diff --git a/poky/meta/classes/qemuboot.bbclass b/poky/meta/classes/qemuboot.bbclass
index 4b7532b..1f8012e 100644
--- a/poky/meta/classes/qemuboot.bbclass
+++ b/poky/meta/classes/qemuboot.bbclass
@@ -72,6 +72,9 @@
 #                      Can be used to automatically determine the image from the other variables
 #                      but define things link 'bootindex' when booting from EFI or 'readonly' when using squashfs
 #                      without the need to specify a dedicated qemu configuration
+#
+# QB_GRAPHICS: QEMU video card type (e.g. "-vga std")
+#
 # Usage:
 # IMAGE_CLASSES += "qemuboot"
 # See "runqemu help" for more info
@@ -86,6 +89,7 @@
 QB_CMDLINE_IP_SLIRP ?= "ip=dhcp"
 QB_CMDLINE_IP_TAP ?= "ip=192.168.7.@CLIENT@::192.168.7.@GATEWAY@:255.255.255.0"
 QB_ROOTFS_EXTRA_OPT ?= ""
+QB_GRAPHICS ?= ""
 
 # This should be kept align with ROOT_VM
 QB_DRIVE_TYPE ?= "/dev/sd"
@@ -99,7 +103,7 @@
     build_vars = ['MACHINE', 'TUNE_ARCH', 'DEPLOY_DIR_IMAGE',
                 'KERNEL_IMAGETYPE', 'IMAGE_NAME', 'IMAGE_LINK_NAME',
                 'STAGING_DIR_NATIVE', 'STAGING_BINDIR_NATIVE',
-                'STAGING_DIR_HOST']
+                'STAGING_DIR_HOST', 'SERIAL_CONSOLES']
     return build_vars + [k for k in d.keys() if k.startswith('QB_')]
 
 do_write_qemuboot_conf[vardeps] += "${@' '.join(qemuboot_vars(d))}"