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runqemu: Allow the user to override the device tree option

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Update the runqemu script to allow the user to specify a device tree
to boot when calling runqemu.

This involves creating a seperate check_dtb() function incase the user
has specified 'none' for the kernel but still wants a device tree.

(From OE-Core rev: 867ac1370b294bfd1ee31f94abb63688f77081a1)

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Ben Levinsky <ben.levinsky@xilinx.com>
Cc: Ben Levinsky <ben.levinsky@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
2017-11-21 16:43:57 -08:00
committed by Richard Purdie
parent 7159b281e7
commit fae2e2f42d
1 changed files with 14 additions and 1 deletions
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15
scripts/runqemu
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@@ -69,6 +69,7 @@ Usage: you can run this script with any valid combination
of the following environment variables (in any order):
KERNEL - the kernel image file to use
ROOTFS - the rootfs image file or nfsroot directory to use
DEVICE_TREE - the device tree blob to use
MACHINE - the machine name (optional, autodetected from KERNEL filename if unspecified)
Simplified QEMU command-line options can be passed with:
nographic - disable video console
@@ -178,6 +179,7 @@ class BaseConfig(object):
self.env_vars = ('MACHINE',
'ROOTFS',
'KERNEL',
'DEVICE_TREE',
'DEPLOY_DIR_IMAGE',
'OE_TMPDIR',
'OECORE_NATIVE_SYSROOT',
@@ -579,7 +581,7 @@ class BaseConfig(object):
raise RunQemuError("Can't find OVMF firmware: %s" % ovmf)
def check_kernel(self):
"""Check and set kernel, dtb"""
"""Check and set kernel"""
# The vm image doesn't need a kernel
if self.fstype in self.vmtypes:
return
@@ -608,8 +610,18 @@ class BaseConfig(object):
if not os.path.exists(self.kernel):
raise RunQemuError("KERNEL %s not found" % self.kernel)
def check_dtb(self):
"""Check and set dtb"""
# Did the user specify a device tree?
if self.get('DEVICE_TREE'):
self.dtb = self.get('DEVICE_TREE')
if not os.path.exists(self.dtb):
raise RunQemuError('Specified DTB not found: %s' % self.dtb)
return
dtb = self.get('QB_DTB')
if dtb:
deploy_dir_image = self.get('DEPLOY_DIR_IMAGE')
cmd_match = "%s/%s" % (deploy_dir_image, dtb)
cmd_startswith = "%s/%s*" % (deploy_dir_image, dtb)
cmd_wild = "%s/*.dtb" % deploy_dir_image
@@ -678,6 +690,7 @@ class BaseConfig(object):
self.check_rootfs()
self.check_ovmf()
self.check_kernel()
self.check_dtb()
self.check_biosdir()
self.check_mem()
self.check_tcpserial()