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#
# Copyright (c) 2021 Nutanix Inc. All rights reserved.
#
# Author: Thanos Makatos <thanos.makatos@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 *
ctx = None
sock = None
argsz = len(vfio_region_info())
def test_device_get_region_info_setup():
global ctx, sock
ctx = vfu_create_ctx(flags=LIBVFIO_USER_FLAG_ATTACH_NB)
assert ctx is not None
ret = vfu_realize_ctx(ctx)
assert ret == 0
sock = connect_client(ctx)
def test_device_get_region_info_zero_sized_region():
"""Tests that a zero-sized region has no caps."""
global sock
for index in [VFU_PCI_DEV_BAR1_REGION_IDX, VFU_PCI_DEV_MIGR_REGION_IDX]:
payload = vfio_region_info(argsz=argsz, flags=0,
index=index, cap_offset=0,
size=0, offset=0)
hdr = vfio_user_header(VFIO_USER_DEVICE_GET_REGION_INFO,
size=len(payload))
sock.send(hdr + payload)
vfu_run_ctx(ctx)
result = get_reply(sock)
assert len(result) == argsz
info, _ = vfio_region_info.pop_from_buffer(result)
assert info.argsz == argsz
assert info.flags == 0
assert info.index == index
assert info.cap_offset == 0
assert info.size == 0
assert info.offset == 0
vfu_destroy_ctx(ctx)
# ex: set tabstop=4 shiftwidth=4 softtabstop=4 expandtab: #
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