[Xen-devel] [PATCH 4/4] ioports: xend/xm support

[lists-xen@xxxxxxxx]

4/4

-- 
Jody Belka
knew (at) pimb (dot) org

# HG changeset patch
# User jmb@xxxxxxxxxxxxxxxxxxxxx
# Node ID e2b5c74938f64d55609a690c22a18c3875b21d04
# Parent  3acad8d6d0cf5c8a00833aea7fdbb20f9e73868e
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 3acad8d6d0cf -r e2b5c74938f6 tools/python/xen/xend/XendDomain.py
--- a/tools/python/xen/xend/XendDomain.py       Sun Nov  6 01:15:12 2005
+++ b/tools/python/xen/xend/XendDomain.py       Sun Nov  6 01:15:44 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 3acad8d6d0cf -r e2b5c74938f6 tools/python/xen/xend/XendDomainInfo.py
--- a/tools/python/xen/xend/XendDomainInfo.py   Sun Nov  6 01:15:12 2005
+++ b/tools/python/xen/xend/XendDomainInfo.py   Sun Nov  6 01:15:44 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 3acad8d6d0cf -r e2b5c74938f6 tools/python/xen/xm/create.py
--- a/tools/python/xen/xm/create.py     Sun Nov  6 01:15:12 2005
+++ b/tools/python/xen/xm/create.py     Sun Nov  6 01:15:44 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)

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