[TOOLS][POWERPC] Add Prose Domain Builder

The following patch addes a Prose domain builder.  For the moment it
is a clone of the linux ppc64 builder but will diverge quickly.
Signed-off-by: Jonathan Appavoo <jappavoo@us.ibm.com>
Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

tools/python/xen/lowlevel/xc/xc.c

@@ -369,6 +369,47 @@ static PyObject *pyxc_linux_build(XcObject *self,
                          "console_mfn", console_mfn);
 }
 
+static PyObject *pyxc_prose_build(XcObject *self,
+                                  PyObject *args,
+                                  PyObject *kwds)
+{
+    uint32_t dom;
+    char *image, *ramdisk = NULL, *cmdline = "", *features = NULL;
+    int flags = 0;
+    int store_evtchn, console_evtchn;
+    unsigned long store_mfn = 0;
+    unsigned long console_mfn = 0;
+    void *arch_args = NULL;
+    int unused;
+
+    static char *kwd_list[] = { "dom", "store_evtchn",
+                                "console_evtchn", "image",
+                                /* optional */
+                                "ramdisk", "cmdline", "flags",
+                                "features", "arch_args", NULL };
+
+    if ( !PyArg_ParseTupleAndKeywords(args, kwds, "iiis|ssiss#", kwd_list,
+                                      &dom, &store_evtchn,
+                                      &console_evtchn, &image,
+                                      /* optional */
+                                      &ramdisk, &cmdline, &flags,
+                                      &features, &arch_args, &unused) )
+        return NULL;
+
+    if ( xc_prose_build(self->xc_handle, dom, image,
+                        ramdisk, cmdline, features, flags,
+                        store_evtchn, &store_mfn,
+                        console_evtchn, &console_mfn,
+                        arch_args) != 0 ) {
+        if (!errno)
+             errno = EINVAL;
+        return PyErr_SetFromErrno(xc_error);
+    }
+    return Py_BuildValue("{s:i,s:i}", 
+                         "store_mfn", store_mfn,
+                         "console_mfn", console_mfn);
+}
+
 static PyObject *pyxc_hvm_build(XcObject *self,
                                 PyObject *args,
                                 PyObject *kwds)
@@ -1003,6 +1044,18 @@ static PyMethodDef pyxc_methods[] = {
       " vcpus   [int, 1]:   Number of Virtual CPUS in domain.\n\n"
       "Returns: [int] 0 on success; -1 on error.\n" },
 
+    { "prose_build", 
+      (PyCFunction)pyxc_prose_build, 
+      METH_VARARGS | METH_KEYWORDS, "\n"
+      "Build a new Linux guest OS.\n"
+      " dom     [int]:      Identifier of domain to build into.\n"
+      " image   [str]:      Name of kernel image file. May be gzipped.\n"
+      " ramdisk [str, n/a]: Name of ramdisk file, if any.\n"
+      " cmdline [str, n/a]: Kernel parameters, if any.\n\n"
+      " vcpus   [int, 1]:   Number of Virtual CPUS in domain.\n\n"
+      "Returns: [int] 0 on success; -1 on error.\n" },
+
+
     { "hvm_build", 
       (PyCFunction)pyxc_hvm_build, 
       METH_VARARGS | METH_KEYWORDS, "\n"

tools/python/xen/xend/image.py

@@ -246,6 +246,47 @@ class PPC_LinuxImageHandler(LinuxImageHandler):
                               features       = self.vm.getFeatures(),
                               arch_args      = devtree.to_bin())
 
+class PPC_ProseImageHandler(LinuxImageHandler):
+
+    ostype = "prose"
+
+    def configure(self, imageConfig, deviceConfig):
+        LinuxImageHandler.configure(self, imageConfig, deviceConfig)
+        self.imageConfig = imageConfig
+
+    def buildDomain(self):
+        store_evtchn = self.vm.getStorePort()
+        console_evtchn = self.vm.getConsolePort()
+
+        log.debug("dom            = %d", self.vm.getDomid())
+        log.debug("image          = %s", self.kernel)
+        log.debug("store_evtchn   = %d", store_evtchn)
+        log.debug("console_evtchn = %d", console_evtchn)
+        log.debug("cmdline        = %s", self.cmdline)
+        log.debug("ramdisk        = %s", self.ramdisk)
+        log.debug("vcpus          = %d", self.vm.getVCpuCount())
+        log.debug("features       = %s", self.vm.getFeatures())
+
+        devtree = FlatDeviceTree.build(self)
+
+        return xc.prose_build(dom            = self.vm.getDomid(),
+                              image          = self.kernel,
+                              store_evtchn   = store_evtchn,
+                              console_evtchn = console_evtchn,
+                              cmdline        = self.cmdline,
+                              ramdisk        = self.ramdisk,
+                              features       = self.vm.getFeatures(),
+                              arch_args      = devtree.to_bin())
+
+    def getRequiredShadowMemory(self, shadow_mem_kb, maxmem_kb):
+        """@param shadow_mem_kb The configured shadow memory, in KiB.
+        @param maxmem_kb The configured maxmem, in KiB.
+        @return The corresponding required amount of shadow memory, also in
+        KiB.
+        PowerPC currently uses "shadow memory" to refer to the hash table."""
+        return max(maxmem_kb / 64, shadow_mem_kb)
+
+
 class HVMImageHandler(ImageHandler):
 
     def __init__(self, vm, imageConfig, deviceConfig):
@@ -512,6 +553,7 @@ class X86_HVM_ImageHandler(HVMImageHandler):
 _handlers = {
     "powerpc": {
         "linux": PPC_LinuxImageHandler,
+        "prose": PPC_ProseImageHandler,
     },
     "ia64": {
         "linux": LinuxImageHandler,