2022-09-13 17:55:17 +00:00
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# Copyright 2022 The ChromiumOS Authors
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crosvm: add "devices" command
Add a new `devices` command to start one or several jailed vhost-user
devices.
`devices` improves upon `device` in the following ways:
* Several devices can be created in one command,
* Devices can be configured with the same arguments as the `run` command,
* The created devices are jailed similarly to the `run` command.
This CL does not enable any device to be started yet, it only does the
plumbing to allow it. Follow-up CLs will start adding devices to this
command.
With the following CL, the serial device can be tested as follows:
$ ./crosvm devices --serial hardware=virtio-console,console,stdin,type=stdout,earlycon,vhost=/tmp/vu-serial
The parameters of the `serial` argument are the same as with `crosvm
run`, with the exception that the `vhost` parameter needs to be provided
to inform where the listener should await its front-end connection.
`vhost` can either take a PCI device address, in which case VVU will be
used, or a socket path for regular vhost-user.
Using the example above, a VMM can connect to /tmp/vu-serial and use it
as a console device.
BUG=b:218223240
TEST=./crosvm devices --serial hardware=virtio-console,console,stdin,type=stdout,earlycon,vhost=/tmp/vu-serial
gives us a working vhost-user serial device.
TEST=Same command as above ran inside a VVU device VM with vhost=<PCI address of VVU device>
gives us a working VVU serial device.
Change-Id: I07d17dca2d02bd180b1667810ef92516ee026839
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3762974
Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Commit-Queue: Alexandre Courbot <acourbot@chromium.org>
2022-06-27 08:29:21 +00:00
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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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# Policy file for the vhost-user transport over a socket.
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# FIONBIO: for setting non-blocking mode over the socket.
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# TCGETS/TCSETS: used on FD 0, probably for serial.
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# b/239779171: try moving this to the serial device once we can extend ioctls across policy files.
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ioctl: arg1 == FIONBIO || arg1 == TCGETS || arg1 == TCSETS
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# For accepting a client connection over the socket.
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2022-07-12 07:50:56 +00:00
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accept4: 1
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