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runqemu: Allow the user to specity no kernel or rootFS 

In some cirsumstances the user doesn't want to supply a kernel, rootFS
or DTB to QEMU. This will occur more now that QEMU supports loading
images using a '-device loader' method.

Allow users to specify 'none' for QB_DEFAULT_FSTYPE or QB_DEFAULT_KERNEL
to avoid supplying these options to QEMU.

(From OE-Core rev: 2cc01c4e46b05b7ffcc8a11e7ebde6c43256c3c3)

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Alistair Francis 2017-01-10 13:04:00 -08:00 committed by Richard Purdie
parent 4cac4f194e
commit 7f013f2a54
1 changed files with 8 additions and 1 deletions
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9
scripts/runqemu
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@ -453,7 +453,7 @@ class BaseConfig(object):
def check_rootfs(self):
"""Check and set rootfs"""
if self.fstype == 'nfs':
if self.fstype == 'nfs' or self.fstype == "none":
return
if self.rootfs and not os.path.exists(self.rootfs):
@ -481,6 +481,10 @@ class BaseConfig(object):
# QB_DEFAULT_KERNEL is always a full file path
kernel_name = os.path.basename(self.get('QB_DEFAULT_KERNEL'))
# The user didn't want a kernel to be loaded
if kernel_name == "none":
return
deploy_dir_image = self.get('DEPLOY_DIR_IMAGE')
if not self.kernel:
kernel_match_name = "%s/%s" % (deploy_dir_image, kernel_name)
@ -858,6 +862,9 @@ class BaseConfig(object):
k_root = '/dev/nfs nfsroot=%s:%s,%s' % (self.nfs_server, self.nfs_dir, self.unfs_opts)
self.kernel_cmdline = 'root=%s rw highres=off' % k_root
if self.fstype == 'none':
self.rootfs_options = ''
self.set('ROOTFS_OPTIONS', self.rootfs_options)
def guess_qb_system(self):