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3bebfa29dc
This enables the full firmware update/reset/use device in application mode sequence for Edge TPU USB Accelerator. There is a bit of a UI hiccup: once the firmware update and reset is complete, the device re-enumerates with a different VID/PID, and the "Connect to Linux" prompt shows up again. The user must re-affirm that the device should be connected to Linux to proceed with using the Edge TPU. This may be unavoidable - I'm not sure if we can tell the difference between a newly-inserted device and a reset one. Allowing USBDEVFS_DISCONNECT_CLAIM should be safe, since it can only operate on file descriptors passed into the xhci device jail. BUG=chromium:831850 TEST=Run Edge TPU Accelerator demo and verify that it can update FW Change-Id: I3d61c7bd914830ce25448b1ae4d60e1c16f10aed Signed-off-by: Daniel Verkamp <dverkamp@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1599881 Reviewed-by: Zach Reizner <zachr@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com>
42 lines
1.2 KiB
Text
42 lines
1.2 KiB
Text
# Copyright 2018 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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# xhci need "openat" to enumerate device. "openat" is disabled in comman_device policy.
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openat: 1
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@include /usr/share/policy/crosvm/common_device.policy
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lstat: 1
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gettid: 1
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readlinkat: 1
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timerfd_create: 1
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name_to_handle_at: 1
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access: 1
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timerfd_create: 1
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getsockname: 1
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pipe: 1
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setsockopt: 1
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bind: 1
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fcntl: 1
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socket: arg0 == AF_NETLINK
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stat: 1
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uname: 1
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# The following ioctls are:
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# 0x4008550d == USBDEVFS_REAPURBNDELAY
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# 0x41045508 == USBDEVFS_GETDRIVER
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# 0x550b == USBDEVFS_DISCARDURB
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# 0x8004550f == USBDEVFS_CLAIMINTERFACE
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# 0x80045510 == USBDEVFS_RELEASEINTERFACE
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# 0x8004551a == USBDEVFS_GET_CAPABILITIES
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# 0x8038550a == USBDEVFS_SUBMITURB
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# 0xc0185500 == USBDEVFS_CONTROL
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# 0x5514 == USBDEVFS_RESET
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# 0x80045505 == USBDEVFS_SETCONFIGURATION
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# 0x8108551b == USBDEVFS_DISCONNECT_CLAIM
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ioctl: arg1 == 0xc0185500 || arg1 == 0x41045508 || arg1 == 0x8004550f || arg1 == 0x4008550d || arg1 == 0x8004551a || arg1 == 0x550b || arg1 == 0x80045510 || arg1 == 0x8038550a || arg1 == 0x5514 || arg1 == 0x80045505 || arg1 == 0x8108551b
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fstat: 1
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sigaltstack: 1
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recvmsg: 1
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getrandom: 1
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getdents: 1
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