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runqemu: add an option to enable guest-agent virtio device

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Add support to the runqemu script for a new option, 'guestagent', that
enables the virtio serial port for host-to-guest communication.

(From OE-Core rev: 21a1e52079089c5bbeee8ffc9c504471f4a8732a)

Signed-off-by: Brenda Streiff <brenda.streiff@ni.com>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Clément Péron
2023-03-10 19:54:23 +01:00
committed by Richard Purdie
parent 1c01cbaed5
commit 1f6b7ec6a4
1 changed files with 14 additions and 0 deletions
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scripts/runqemu
+14
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@@ -82,6 +82,7 @@ of the following environment variables (in any order):
kvm-vhost - enable KVM with vhost when running x86/x86_64 (VT-capable CPU required) kvm-vhost - enable KVM with vhost when running x86/x86_64 (VT-capable CPU required)
publicvnc - enable a VNC server open to all hosts publicvnc - enable a VNC server open to all hosts
audio - enable audio audio - enable audio
guestagent - enable guest agent communication
[*/]ovmf* - OVMF firmware file or base name for booting with UEFI [*/]ovmf* - OVMF firmware file or base name for booting with UEFI
tcpserial=<port> - specify tcp serial port number tcpserial=<port> - specify tcp serial port number
qemuparams=<xyz> - specify custom parameters to QEMU qemuparams=<xyz> - specify custom parameters to QEMU
@@ -216,6 +217,8 @@ class BaseConfig(object):
self.cleaned = False self.cleaned = False
# Files to cleanup after run # Files to cleanup after run
self.cleanup_files = [] self.cleanup_files = []
self.guest_agent = False
self.guest_agent_sockpath = '/tmp/qga.sock'
def acquire_taplock(self, error=True): def acquire_taplock(self, error=True):
logger.debug("Acquiring lockfile %s..." % self.taplock) logger.debug("Acquiring lockfile %s..." % self.taplock)
@@ -526,6 +529,10 @@ class BaseConfig(object):
elif arg == 'publicvnc': elif arg == 'publicvnc':
self.publicvnc = True self.publicvnc = True
self.qemu_opt_script += ' -vnc :0' self.qemu_opt_script += ' -vnc :0'
elif arg == 'guestagent':
self.guest_agent = True
elif arg.startswith('guestagent-sockpath='):
self.guest_agent_sockpath = '%s' % arg[len('guestagent-sockpath='):]
elif arg.startswith('tcpserial='): elif arg.startswith('tcpserial='):
self.tcpserial_portnum = '%s' % arg[len('tcpserial='):] self.tcpserial_portnum = '%s' % arg[len('tcpserial='):]
elif arg.startswith('qemuparams='): elif arg.startswith('qemuparams='):
@@ -1375,6 +1382,12 @@ class BaseConfig(object):
except FileNotFoundError: except FileNotFoundError:
raise RunQemuError("/dev/dri directory does not exist; no render nodes available on this machine. %s" %(render_hint)) raise RunQemuError("/dev/dri directory does not exist; no render nodes available on this machine. %s" %(render_hint))
def setup_guest_agent(self):
if self.guest_agent == True:
self.qemu_opt += ' -chardev socket,path=' + self.guest_agent_sockpath + ',server,nowait,id=qga0 '
self.qemu_opt += ' -device virtio-serial '
self.qemu_opt += ' -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 '
def setup_vga(self): def setup_vga(self):
if self.nographic == True: if self.nographic == True:
if self.sdl == True: if self.sdl == True:
@@ -1506,6 +1519,7 @@ class BaseConfig(object):
if self.snapshot: if self.snapshot:
self.qemu_opt += " -snapshot" self.qemu_opt += " -snapshot"
self.setup_guest_agent()
self.setup_serial() self.setup_serial()
self.setup_vga() self.setup_vga()