Tony Breeds
2006-Oct-20 03:21 UTC
[Xen-devel] [PATCH 5/10][TOOLS][XM-TEST] Refactor code to encapsulate architecture decisions in one place
Refactor code to encapsulate architecture decisions in one place.
Also includes some whitespace fixes.
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
---
tools/xm-test/lib/XmTestLib/XenDomain.py | 73 +++------------
tools/xm-test/lib/XmTestLib/arch.py | 102 +++++++++++++++++++++
tools/xm-test/lib/XmTestReport/OSReport.py | 10 --
tools/xm-test/lib/XmTestReport/arch.py | 42 ++++++++
4 files changed, 161 insertions(+), 66 deletions(-)
--- a/tools/xm-test/lib/XmTestLib/XenDomain.py Thu Oct 19 11:57:29 2006 +1000
+++ b/tools/xm-test/lib/XmTestLib/XenDomain.py Thu Oct 19 11:58:17 2006 +1000
@@ -20,33 +20,22 @@
import sys
import commands
-import os
import re
import time
from Xm import *
+from arch import *
from Test import *
from config import *
from Console import *
from XenDevice import *
-BLOCK_ROOT_DEV = "hda"
-
-def getDeviceModel():
- """Get the path to the device model based on
- the architecture reported in uname"""
- arch = os.uname()[4]
- if re.search("64", arch):
- return "/usr/lib64/xen/bin/qemu-dm"
- else:
- return "/usr/lib/xen/bin/qemu-dm"
def getDefaultKernel():
- """Get the path to the default DomU kernel"""
- dom0Ver = commands.getoutput("uname -r");
- domUVer = dom0Ver.replace("xen0", "xenU");
-
- return "/boot/vmlinuz-" + domUVer;
+ return arch.getDefaultKernel()
+
+def getRdPath():
+ return arch.getRdPath()
def getUniqueName():
"""Get a uniqueish name for use in a
domain"""
@@ -55,43 +44,8 @@ def getUniqueName():
test_name = re.sub("\.test", "", test_name)
test_name = re.sub("[\/\.]", "", test_name)
name = "%s-%i" % (test_name, unixtime)
-
+
return name
-
-def getRdPath():
- rdpath = os.environ.get("RD_PATH")
- if not rdpath:
- rdpath = "../../ramdisk"
- rdpath = os.path.abspath(rdpath)
-
- return rdpath
-
-ParavirtDefaults = {"memory" : 64,
- "vcpus" : 1,
- "kernel" : getDefaultKernel(),
- "root" : "/dev/ram0",
- "ramdisk" : getRdPath() +
"/initrd.img"
- }
-HVMDefaults = {"memory" : 64,
- "vcpus" : 1,
- "acpi" : 0,
- "apic" : 0,
- "disk" :
["file:%s/disk.img,ioemu:%s,w!" %
- (getRdPath(), BLOCK_ROOT_DEV)],
- "kernel" :
"/usr/lib/xen/boot/hvmloader",
- "builder" : "hvm",
- "sdl" : 0,
- "vnc" : 0,
- "vncviewer" : 0,
- "nographic" : 1,
- "serial" : "pty",
- "device_model" : getDeviceModel()
- }
-
-if ENABLE_HVM_SUPPORT:
- configDefaults = HVMDefaults
-else:
- configDefaults = ParavirtDefaults
class XenConfig:
"""An object to help create a xen-compliant config
file"""
@@ -140,7 +94,8 @@ class XenConfig:
def setOpt(self, name, value):
"""Set an option in the config"""
- if name in self.opts.keys() and isinstance(self.opts[name], list) and
not isinstance(value, list):
+ if name in self.opts.keys() and isinstance(self.opts[name] ,
+ list) and not isinstance(value, list):
self.opts[name] = [value]
else:
self.opts[name] = value
@@ -177,7 +132,7 @@ class DomainError(Exception):
self.errorcode = int(errorcode)
except Exception, e:
self.errorcode = -1
-
+
def __str__(self):
return str(self.msg)
@@ -199,7 +154,7 @@ class XenDomain:
self.devices = {}
self.netEnv = "bridge"
- # Set domain type, either PV for ParaVirt domU or HVM for
+ # Set domain type, either PV for ParaVirt domU or HVM for
# FullVirt domain
if ENABLE_HVM_SUPPORT:
self.type = "HVM"
@@ -332,7 +287,8 @@ class XenDomain:
class XmTestDomain(XenDomain):
- def __init__(self, name=None, extraConfig=None, baseConfig=configDefaults):
+ def __init__(self, name=None, extraConfig=None,
+ baseConfig=arch.configDefaults):
"""Create a new xm-test domain
@param name: The requested domain name
@param extraConfig: Additional configuration options
@@ -351,11 +307,12 @@ class XmTestDomain(XenDomain):
XenDomain.__init__(self, config.getOpt("name"),
config=config)
def minSafeMem(self):
- return 32
+ return arch.minSafeMem
class XmTestNetDomain(XmTestDomain):
- def __init__(self, name=None, extraConfig=None, baseConfig=configDefaults):
+ def __init__(self, name=None, extraConfig=None,
+ baseConfig=arch.configDefaults):
"""Create a new xm-test domain with one network device
@param name: The requested domain name
@param extraConfig: Additional configuration options
diff -r 8c17d10f39c9 -r 413d8625debe tools/xm-test/lib/XmTestReport/OSReport.py
--- a/tools/xm-test/lib/XmTestReport/OSReport.py Thu Oct 19 11:57:29 2006 +1000
+++ b/tools/xm-test/lib/XmTestReport/OSReport.py Thu Oct 19 11:58:17 2006 +1000
@@ -29,6 +29,7 @@ import os
import os
import commands
import sys
+import arch
class Machine:
@@ -89,8 +90,6 @@ class Machine:
self.values = {}
self.errors = 0
- cpuValues = {"model_name" : "Unknown",
- "flags" : "Unknown"}
xenValues = {"nr_cpus" : "Unknown",
"nr_nodes" : "Unknown",
"sockets_per_node" : "Unknown",
@@ -100,12 +99,7 @@ class Machine:
"total_memory" : "Unknown"}
xen = self.__getXenInfo(xenValues)
- cpu = self.__getCpuInfo(cpuValues)
-
- if cpu["model_name"] == "Unknown":
- cpuValues={"arch" : "Unknown",
- "features": "Unknown"}
- cpu=self.__getCpuInfo(cpuValues)
+ cpu = self.__getCpuInfo(arch.cpuValues)
for k in xen.keys():
self.values[k] = xen[k]
diff -r 8c17d10f39c9 -r 413d8625debe tools/xm-test/lib/XmTestLib/arch.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/xm-test/lib/XmTestLib/arch.py Thu Oct 19 11:58:17 2006 +1000
@@ -0,0 +1,102 @@
+#!/usr/bin/python
+"""
+ arch.py - Encapsulate all logic regarding what type of hardware xen
+ is running on to make adding new platforms easier.
+
+ Copyright (C) 2006 Tony Breeds IBM Corporation
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; under version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+"""
+
+import os
+import re
+import config
+import commands
+
+BLOCK_ROOT_DEV = "hda"
+
+# This isn''t truly platform related but it makes the code tidier
+def getRdPath():
+ """Locate the full path to ramdisks needed by
domUs"""
+ rdpath = os.environ.get("RD_PATH")
+ if not rdpath:
+ rdpath = "../../ramdisk"
+ rdpath = os.path.abspath(rdpath)
+
+ return rdpath
+
+# Begin: Intel ia32 and ia64 as well as AMD 32-bit and 64-bit processors
+def ia_minSafeMem():
+ return 32
+
+def ia_getDeviceModel():
+ """Get the path to the device model based on
+ the architecture reported in uname"""
+ architecture = os.uname()[4]
+ if re.search("64", architecture):
+ return "/usr/lib64/xen/bin/qemu-dm"
+ else:
+ return "/usr/lib/xen/bin/qemu-dm"
+
+def ia_getDefaultKernel():
+ """Get the path to the default DomU kernel"""
+ dom0Ver = commands.getoutput("uname -r");
+ domUVer = dom0Ver.replace("xen0", "xenU");
+
+ return "/boot/vmlinuz-" + domUVer;
+
+ia_ParavirtDefaults = {"memory" : 64,
+ "vcpus" : 1,
+ "kernel" : ia_getDefaultKernel(),
+ "root" : "/dev/ram0",
+ "ramdisk" : getRdPath() +
"/initrd.img",
+}
+ia_HVMDefaults = {"memory" : 64,
+ "vcpus" : 1,
+ "acpi" : 0,
+ "apic" : 0,
+ "disk" :
["file:%s/disk.img,ioemu:%s,w!" %
+ (getRdPath(), BLOCK_ROOT_DEV)],
+ "kernel" :
"/usr/lib/xen/boot/hvmloader",
+ "builder" : "hvm",
+ "sdl" : 0,
+ "vnc" : 0,
+ "vncviewer" : 0,
+ "nographic" : 1,
+ "serial" : "pty",
+ "device_model" : ia_getDeviceModel(),
+}
+# End : Intel ia32 and ia64 as well as AMD 32-bit and 64-bit processors
+
+"""Convert from uname specification to a more general
platform."""
+_uname_to_arch_map = {
+ "i386" : "x86",
+ "i486" : "x86",
+ "i586" : "x86",
+ "i686" : "x86",
+ "ia64" : "ia64",
+}
+
+# Lookup current platform.
+_arch = _uname_to_arch_map.get(os.uname()[4], "Unknown")
+if _arch == "x86" or _arch == "ia64":
+ minSafeMem = ia_minSafeMem
+ getDefaultKernel = ia_getDefaultKernel
+ if config.ENABLE_HVM_SUPPORT:
+ configDefaults = ia_HVMDefaults
+ else:
+ configDefaults = ia_ParavirtDefaults
+else:
+ raise ValueError, "Unknown architecture!"
diff -r 8c17d10f39c9 -r 413d8625debe tools/xm-test/lib/XmTestReport/arch.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/xm-test/lib/XmTestReport/arch.py Thu Oct 19 11:58:17 2006 +1000
@@ -0,0 +1,42 @@
+#!/usr/bin/python
+"""
+ arch.py - Encapsulate all logic regarding what type of hardware xen
+ is running on to make adding new platforms easier.
+
+ Copyright (C) 2006 Tony Breeds IBM Corporation
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; under version 2 of the License.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+"""
+
+import os
+
+"""Convert from uname specification to a more general
platform."""
+_uname_to_arch_map = {
+ "i386" : "x86",
+ "i486" : "x86",
+ "i586" : "x86",
+ "i686" : "x86",
+ "ia64" : "ia64",
+}
+
+_arch = _uname_to_arch_map.get(os.uname()[4], "Unknown")
+if _arch == "x86":
+ cpuValues = {"model_name" : "Unknown",
+ "flags" : "Unknown"}
+elif _arch == "ia64":
+ cpuValues = {"arch" : "Unknown",
+ "features" : "Unknown"}
+else:
+ raise ValueError, "Unknown architecture!"
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