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Added LinuxUpdateParam class for passing parameters to linux

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This commit is contained in:
Amit Mahajan
2009-10-13 15:02:44 +05:30
parent 61a0d5b60f
commit 86c3a7c176
3 changed files with 98 additions and 2 deletions
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5
config/cml/container_ruleset.template
View File

@@ -39,7 +39,7 @@ CONT%(cn)d_PAGER_TASK_START 'Container %(cn)d Task Address Space Region Start'
CONT%(cn)d_PAGER_TASK_END 'Container %(cn)d Task Address Space Region End'
CONT%(cn)d_PAGER_UTCB_START 'Container %(cn)d UTCB Mappings Region Start'
CONT%(cn)d_PAGER_UTCB_END 'Container %(cn)d UTCB Mappings Region End'
CONT%(cn)d_LINUX_ZRELADDR 'Container %(cn)d Linux ZRELADDR parameter'
CONT%(cn)d_LINUX_PAGE_OFFSET 'Container %(cn)d Linux PAGE_OFFSET Parameter'
CONT%(cn)d_LINUX_PHYS_OFFSET 'Container %(cn)d Linux PHYS_OFFSET Parameter'
CONT%(cn)d_LINUX_MAPSIZE 'Container %(cn)d Linux Initial Kernel Map Size Parameter'
@@ -53,7 +53,7 @@ default CONT%(cn)d_PAGER_TASK_START from 0x0
default CONT%(cn)d_PAGER_TASK_END from 0x0
default CONT%(cn)d_PAGER_UTCB_START from 0x0
default CONT%(cn)d_PAGER_UTCB_END from 0x0
default CONT%(cn)d_LINUX_ZRELADDR from 0x0
default CONT%(cn)d_LINUX_PAGE_OFFSET from 0x0
default CONT%(cn)d_LINUX_PHYS_OFFSET from 0x0
default CONT%(cn)d_LINUX_MAPSIZE from 0x0
@@ -146,6 +146,7 @@ menu cont%(cn)d_posix_pager_params
menu cont%(cn)d_linux_pager_params
CONT%(cn)d_LINUX_ZRELADDR@
CONT%(cn)d_LINUX_PAGE_OFFSET@
CONT%(cn)d_LINUX_PHYS_OFFSET@
CONT%(cn)d_LINUX_MAPSIZE@

3
config/configuration.py
View File

@@ -19,6 +19,7 @@ class Container:
self.pager_shm_region_end = 0
self.pager_utcb_region_start = 0
self.pager_utcb_region_end = 0
self.linux_zreladdr = 0
self.linux_page_offset = 0
self.linux_phys_offset = 0
self.linux_mapsize = 0
@@ -120,6 +121,8 @@ class configuration:
elif param[:len("LINUX_PHYS_OFFSET")] == "LINUX_PHYS_OFFSET":
self.containers[id].linux_phys_offset = int(val, 0)
self.containers[id].pager_lma += int(val, 0)
elif param[:len("LINUX_ZRELADDR")] == "LINUX_ZRELADDR":
self.containers[id].linux_zreladdr += int(val, 0)
elif re.match(r"(VIRT|PHYS){1}([0-9]){1}(_){1}(START|END){1}", param):
matchobj = re.match(r"(VIRT|PHYS){1}([0-9]){1}(_){1}(START|END){1}", param)
virtphys, regionidstr, discard1, startend = matchobj.groups()

92
scripts/linux/build_linux.py
View File

@@ -15,6 +15,7 @@ sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), PROJRELR
from config.projpaths import *
from config.configuration import *
from config.lib import *
LINUX_KERNEL_BUILDDIR = join(BUILDDIR, os.path.relpath(LINUX_KERNELDIR, PROJROOT))
@@ -27,6 +28,95 @@ def source_to_builddir(srcdir, id):
"cont" + str(id))
return join(BUILDDIR, cont_builddir)
class LinuxUpdateKernel:
def __init__(self, container):
self.list = (['MAGIC_SYSRQ', 'SET'],['DEBUG_KERNEL', 'SET'])
self.modify_kernel_config()
self.update_kernel_params(container)
# Replace line(having input_pattern) in filename with new_data
def replace_line(self, filename, input_pattern, new_data, prev_line):
with open(filename, 'r+') as f:
flag = 0
temp = 0
x = re.compile(input_pattern)
for line in f:
if '' != prev_line:
if temp == prev_line and re.match(x, line):
flag = 1
break
temp = line
else:
if re.match(x, line):
flag = 1
break
if flag == 0:
print 'Warning: No match found for the parameter'
return
else:
# Prevent recompilation in case kernel parameter is same
if new_data != line:
f.seek(0)
l = f.read()
# Need to truncate file because, size of contents to be
# written may be less than the size of original file.
f.seek(0)
f.truncate(0)
# Write back to file
f.write(l.replace(line, new_data))
def update_kernel_params(self, container):
# Update TEXT_START
file = join(LINUX_KERNELDIR, 'arch/arm/boot/compressed/Makefile')
param = str(conv_hex(container.linux_phys_offset))
new_data = ('ZTEXTADDR' + '\t' + ':= ' + param + '\n')
data_to_replace = "(ZTEXTADDR)(\t)(:= 0)"
prev_line = ''
self.replace_line(file, data_to_replace, new_data, prev_line)
# Update PHYS_OFFSET
file = join(LINUX_KERNELDIR, 'arch/arm/mach-versatile/include/mach/memory.h')
param = str(conv_hex(container.linux_phys_offset))
new_data = ('#define PHYS_OFFSET UL(' + param + ')\n')
data_to_replace = "(#define PHYS_OFFSET)"
prev_line = ''
self.replace_line(file, data_to_replace, new_data, prev_line)
# Update PAGE_OFFSET
file = join(LINUX_KERNELDIR, 'arch/arm/Kconfig')
param = str(conv_hex(container.linux_page_offset))
new_data = ('\t' + 'default ' + param + '\n')
data_to_replace = "(\t)(default )"
prev_line = ('\t'+'default 0x80000000 if VMSPLIT_2G' + '\n')
self.replace_line(file, data_to_replace, new_data, prev_line)
# Update ZRELADDR
file = join(LINUX_KERNELDIR, 'arch/arm/mach-versatile/Makefile.boot')
param = str(conv_hex(container.linux_zreladdr))
new_data = (' zreladdr-y' + '\t' + ':= ' + param + '\n')
data_to_replace = "(\s){3}(zreladdr-y)(\t)(:= )"
prev_line = ''
self.replace_line(file, data_to_replace, new_data, prev_line)
def modify_kernel_config(self):
file = join(LINUX_KERNELDIR, 'arch/arm/configs/versatile_defconfig')
for i in self.list:
param = 'CONFIG_' + i[0]
prev_line = ''
if i[1] == 'SET':
data_to_replace = ('# ' + param)
new_data = (param + '=y' + '\n')
else:
data_to_replace = param
new_data = ('# ' + param + ' is not set' + '\n')
self.replace_line(file, data_to_replace, new_data, prev_line)
class LinuxBuilder:
def __init__(self, pathdict, container):
@@ -42,10 +132,12 @@ class LinuxBuilder:
self.linux_S_out = join(self.LINUX_KERNEL_BUILDDIR, "linux.S")
self.linux_elf_out = join(self.LINUX_KERNEL_BUILDDIR, "linux.elf")
self.container = container
self.kernel_binary_image = \
join(os.path.relpath(self.LINUX_KERNEL_BUILDDIR, LINUX_KERNELDIR), \
"arch/arm/boot/Image")
self.kernel_image = None
self.kernel_updater = LinuxUpdateKernel(self.container)
def build_linux(self):
print '\nBuilding the linux kernel...'