mirror of
https://chromium.googlesource.com/crosvm/crosvm
synced 2024-10-23 12:49:55 +00:00
91296bdee0
Make vvu use devices use VFIO to manage their virt queues. This alleviates the need to use noiommu mode. However, it is still necessary to use `vfio_iommu_type1.allow_unsafe_interrupts=1`. BUG=b:202151642,b:215310597 TEST=launch sibling with vvu + virtio-iommu Cq-Depend: chromium:3565728, chromium:3565260 Change-Id: If418524598c40a37d41c0ffaa1dcc0f8ee11fcb3 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3501052 Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: David Stevens <stevensd@chromium.org>
58 lines
1.7 KiB
Bash
Executable file
58 lines
1.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Copyright 2022 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# Regenerate vfio_sys bindgen bindings.
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set -euo pipefail
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cd "$(dirname "${BASH_SOURCE[0]}")/.."
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source tools/impl/bindgen-common.sh
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# VFIO_TYPE is translated as a u8 since it is a char constant, but it needs to be u32 for use in
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# ioctl macros.
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fix_vfio_type() {
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sed -E -e 's/^pub const VFIO_TYPE: u8 = (.*)u8;/pub const VFIO_TYPE: u32 = \1;/'
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}
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VFIO_EXTRA="// Added by vfio_sys/bindgen.sh
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use data_model::DataInit;
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#[repr(C)]
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#[derive(Debug, Default)]
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pub struct vfio_region_info_with_cap {
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pub region_info: vfio_region_info,
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pub cap_info: __IncompleteArrayField<u8>,
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}
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// vfio_iommu_type1_info_cap_iova_range minus the incomplete iova_ranges
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// array, so that Copy/DataInit can be implemented.
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#[repr(C)]
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#[derive(Debug, Default, Copy, Clone)]
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pub struct vfio_iommu_type1_info_cap_iova_range_header {
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pub header: vfio_info_cap_header,
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pub nr_iovas: u32,
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pub reserved: u32,
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}
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// Safe because it only has data and no implicit padding.
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unsafe impl DataInit for vfio_info_cap_header {}
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// Safe because it only has data and no implicit padding.
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unsafe impl DataInit for vfio_iommu_type1_info_cap_iova_range_header {}
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// Safe because it only has data and no implicit padding.
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unsafe impl DataInit for vfio_iova_range {}"
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bindgen_generate \
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--raw-line "${VFIO_EXTRA}" \
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--allowlist-var='VFIO_.*' \
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--blocklist-item='VFIO_DEVICE_API_.*_STRING' \
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--allowlist-type='vfio_.*' \
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"${BINDGEN_LINUX}/include/uapi/linux/vfio.h" \
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-- \
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-D__user= \
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| replace_linux_int_types | fix_vfio_type \
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> vfio_sys/src/vfio.rs
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