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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
def test_device_get_info():
global ctx
ctx = vfu_create_ctx(flags=LIBVFIO_USER_FLAG_ATTACH_NB)
assert ctx is not None
ret = vfu_setup_region(ctx, index=VFU_PCI_DEV_BAR0_REGION_IDX, size=4096,
flags=VFU_REGION_FLAG_RW)
assert ret == 0
ret = vfu_setup_region(ctx, index=VFU_PCI_DEV_BAR1_REGION_IDX, size=4096,
flags=(VFU_REGION_FLAG_RW | VFU_REGION_FLAG_MEM))
assert ret == 0
ret = vfu_realize_ctx(ctx)
assert ret == 0
# test short write
sock = connect_client(ctx)
payload = struct.pack("II", 0, 0)
msg(ctx, sock, VFIO_USER_DEVICE_GET_INFO, payload,
expect=errno.EINVAL)
# bad argsz
payload = vfio_user_device_info(argsz=8, flags=0,
num_regions=0, num_irqs=0)
msg(ctx, sock, VFIO_USER_DEVICE_GET_INFO, payload,
expect=errno.EINVAL)
# valid with larger argsz
payload = vfio_user_device_info(argsz=32, flags=0,
num_regions=0, num_irqs=0)
result = msg(ctx, sock, VFIO_USER_DEVICE_GET_INFO, payload)
(argsz, flags, num_regions, num_irqs) = struct.unpack("IIII", result)
assert argsz == 16
assert flags == VFIO_DEVICE_FLAGS_PCI | VFIO_DEVICE_FLAGS_RESET
assert num_regions == VFU_PCI_DEV_NUM_REGIONS
assert num_irqs == VFU_DEV_NUM_IRQS
disconnect_client(ctx, sock)
vfu_destroy_ctx(ctx)
# ex: set tabstop=4 shiftwidth=4 softtabstop=4 expandtab: #
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