crosvm/seccomp/x86_64/snd_cras_device.policy

# Copyright 2021 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

@include /usr/share/policy/crosvm/common_device.policy

open: return ENOENT
openat: return ENOENT
socket: arg0 == AF_UNIX
socketpair: arg0 == AF_UNIX
prctl: arg0 == PR_SET_NAME
connect: 1
prlimit64: 1
setrlimit: 1
sched_setscheduler: 1
timerfd_create: 1
timerfd_gettime: 1
timerfd_settime: 1
Add virtio-snd device with CRAS backend Enable with `--cras-snd`. Verified: Basic playback and capture Missing features: * Getting chmap/jack/stream info from CRAS. They are hardcoded for now. * Jack connect/disconnect notifications from CRAS * Reporting latency bytes to the driver. It is currently hardcoded to 0. BUG=b:179757101 TEST=`aplay` and `arecord` inside a debian img with a 5.10 kernel built with virtio snd support. Launched with crosvm on rammus/kukui/hatch Change-Id: I240000a92418b75b3eb8dcd241ff320214b68739 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2777991 Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: Woody Chow <woodychow@google.com> Reviewed-by: Chih-Yang Hsia <paulhsia@chromium.org> 2021-03-22 08:49:57 +00:00			`# Copyright 2021 The Chromium OS Authors. All rights reserved.`
			`# Use of this source code is governed by a BSD-style license that can be`
			`# found in the LICENSE file.`

			`@include /usr/share/policy/crosvm/common_device.policy`

			`open: return ENOENT`
			`openat: return ENOENT`
			`socket: arg0 == AF_UNIX`
			`socketpair: arg0 == AF_UNIX`
			`prctl: arg0 == PR_SET_NAME`
			`connect: 1`
Set rtprio in virtio-snd (cras backend) worker to 10 (following other cros audio client) BUG=b:199796992 TEST=Examine output of `ps -AT -eo rtprio,command` when the device is running Change-Id: I1293c693e1bd699788d87d5bc085fd4fd281fff1 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3159894 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Chih-Yang Hsia <paulhsia@chromium.org> Commit-Queue: Woody Chow <woodychow@google.com> 2021-09-15 07:26:41 +00:00			`prlimit64: 1`
			`setrlimit: 1`
			`sched_setscheduler: 1`
seccomp: Add timerfd_* to cras_snd_device.policy Following CL:3047951 for cras_audio_device. Without these, the device would crash under crostini. BUG=b:198730031 TEST=tast run $DUT_IP crostini.PulseAudioBasic.* Change-Id: I87a60b87461ff10594ebe7643a631630eabc94ac Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3213791 Auto-Submit: Woody Chow <woodychow@google.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Chirantan Ekbote <chirantan@chromium.org> Commit-Queue: Woody Chow <woodychow@google.com> 2021-10-08 04:50:11 +00:00			`timerfd_create: 1`
			`timerfd_gettime: 1`
			`timerfd_settime: 1`