89 lines
2.8 KiB
Python
89 lines
2.8 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 ctypes as c
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import errno
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ctx = None
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sock = None
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def test_irq_trigger_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_MSIX_IRQ, 2048)
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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_irq_trigger_bad_subindex():
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ret = vfu_irq_trigger(ctx, 2048)
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assert ret == -1
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assert c.get_errno() == errno.EINVAL
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ret = vfu_irq_trigger(ctx, 2049)
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assert ret == -1
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assert c.get_errno() == errno.EINVAL
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def test_irq_trigger_no_interrupt():
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ret = vfu_irq_trigger(ctx, 0)
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assert ret == -1
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assert c.get_errno() == errno.ENOENT
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def test_irq_trigger():
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# struct vfio_irq_set
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payload = struct.pack("IIIII", 20, VFIO_IRQ_SET_ACTION_TRIGGER |
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VFIO_IRQ_SET_DATA_EVENTFD, VFU_DEV_MSIX_IRQ, 8, 1)
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fd = eventfd(initval=4)
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msg(ctx, sock, VFIO_USER_DEVICE_SET_IRQS, payload, fds=[fd])
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vfu_irq_trigger(ctx, 8)
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assert struct.unpack("Q", os.read(fd, 8))[0] == 5
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def test_irq_trigger_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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