336 lines
12 KiB
Python
336 lines
12 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 unittest.mock import patch
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from unittest.mock import ANY
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from libvfio_user import *
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import errno
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import os
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ctx = None
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sock = None
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argsz = len(vfio_irq_set())
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def test_device_set_irqs_setup():
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global ctx, sock
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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_pci_init(ctx)
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assert ret == 0
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ret = vfu_setup_device_nr_irqs(ctx, VFU_DEV_REQ_IRQ, 1)
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assert ret == 0
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ret = vfu_setup_device_nr_irqs(ctx, VFU_DEV_ERR_IRQ, 1)
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assert ret == 0
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ret = vfu_setup_device_nr_irqs(ctx, VFU_DEV_MSIX_IRQ, 2048)
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assert ret == 0
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vfu_setup_irq_state_callback(ctx, VFU_DEV_MSIX_IRQ)
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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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sock = connect_client(ctx)
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def test_device_set_irqs_no_irq_set():
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hdr = vfio_user_header(VFIO_USER_DEVICE_SET_IRQS, size=0)
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sock.send(hdr)
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vfu_run_ctx(ctx)
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get_reply(sock, expect=errno.EINVAL)
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def test_device_set_irqs_short_write():
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payload = struct.pack("II", 0, 0)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_argsz():
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payload = vfio_irq_set(argsz=3, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_REQ_IRQ,
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start=0, count=0)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_index():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_NUM_IRQS,
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start=0, count=0)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_flags_MASK_and_UNMASK():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
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VFIO_IRQ_SET_ACTION_UNMASK, index=VFU_DEV_MSIX_IRQ,
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start=0, count=0)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_flags_DATA_NONE_and_DATA_BOOL():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
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VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_DATA_BOOL,
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index=VFU_DEV_MSIX_IRQ, start=0, count=0)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_start_count_range():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
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VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
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start=2047, count=2)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_start_count_range2():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
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VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
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start=2049, count=1)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_action_for_err_irq():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
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VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_ERR_IRQ,
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start=0, count=1)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_action_for_req_irq():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
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VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_REQ_IRQ,
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start=0, count=1)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_start_for_count_0():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
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VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
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start=1, count=0)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_action_for_count_0():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_MASK |
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VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
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start=0, count=0)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_action_and_data_type_for_count_0():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_BOOL, index=VFU_DEV_MSIX_IRQ,
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start=0, count=0)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_bad_fds_for_DATA_BOOL():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_BOOL, index=VFU_DEV_MSIX_IRQ,
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start=0, count=1)
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payload = bytes(payload) + struct.pack("?", False)
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fd = eventfd()
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL, fds=[fd])
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os.close(fd)
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def test_device_set_irqs_bad_fds_for_DATA_NONE():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
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start=0, count=1)
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fd = eventfd()
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL, fds=[fd])
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os.close(fd)
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def test_device_set_irqs_bad_fds_for_count_2():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_MSIX_IRQ,
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start=0, count=2)
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fd = eventfd()
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL, fds=[fd])
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os.close(fd)
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def test_device_set_irqs_disable():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_REQ_IRQ,
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start=0, count=0)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload)
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_REQ_IRQ,
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start=0, count=1)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload)
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def test_device_set_irqs_enable():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_MSIX_IRQ,
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start=0, count=1)
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fd = eventfd()
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload, fds=[fd])
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def test_device_set_irqs_trigger_bool_too_small():
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payload = vfio_irq_set(argsz=argsz + 1, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_BOOL, index=VFU_DEV_MSIX_IRQ,
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start=0, count=2)
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payload = bytes(payload) + struct.pack("?", False)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_trigger_bool_too_large():
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payload = vfio_irq_set(argsz=argsz + 3, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_BOOL, index=VFU_DEV_MSIX_IRQ,
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start=0, count=2)
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payload = bytes(payload) + struct.pack("???", False, False, False)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload,
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expect=errno.EINVAL)
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def test_device_set_irqs_enable_update():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_MSIX_IRQ,
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start=0, count=1)
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fd = eventfd()
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload, fds=[fd])
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def test_device_set_irqs_enable_trigger_none():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_MSIX_IRQ,
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start=0, count=2)
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fd1 = eventfd(initval=4)
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fd2 = eventfd(initval=8)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload, fds=[fd1, fd2])
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_NONE, index=VFU_DEV_MSIX_IRQ,
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start=1, count=1)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload)
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assert struct.unpack("Q", os.read(fd1, 8))[0] == 4
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assert struct.unpack("Q", os.read(fd2, 8))[0] == 9
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def test_device_set_irqs_enable_trigger_bool():
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_EVENTFD, index=VFU_DEV_MSIX_IRQ,
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start=0, count=2)
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fd1 = eventfd(initval=4)
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fd2 = eventfd(initval=8)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload, fds=[fd1, fd2])
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payload = vfio_irq_set(argsz=argsz + 2, flags=VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_BOOL, index=VFU_DEV_MSIX_IRQ,
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start=0, count=2)
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payload = bytes(payload) + struct.pack("??", False, True)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload)
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assert struct.unpack("Q", os.read(fd1, 8))[0] == 4
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assert struct.unpack("Q", os.read(fd2, 8))[0] == 9
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@patch('libvfio_user.irq_state')
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def test_irq_state(mock_irq_state):
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assert mock_irq_state.call_count == 0
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payload = vfio_irq_set(argsz=argsz, flags=VFIO_IRQ_SET_DATA_NONE |
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VFIO_IRQ_SET_ACTION_MASK,
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index=VFU_DEV_MSIX_IRQ,
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start=0, count=1)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload)
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mock_irq_state.assert_called_with(ANY, 0, 1, True)
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assert mock_irq_state.call_count == 1
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def test_device_set_irqs_cleanup():
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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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