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runqemu: add QB_ROOTFS_EXTRA_OPT parameter

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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.

(From OE-Core rev: 1a5cb1bd56be2b784208516a7c73c49906c7022f)

Signed-off-by: Konrad Weihmann <kweihmann@outlook.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit e9b8c194636cb5505774a2a71bf54450580dd5b8)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Konrad Weihmann
2020-04-15 20:39:31 +02:00
committed by Richard Purdie
parent c330f61704
commit 81c46e46a8
2 changed files with 13 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta/classes/qemuboot.bbclass
+5
View File
@@ -65,6 +65,10 @@
# " -device virtio-serial-device -chardev socket,id=virtcon,port=@PORT@,host=127.0.0.1 -device virtconsole,chardev=virtcon" # " -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. # 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: # Usage:
# IMAGE_CLASSES += "qemuboot" # IMAGE_CLASSES += "qemuboot"
# See "runqemu help" for more info # 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_NETWORK_DEVICE ?= "-device virtio-net-pci,netdev=net0,mac=@MAC@"
QB_CMDLINE_IP_SLIRP ?= "ip=dhcp" QB_CMDLINE_IP_SLIRP ?= "ip=dhcp"
QB_CMDLINE_IP_TAP ?= "ip=192.168.7.@CLIENT@::192.168.7.@GATEWAY@:255.255.255.0" 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 # This should be kept align with ROOT_VM
QB_DRIVE_TYPE ?= "/dev/sd" QB_DRIVE_TYPE ?= "/dev/sd"
scripts/runqemu
+8 -3
View File
@@ -1196,6 +1196,10 @@ class BaseConfig(object):
else: else:
self.rootfs_options = '-drive file=%s,if=virtio,format=%s' % (self.rootfs, rootfs_format) self.rootfs_options = '-drive file=%s,if=virtio,format=%s' % (self.rootfs, rootfs_format)
qb_rootfs_extra_opt = self.get("QB_ROOTFS_EXTRA_OPT")
if qb_rootfs_extra_opt and not qb_rootfs_extra_opt.startswith(","):
qb_rootfs_extra_opt = "," + qb_rootfs_extra_opt
if self.fstype in ('cpio.gz', 'cpio'): if self.fstype in ('cpio.gz', 'cpio'):
self.kernel_cmdline = 'root=/dev/ram0 rw debugshell' self.kernel_cmdline = 'root=/dev/ram0 rw debugshell'
self.rootfs_options = '-initrd %s' % self.rootfs self.rootfs_options = '-initrd %s' % self.rootfs
@@ -1208,14 +1212,15 @@ class BaseConfig(object):
drive_type = self.get('QB_DRIVE_TYPE') drive_type = self.get('QB_DRIVE_TYPE')
if drive_type.startswith("/dev/sd"): if drive_type.startswith("/dev/sd"):
logger.info('Using scsi drive') logger.info('Using scsi drive')
vm_drive = '-drive if=none,id=hd,file=%s,format=%s -device virtio-scsi-pci,id=scsi -device scsi-hd,drive=hd' \ vm_drive = '-drive if=none,id=hd,file=%s,format=%s -device virtio-scsi-pci,id=scsi -device scsi-hd,drive=hd%s' \
% (self.rootfs, rootfs_format) % (self.rootfs, rootfs_format, qb_rootfs_extra_opt)
elif drive_type.startswith("/dev/hd"): elif drive_type.startswith("/dev/hd"):
logger.info('Using ide drive') logger.info('Using ide drive')
vm_drive = "-drive file=%s,format=%s" % (self.rootfs, rootfs_format) vm_drive = "-drive file=%s,format=%s" % (self.rootfs, rootfs_format)
elif drive_type.startswith("/dev/vdb"): elif drive_type.startswith("/dev/vdb"):
logger.info('Using block virtio drive'); logger.info('Using block virtio drive');
vm_drive = '-drive id=disk0,file=%s,if=none,format=%s -device virtio-blk-device,drive=disk0' % (self.rootfs, rootfs_format) vm_drive = '-drive id=disk0,file=%s,if=none,format=%s -device virtio-blk-device,drive=disk0%s' \
% (self.rootfs, rootfs_format,qb_rootfs_extra_opt)
else: else:
# virtio might have been selected explicitly (just use it), or # virtio might have been selected explicitly (just use it), or
# is used as fallback (then warn about that). # is used as fallback (then warn about that).