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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Add support for the ioport_permission dom0 op to xend and xm
# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 1f57d567cf4b4d7d7f53bf2bb8bb11168840298b
# Parent 270469d40f026bca0b7325d3f015a0a4382d28a4
Add support for the ioport_permission dom0 op to xend and xm
xm now accepts a parameter 'ioports' that accepts a hex ioport
or ioport range, in the form 02f8[-02ff]
Signed-off-by: Jody Belka <knew (at) pimb (dot) org>
diff -r 270469d40f02 -r 1f57d567cf4b tools/python/xen/xend/XendDomain.py
--- a/tools/python/xen/xend/XendDomain.py Sun Nov 6 18:50:33 2005
+++ b/tools/python/xen/xend/XendDomain.py Mon Nov 7 11:05:15 2005
@@ -492,6 +492,40 @@
except Exception, ex:
raise XendError(str(ex))
+ def domain_ioport_range_enable(self, domid, first, last):
+ """Enable access to a range of IO ports for a domain
+
+ @param first: first IO port
+ @param last: last IO port
+ @return: 0 on success, -1 on error
+ """
+ dominfo = self.domain_lookup(domid)
+ nr_ports = last - first + 1
+ try:
+ return xc.domain_ioport_permission(dominfo.getDomid(),
+ first_port = first,
+ nr_ports = nr_ports,
+ allow_access = 1)
+ except Exception, ex:
+ raise XendError(str(ex))
+
+ def domain_ioport_range_disable(self, domid, first, last):
+ """Disable access to a range of IO ports for a domain
+
+ @param first: first IO port
+ @param last: last IO port
+ @return: 0 on success, -1 on error
+ """
+ dominfo = self.domain_lookup(domid)
+ nr_ports = last - first + 1
+ try:
+ return xc.domain_ioport_permission(dominfo.getDomid(),
+ first_port = first,
+ nr_ports = nr_ports,
+ allow_access = 0)
+ except Exception, ex:
+ raise XendError(str(ex))
+
def instance():
"""Singleton constructor. Use this instead of the class constructor.
diff -r 270469d40f02 -r 1f57d567cf4b tools/python/xen/xend/XendDomainInfo.py
--- a/tools/python/xen/xend/XendDomainInfo.py Sun Nov 6 18:50:33 2005
+++ b/tools/python/xen/xend/XendDomainInfo.py Mon Nov 7 11:05:15 2005
@@ -1400,9 +1400,10 @@
controllerClasses[device_class] = cls
-from xen.xend.server import blkif, netif, tpmif, pciif, usbif
+from xen.xend.server import blkif, netif, tpmif, pciif, iopif, usbif
addControllerClass('vbd', blkif.BlkifController)
addControllerClass('vif', netif.NetifController)
addControllerClass('vtpm', tpmif.TPMifController)
addControllerClass('pci', pciif.PciController)
+addControllerClass('ioports', iopif.IOPortsController)
addControllerClass('usb', usbif.UsbifController)
diff -r 270469d40f02 -r 1f57d567cf4b tools/python/xen/xm/create.py
--- a/tools/python/xen/xm/create.py Sun Nov 6 18:50:33 2005
+++ b/tools/python/xen/xm/create.py Mon Nov 7 11:05:15 2005
@@ -241,6 +241,12 @@
For example '-pci c0,02,1a'.
The option may be repeated to add more than one pci device.""")
+gopts.var('ioports', val='FROM[-TO]',
+ fn=append_value, default=[],
+ use="""Add a legacy I/O range to a domain, using given params (in
hex).
+ For example '-ioports 02f8-02ff'.
+ The option may be repeated to add more than one i/o range.""")
+
gopts.var('usb', val='PATH',
fn=append_value, default=[],
use="""Add a physical USB port to a domain, as specified by the path
@@ -438,6 +444,13 @@
for (bus, dev, func) in vals.pci:
config_pci = ['pci', ['bus', bus], ['dev', dev], ['func', func]]
config_devs.append(['device', config_pci])
+
+def configure_ioports(config_devs, vals):
+ """Create the config for legacy i/o ranges.
+ """
+ for (io_from, io_to) in vals.ioports:
+ config_ioports = ['ioports', ['from', io_from], ['to', io_to]]
+ config_devs.append(['device', config_ioports])
def configure_usb(config_devs, vals):
for path in vals.usb:
@@ -611,6 +624,7 @@
config_devs = []
configure_disks(config_devs, vals)
configure_pci(config_devs, vals)
+ configure_ioports(config_devs, vals)
configure_vifs(config_devs, vals)
configure_usb(config_devs, vals)
configure_vtpm(config_devs, vals)
@@ -645,6 +659,20 @@
pci.append(hexd)
vals.pci = pci
+def preprocess_ioports(vals):
+ if not vals.ioports: return
+ ioports = []
+ for v in vals.ioports:
+ d = v.split('-')
+ if len(d) < 1 || len(d) > 2:
+ err('Invalid i/o port range specifier: ' + v)
+ if len(d) == 1:
+ d.append(d[0])
+ # Components are in hex: add hex specifier.
+ hexd = map(lambda v: '0x'+v, d)
+ ioports.append(hexd)
+ vals.ioports = ioports
+
def preprocess_vifs(vals):
if not vals.vif: return
vifs = []
@@ -777,6 +805,7 @@
err("No kernel specified")
preprocess_disk(vals)
preprocess_pci(vals)
+ preprocess_ioports(vals)
preprocess_vifs(vals)
preprocess_ip(vals)
preprocess_nfs(vals)
diff -r 270469d40f02 -r 1f57d567cf4b tools/python/xen/xend/server/iopif.py
--- /dev/null Sun Nov 6 18:50:33 2005
+++ b/tools/python/xen/xend/server/iopif.py Mon Nov 7 11:05:15 2005
@@ -0,0 +1,86 @@
+#============================================================================
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of version 2.1 of the GNU Lesser General Public
+# License as published by the Free Software Foundation.
+#
+# This library 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#============================================================================
+# Copyright (C) 2004, 2005 Mike Wray <mike.wray@xxxxxx>
+# Copyright (C) 2005 XenSource Ltd
+# Copyright (C) 2005 Jody Belka
+#============================================================================
+
+
+import types
+
+import xen.lowlevel.xc;
+
+from xen.xend import sxp
+from xen.xend.XendError import VmError
+
+from xen.xend.server.DevController import DevController
+
+
+xc = xen.lowlevel.xc.new()
+
+
+def parse_ioport(val):
+ """Parse an i/o port field.
+ """
+ if isinstance(val, types.StringType):
+ radix = 10
+ if val.startswith('0x') or val.startswith('0X'):
+ radix = 16
+ v = int(val, radix)
+ else:
+ v = val
+ return v
+
+
+class IOPortsController(DevController):
+
+ def __init__(self, vm):
+ DevController.__init__(self, vm)
+
+
+ def getDeviceDetails(self, config):
+ """@see DevController.getDeviceDetails"""
+
+ def get_param(field):
+ try:
+ val = sxp.child_value(config, field)
+
+ if not val:
+ raise VmError('ioports: Missing %s config setting' % field)
+
+ return parse_ioport(val)
+ except:
+ raise VmError('ioports: Invalid config setting %s: %s' %
+ (field, val))
+
+ io_from = get_param('from')
+ io_to = get_param('to')
+
+ if io_to < io_from or io_to >= 65536:
+ raise VmError('ioports: Invalid i/o range: %s - %s' %
+ (io_from, io_to))
+
+ rc = xc.domain_ioport_permission(dom = self.getDomid(),
+ first_port = io_from,
+ nr_ports = io_to - io_from + 1,
+ allow_access = True)
+
+ if rc < 0:
+ #todo non-fatal
+ raise VmError(
+ 'ioports: Failed to configure legacy i/o range: %s - %s' %
+ (io_from, io_to))
+
+ return (dev, {}, {})
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