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xenctrl_stubs.c
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/*
* Copyright (C) 2006-2007 XenSource Ltd.
* Copyright (C) 2008 Citrix Ltd.
* Author Vincent Hanquez <vincent.hanquez@eu.citrix.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; version 2.1 only. with the special
* exception on linking described in file 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 Lesser General Public License for more details.
*/
#define _XOPEN_SOURCE 600
#include <stdlib.h>
#include <errno.h>
#define CAML_NAME_SPACE
#include <caml/alloc.h>
#include <caml/memory.h>
#include <caml/signals.h>
#include <caml/fail.h>
#include <caml/callback.h>
#include <sys/mman.h>
#include <stdint.h>
#include <string.h>
#define XC_WANT_COMPAT_MAP_FOREIGN_API
#include <xenctrl.h>
#include "mmap_stubs.h"
#include "config.h"
#define PAGE_SHIFT 12
#define PAGE_SIZE (1UL << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#define _H(__h) ((xc_interface *)(__h))
#define _D(__d) ((uint32_t)Int_val(__d))
#define Val_none (Val_int(0))
#define string_of_option_array(array, index) \
((Field(array, index) == Val_none) ? NULL : String_val(Field(Field(array, index), 0)))
/* maybe here we should check the range of the input instead of blindly
* casting it to uint32 */
#define cpuid_input_of_val(i1, i2, input) \
i1 = (uint32_t) Int64_val(Field(input, 0)); \
i2 = ((Field(input, 1) == Val_none) ? 0xffffffff : (uint32_t) Int64_val(Field(Field(input, 1), 0)));
#define ERROR_STRLEN 1024
void failwith_xc(xc_interface *xch)
{
static char error_str[ERROR_STRLEN];
if (xch) {
const xc_error *error = xc_get_last_error(xch);
if (error->code == XC_ERROR_NONE)
snprintf(error_str, ERROR_STRLEN, "%d: %s", errno, strerror(errno));
else
snprintf(error_str, ERROR_STRLEN, "%d: %s: %s",
error->code,
xc_error_code_to_desc(error->code),
error->message);
} else {
snprintf(error_str, ERROR_STRLEN, "Unable to open XC interface");
}
caml_raise_with_string(*caml_named_value("xc.error"), error_str);
}
CAMLprim value stub_xc_interface_open(void)
{
CAMLparam0();
xc_interface *xch;
/* Don't assert XC_OPENFLAG_NON_REENTRANT because these bindings
* do not prevent re-entrancy to libxc */
xch = xc_interface_open(NULL, NULL, 0);
if (xch == NULL)
failwith_xc(NULL);
CAMLreturn((value)xch);
}
CAMLprim value stub_xc_interface_close(value xch)
{
CAMLparam1(xch);
caml_enter_blocking_section();
xc_interface_close(_H(xch));
caml_leave_blocking_section();
CAMLreturn(Val_unit);
}
static int domain_create_flag_table[] = {
XEN_DOMCTL_CDF_hvm_guest,
XEN_DOMCTL_CDF_hap,
};
CAMLprim value stub_xc_domain_create(value xch, value ssidref,
value flags, value handle)
{
CAMLparam4(xch, ssidref, flags, handle);
uint32_t domid = 0;
xen_domain_handle_t h = { 0 };
int result;
int i;
uint32_t c_ssidref = Int32_val(ssidref);
unsigned int c_flags = 0;
value l;
if (Wosize_val(handle) != 16)
caml_invalid_argument("Handle not a 16-integer array");
for (i = 0; i < sizeof(h); i++) {
h[i] = Int_val(Field(handle, i)) & 0xff;
}
for (l = flags; l != Val_none; l = Field(l, 1)) {
int v = Int_val(Field(l, 0));
c_flags |= domain_create_flag_table[v];
}
caml_enter_blocking_section();
result = xc_domain_create(_H(xch), c_ssidref, h, c_flags, &domid
#ifdef DOMAIN_CREATE_HAS_CONFIG
,NULL
#endif
);
caml_leave_blocking_section();
if (result < 0)
failwith_xc(_H(xch));
CAMLreturn(Val_int(domid));
}
CAMLprim value stub_xc_domain_max_vcpus(value xch, value domid,
value max_vcpus)
{
CAMLparam3(xch, domid, max_vcpus);
int r;
r = xc_domain_max_vcpus(_H(xch), _D(domid), Int_val(max_vcpus));
if (r)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
value stub_xc_domain_sethandle(value xch, value domid, value handle)
{
CAMLparam3(xch, domid, handle);
xen_domain_handle_t h = { 0 };
int i;
if (Wosize_val(handle) != 16)
caml_invalid_argument("Handle not a 16-integer array");
for (i = 0; i < sizeof(h); i++) {
h[i] = Int_val(Field(handle, i)) & 0xff;
}
i = xc_domain_sethandle(_H(xch), _D(domid), h);
if (i)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
static value dom_op(value xch, value domid, int (*fn)(xc_interface *, uint32_t))
{
CAMLparam2(xch, domid);
int result;
uint32_t c_domid = _D(domid);
caml_enter_blocking_section();
result = fn(_H(xch), c_domid);
caml_leave_blocking_section();
if (result)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
CAMLprim value stub_xc_domain_pause(value xch, value domid)
{
return dom_op(xch, domid, xc_domain_pause);
}
CAMLprim value stub_xc_domain_unpause(value xch, value domid)
{
return dom_op(xch, domid, xc_domain_unpause);
}
CAMLprim value stub_xc_domain_destroy(value xch, value domid)
{
return dom_op(xch, domid, xc_domain_destroy);
}
CAMLprim value stub_xc_domain_resume_fast(value xch, value domid)
{
CAMLparam2(xch, domid);
int result;
uint32_t c_domid = _D(domid);
caml_enter_blocking_section();
result = xc_domain_resume(_H(xch), c_domid, 1);
caml_leave_blocking_section();
if (result)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
CAMLprim value stub_xc_domain_shutdown(value xch, value domid, value reason)
{
CAMLparam3(xch, domid, reason);
int ret;
ret = xc_domain_shutdown(_H(xch), _D(domid), Int_val(reason));
if (ret < 0)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
static value alloc_domaininfo(xc_domaininfo_t * info)
{
CAMLparam0();
CAMLlocal2(result, tmp);
int i;
result = caml_alloc_tuple(16);
Store_field(result, 0, Val_int(info->domain));
Store_field(result, 1, Val_bool(info->flags & XEN_DOMINF_dying));
Store_field(result, 2, Val_bool(info->flags & XEN_DOMINF_shutdown));
Store_field(result, 3, Val_bool(info->flags & XEN_DOMINF_paused));
Store_field(result, 4, Val_bool(info->flags & XEN_DOMINF_blocked));
Store_field(result, 5, Val_bool(info->flags & XEN_DOMINF_running));
Store_field(result, 6, Val_bool(info->flags & XEN_DOMINF_hvm_guest));
Store_field(result, 7, Val_int((info->flags >> XEN_DOMINF_shutdownshift)
& XEN_DOMINF_shutdownmask));
Store_field(result, 8, caml_copy_nativeint(info->tot_pages));
Store_field(result, 9, caml_copy_nativeint(info->max_pages));
Store_field(result, 10, caml_copy_int64(info->shared_info_frame));
Store_field(result, 11, caml_copy_int64(info->cpu_time));
Store_field(result, 12, Val_int(info->nr_online_vcpus));
Store_field(result, 13, Val_int(info->max_vcpu_id));
Store_field(result, 14, caml_copy_int32(info->ssidref));
tmp = caml_alloc_small(16, 0);
for (i = 0; i < 16; i++) {
Field(tmp, i) = Val_int(info->handle[i]);
}
Store_field(result, 15, tmp);
CAMLreturn(result);
}
CAMLprim value stub_xc_domain_getinfolist(value xch, value first_domain, value nb)
{
CAMLparam3(xch, first_domain, nb);
CAMLlocal2(result, temp);
xc_domaininfo_t * info;
int i, ret, toalloc, retval;
unsigned int c_max_domains;
uint32_t c_first_domain;
/* get the minimum number of allocate byte we need and bump it up to page boundary */
toalloc = (sizeof(xc_domaininfo_t) * Int_val(nb)) | 0xfff;
ret = posix_memalign((void **) ((void *) &info), 4096, toalloc);
if (ret)
caml_raise_out_of_memory();
result = temp = Val_emptylist;
c_first_domain = _D(first_domain);
c_max_domains = Int_val(nb);
caml_enter_blocking_section();
retval = xc_domain_getinfolist(_H(xch), c_first_domain,
c_max_domains, info);
caml_leave_blocking_section();
if (retval < 0) {
free(info);
failwith_xc(_H(xch));
}
for (i = 0; i < retval; i++) {
result = caml_alloc_small(2, Tag_cons);
Field(result, 0) = Val_int(0);
Field(result, 1) = temp;
temp = result;
Store_field(result, 0, alloc_domaininfo(info + i));
}
free(info);
CAMLreturn(result);
}
CAMLprim value stub_xc_domain_getinfo(value xch, value domid)
{
CAMLparam2(xch, domid);
CAMLlocal1(result);
xc_domaininfo_t info;
int ret;
ret = xc_domain_getinfolist(_H(xch), _D(domid), 1, &info);
if (ret != 1)
failwith_xc(_H(xch));
if (info.domain != _D(domid))
failwith_xc(_H(xch));
result = alloc_domaininfo(&info);
CAMLreturn(result);
}
CAMLprim value stub_xc_vcpu_getinfo(value xch, value domid, value vcpu)
{
CAMLparam3(xch, domid, vcpu);
CAMLlocal1(result);
xc_vcpuinfo_t info;
int retval;
uint32_t c_domid = _D(domid);
uint32_t c_vcpu = Int_val(vcpu);
caml_enter_blocking_section();
retval = xc_vcpu_getinfo(_H(xch), c_domid,
c_vcpu, &info);
caml_leave_blocking_section();
if (retval < 0)
failwith_xc(_H(xch));
result = caml_alloc_tuple(5);
Store_field(result, 0, Val_bool(info.online));
Store_field(result, 1, Val_bool(info.blocked));
Store_field(result, 2, Val_bool(info.running));
Store_field(result, 3, caml_copy_int64(info.cpu_time));
Store_field(result, 4, caml_copy_int32(info.cpu));
CAMLreturn(result);
}
CAMLprim value stub_xc_get_runstate_info(value xch, value domid)
{
#if defined(XENCTRL_HAS_GET_RUNSTATE_INFO)
CAMLparam2(xch, domid);
CAMLlocal1(result);
xc_runstate_info_t info;
int retval;
retval = xc_get_runstate_info(_H(xch), _D(domid), &info);
if (retval < 0)
failwith_xc(_H(xch));
/* Store
0 : state (int32)
1 : missed_changes (int32)
2 : state_entry_time (int64)
3-8 : times (int64s)
*/
result = caml_alloc_tuple(9);
Store_field(result, 0, caml_copy_int32(info.state));
Store_field(result, 1, caml_copy_int32(info.missed_changes));
Store_field(result, 2, caml_copy_int64(info.state_entry_time));
Store_field(result, 3, caml_copy_int64(info.time[0]));
Store_field(result, 4, caml_copy_int64(info.time[1]));
Store_field(result, 5, caml_copy_int64(info.time[2]));
Store_field(result, 6, caml_copy_int64(info.time[3]));
Store_field(result, 7, caml_copy_int64(info.time[4]));
Store_field(result, 8, caml_copy_int64(info.time[5]));
CAMLreturn(result);
#else
caml_failwith("XENCTRL_HAS_GET_RUNSTATE_INFO not defined");
#endif
}
CAMLprim value stub_xc_vcpu_context_get(value xch, value domid,
value cpu)
{
CAMLparam3(xch, domid, cpu);
CAMLlocal1(context);
int ret;
vcpu_guest_context_any_t ctxt;
ret = xc_vcpu_getcontext(_H(xch), _D(domid), Int_val(cpu), &ctxt);
if (ret < 0)
failwith_xc(_H(xch));
context = caml_alloc_string(sizeof(ctxt));
memcpy(String_val(context), (char *) &ctxt.c, sizeof(ctxt.c));
CAMLreturn(context);
}
static int get_cpumap_len(value xch, value cpumap)
{
int ml_len = Wosize_val(cpumap);
int xc_len = xc_get_max_cpus(_H(xch));
if (ml_len < xc_len)
return ml_len;
else
return xc_len;
}
CAMLprim value stub_xc_vcpu_setaffinity(value xch, value domid,
value vcpu, value cpumap)
{
CAMLparam4(xch, domid, vcpu, cpumap);
int i, len = get_cpumap_len(xch, cpumap);
xc_cpumap_t c_cpumap;
int retval;
c_cpumap = xc_cpumap_alloc(_H(xch));
if (c_cpumap == NULL)
failwith_xc(_H(xch));
for (i=0; i<len; i++) {
if (Bool_val(Field(cpumap, i)))
c_cpumap[i/8] |= 1 << (i&7);
}
retval = xc_vcpu_setaffinity(_H(xch), _D(domid),
Int_val(vcpu),
#ifdef HAVE_XEN_4_5
c_cpumap, c_cpumap, 0
#else
c_cpumap
#endif
);
free(c_cpumap);
if (retval < 0)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
CAMLprim value stub_xc_vcpu_getaffinity(value xch, value domid,
value vcpu)
{
CAMLparam3(xch, domid, vcpu);
CAMLlocal1(ret);
xc_cpumap_t c_cpumap;
int i, len = xc_get_max_cpus(_H(xch));
int retval;
c_cpumap = xc_cpumap_alloc(_H(xch));
if (c_cpumap == NULL)
failwith_xc(_H(xch));
retval = xc_vcpu_getaffinity(_H(xch), _D(domid),
Int_val(vcpu),
#ifdef HAVE_XEN_4_5
c_cpumap, NULL, 0
#else
c_cpumap
#endif
);
free(c_cpumap);
if (retval < 0) {
free(c_cpumap);
failwith_xc(_H(xch));
}
ret = caml_alloc(len, 0);
for (i=0; i<len; i++) {
if (c_cpumap[i/8] & 1 << (i&7))
Store_field(ret, i, Val_true);
else
Store_field(ret, i, Val_false);
}
free(c_cpumap);
CAMLreturn(ret);
}
CAMLprim value stub_xc_sched_id(value xch)
{
CAMLparam1(xch);
int sched_id;
if (xc_sched_id(_H(xch), &sched_id))
failwith_xc(_H(xch));
CAMLreturn(Val_int(sched_id));
}
CAMLprim value stub_xc_evtchn_alloc_unbound(value xch,
value local_domid,
value remote_domid)
{
CAMLparam3(xch, local_domid, remote_domid);
int result;
uint32_t c_local_domid = _D(local_domid);
uint32_t c_remote_domid = _D(remote_domid);
caml_enter_blocking_section();
result = xc_evtchn_alloc_unbound(_H(xch), c_local_domid,
c_remote_domid);
caml_leave_blocking_section();
if (result < 0)
failwith_xc(_H(xch));
CAMLreturn(Val_int(result));
}
CAMLprim value stub_xc_evtchn_reset(value xch, value domid)
{
CAMLparam2(xch, domid);
int r;
r = xc_evtchn_reset(_H(xch), _D(domid));
if (r < 0)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
#define RING_SIZE 32768
static char ring[RING_SIZE];
CAMLprim value stub_xc_readconsolering(value xch)
{
unsigned int size = RING_SIZE - 1;
char *ring_ptr = ring;
int retval;
CAMLparam1(xch);
caml_enter_blocking_section();
retval = xc_readconsolering(_H(xch), ring_ptr, &size, 0, 0, NULL);
caml_leave_blocking_section();
if (retval)
failwith_xc(_H(xch));
ring[size] = '\0';
CAMLreturn(caml_copy_string(ring));
}
CAMLprim value stub_xc_send_debug_keys(value xch, value keys)
{
CAMLparam2(xch, keys);
int r;
r = xc_send_debug_keys(_H(xch), String_val(keys));
if (r)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
CAMLprim value stub_xc_physinfo(value xch)
{
CAMLparam1(xch);
CAMLlocal3(physinfo, cap_list, tmp);
xc_physinfo_t c_physinfo;
int r;
caml_enter_blocking_section();
r = xc_physinfo(_H(xch), &c_physinfo);
caml_leave_blocking_section();
if (r)
failwith_xc(_H(xch));
tmp = cap_list = Val_emptylist;
for (r = 0; r < 2; r++) {
if ((c_physinfo.capabilities >> r) & 1) {
tmp = caml_alloc_small(2, Tag_cons);
Field(tmp, 0) = Val_int(r);
Field(tmp, 1) = cap_list;
cap_list = tmp;
}
}
physinfo = caml_alloc_tuple(10);
Store_field(physinfo, 0, Val_int(c_physinfo.threads_per_core));
Store_field(physinfo, 1, Val_int(c_physinfo.cores_per_socket));
Store_field(physinfo, 2, Val_int(c_physinfo.nr_cpus));
Store_field(physinfo, 3, Val_int(c_physinfo.max_node_id));
Store_field(physinfo, 4, Val_int(c_physinfo.cpu_khz));
Store_field(physinfo, 5, caml_copy_nativeint(c_physinfo.total_pages));
Store_field(physinfo, 6, caml_copy_nativeint(c_physinfo.free_pages));
Store_field(physinfo, 7, caml_copy_nativeint(c_physinfo.scrub_pages));
Store_field(physinfo, 8, cap_list);
Store_field(physinfo, 9, Val_int(c_physinfo.max_cpu_id + 1));
CAMLreturn(physinfo);
}
CAMLprim value stub_xc_pcpu_info(value xch, value nr_cpus)
{
CAMLparam2(xch, nr_cpus);
CAMLlocal2(pcpus, v);
xc_cpuinfo_t *info;
int r, size;
if (Int_val(nr_cpus) < 1)
caml_invalid_argument("nr_cpus");
info = calloc(Int_val(nr_cpus) + 1, sizeof(*info));
if (!info)
caml_raise_out_of_memory();
caml_enter_blocking_section();
r = xc_getcpuinfo(_H(xch), Int_val(nr_cpus), info, &size);
caml_leave_blocking_section();
if (r) {
free(info);
failwith_xc(_H(xch));
}
if (size > 0) {
int i;
pcpus = caml_alloc(size, 0);
for (i = 0; i < size; i++) {
v = caml_copy_int64(info[i].idletime);
caml_modify(&Field(pcpus, i), v);
}
} else
pcpus = Atom(0);
free(info);
CAMLreturn(pcpus);
}
CAMLprim value stub_xc_domain_setmaxmem(value xch, value domid,
value max_memkb)
{
CAMLparam3(xch, domid, max_memkb);
int retval;
uint32_t c_domid = _D(domid);
unsigned int c_max_memkb = Int64_val(max_memkb);
caml_enter_blocking_section();
retval = xc_domain_setmaxmem(_H(xch), c_domid,
c_max_memkb);
caml_leave_blocking_section();
if (retval)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
CAMLprim value stub_xc_domain_set_memmap_limit(value xch, value domid,
value map_limitkb)
{
CAMLparam3(xch, domid, map_limitkb);
unsigned long v;
int retval;
v = Int64_val(map_limitkb);
retval = xc_domain_set_memmap_limit(_H(xch), _D(domid), v);
if (retval)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
CAMLprim value stub_xc_domain_memory_increase_reservation(value xch,
value domid,
value mem_kb)
{
CAMLparam3(xch, domid, mem_kb);
int retval;
unsigned long nr_extents = ((unsigned long)(Int64_val(mem_kb))) >> (PAGE_SHIFT - 10);
uint32_t c_domid = _D(domid);
caml_enter_blocking_section();
retval = xc_domain_increase_reservation_exact(_H(xch), c_domid,
nr_extents, 0, 0, NULL);
caml_leave_blocking_section();
if (retval)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
CAMLprim value stub_xc_domain_set_machine_address_size(value xch,
value domid,
value width)
{
CAMLparam3(xch, domid, width);
uint32_t c_domid = _D(domid);
int c_width = Int_val(width);
int retval = xc_domain_set_machine_address_size(_H(xch), c_domid, c_width);
if (retval)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
CAMLprim value stub_xc_domain_get_machine_address_size(value xch,
value domid)
{
CAMLparam2(xch, domid);
int retval;
retval = xc_domain_get_machine_address_size(_H(xch), _D(domid));
if (retval < 0)
failwith_xc(_H(xch));
CAMLreturn(Val_int(retval));
}
CAMLprim value stub_xc_domain_cpuid_set(value xch, value domid,
value input,
value config)
{
CAMLparam4(xch, domid, input, config);
CAMLlocal2(array, tmp);
#if defined(__i386__) || defined(__x86_64__)
int r;
unsigned int c_input[2];
char *c_config[4], *out_config[4];
c_config[0] = string_of_option_array(config, 0);
c_config[1] = string_of_option_array(config, 1);
c_config[2] = string_of_option_array(config, 2);
c_config[3] = string_of_option_array(config, 3);
cpuid_input_of_val(c_input[0], c_input[1], input);
array = caml_alloc(4, 0);
for (r = 0; r < 4; r++) {
tmp = Val_none;
if (c_config[r]) {
tmp = caml_alloc_small(1, 0);
Field(tmp, 0) = caml_alloc_string(32);
}
Store_field(array, r, tmp);
}
for (r = 0; r < 4; r++)
out_config[r] = (c_config[r]) ? String_val(Field(Field(array, r), 0)) : NULL;
r = xc_cpuid_set(_H(xch), _D(domid),
c_input, (const char **)c_config, out_config);
if (r < 0)
failwith_xc(_H(xch));
#else
caml_failwith("xc_domain_cpuid_set: not implemented");
#endif
CAMLreturn(array);
}
CAMLprim value stub_xc_domain_cpuid_apply_policy(value xch, value domid)
{
CAMLparam2(xch, domid);
#if defined(__i386__) || defined(__x86_64__)
int r;
r = xc_cpuid_apply_policy(_H(xch), _D(domid)
#ifdef XEN_SYSCTL_cpu_featureset_raw
,NULL,0
#endif
);
if (r < 0)
failwith_xc(_H(xch));
#else
caml_failwith("xc_domain_cpuid_apply_policy: not implemented");
#endif
CAMLreturn(Val_unit);
}
CAMLprim value stub_xc_version_version(value xch)
{
CAMLparam1(xch);
CAMLlocal1(result);
xen_extraversion_t extra;
long packed;
int retval;
caml_enter_blocking_section();
packed = xc_version(_H(xch), XENVER_version, NULL);
retval = xc_version(_H(xch), XENVER_extraversion, &extra);
caml_leave_blocking_section();
if (retval)
failwith_xc(_H(xch));
result = caml_alloc_tuple(3);
Store_field(result, 0, Val_int(packed >> 16));
Store_field(result, 1, Val_int(packed & 0xffff));
Store_field(result, 2, caml_copy_string(extra));
CAMLreturn(result);
}
CAMLprim value stub_xc_version_compile_info(value xch)
{
CAMLparam1(xch);
CAMLlocal1(result);
xen_compile_info_t ci;
int retval;
caml_enter_blocking_section();
retval = xc_version(_H(xch), XENVER_compile_info, &ci);
caml_leave_blocking_section();
if (retval)
failwith_xc(_H(xch));
result = caml_alloc_tuple(4);
Store_field(result, 0, caml_copy_string(ci.compiler));
Store_field(result, 1, caml_copy_string(ci.compile_by));
Store_field(result, 2, caml_copy_string(ci.compile_domain));
Store_field(result, 3, caml_copy_string(ci.compile_date));
CAMLreturn(result);
}
static value xc_version_single_string(value xch, int code, void *info)
{
CAMLparam1(xch);
int retval;
caml_enter_blocking_section();
retval = xc_version(_H(xch), code, info);
caml_leave_blocking_section();
if (retval)
failwith_xc(_H(xch));
CAMLreturn(caml_copy_string((char *)info));
}
CAMLprim value stub_xc_version_changeset(value xch)
{
xen_changeset_info_t ci;
return xc_version_single_string(xch, XENVER_changeset, &ci);
}
CAMLprim value stub_xc_version_capabilities(value xch)
{
xen_capabilities_info_t ci;
return xc_version_single_string(xch, XENVER_capabilities, &ci);
}
CAMLprim value stub_pages_to_kib(value pages)
{
CAMLparam1(pages);
CAMLreturn(caml_copy_int64(Int64_val(pages) << (PAGE_SHIFT - 10)));
}
CAMLprim value stub_map_foreign_range(value xch, value dom,
value size, value mfn)
{
CAMLparam4(xch, dom, size, mfn);
CAMLlocal1(result);
struct mmap_interface *intf;
uint32_t c_dom;
unsigned long c_mfn;
result = caml_alloc(sizeof(struct mmap_interface), Abstract_tag);
intf = (struct mmap_interface *) result;
intf->len = Int_val(size);
c_dom = _D(dom);
c_mfn = Nativeint_val(mfn);
caml_enter_blocking_section();
intf->addr = xc_map_foreign_range(_H(xch), c_dom,
intf->len, PROT_READ|PROT_WRITE,
c_mfn);
caml_leave_blocking_section();
if (!intf->addr)
caml_failwith("xc_map_foreign_range error");
CAMLreturn(result);
}
CAMLprim value stub_sched_credit_domain_get(value xch, value domid)
{
CAMLparam2(xch, domid);
CAMLlocal1(sdom);
struct xen_domctl_sched_credit c_sdom;
int ret;
caml_enter_blocking_section();
ret = xc_sched_credit_domain_get(_H(xch), _D(domid), &c_sdom);
caml_leave_blocking_section();
if (ret != 0)
failwith_xc(_H(xch));
sdom = caml_alloc_tuple(2);
Store_field(sdom, 0, Val_int(c_sdom.weight));
Store_field(sdom, 1, Val_int(c_sdom.cap));
CAMLreturn(sdom);
}
CAMLprim value stub_sched_credit_domain_set(value xch, value domid,
value sdom)
{
CAMLparam3(xch, domid, sdom);
struct xen_domctl_sched_credit c_sdom;
int ret;
c_sdom.weight = Int_val(Field(sdom, 0));
c_sdom.cap = Int_val(Field(sdom, 1));
caml_enter_blocking_section();
ret = xc_sched_credit_domain_set(_H(xch), _D(domid), &c_sdom);
caml_leave_blocking_section();
if (ret != 0)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
CAMLprim value stub_shadow_allocation_get(value xch, value domid)
{
CAMLparam2(xch, domid);
CAMLlocal1(mb);
unsigned long c_mb;
int ret;
caml_enter_blocking_section();
ret = xc_shadow_control(_H(xch), _D(domid),
XEN_DOMCTL_SHADOW_OP_GET_ALLOCATION,
NULL, 0, &c_mb, 0, NULL);
caml_leave_blocking_section();
if (ret != 0)
failwith_xc(_H(xch));
mb = Val_int(c_mb);
CAMLreturn(mb);
}
CAMLprim value stub_shadow_allocation_set(value xch, value domid,
value mb)
{
CAMLparam3(xch, domid, mb);
unsigned long c_mb;
int ret;
c_mb = Int_val(mb);
caml_enter_blocking_section();
ret = xc_shadow_control(_H(xch), _D(domid),
XEN_DOMCTL_SHADOW_OP_SET_ALLOCATION,
NULL, 0, &c_mb, 0, NULL);
caml_leave_blocking_section();
if (ret != 0)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
CAMLprim value stub_xc_domain_ioport_permission(value xch, value domid,
value start_port, value nr_ports,
value allow)
{
CAMLparam5(xch, domid, start_port, nr_ports, allow);
uint32_t c_start_port, c_nr_ports;
uint8_t c_allow;
int ret;
c_start_port = Int_val(start_port);
c_nr_ports = Int_val(nr_ports);
c_allow = Bool_val(allow);
ret = xc_domain_ioport_permission(_H(xch), _D(domid),
c_start_port, c_nr_ports, c_allow);
if (ret < 0)
failwith_xc(_H(xch));
CAMLreturn(Val_unit);
}
CAMLprim value stub_xc_domain_iomem_permission(value xch, value domid,
value start_pfn, value nr_pfns,
value allow)
{
CAMLparam5(xch, domid, start_pfn, nr_pfns, allow);
unsigned long c_start_pfn, c_nr_pfns;