mirror of
https://github.com/ben-grande/qusal.git
synced 2025-02-14 06:01:24 -05:00
aea8438904
- Add to qvm-run:
- no-gui when command doesn't require a GUI
- filter-escape-chars when pass-io is set and output is not a file,
such as a pipe that could later be used to print information.
- Change remaining echo to printf
- Add end-of-options separator when possible
44 lines
1.4 KiB
Bash
Executable File
44 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-FileCopyrightText: 2023 - 2025 Benjamin Grande M. S. <ben.grande.b@gmail.com>
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#
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# SPDX-License-Identifier: GPL-3.0-or-later
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## Credits: https://www.qubes-os.org/doc/how-to-use-pci-devices/#bringing-pci-devices-back-to-dom0
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##
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## After attaching a PCI device and detaching it, the device is not available
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## in Dom0 anymore. This is an intended feature. A device which was previously
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## assigned to a less trusted qube could attack dom0 if it were automatically
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## reassigned there. In order to re-enable the device in dom0, either reboot
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## physical machine or run the following script.
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##
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## This is useful for testing purposes when testing PCI devices, not
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## recommended for users to attach a device to Dom0.
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set -eu
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usage(){
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printf '%s\n' "Usage: ${0##*/} --i-like-danger <DEVICE>"
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printf '%s\n' "Example: ${0##*/} --i-like-danger 0000:00:1b.0"
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printf '%s\n' "Warning: Strongly discouraged to reattach PCI devices to"
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printf '%s\n' "Warning: dom0, especially if it doesn't support resetting!"
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exit 1
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}
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case "${1-}" in
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--i-like-danger) ;;
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*) usage;;
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esac
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case "${2-}" in
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"") usage;;
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*) device="${2}"
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esac
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uid="$(id -u)"
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test "${uid}" = "0" || exec sudo "${0}"
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printf '%s\n' "${device}" | tee -- /sys/bus/pci/drivers/pciback/unbind
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modalias="$(cat -- "/sys/bus/pci/devices/${device}/modalias")"
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module="$(modprobe -R "${modalias}" | head -n 1)"
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printf '%s\n' "${device}" | tee -- "/sys/bus/pci/drivers/${module}/bind"
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