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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.
#
import errno
from libvfio_user import *
def test_vfu_realize_ctx_twice():
ctx = vfu_create_ctx()
assert ctx is not None
ret = vfu_realize_ctx(ctx)
assert ret == 0
ret = vfu_realize_ctx(ctx)
assert ret == 0
vfu_destroy_ctx(ctx)
def test_vfu_unrealized_ctx():
ctx = vfu_create_ctx()
assert ctx is not None
vfu_run_ctx(ctx, errno.EINVAL)
vfu_destroy_ctx(ctx)
def test_vfu_realize_ctx_default():
ctx = vfu_create_ctx()
assert ctx is not None
ret = vfu_realize_ctx(ctx)
assert ret == 0
vfu_destroy_ctx(ctx)
def test_vfu_realize_ctx_pci_bars():
ctx = vfu_create_ctx()
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_setup_region(ctx, index=VFU_PCI_DEV_BAR2_REGION_IDX,
size=1048576,
flags=(VFU_REGION_FLAG_RW | VFU_REGION_FLAG_MEM
| VFU_REGION_FLAG_64_BITS))
assert ret == 0
ret = vfu_setup_region(ctx, index=VFU_PCI_DEV_BAR4_REGION_IDX,
size=1073741824,
flags=(VFU_REGION_FLAG_RW | VFU_REGION_FLAG_MEM
| VFU_REGION_FLAG_64_BITS
| VFU_REGION_FLAG_PREFETCH))
assert ret == 0
ret = vfu_realize_ctx(ctx)
assert ret == 0
# region_type should be set non-MEM BAR, unset otherwise
hdr = get_pci_header(ctx)
assert hdr.bars[0].io == PCI_BASE_ADDRESS_SPACE_IO
assert hdr.bars[1].mem == PCI_BASE_ADDRESS_SPACE_MEMORY
assert hdr.bars[2].mem == (PCI_BASE_ADDRESS_SPACE_MEMORY
| PCI_BASE_ADDRESS_MEM_TYPE_64)
assert hdr.bars[4].mem == (PCI_BASE_ADDRESS_SPACE_MEMORY
| PCI_BASE_ADDRESS_MEM_TYPE_64
| PCI_BASE_ADDRESS_MEM_PREFETCH)
vfu_destroy_ctx(ctx)
def test_vfu_realize_ctx_irqs():
ctx = vfu_create_ctx()
assert ctx is not None
ret = vfu_setup_device_nr_irqs(ctx, VFU_DEV_INTX_IRQ, 1)
assert ret == 0
ret = vfu_realize_ctx(ctx)
assert ret == 0
# verify INTA# is available
hdr = get_pci_header(ctx)
assert hdr.intr.ipin == 0x1
vfu_destroy_ctx(ctx)
def test_vfu_realize_ctx_caps():
ctx = vfu_create_ctx()
assert ctx is not None
ret = vfu_pci_init(ctx)
assert ret == 0
pos = vfu_pci_add_capability(ctx, pos=0, flags=0, data=struct.pack(
"ccHH", to_byte(PCI_CAP_ID_PM), b'\0', 0, 0))
assert pos == PCI_STD_HEADER_SIZEOF
ret = vfu_realize_ctx(ctx)
assert ret == 0
# hdr.sts.cl should be 0x1
hdr = get_pci_header(ctx)
assert hdr.sts == (1 << 4)
vfu_destroy_ctx(ctx)
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