runqemu: add qmp socket support

Add support for qmp sockets and defaults to unix:qmp.sock if unspecified

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Eilís 'pidge' Ní Fhlannagáin <pidge@baylibre.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Backported from master: 380631797f0d63124a8c21efa93ab672dbd79283
Qemu throws many warnings without qmp and many runtime tests fail
without this patch also on kirkstone.

Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

diff --git a/scripts/runqemu b/scripts/runqemu
index 81d95133b6df9ad5f0d7c972e9b0b0e00c92e2ca..ba7c1b2461dfe21862a19f146e6ab389a0cb816b 100755 (executable)
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -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)
     publicvnc - enable a VNC server open to all hosts
     audio - enable audio
+    qmp=<path> - create a QMP socket (defaults to unix:qmp.sock if unspecified)
     [*/]ovmf* - OVMF firmware file or base name for booting with UEFI
   tcpserial=<port> - specify tcp serial port number
   qemuparams=<xyz> - specify custom parameters to QEMU
@@ -216,6 +217,7 @@ class BaseConfig(object):
         self.cleaned = False
         # Files to cleanup after run
         self.cleanup_files = []
+        self.qmp = None
 
     def acquire_taplock(self, error=True):
         logger.debug("Acquiring lockfile %s..." % self.taplock)
@@ -512,6 +514,10 @@ to your build configuration.
             elif arg == 'publicvnc':
                 self.publicvnc = True
                 self.qemu_opt_script += ' -vnc :0'
+            elif arg == "qmp":
+                self.qmp = "unix:qmp.sock"
+            elif arg.startswith("qmp="):
+                self.qmp = arg[len('qmp='):]
             elif arg.startswith('tcpserial='):
                 self.tcpserial_portnum = '%s' % arg[len('tcpserial='):]
             elif arg.startswith('qemuparams='):
@@ -1332,6 +1338,10 @@ to your build configuration.
             raise RunQemuError("Failed to boot, QB_SYSTEM_NAME is NULL!")
         self.qemu_system = qemu_system
 
+    def setup_qmp(self):
+        if self.qmp:
+            self.qemu_opt += " -qmp %s,server,nowait" % self.qmp
+
     def setup_vga(self):
         if self.nographic == True:
             if self.sdl == True:
@@ -1462,6 +1472,7 @@ to your build configuration.
         if self.snapshot:
             self.qemu_opt += " -snapshot"
 
+        self.setup_qmp()
         self.setup_serial()
         self.setup_vga()