machine-xilinx-qemu.inc: Move common runqemu setup to include

Move the common setup for QEMU machines into an include call
'machine-xilinx-qemu.inc'. This include is added to any machine that has
a QEMU model. It sets up common QB_* values as well as inheriting the
qemuboot class and adding the EXTRA_IMAGEDEPENDS on qemu-native.

This include also has helper functions to automatically determine the
DTB from KERNEL_DEVICETREE/MACHINE_DEVICETREE and automatically setup the
'console=' kernel command line based on SERIAL_CONSOLE.

Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/conf/machine/include/machine-xilinx-qemu.inc b/conf/machine/include/machine-xilinx-qemu.inc
new file mode 100644
index 00000000..25bf7dec
--- /dev/null
+++ b/conf/machine/include/machine-xilinx-qemu.inc
@@ -0,0 +1,35 @@
+EXTRA_IMAGEDEPENDS += "qemu-native qemu-helper-native"
+
+def qemu_default_dtb(d):
+    if d.getVar("MACHINE_DEVICETREE", True):
+        dtbs = d.getVar("MACHINE_DEVICETREE", True).split(" ")
+        dtbs = [os.path.splitext(os.path.basename(d)) for d in dtbs]
+        dtbs = ["%s.dtb" % name for name, ext in dtbs if ext == ".dts" or ext == ".dtb"]
+        return dtbs[0] if dtbs else ""
+    elif d.getVar("KERNEL_DEVICETREE", True):
+        dtbs = d.getVar("KERNEL_DEVICETREE", True).split(" ")
+        dtbs = [os.path.basename(d) for d in dtbs]
+        return d.getVar("KERNEL_IMAGETYPE", True) + "-" + (dtbs[0] if dtbs else "")
+    return ""
+
+def qemu_default_serial(d):
+    if d.getVar("SERIAL_CONSOLE", True):
+        speed, console = d.getVar("SERIAL_CONSOLE", True).split(" ", 1)
+        return "console=%s,%s earlyprintk" % (console, speed)
+    return ""
+
+def qemu_target_binary(d):
+    ta = d.getVar("TARGET_ARCH", True)
+    if ta == "microblazeeb":
+        ta = "microblaze"
+    elif ta == "arm":
+        ta = "aarch64"
+    return "qemu-system-%s" % ta
+
+# For runqemu, default setup across all machines in meta-xilinx
+IMAGE_CLASSES += "qemuboot"
+QB_SYSTEM_NAME ?= "${@qemu_target_binary(d)}"
+QB_DEFAULT_FSTYPE ?= "cpio"
+QB_DTB ?= "${@qemu_default_dtb(d)}"
+QB_KERNEL_CMDLINE_APPEND ?= "${@qemu_default_serial(d)}"
+