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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 errno
ctx = None
sock = None
argsz = len(vfio_irq_info())
def test_device_get_irq_info_setup():
global ctx, sock
ctx = vfu_create_ctx(flags=LIBVFIO_USER_FLAG_ATTACH_NB)
assert ctx != 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
ret = vfu_realize_ctx(ctx)
assert ret == 0
sock = connect_client(ctx)
def test_device_get_irq_info_bad_in():
payload = struct.pack("II", 0, 0)
msg(ctx, sock, VFIO_USER_DEVICE_GET_IRQ_INFO, payload, expect=errno.EINVAL)
# bad argsz
payload = vfio_irq_info(argsz=8, flags=0, index=VFU_DEV_REQ_IRQ,
count=0)
msg(ctx, sock, VFIO_USER_DEVICE_GET_IRQ_INFO, payload, expect=errno.EINVAL)
# bad index
payload = vfio_irq_info(argsz=argsz, flags=0, index=VFU_DEV_NUM_IRQS,
count=0)
msg(ctx, sock, VFIO_USER_DEVICE_GET_IRQ_INFO, payload, expect=errno.EINVAL)
def test_device_get_irq_info():
# valid with larger argsz
payload = vfio_irq_info(argsz=argsz + 16, flags=0, index=VFU_DEV_REQ_IRQ,
count=0)
msg(ctx, sock, VFIO_USER_DEVICE_GET_IRQ_INFO, payload)
payload = vfio_irq_info(argsz=argsz, flags=0, index=VFU_DEV_REQ_IRQ,
count=0)
result = msg(ctx, sock, VFIO_USER_DEVICE_GET_IRQ_INFO, payload)
info, _ = vfio_irq_info.pop_from_buffer(result)
assert info.argsz == argsz
assert info.flags == VFIO_IRQ_INFO_EVENTFD
assert info.index == VFU_DEV_REQ_IRQ
assert info.count == 1
payload = vfio_irq_info(argsz=argsz, flags=0, index=VFU_DEV_ERR_IRQ,
count=0)
result = msg(ctx, sock, VFIO_USER_DEVICE_GET_IRQ_INFO, payload)
info, _ = vfio_irq_info.pop_from_buffer(result)
assert info.argsz == argsz
assert info.flags == VFIO_IRQ_INFO_EVENTFD
assert info.index == VFU_DEV_ERR_IRQ
assert info.count == 1
payload = vfio_irq_info(argsz=argsz, flags=0, index=VFU_DEV_MSIX_IRQ,
count=0)
result = msg(ctx, sock, VFIO_USER_DEVICE_GET_IRQ_INFO, payload)
info, _ = vfio_irq_info.pop_from_buffer(result)
assert info.argsz == argsz
assert info.flags == VFIO_IRQ_INFO_EVENTFD
assert info.index == VFU_DEV_MSIX_IRQ
assert info.count == 2048
def test_device_get_irq_info_cleanup():
disconnect_client(ctx, sock)
vfu_destroy_ctx(ctx)
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