qemuboot-x86.inc: allow overwrite of QB_CPU

To test nested kvm with qemu QB_CPU* needs to be modified.
E.g. set to "-cpu Haswell-noTSX-IBRS,vmx=on"

This allows to overwrite this from local.conf etc.

Signed-off-by: Thomas Roos <throos@amazon.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/meta/conf/machine/include/x86/qemuboot-x86.inc b/meta/conf/machine/include/x86/qemuboot-x86.inc
index dd7e7c93841330e45731dd745c573a2036c5fed0..6ae03633aea4cb5751e3569f1dc78626c6eae3d6 100644 (file)
--- a/meta/conf/machine/include/x86/qemuboot-x86.inc
+++ b/meta/conf/machine/include/x86/qemuboot-x86.inc
@@ -1,11 +1,11 @@
 # For runqemu
 IMAGE_CLASSES += "qemuboot"
 QB_SMP ?= "-smp 4"
-QB_CPU:x86 = "-cpu IvyBridge -machine q35,i8042=off"
-QB_CPU_KVM:x86 = "-cpu IvyBridge -machine q35,i8042=off"
+QB_CPU:x86 ?= "-cpu IvyBridge -machine q35,i8042=off"
+QB_CPU_KVM:x86 ?= "-cpu IvyBridge -machine q35,i8042=off"
 
-QB_CPU:x86-64 = "-cpu IvyBridge -machine q35,i8042=off"
-QB_CPU_KVM:x86-64 = "-cpu IvyBridge -machine q35,i8042=off"
+QB_CPU:x86-64 ?= "-cpu IvyBridge -machine q35,i8042=off"
+QB_CPU_KVM:x86-64 ?= "-cpu IvyBridge -machine q35,i8042=off"
 
 QB_AUDIO_DRV = "alsa"
 QB_AUDIO_OPT = "-device AC97"