
def test_device_set_irqs_enable_trigger_none():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_MSIX_IRQ,
start=0, count=2)
fd1 = eventfd(initval=4)
fd2 = eventfd(initval=8)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload, fds=[fd1, fd2])
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
start=1, count=1)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload)
assert struct.unpack("Q", os.read(fd1, 8))[0] == 4
assert struct.unpack("Q", os.read(fd2, 8))[0] == 9
def test_device_set_irqs_enable_trigger_bool():
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_MSIX_IRQ,
start=0, count=2)
fd1 = eventfd(initval=4)
fd2 = eventfd(initval=8)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload, fds=[fd1, fd2])
payload = vfio_irq_set(argsz=argsz + 2, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_BOOL, index=VFU_DEV_MSIX_IRQ,
start=0, count=2)
payload = bytes(payload) + struct.pack("??", False, True)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload)
assert struct.unpack("Q", os.read(fd1, 8))[0] == 4
assert struct.unpack("Q", os.read(fd2, 8))[0] == 9
@patch('libvfio_user.irq_state')
def test_irq_state(mock_irq_state):
assert mock_irq_state.call_count == 0
payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_DATA_NONE |
VFIO_IRQ_SET_ACTION_MASK,
index=VFU_DEV_MSIX_IRQ,
start=0, count=1)
msg(ctx, client.sock, VFIO_USER_DEVICE_SET_IRQS, payload)
mock_irq_state.assert_called_with(ANY, 0, 1, True)
assert mock_irq_state.call_count == 1
def test_device_set_irqs_cleanup():
vfu_destroy_ctx(ctx)
# ex: set tabstop=4 shiftwidth=4 softtabstop=4 expandtab: #
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