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https://chromium.googlesource.com/crosvm/crosvm
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7621d910f5
Discard and Write Zeroes commands have been added to the virtio block
specification:
88c8553838
Implement both commands using the WriteZeroes trait.
BUG=chromium:850998
TEST=fstrim within termina on a writable qcow image
Change-Id: I33e54e303202328c10f7f2d6e69ab19f419f3998
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1188680
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
40 lines
821 B
Text
40 lines
821 B
Text
# Copyright 2017 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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close: 1
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dup: 1
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dup2: 1
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exit_group: 1
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fallocate: 1
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fdatasync: 1
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fstat: 1
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fsync: 1
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ftruncate: 1
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futex: 1
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lseek: 1
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# Disallow mmap with PROT_EXEC set. The syntax here doesn't allow bit
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# negation, thus the manually negated mask constant.
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mmap: arg2 in 0xfffffffb
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mprotect: arg2 in 0xfffffffb
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# Allow MADV_DONTDUMP only.
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madvise: arg2 == 0x00000010
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munmap: 1
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read: 1
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recvfrom: 1
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sched_getaffinity: 1
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set_robust_list: 1
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sigaltstack: 1
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# Disallow clone's other than new threads.
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clone: arg0 & 0x00010000
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write: 1
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eventfd2: 1
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poll: 1
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ppoll: 1
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getpid: 1
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# Allow PR_SET_NAME only.
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prctl: arg0 == 15
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restart_syscall: 1
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epoll_create1: 1
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epoll_ctl: 1
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epoll_wait: 1
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