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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 libvfio_user import *
import ctypes as c
import errno
ctx = None
sock = None
def test_irq_trigger_setup():
global ctx, sock
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_MSIX_IRQ, 2048)
assert ret == 0
ret = vfu_realize_ctx(ctx)
assert ret == 0
sock = connect_client(ctx)
def test_irq_trigger_bad_subindex():
ret = vfu_irq_trigger(ctx, 2048)
assert ret == -1
assert c.get_errno() == errno.EINVAL
ret = vfu_irq_trigger(ctx, 2049)
assert ret == -1
assert c.get_errno() == errno.EINVAL
def test_irq_trigger_no_interrupt():
ret = vfu_irq_trigger(ctx, 0)
assert ret == -1
assert c.get_errno() == errno.ENOENT
def test_irq_trigger():
# struct vfio_irq_set
payload = struct.pack("IIIII", 20, VFIO_IRQ_SET_ACTION_TRIGGER |
VFIO_IRQ_SET_DATA_EVENTFD, VFU_DEV_MSIX_IRQ, 8, 1)
fd = eventfd(initval=4)
msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload, fds=[fd])
vfu_irq_trigger(ctx, 8)
assert struct.unpack("Q", os.read(fd, 8))[0] == 5
def test_irq_trigger_cleanup():
vfu_destroy_ctx(ctx)
# ex: set tabstop=4 shiftwidth=4 softtabstop=4 expandtab
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