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authorKonrad Weihmann <kweihmann@outlook.com>2020-04-15 20:39:31 +0200
committerRichard Purdie <richard.purdie@linuxfoundation.org>2020-04-24 14:07:54 +0100
commite9b8c194636cb5505774a2a71bf54450580dd5b8 (patch)
tree173284c97a4f10e96522a21ad7bcc00021d29d89 /meta
parentbeb17254f019a7f72c9ab41298da7bcee6ad8ce8 (diff)
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runqemu: add QB_ROOTFS_EXTRA_OPT parameter
Content of the optional parameter will be appended to the rootfs-device in the qemu configuration, in case QB_ROOTFS_OPT is not specified. By default this is empty. Example use cases are: Defining 'readonly' when using squashfs, so multiple instances of qemu can share the same base image, something that cannot be done by just specifying 'snapshot'. Defining 'bootindex=0' which helps to get past the EFI shell in ovmf-binary. This also enables the use case of running WIC images with EFI bootloader through the testimage.bbclass. Signed-off-by: Konrad Weihmann <kweihmann@outlook.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta')
-rw-r--r--meta/classes/qemuboot.bbclass5
1 files changed, 5 insertions, 0 deletions
diff --git a/meta/classes/qemuboot.bbclass b/meta/classes/qemuboot.bbclass
index 68f7a03619..3162e7a8eb 100644
--- a/meta/classes/qemuboot.bbclass
+++ b/meta/classes/qemuboot.bbclass
@@ -65,6 +65,10 @@
# " -device virtio-serial-device -chardev socket,id=virtcon,port=@PORT@,host=127.0.0.1 -device virtconsole,chardev=virtcon"
# Note, runqemu will replace "@PORT@" with the port number which is used.
#
+# QB_ROOTFS_EXTRA_OPT: extra options to be appended to the rootfs device in case there is none specified by QB_ROOTFS_OPT.
+# 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
# Usage:
# IMAGE_CLASSES += "qemuboot"
# See "runqemu help" for more info
@@ -77,6 +81,7 @@ QB_OPT_APPEND ?= "-show-cursor"
QB_NETWORK_DEVICE ?= "-device virtio-net-pci,netdev=net0,mac=@MAC@"
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 ?= ""
# This should be kept align with ROOT_VM
QB_DRIVE_TYPE ?= "/dev/sd"