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5ebe30d0e5
Add support for guest fences backed by host sync_files. Rather than adding a new fence type, fences are implemented as vfds that only support hup. The host simply waits on the sync_file and sends the guest a hup when the fence is signaled. BUG=b:169908659 TEST=Revert ag/15543199, resize ArcCameraFpsTest Change-Id: I8c79ec9f418b1d71150b5a19f500c5ac7a6c9b02 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3199298 Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: David Stevens <stevensd@chromium.org> Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
20 lines
785 B
Text
20 lines
785 B
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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@include /usr/share/policy/crosvm/common_device.policy
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# Used to connect to wayland. arg0 == AF_UNIX && arg1 == SOCK_STREAM|SOCK_CLOEXEC
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socket: arg0 == 1 && arg1 == 0x80001 && arg2 == 0
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# arg1 == FIONBIO || arg1 == DMA_BUF_IOCTL_SYNC || arg1 == SYNC_IOC_FILE_INFO
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ioctl: arg1 == 0x5421 || arg1 == 0x40086200 || arg1 == 0xc0383e04
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connect: 1
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# Used for sharing memory with wayland. arg1 == MFD_CLOEXEC|MFD_ALLOW_SEALING
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memfd_create: arg1 == 3
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# Used to set of size new memfd
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ftruncate: 1
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# Used to determine shm size after recvmsg with fd
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lseek: 1
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open: return ENOENT
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openat: return ENOENT
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prctl: arg0 == PR_SET_NAME
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