85 lines
3.1 KiB
Python
85 lines
3.1 KiB
Python
#
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# Copyright (c) 2021 Nutanix Inc. All rights reserved.
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#
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# Authors: John Levon <john.levon@nutanix.com>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of Nutanix nor the names of its contributors may be
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# used to endorse or promote products derived from this software without
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# specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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# DAMAGE.
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#
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from libvfio_user import *
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import errno
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def test_device_get_info():
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global ctx
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ctx = vfu_create_ctx(flags=LIBVFIO_USER_FLAG_ATTACH_NB)
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assert ctx is not None
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ret = vfu_setup_region(ctx, index=VFU_PCI_DEV_BAR0_REGION_IDX, size=4096,
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flags=VFU_REGION_FLAG_RW)
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assert ret == 0
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ret = vfu_setup_region(ctx, index=VFU_PCI_DEV_BAR1_REGION_IDX, size=4096,
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flags=(VFU_REGION_FLAG_RW | VFU_REGION_FLAG_MEM))
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assert ret == 0
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ret = vfu_realize_ctx(ctx)
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assert ret == 0
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# test short write
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sock = connect_client(ctx)
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payload = struct.pack("II", 0, 0)
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msg(ctx, sock, VFIO_USER_DEVICE_GET_INFO, payload,
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expect=errno.EINVAL)
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# bad argsz
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payload = vfio_user_device_info(argsz=8, flags=0,
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num_regions=0, num_irqs=0)
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msg(ctx, sock, VFIO_USER_DEVICE_GET_INFO, payload,
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expect=errno.EINVAL)
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# valid with larger argsz
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payload = vfio_user_device_info(argsz=32, flags=0,
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num_regions=0, num_irqs=0)
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result = msg(ctx, sock, VFIO_USER_DEVICE_GET_INFO, payload)
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(argsz, flags, num_regions, num_irqs) = struct.unpack("IIII", result)
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assert argsz == 16
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assert flags == VFIO_DEVICE_FLAGS_PCI | VFIO_DEVICE_FLAGS_RESET
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assert num_regions == VFU_PCI_DEV_NUM_REGIONS
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assert num_irqs == VFU_DEV_NUM_IRQS
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disconnect_client(ctx, sock)
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vfu_destroy_ctx(ctx)
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# ex: set tabstop=4 shiftwidth=4 softtabstop=4 expandtab: #
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