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f32a69e5884d13d165fa381d43fe60790dfb4b7b
xen/tools/python/xen/lowlevel/xc/xc.c
T
Ian Campbell f32a69e588 [BUILDER] Propagate the native protocol ABI for a guest out of the 
domain builder and in to python code.

This knowledge will be useful to allow us to pre-seed the protocol
field in a VBD entry in xenstore which will allow us to run older
kernels in a 32on64 mixed environment.

Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
2007-05-15 17:54:48 +01:00

1592 lines
50 KiB
C
Raw Blame History

/******************************************************************************
* Xc.c
*
* Copyright (c) 2003-2004, K A Fraser (University of Cambridge)
*/
#include <Python.h>
#include <xenctrl.h>
#include <xenguest.h>
#include <zlib.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/mman.h>
#include <netdb.h>
#include <arpa/inet.h>
#include "xenctrl.h"
#include <xen/elfnote.h>
#include "xc_dom.h"
#include <xen/hvm/hvm_info_table.h>
#include <xen/hvm/params.h>
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
/* Needed for Python versions earlier than 2.3. */
#ifndef PyMODINIT_FUNC
#define PyMODINIT_FUNC DL_EXPORT(void)
#endif
#define PKG "xen.lowlevel.xc"
#define CLS "xc"
static PyObject *xc_error_obj, *zero;
typedef struct {
PyObject_HEAD;
int xc_handle;
} XcObject;
static PyObject *dom_op(XcObject *self, PyObject *args,
int (*fn)(int, uint32_t));
static PyObject *pyxc_error_to_exception(void)
{
PyObject *pyerr;
const xc_error *err = xc_get_last_error();
const char *desc = xc_error_code_to_desc(err->code);
if ( err->code == XC_ERROR_NONE )
return PyErr_SetFromErrno(xc_error_obj);
if ( err->message[0] != '\0' )
pyerr = Py_BuildValue("(iss)", err->code, desc, err->message);
else
pyerr = Py_BuildValue("(is)", err->code, desc);
xc_clear_last_error();
if ( pyerr != NULL )
{
PyErr_SetObject(xc_error_obj, pyerr);
Py_DECREF(pyerr);
}
return NULL;
}
static PyObject *pyxc_domain_dumpcore(XcObject *self, PyObject *args)
{
uint32_t dom;
char *corefile;
if ( !PyArg_ParseTuple(args, "is", &dom, &corefile) )
return NULL;
if ( (corefile == NULL) || (corefile[0] == '\0') )
return NULL;
if ( xc_domain_dumpcore(self->xc_handle, dom, corefile) != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_handle(XcObject *self)
{
return PyInt_FromLong(self->xc_handle);
}
static PyObject *pyxc_domain_create(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom = 0, ssidref = 0, flags = 0;
int ret, i, hvm = 0;
PyObject *pyhandle = NULL;
xen_domain_handle_t handle = {
0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef,
0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef };
static char *kwd_list[] = { "domid", "ssidref", "handle", "hvm", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "|iiOi", kwd_list,
&dom, &ssidref, &pyhandle, &hvm))
return NULL;
if ( pyhandle != NULL )
{
if ( !PyList_Check(pyhandle) ||
(PyList_Size(pyhandle) != sizeof(xen_domain_handle_t)) )
goto out_exception;
for ( i = 0; i < sizeof(xen_domain_handle_t); i++ )
{
PyObject *p = PyList_GetItem(pyhandle, i);
if ( !PyInt_Check(p) )
goto out_exception;
handle[i] = (uint8_t)PyInt_AsLong(p);
}
}
if ( hvm )
flags |= XEN_DOMCTL_CDF_hvm_guest;
if ( (ret = xc_domain_create(self->xc_handle, ssidref,
handle, flags, &dom)) < 0 )
return pyxc_error_to_exception();
return PyInt_FromLong(dom);
out_exception:
errno = EINVAL;
PyErr_SetFromErrno(xc_error_obj);
return NULL;
}
static PyObject *pyxc_domain_max_vcpus(XcObject *self, PyObject *args)
{
uint32_t dom, max;
if (!PyArg_ParseTuple(args, "ii", &dom, &max))
return NULL;
if (xc_domain_max_vcpus(self->xc_handle, dom, max) != 0)
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_domain_pause(XcObject *self, PyObject *args)
{
return dom_op(self, args, xc_domain_pause);
}
static PyObject *pyxc_domain_unpause(XcObject *self, PyObject *args)
{
return dom_op(self, args, xc_domain_unpause);
}
static PyObject *pyxc_domain_destroy(XcObject *self, PyObject *args)
{
return dom_op(self, args, xc_domain_destroy);
}
static PyObject *pyxc_domain_shutdown(XcObject *self, PyObject *args)
{
uint32_t dom, reason;
if ( !PyArg_ParseTuple(args, "ii", &dom, &reason) )
return NULL;
if ( xc_domain_shutdown(self->xc_handle, dom, reason) != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_domain_resume(XcObject *self, PyObject *args)
{
uint32_t dom;
int fast;
if ( !PyArg_ParseTuple(args, "ii", &dom, &fast) )
return NULL;
if ( xc_domain_resume(self->xc_handle, dom, fast) != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_vcpu_setaffinity(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom;
int vcpu = 0, i;
uint64_t cpumap = ~0ULL;
PyObject *cpulist = NULL;
static char *kwd_list[] = { "domid", "vcpu", "cpumap", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "i|iO", kwd_list,
&dom, &vcpu, &cpulist) )
return NULL;
if ( (cpulist != NULL) && PyList_Check(cpulist) )
{
cpumap = 0ULL;
for ( i = 0; i < PyList_Size(cpulist); i++ )
cpumap |= (uint64_t)1 << PyInt_AsLong(PyList_GetItem(cpulist, i));
}
if ( xc_vcpu_setaffinity(self->xc_handle, dom, vcpu, cpumap) != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_domain_setcpuweight(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom;
float cpuweight = 1;
static char *kwd_list[] = { "domid", "cpuweight", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "i|f", kwd_list,
&dom, &cpuweight) )
return NULL;
if ( xc_domain_setcpuweight(self->xc_handle, dom, cpuweight) != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_domain_sethandle(XcObject *self, PyObject *args)
{
int i;
uint32_t dom;
PyObject *pyhandle;
xen_domain_handle_t handle;
if (!PyArg_ParseTuple(args, "iO", &dom, &pyhandle))
return NULL;
if ( !PyList_Check(pyhandle) ||
(PyList_Size(pyhandle) != sizeof(xen_domain_handle_t)) )
{
goto out_exception;
}
for ( i = 0; i < sizeof(xen_domain_handle_t); i++ )
{
PyObject *p = PyList_GetItem(pyhandle, i);
if ( !PyInt_Check(p) )
goto out_exception;
handle[i] = (uint8_t)PyInt_AsLong(p);
}
if (xc_domain_sethandle(self->xc_handle, dom, handle) < 0)
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
out_exception:
PyErr_SetFromErrno(xc_error_obj);
return NULL;
}
static PyObject *pyxc_domain_getinfo(XcObject *self,
PyObject *args,
PyObject *kwds)
{
PyObject *list, *info_dict, *pyhandle;
uint32_t first_dom = 0;
int max_doms = 1024, nr_doms, i, j;
xc_dominfo_t *info;
static char *kwd_list[] = { "first_dom", "max_doms", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "|ii", kwd_list,
&first_dom, &max_doms) )
return NULL;
if ( (info = malloc(max_doms * sizeof(xc_dominfo_t))) == NULL )
return PyErr_NoMemory();
nr_doms = xc_domain_getinfo(self->xc_handle, first_dom, max_doms, info);
if (nr_doms < 0)
{
free(info);
return pyxc_error_to_exception();
}
list = PyList_New(nr_doms);
for ( i = 0 ; i < nr_doms; i++ )
{
info_dict = Py_BuildValue(
"{s:i,s:i,s:i,s:i,s:i,s:i,s:i,s:i,s:i,s:i"
",s:L,s:L,s:L,s:i,s:i}",
"domid", (int)info[i].domid,
"online_vcpus", info[i].nr_online_vcpus,
"max_vcpu_id", info[i].max_vcpu_id,
"hvm", info[i].hvm,
"dying", info[i].dying,
"crashed", info[i].crashed,
"shutdown", info[i].shutdown,
"paused", info[i].paused,
"blocked", info[i].blocked,
"running", info[i].running,
"mem_kb", (long long)info[i].nr_pages*(XC_PAGE_SIZE/1024),
"cpu_time", (long long)info[i].cpu_time,
"maxmem_kb", (long long)info[i].max_memkb,
"ssidref", (int)info[i].ssidref,
"shutdown_reason", info[i].shutdown_reason);
pyhandle = PyList_New(sizeof(xen_domain_handle_t));
if ( (pyhandle == NULL) || (info_dict == NULL) )
{
Py_DECREF(list);
if ( pyhandle != NULL ) { Py_DECREF(pyhandle); }
if ( info_dict != NULL ) { Py_DECREF(info_dict); }
return NULL;
}
for ( j = 0; j < sizeof(xen_domain_handle_t); j++ )
PyList_SetItem(pyhandle, j, PyInt_FromLong(info[i].handle[j]));
PyDict_SetItemString(info_dict, "handle", pyhandle);
Py_DECREF(pyhandle);
PyList_SetItem(list, i, info_dict);
}
free(info);
return list;
}
static PyObject *pyxc_vcpu_getinfo(XcObject *self,
PyObject *args,
PyObject *kwds)
{
PyObject *info_dict, *cpulist;
uint32_t dom, vcpu = 0;
xc_vcpuinfo_t info;
int rc, i;
uint64_t cpumap;
static char *kwd_list[] = { "domid", "vcpu", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "i|i", kwd_list,
&dom, &vcpu) )
return NULL;
rc = xc_vcpu_getinfo(self->xc_handle, dom, vcpu, &info);
if ( rc < 0 )
return pyxc_error_to_exception();
rc = xc_vcpu_getaffinity(self->xc_handle, dom, vcpu, &cpumap);
if ( rc < 0 )
return pyxc_error_to_exception();
info_dict = Py_BuildValue("{s:i,s:i,s:i,s:L,s:i}",
"online", info.online,
"blocked", info.blocked,
"running", info.running,
"cpu_time", info.cpu_time,
"cpu", info.cpu);
cpulist = PyList_New(0);
for ( i = 0; cpumap != 0; i++ )
{
if ( cpumap & 1 )
PyList_Append(cpulist, PyInt_FromLong(i));
cpumap >>= 1;
}
PyDict_SetItemString(info_dict, "cpumap", cpulist);
Py_DECREF(cpulist);
return info_dict;
}
static PyObject *pyxc_linux_build(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t domid;
struct xc_dom_image *dom;
char *image, *ramdisk = NULL, *cmdline = "", *features = NULL;
int flags = 0;
int store_evtchn, console_evtchn;
unsigned int mem_mb;
unsigned long store_mfn = 0;
unsigned long console_mfn = 0;
PyObject* elfnote_dict;
PyObject* elfnote = NULL;
PyObject* ret;
int i;
static char *kwd_list[] = { "domid", "store_evtchn", "memsize",
"console_evtchn", "image",
/* optional */
"ramdisk", "cmdline", "flags",
"features", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "iiiis|ssis", kwd_list,
&domid, &store_evtchn, &mem_mb,
&console_evtchn, &image,
/* optional */
&ramdisk, &cmdline, &flags,
&features) )
return NULL;
xc_dom_loginit();
if (!(dom = xc_dom_allocate(cmdline, features)))
return pyxc_error_to_exception();
if ( xc_dom_linux_build(self->xc_handle, dom, domid, mem_mb, image,
ramdisk, flags, store_evtchn, &store_mfn,
console_evtchn, &console_mfn) != 0 ) {
goto out;
}
if ( !(elfnote_dict = PyDict_New()) )
goto out;
for ( i = 0; i < ARRAY_SIZE(dom->parms.elf_notes); i++ )
{
switch ( dom->parms.elf_notes[i].type )
{
case XEN_ENT_NONE:
continue;
case XEN_ENT_LONG:
elfnote = Py_BuildValue("k", dom->parms.elf_notes[i].data.num);
break;
case XEN_ENT_STR:
elfnote = Py_BuildValue("s", dom->parms.elf_notes[i].data.str);
break;
}
PyDict_SetItemString(elfnote_dict,
dom->parms.elf_notes[i].name,
elfnote);
Py_DECREF(elfnote);
}
ret = Py_BuildValue("{s:i,s:i,s:N}",
"store_mfn", store_mfn,
"console_mfn", console_mfn,
"notes", elfnote_dict);
if ( dom->arch_hooks->native_protocol )
{
PyObject *native_protocol =
Py_BuildValue("s", dom->arch_hooks->native_protocol);
PyDict_SetItemString(ret, "native_protocol", native_protocol);
Py_DECREF(native_protocol);
}
xc_dom_release(dom);
return ret;
out:
xc_dom_release(dom);
return pyxc_error_to_exception();
}
static PyObject *pyxc_get_hvm_param(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom;
int param;
unsigned long value;
static char *kwd_list[] = { "domid", "param", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "i|i", kwd_list,
&dom, &param) )
return NULL;
if ( xc_get_hvm_param(self->xc_handle, dom, param, &value) != 0 )
return pyxc_error_to_exception();
return Py_BuildValue("i", value);
}
static PyObject *pyxc_hvm_build(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom;
#if !defined(__ia64__)
struct hvm_info_table *va_hvm;
uint8_t *va_map, sum;
int i;
#endif
char *image;
int store_evtchn, memsize, vcpus = 1, pae = 0, acpi = 0, apic = 1;
unsigned long store_mfn;
static char *kwd_list[] = { "domid", "store_evtchn",
"memsize", "image", "vcpus", "pae", "acpi",
"apic", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "iiis|iiii", kwd_list,
&dom, &store_evtchn, &memsize,
&image, &vcpus, &pae, &acpi, &apic) )
return NULL;
if ( xc_hvm_build(self->xc_handle, dom, memsize, image) != 0 )
return pyxc_error_to_exception();
#if !defined(__ia64__)
/* Set up the HVM info table. */
va_map = xc_map_foreign_range(self->xc_handle, dom, XC_PAGE_SIZE,
PROT_READ | PROT_WRITE,
HVM_INFO_PFN);
if ( va_map == NULL )
return PyErr_SetFromErrno(xc_error_obj);
va_hvm = (struct hvm_info_table *)(va_map + HVM_INFO_OFFSET);
memset(va_hvm, 0, sizeof(*va_hvm));
strncpy(va_hvm->signature, "HVM INFO", 8);
va_hvm->length = sizeof(struct hvm_info_table);
va_hvm->acpi_enabled = acpi;
va_hvm->apic_mode = apic;
va_hvm->nr_vcpus = vcpus;
for ( i = 0, sum = 0; i < va_hvm->length; i++ )
sum += ((uint8_t *)va_hvm)[i];
va_hvm->checksum = -sum;
munmap(va_map, XC_PAGE_SIZE);
#endif
xc_get_hvm_param(self->xc_handle, dom, HVM_PARAM_STORE_PFN, &store_mfn);
#if !defined(__ia64__)
xc_set_hvm_param(self->xc_handle, dom, HVM_PARAM_PAE_ENABLED, pae);
#endif
xc_set_hvm_param(self->xc_handle, dom, HVM_PARAM_STORE_EVTCHN,
store_evtchn);
return Py_BuildValue("{s:i}", "store_mfn", store_mfn);
}
static PyObject *pyxc_evtchn_alloc_unbound(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom, remote_dom;
int port;
static char *kwd_list[] = { "domid", "remote_dom", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "ii", kwd_list,
&dom, &remote_dom) )
return NULL;
if ( (port = xc_evtchn_alloc_unbound(self->xc_handle, dom, remote_dom)) < 0 )
return pyxc_error_to_exception();
return PyInt_FromLong(port);
}
static PyObject *pyxc_evtchn_reset(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom;
static char *kwd_list[] = { "dom", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "i", kwd_list, &dom) )
return NULL;
if ( xc_evtchn_reset(self->xc_handle, dom) < 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_physdev_pci_access_modify(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom;
int bus, dev, func, enable, ret;
static char *kwd_list[] = { "domid", "bus", "dev", "func", "enable", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "iiiii", kwd_list,
&dom, &bus, &dev, &func, &enable) )
return NULL;
ret = xc_physdev_pci_access_modify(
self->xc_handle, dom, bus, dev, func, enable);
if ( ret != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_readconsolering(XcObject *self,
PyObject *args,
PyObject *kwds)
{
unsigned int clear = 0;
char _str[32768], *str = _str;
unsigned int count = 32768;
int ret;
static char *kwd_list[] = { "clear", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "|i", kwd_list, &clear) )
return NULL;
ret = xc_readconsolering(self->xc_handle, &str, &count, clear);
if ( ret < 0 )
return pyxc_error_to_exception();
return PyString_FromStringAndSize(str, count);
}
static unsigned long pages_to_kib(unsigned long pages)
{
return pages * (XC_PAGE_SIZE / 1024);
}
static PyObject *pyxc_pages_to_kib(XcObject *self, PyObject *args)
{
unsigned long pages;
if (!PyArg_ParseTuple(args, "l", &pages))
return NULL;
return PyLong_FromUnsignedLong(pages_to_kib(pages));
}
static PyObject *pyxc_physinfo(XcObject *self)
{
xc_physinfo_t info;
char cpu_cap[128], *p=cpu_cap, *q=cpu_cap;
int i;
if ( xc_physinfo(self->xc_handle, &info) != 0 )
return pyxc_error_to_exception();
*q=0;
for(i=0;i<sizeof(info.hw_cap)/4;i++)
{
p+=sprintf(p,"%08x:",info.hw_cap[i]);
if(info.hw_cap[i])
q=p;
}
if(q>cpu_cap)
*(q-1)=0;
return Py_BuildValue("{s:i,s:i,s:i,s:i,s:l,s:l,s:l,s:i,s:s}",
"threads_per_core", info.threads_per_core,
"cores_per_socket", info.cores_per_socket,
"sockets_per_node", info.sockets_per_node,
"nr_nodes", info.nr_nodes,
"total_memory", pages_to_kib(info.total_pages),
"free_memory", pages_to_kib(info.free_pages),
"scrub_memory", pages_to_kib(info.scrub_pages),
"cpu_khz", info.cpu_khz,
"hw_caps", cpu_cap);
}
static PyObject *pyxc_xeninfo(XcObject *self)
{
xen_extraversion_t xen_extra;
xen_compile_info_t xen_cc;
xen_changeset_info_t xen_chgset;
xen_capabilities_info_t xen_caps;
xen_platform_parameters_t p_parms;
long xen_version;
long xen_pagesize;
char str[128];
xen_version = xc_version(self->xc_handle, XENVER_version, NULL);
if ( xc_version(self->xc_handle, XENVER_extraversion, &xen_extra) != 0 )
return pyxc_error_to_exception();
if ( xc_version(self->xc_handle, XENVER_compile_info, &xen_cc) != 0 )
return pyxc_error_to_exception();
if ( xc_version(self->xc_handle, XENVER_changeset, &xen_chgset) != 0 )
return pyxc_error_to_exception();
if ( xc_version(self->xc_handle, XENVER_capabilities, &xen_caps) != 0 )
return pyxc_error_to_exception();
if ( xc_version(self->xc_handle, XENVER_platform_parameters, &p_parms) != 0 )
return pyxc_error_to_exception();
sprintf(str, "virt_start=0x%lx", p_parms.virt_start);
xen_pagesize = xc_version(self->xc_handle, XENVER_pagesize, NULL);
if (xen_pagesize < 0 )
return pyxc_error_to_exception();
return Py_BuildValue("{s:i,s:i,s:s,s:s,s:i,s:s,s:s,s:s,s:s,s:s,s:s}",
"xen_major", xen_version >> 16,
"xen_minor", (xen_version & 0xffff),
"xen_extra", xen_extra,
"xen_caps", xen_caps,
"xen_pagesize", xen_pagesize,
"platform_params", str,
"xen_changeset", xen_chgset,
"cc_compiler", xen_cc.compiler,
"cc_compile_by", xen_cc.compile_by,
"cc_compile_domain", xen_cc.compile_domain,
"cc_compile_date", xen_cc.compile_date);
}
static PyObject *pyxc_sedf_domain_set(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t domid;
uint64_t period, slice, latency;
uint16_t extratime, weight;
static char *kwd_list[] = { "domid", "period", "slice",
"latency", "extratime", "weight",NULL };
if( !PyArg_ParseTupleAndKeywords(args, kwds, "iLLLhh", kwd_list,
&domid, &period, &slice,
&latency, &extratime, &weight) )
return NULL;
if ( xc_sedf_domain_set(self->xc_handle, domid, period,
slice, latency, extratime,weight) != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_sedf_domain_get(XcObject *self, PyObject *args)
{
uint32_t domid;
uint64_t period, slice,latency;
uint16_t weight, extratime;
if(!PyArg_ParseTuple(args, "i", &domid))
return NULL;
if (xc_sedf_domain_get(self->xc_handle, domid, &period,
&slice,&latency,&extratime,&weight))
return pyxc_error_to_exception();
return Py_BuildValue("{s:i,s:L,s:L,s:L,s:i,s:i}",
"domid", domid,
"period", period,
"slice", slice,
"latency", latency,
"extratime", extratime,
"weight", weight);
}
static PyObject *pyxc_shadow_control(PyObject *self,
PyObject *args,
PyObject *kwds)
{
XcObject *xc = (XcObject *)self;
uint32_t dom;
int op=0;
static char *kwd_list[] = { "dom", "op", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "i|i", kwd_list,
&dom, &op) )
return NULL;
if ( xc_shadow_control(xc->xc_handle, dom, op, NULL, 0, NULL, 0, NULL)
< 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_shadow_mem_control(PyObject *self,
PyObject *args,
PyObject *kwds)
{
XcObject *xc = (XcObject *)self;
int op;
uint32_t dom;
int mbarg = -1;
unsigned long mb;
static char *kwd_list[] = { "dom", "mb", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "i|i", kwd_list,
&dom, &mbarg) )
return NULL;
if ( mbarg < 0 )
op = XEN_DOMCTL_SHADOW_OP_GET_ALLOCATION;
else
{
mb = mbarg;
op = XEN_DOMCTL_SHADOW_OP_SET_ALLOCATION;
}
if ( xc_shadow_control(xc->xc_handle, dom, op, NULL, 0, &mb, 0, NULL) < 0 )
return pyxc_error_to_exception();
mbarg = mb;
return Py_BuildValue("i", mbarg);
}
static PyObject *pyxc_sched_id_get(XcObject *self) {
int sched_id;
if (xc_sched_id(self->xc_handle, &sched_id) != 0)
return PyErr_SetFromErrno(xc_error_obj);
return Py_BuildValue("i", sched_id);
}
static PyObject *pyxc_sched_credit_domain_set(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t domid;
uint16_t weight;
uint16_t cap;
static char *kwd_list[] = { "domid", "weight", "cap", NULL };
static char kwd_type[] = "I|HH";
struct xen_domctl_sched_credit sdom;
weight = 0;
cap = (uint16_t)~0U;
if( !PyArg_ParseTupleAndKeywords(args, kwds, kwd_type, kwd_list,
&domid, &weight, &cap) )
return NULL;
sdom.weight = weight;
sdom.cap = cap;
if ( xc_sched_credit_domain_set(self->xc_handle, domid, &sdom) != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_sched_credit_domain_get(XcObject *self, PyObject *args)
{
uint32_t domid;
struct xen_domctl_sched_credit sdom;
if( !PyArg_ParseTuple(args, "I", &domid) )
return NULL;
if ( xc_sched_credit_domain_get(self->xc_handle, domid, &sdom) != 0 )
return pyxc_error_to_exception();
return Py_BuildValue("{s:H,s:H}",
"weight", sdom.weight,
"cap", sdom.cap);
}
static PyObject *pyxc_domain_setmaxmem(XcObject *self, PyObject *args)
{
uint32_t dom;
unsigned int maxmem_kb;
if (!PyArg_ParseTuple(args, "ii", &dom, &maxmem_kb))
return NULL;
if (xc_domain_setmaxmem(self->xc_handle, dom, maxmem_kb) != 0)
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_domain_set_memmap_limit(XcObject *self, PyObject *args)
{
uint32_t dom;
unsigned int maplimit_kb;
if ( !PyArg_ParseTuple(args, "ii", &dom, &maplimit_kb) )
return NULL;
if ( xc_domain_set_memmap_limit(self->xc_handle, dom, maplimit_kb) != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_domain_memory_increase_reservation(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom;
unsigned long mem_kb;
unsigned int extent_order = 0 , address_bits = 0;
unsigned long nr_extents;
static char *kwd_list[] = { "domid", "mem_kb", "extent_order", "address_bits", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "il|ii", kwd_list,
&dom, &mem_kb, &extent_order, &address_bits) )
return NULL;
/* round down to nearest power of 2. Assume callers using extent_order>0
know what they are doing */
nr_extents = (mem_kb / (XC_PAGE_SIZE/1024)) >> extent_order;
if ( xc_domain_memory_increase_reservation(self->xc_handle, dom,
nr_extents, extent_order,
address_bits, NULL) )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_domain_ioport_permission(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom;
int first_port, nr_ports, allow_access, ret;
static char *kwd_list[] = { "domid", "first_port", "nr_ports", "allow_access", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "iiii", kwd_list,
&dom, &first_port, &nr_ports, &allow_access) )
return NULL;
ret = xc_domain_ioport_permission(
self->xc_handle, dom, first_port, nr_ports, allow_access);
if ( ret != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_domain_irq_permission(PyObject *self,
PyObject *args,
PyObject *kwds)
{
XcObject *xc = (XcObject *)self;
uint32_t dom;
int pirq, allow_access, ret;
static char *kwd_list[] = { "domid", "pirq", "allow_access", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "iii", kwd_list,
&dom, &pirq, &allow_access) )
return NULL;
ret = xc_domain_irq_permission(
xc->xc_handle, dom, pirq, allow_access);
if ( ret != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_domain_iomem_permission(PyObject *self,
PyObject *args,
PyObject *kwds)
{
XcObject *xc = (XcObject *)self;
uint32_t dom;
unsigned long first_pfn, nr_pfns, allow_access, ret;
static char *kwd_list[] = { "domid", "first_pfn", "nr_pfns", "allow_access", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "illi", kwd_list,
&dom, &first_pfn, &nr_pfns, &allow_access) )
return NULL;
ret = xc_domain_iomem_permission(
xc->xc_handle, dom, first_pfn, nr_pfns, allow_access);
if ( ret != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_domain_set_time_offset(XcObject *self, PyObject *args)
{
uint32_t dom;
int32_t time_offset_seconds;
time_t calendar_time;
struct tm local_time;
struct tm utc_time;
if (!PyArg_ParseTuple(args, "i", &dom))
return NULL;
calendar_time = time(NULL);
localtime_r(&calendar_time, &local_time);
gmtime_r(&calendar_time, &utc_time);
/* set up to get calendar time based on utc_time, with local dst setting */
utc_time.tm_isdst = local_time.tm_isdst;
time_offset_seconds = (int32_t)difftime(calendar_time, mktime(&utc_time));
if (xc_domain_set_time_offset(self->xc_handle, dom, time_offset_seconds) != 0)
return NULL;
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_domain_send_trigger(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom;
int trigger, vcpu = 0;
static char *kwd_list[] = { "domid", "trigger", "vcpu", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "ii|i", kwd_list,
&dom, &trigger, &vcpu) )
return NULL;
if (xc_domain_send_trigger(self->xc_handle, dom, trigger, vcpu) != 0)
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *pyxc_send_debug_keys(XcObject *self,
PyObject *args,
PyObject *kwds)
{
char *keys;
static char *kwd_list[] = { "keys", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "s", kwd_list, &keys) )
return NULL;
if ( xc_send_debug_keys(self->xc_handle, keys) != 0 )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
static PyObject *dom_op(XcObject *self, PyObject *args,
int (*fn)(int, uint32_t))
{
uint32_t dom;
if (!PyArg_ParseTuple(args, "i", &dom))
return NULL;
if (fn(self->xc_handle, dom) != 0)
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
#ifdef __powerpc__
static PyObject *pyxc_alloc_real_mode_area(XcObject *self,
PyObject *args,
PyObject *kwds)
{
uint32_t dom;
unsigned int log;
static char *kwd_list[] = { "dom", "log", NULL };
if ( !PyArg_ParseTupleAndKeywords(args, kwds, "ii", kwd_list,
&dom, &log) )
return NULL;
if ( xc_alloc_real_mode_area(self->xc_handle, dom, log) )
return pyxc_error_to_exception();
Py_INCREF(zero);
return zero;
}
#endif /* powerpc */
static PyMethodDef pyxc_methods[] = {
{ "handle",
(PyCFunction)pyxc_handle,
METH_NOARGS, "\n"
"Query the xc control interface file descriptor.\n\n"
"Returns: [int] file descriptor\n" },
{ "domain_create",
(PyCFunction)pyxc_domain_create,
METH_VARARGS | METH_KEYWORDS, "\n"
"Create a new domain.\n"
" dom [int, 0]: Domain identifier to use (allocated if zero).\n"
"Returns: [int] new domain identifier; -1 on error.\n" },
{ "domain_max_vcpus",
(PyCFunction)pyxc_domain_max_vcpus,
METH_VARARGS, "\n"
"Set the maximum number of VCPUs a domain may create.\n"
" dom [int, 0]: Domain identifier to use.\n"
" max [int, 0]: New maximum number of VCPUs in domain.\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_dumpcore",
(PyCFunction)pyxc_domain_dumpcore,
METH_VARARGS, "\n"
"Dump core of a domain.\n"
" dom [int]: Identifier of domain to dump core of.\n"
" corefile [string]: Name of corefile to be created.\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_pause",
(PyCFunction)pyxc_domain_pause,
METH_VARARGS, "\n"
"Temporarily pause execution of a domain.\n"
" dom [int]: Identifier of domain to be paused.\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_unpause",
(PyCFunction)pyxc_domain_unpause,
METH_VARARGS, "\n"
"(Re)start execution of a domain.\n"
" dom [int]: Identifier of domain to be unpaused.\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_destroy",
(PyCFunction)pyxc_domain_destroy,
METH_VARARGS, "\n"
"Destroy a domain.\n"
" dom [int]: Identifier of domain to be destroyed.\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_resume",
(PyCFunction)pyxc_domain_resume,
METH_VARARGS, "\n"
"Resume execution of a suspended domain.\n"
" dom [int]: Identifier of domain to be resumed.\n"
" fast [int]: Use cooperative resume.\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_shutdown",
(PyCFunction)pyxc_domain_shutdown,
METH_VARARGS, "\n"
"Shutdown a domain.\n"
" dom [int, 0]: Domain identifier to use.\n"
" reason [int, 0]: Reason for shutdown.\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "vcpu_setaffinity",
(PyCFunction)pyxc_vcpu_setaffinity,
METH_VARARGS | METH_KEYWORDS, "\n"
"Pin a VCPU to a specified set CPUs.\n"
" dom [int]: Identifier of domain to which VCPU belongs.\n"
" vcpu [int, 0]: VCPU being pinned.\n"
" cpumap [list, []]: list of usable CPUs.\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_setcpuweight",
(PyCFunction)pyxc_domain_setcpuweight,
METH_VARARGS | METH_KEYWORDS, "\n"
"Set cpuweight scheduler parameter for domain.\n"
" dom [int]: Identifier of domain to be changed.\n"
" cpuweight [float, 1]: VCPU being pinned.\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_sethandle",
(PyCFunction)pyxc_domain_sethandle,
METH_VARARGS, "\n"
"Set domain's opaque handle.\n"
" dom [int]: Identifier of domain.\n"
" handle [list of 16 ints]: New opaque handle.\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_getinfo",
(PyCFunction)pyxc_domain_getinfo,
METH_VARARGS | METH_KEYWORDS, "\n"
"Get information regarding a set of domains, in increasing id order.\n"
" first_dom [int, 0]: First domain to retrieve info about.\n"
" max_doms [int, 1024]: Maximum number of domains to retrieve info"
" about.\n\n"
"Returns: [list of dicts] if list length is less than 'max_doms'\n"
" parameter then there was an error, or the end of the\n"
" domain-id space was reached.\n"
" dom [int]: Identifier of domain to which this info pertains\n"
" cpu [int]: CPU to which this domain is bound\n"
" vcpus [int]: Number of Virtual CPUS in this domain\n"
" dying [int]: Bool - is the domain dying?\n"
" crashed [int]: Bool - has the domain crashed?\n"
" shutdown [int]: Bool - has the domain shut itself down?\n"
" paused [int]: Bool - is the domain paused by control software?\n"
" blocked [int]: Bool - is the domain blocked waiting for an event?\n"
" running [int]: Bool - is the domain currently running?\n"
" mem_kb [int]: Memory reservation, in kilobytes\n"
" maxmem_kb [int]: Maximum memory limit, in kilobytes\n"
" cpu_time [long]: CPU time consumed, in nanoseconds\n"
" shutdown_reason [int]: Numeric code from guest OS, explaining "
"reason why it shut itself down.\n" },
{ "vcpu_getinfo",
(PyCFunction)pyxc_vcpu_getinfo,
METH_VARARGS | METH_KEYWORDS, "\n"
"Get information regarding a VCPU.\n"
" dom [int]: Domain to retrieve info about.\n"
" vcpu [int, 0]: VCPU to retrieve info about.\n\n"
"Returns: [dict]\n"
" online [int]: Bool - Is this VCPU currently online?\n"
" blocked [int]: Bool - Is this VCPU blocked waiting for an event?\n"
" running [int]: Bool - Is this VCPU currently running on a CPU?\n"
" cpu_time [long]: CPU time consumed, in nanoseconds\n"
" cpumap [int]: Bitmap of CPUs this VCPU can run on\n"
" cpu [int]: CPU that this VCPU is currently bound to\n" },
{ "linux_build",
(PyCFunction)pyxc_linux_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"
"Build a new HVM guest OS.\n"
" dom [int]: Identifier of domain to build into.\n"
" image [str]: Name of HVM loader image file.\n"
" vcpus [int, 1]: Number of Virtual CPUS in domain.\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "hvm_get_param",
(PyCFunction)pyxc_get_hvm_param,
METH_VARARGS | METH_KEYWORDS, "\n"
"get a parameter of HVM guest OS.\n"
" dom [int]: Identifier of domain to build into.\n"
" param [int]: No. of HVM param.\n"
"Returns: [int] value of the param.\n" },
{ "sched_id_get",
(PyCFunction)pyxc_sched_id_get,
METH_NOARGS, "\n"
"Get the current scheduler type in use.\n"
"Returns: [int] sched_id.\n" },
{ "sedf_domain_set",
(PyCFunction)pyxc_sedf_domain_set,
METH_KEYWORDS, "\n"
"Set the scheduling parameters for a domain when running with Atropos.\n"
" dom [int]: domain to set\n"
" period [long]: domain's scheduling period\n"
" slice [long]: domain's slice per period\n"
" latency [long]: domain's wakeup latency hint\n"
" extratime [int]: domain aware of extratime?\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "sedf_domain_get",
(PyCFunction)pyxc_sedf_domain_get,
METH_VARARGS, "\n"
"Get the current scheduling parameters for a domain when running with\n"
"the Atropos scheduler."
" dom [int]: domain to query\n"
"Returns: [dict]\n"
" domain [int]: domain ID\n"
" period [long]: scheduler period\n"
" slice [long]: CPU reservation per period\n"
" latency [long]: domain's wakeup latency hint\n"
" extratime [int]: domain aware of extratime?\n"},
{ "sched_credit_domain_set",
(PyCFunction)pyxc_sched_credit_domain_set,
METH_KEYWORDS, "\n"
"Set the scheduling parameters for a domain when running with the\n"
"SMP credit scheduler.\n"
" domid [int]: domain id to set\n"
" weight [short]: domain's scheduling weight\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "sched_credit_domain_get",
(PyCFunction)pyxc_sched_credit_domain_get,
METH_VARARGS, "\n"
"Get the scheduling parameters for a domain when running with the\n"
"SMP credit scheduler.\n"
" domid [int]: domain id to get\n"
"Returns: [dict]\n"
" weight [short]: domain's scheduling weight\n"},
{ "evtchn_alloc_unbound",
(PyCFunction)pyxc_evtchn_alloc_unbound,
METH_VARARGS | METH_KEYWORDS, "\n"
"Allocate an unbound port that will await a remote connection.\n"
" dom [int]: Domain whose port space to allocate from.\n"
" remote_dom [int]: Remote domain to accept connections from.\n\n"
"Returns: [int] Unbound event-channel port.\n" },
{ "evtchn_reset",
(PyCFunction)pyxc_evtchn_reset,
METH_VARARGS | METH_KEYWORDS, "\n"
"Reset all connections.\n"
" dom [int]: Domain to reset.\n" },
{ "physdev_pci_access_modify",
(PyCFunction)pyxc_physdev_pci_access_modify,
METH_VARARGS | METH_KEYWORDS, "\n"
"Allow a domain access to a PCI device\n"
" dom [int]: Identifier of domain to be allowed access.\n"
" bus [int]: PCI bus\n"
" dev [int]: PCI slot\n"
" func [int]: PCI function\n"
" enable [int]: Non-zero means enable access; else disable access\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "readconsolering",
(PyCFunction)pyxc_readconsolering,
METH_VARARGS | METH_KEYWORDS, "\n"
"Read Xen's console ring.\n"
" clear [int, 0]: Bool - clear the ring after reading from it?\n\n"
"Returns: [str] string is empty on failure.\n" },
{ "physinfo",
(PyCFunction)pyxc_physinfo,
METH_NOARGS, "\n"
"Get information about the physical host machine\n"
"Returns [dict]: information about the hardware"
" [None]: on failure.\n" },
{ "xeninfo",
(PyCFunction)pyxc_xeninfo,
METH_NOARGS, "\n"
"Get information about the Xen host\n"
"Returns [dict]: information about Xen"
" [None]: on failure.\n" },
{ "shadow_control",
(PyCFunction)pyxc_shadow_control,
METH_VARARGS | METH_KEYWORDS, "\n"
"Set parameter for shadow pagetable interface\n"
" dom [int]: Identifier of domain.\n"
" op [int, 0]: operation\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "shadow_mem_control",
(PyCFunction)pyxc_shadow_mem_control,
METH_VARARGS | METH_KEYWORDS, "\n"
"Set or read shadow pagetable memory use\n"
" dom [int]: Identifier of domain.\n"
" mb [int, -1]: MB of shadow memory this domain should have.\n\n"
"Returns: [int] MB of shadow memory in use by this domain.\n" },
{ "domain_setmaxmem",
(PyCFunction)pyxc_domain_setmaxmem,
METH_VARARGS, "\n"
"Set a domain's memory limit\n"
" dom [int]: Identifier of domain.\n"
" maxmem_kb [int]: .\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_set_memmap_limit",
(PyCFunction)pyxc_domain_set_memmap_limit,
METH_VARARGS, "\n"
"Set a domain's physical memory mappping limit\n"
" dom [int]: Identifier of domain.\n"
" map_limitkb [int]: .\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_memory_increase_reservation",
(PyCFunction)pyxc_domain_memory_increase_reservation,
METH_VARARGS | METH_KEYWORDS, "\n"
"Increase a domain's memory reservation\n"
" dom [int]: Identifier of domain.\n"
" mem_kb [long]: .\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_ioport_permission",
(PyCFunction)pyxc_domain_ioport_permission,
METH_VARARGS | METH_KEYWORDS, "\n"
"Allow a domain access to a range of IO ports\n"
" dom [int]: Identifier of domain to be allowed access.\n"
" first_port [int]: First IO port\n"
" nr_ports [int]: Number of IO ports\n"
" allow_access [int]: Non-zero means enable access; else disable access\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_irq_permission",
(PyCFunction)pyxc_domain_irq_permission,
METH_VARARGS | METH_KEYWORDS, "\n"
"Allow a domain access to a physical IRQ\n"
" dom [int]: Identifier of domain to be allowed access.\n"
" pirq [int]: The Physical IRQ\n"
" allow_access [int]: Non-zero means enable access; else disable access\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_iomem_permission",
(PyCFunction)pyxc_domain_iomem_permission,
METH_VARARGS | METH_KEYWORDS, "\n"
"Allow a domain access to a range of IO memory pages\n"
" dom [int]: Identifier of domain to be allowed access.\n"
" first_pfn [long]: First page of I/O Memory\n"
" nr_pfns [long]: Number of pages of I/O Memory (>0)\n"
" allow_access [int]: Non-zero means enable access; else disable access\n\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "pages_to_kib",
(PyCFunction)pyxc_pages_to_kib,
METH_VARARGS, "\n"
"Returns: [int]: The size in KiB of memory spanning the given number "
"of pages.\n" },
{ "domain_set_time_offset",
(PyCFunction)pyxc_domain_set_time_offset,
METH_VARARGS, "\n"
"Set a domain's time offset to Dom0's localtime\n"
" dom [int]: Domain whose time offset is being set.\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "domain_send_trigger",
(PyCFunction)pyxc_domain_send_trigger,
METH_VARARGS | METH_KEYWORDS, "\n"
"Send trigger to a domain.\n"
" dom [int]: Identifier of domain to be sent trigger.\n"
" trigger [int]: Trigger type number.\n"
" vcpu [int]: VCPU to be sent trigger.\n"
"Returns: [int] 0 on success; -1 on error.\n" },
{ "send_debug_keys",
(PyCFunction)pyxc_send_debug_keys,
METH_VARARGS | METH_KEYWORDS, "\n"
"Inject debug keys into Xen.\n"
" keys [str]: String of keys to inject.\n" },
#ifdef __powerpc__
{ "arch_alloc_real_mode_area",
(PyCFunction)pyxc_alloc_real_mode_area,
METH_VARARGS | METH_KEYWORDS, "\n"
"Allocate a domain's real mode area.\n"
" dom [int]: Identifier of domain.\n"
" log [int]: Specifies the area's size.\n"
"Returns: [int] 0 on success; -1 on error.\n" },
#endif /* __powerpc */
{ NULL, NULL, 0, NULL }
};
static PyObject *PyXc_getattr(PyObject *obj, char *name)
{
return Py_FindMethod(pyxc_methods, obj, name);
}
static PyObject *PyXc_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
XcObject *self = (XcObject *)type->tp_alloc(type, 0);
if (self == NULL)
return NULL;
self->xc_handle = -1;
return (PyObject *)self;
}
static int
PyXc_init(XcObject *self, PyObject *args, PyObject *kwds)
{
if ((self->xc_handle = xc_interface_open()) == -1) {
pyxc_error_to_exception();
return -1;
}
return 0;
}
static void PyXc_dealloc(XcObject *self)
{
if (self->xc_handle != -1) {
xc_interface_close(self->xc_handle);
self->xc_handle = -1;
}
self->ob_type->tp_free((PyObject *)self);
}
static PyTypeObject PyXcType = {
PyObject_HEAD_INIT(NULL)
0,
PKG "." CLS,
sizeof(XcObject),
0,
(destructor)PyXc_dealloc, /* tp_dealloc */
NULL, /* tp_print */
PyXc_getattr, /* tp_getattr */
NULL, /* tp_setattr */
NULL, /* tp_compare */
NULL, /* tp_repr */
NULL, /* tp_as_number */
NULL, /* tp_as_sequence */
NULL, /* tp_as_mapping */
NULL, /* tp_hash */
NULL, /* tp_call */
NULL, /* tp_str */
NULL, /* tp_getattro */
NULL, /* tp_setattro */
NULL, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT, /* tp_flags */
"Xen client connections", /* tp_doc */
NULL, /* tp_traverse */
NULL, /* tp_clear */
NULL, /* tp_richcompare */
0, /* tp_weaklistoffset */
NULL, /* tp_iter */
NULL, /* tp_iternext */
pyxc_methods, /* tp_methods */
NULL, /* tp_members */
NULL, /* tp_getset */
NULL, /* tp_base */
NULL, /* tp_dict */
NULL, /* tp_descr_get */
NULL, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)PyXc_init, /* tp_init */
NULL, /* tp_alloc */
PyXc_new, /* tp_new */
};
static PyMethodDef xc_methods[] = { { NULL } };
PyMODINIT_FUNC initxc(void)
{
PyObject *m;
if (PyType_Ready(&PyXcType) < 0)
return;
m = Py_InitModule(PKG, xc_methods);
if (m == NULL)
return;
xc_error_obj = PyErr_NewException(PKG ".Error", PyExc_RuntimeError, NULL);
zero = PyInt_FromLong(0);
/* KAF: This ensures that we get debug output in a timely manner. */
setbuf(stdout, NULL);
setbuf(stderr, NULL);
Py_INCREF(&PyXcType);
PyModule_AddObject(m, CLS, (PyObject *)&PyXcType);
Py_INCREF(xc_error_obj);
PyModule_AddObject(m, "Error", xc_error_obj);
/* Expose some libxc constants to Python */
PyModule_AddIntConstant(m, "XEN_SCHEDULER_SEDF", XEN_SCHEDULER_SEDF);
PyModule_AddIntConstant(m, "XEN_SCHEDULER_CREDIT", XEN_SCHEDULER_CREDIT);
}
/*
* Local variables:
* c-indent-level: 4
* c-basic-offset: 4
* End:
*/
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