static int
libxlDiskSetDiscard(libxl_device_disk *x_disk, int discard)
{
if (!x_disk->readwrite)
return 0;
#if defined(LIBXL_HAVE_LIBXL_DEVICE_DISK_DISCARD_ENABLE)
switch ((virDomainDiskDiscard)discard) {
case VIR_DOMAIN_DISK_DISCARD_DEFAULT:
case VIR_DOMAIN_DISK_DISCARD_LAST:
break;
case VIR_DOMAIN_DISK_DISCARD_UNMAP:
libxl_defbool_set(&x_disk->discard_enable, true);
break;
case VIR_DOMAIN_DISK_DISCARD_IGNORE:
libxl_defbool_set(&x_disk->discard_enable, false);
break;
}
return 0;
#else
if (discard == VIR_DOMAIN_DISK_DISCARD_DEFAULT)
return 0;
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("This version of libxenlight does not support "
"disk 'discard' option passing"));
return -1;
#endif
}
int
libxlMakeVfb(libxlDriverPrivatePtr driver,
virDomainGraphicsDefPtr l_vfb,
libxl_device_vfb *x_vfb)
{
unsigned short port;
const char *listenAddr;
libxl_device_vfb_init(x_vfb);
switch (l_vfb->type) {
case VIR_DOMAIN_GRAPHICS_TYPE_SDL:
libxl_defbool_set(&x_vfb->sdl.enable, 1);
if (VIR_STRDUP(x_vfb->sdl.display, l_vfb->data.sdl.display) < 0)
return -1;
if (VIR_STRDUP(x_vfb->sdl.xauthority, l_vfb->data.sdl.xauth) < 0)
return -1;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_VNC:
libxl_defbool_set(&x_vfb->vnc.enable, 1);
/* driver handles selection of free port */
libxl_defbool_set(&x_vfb->vnc.findunused, 0);
if (l_vfb->data.vnc.autoport) {
if (virPortAllocatorAcquire(driver->reservedVNCPorts, &port) < 0)
return -1;
l_vfb->data.vnc.port = port;
}
x_vfb->vnc.display = l_vfb->data.vnc.port - LIBXL_VNC_PORT_MIN;
listenAddr = virDomainGraphicsListenGetAddress(l_vfb, 0);
if (listenAddr) {
/* libxl_device_vfb_init() does VIR_STRDUP("127.0.0.1") */
VIR_FREE(x_vfb->vnc.listen);
if (VIR_STRDUP(x_vfb->vnc.listen, listenAddr) < 0)
return -1;
}
if (VIR_STRDUP(x_vfb->keymap, l_vfb->data.vnc.keymap) < 0)
return -1;
break;
}
return 0;
}
int xlu_cfg_get_defbool(const XLU_Config *cfg, const char *n, libxl_defbool *b,
int dont_warn)
{
int ret;
long l;
ret = xlu_cfg_get_long(cfg, n, &l, dont_warn);
if (ret) return ret;
libxl_defbool_set(b, !!l);
return 0;
}
int hyperxl_domain_start(libxl_ctx* ctx, hyperxl_domain_config* config) {
int i, ret = -1;
uint32_t domid = 0;
libxl_domain_config d_config;
libxl_domain_config_init(&d_config);
//init create info
libxl_domain_create_info* c_info = &d_config.c_info;
libxl_domain_create_info_init(c_info);
if (config->hvm)
c_info->type = LIBXL_DOMAIN_TYPE_HVM;
else
c_info->type = LIBXL_DOMAIN_TYPE_PV;
libxl_uuid_generate(&c_info->uuid);
c_info->name = strdup(config->name);
libxl_defbool_set(&c_info->run_hotplug_scripts, false);
//init_build_info
libxl_domain_build_info* b_info = &d_config.b_info;
if (config->hvm)
libxl_domain_build_info_init_type(b_info, LIBXL_DOMAIN_TYPE_HVM);
else {
// currently only hvm is supported. pv mode will be enabled
// whenever we can insert several serial ports and filesystem
// into pv domain.
goto cleanup;
}
// currently, we do not change vcpu and memory only, will add this
// feature later.
b_info->max_vcpus = config->max_vcpus;
if (libxl_cpu_bitmap_alloc(ctx, &b_info->avail_vcpus, config->max_vcpus))
goto cleanup;
libxl_bitmap_set_none(&b_info->avail_vcpus);
for (i = 0; i < config->max_vcpus; i++)
libxl_bitmap_set((&b_info->avail_vcpus), i);
b_info->sched_params.weight = 1000;
b_info->max_memkb = config->max_memory_kb;
b_info->target_memkb = config->max_memory_kb;
b_info->video_memkb = 0;
// currently, we only initialize hvm fields
if (config->hvm) {
libxl_defbool_set(&b_info->u.hvm.pae, true);
libxl_defbool_set(&b_info->u.hvm.apic, false);
libxl_defbool_set(&b_info->u.hvm.acpi, true);
b_info->u.hvm.boot = strdup("c");
b_info->cmdline = strdup(config->cmdline);
b_info->kernel = strdup(config->kernel);
b_info->ramdisk = strdup(config->initrd);
b_info->u.hvm.vga.kind = LIBXL_VGA_INTERFACE_TYPE_NONE;
libxl_defbool_set(&b_info->u.hvm.nographic, 1);
libxl_defbool_set(&b_info->u.hvm.vnc.enable, 0);
libxl_defbool_set(&b_info->u.hvm.sdl.enable, 0);
b_info->u.hvm.serial = strdup(config->console_sock);
libxl_string_list_copy(ctx, &b_info->extra, (libxl_string_list*)config->extra);
/*
* comments from libvirt and libxenlight:
*
* The following comment and calculation were taken directly from
* libxenlight's internal function libxl_get_required_shadow_memory():
*
* 256 pages (1MB) per vcpu, plus 1 page per MiB of RAM for the P2M map,
* plus 1 page per MiB of RAM to shadow the resident processes.
*/
b_info->shadow_memkb = 4 * (256 * libxl_bitmap_count_set(&b_info->avail_vcpus) +
2 * (b_info->max_memkb / 1024));
}
if (libxl_domain_create_new(ctx, &d_config,
&domid, NULL, NULL)) {
goto cleanup;
}
libxl_evgen_domain_death* e_death = NULL;
if (libxl_evenable_domain_death(ctx, domid, 0, &e_death)) {
goto cleanup;
}
libxl_domain_unpause(ctx, domid);
config->domid = domid;
config->ev = e_death;
ret = 0;
cleanup:
libxl_domain_config_dispose(&d_config);
return ret;
}
static int
libxlMakeDomBuildInfo(virDomainObjPtr vm, libxl_domain_config *d_config)
{
virDomainDefPtr def = vm->def;
libxlDomainObjPrivatePtr priv = vm->privateData;
libxl_domain_build_info *b_info = &d_config->b_info;
int hvm = STREQ(def->os.type, "hvm");
size_t i;
libxl_domain_build_info_init(b_info);
if (hvm)
libxl_domain_build_info_init_type(b_info, LIBXL_DOMAIN_TYPE_HVM);
else
libxl_domain_build_info_init_type(b_info, LIBXL_DOMAIN_TYPE_PV);
b_info->max_vcpus = def->maxvcpus;
if (libxl_cpu_bitmap_alloc(priv->ctx, &b_info->avail_vcpus, def->maxvcpus))
goto error;
libxl_bitmap_set_none(&b_info->avail_vcpus);
for (i = 0; i < def->vcpus; i++)
libxl_bitmap_set((&b_info->avail_vcpus), i);
if (def->clock.ntimers > 0 &&
def->clock.timers[0]->name == VIR_DOMAIN_TIMER_NAME_TSC) {
switch (def->clock.timers[0]->mode) {
case VIR_DOMAIN_TIMER_MODE_NATIVE:
b_info->tsc_mode = 2;
break;
case VIR_DOMAIN_TIMER_MODE_PARAVIRT:
b_info->tsc_mode = 3;
break;
default:
b_info->tsc_mode = 1;
}
}
b_info->sched_params.weight = 1000;
b_info->max_memkb = def->mem.max_balloon;
b_info->target_memkb = def->mem.cur_balloon;
if (hvm) {
char bootorder[VIR_DOMAIN_BOOT_LAST + 1];
libxl_defbool_set(&b_info->u.hvm.pae,
def->features[VIR_DOMAIN_FEATURE_PAE] ==
VIR_DOMAIN_FEATURE_STATE_ON);
libxl_defbool_set(&b_info->u.hvm.apic,
def->features[VIR_DOMAIN_FEATURE_APIC] ==
VIR_DOMAIN_FEATURE_STATE_ON);
libxl_defbool_set(&b_info->u.hvm.acpi,
def->features[VIR_DOMAIN_FEATURE_ACPI] ==
VIR_DOMAIN_FEATURE_STATE_ON);
for (i = 0; i < def->clock.ntimers; i++) {
if (def->clock.timers[i]->name == VIR_DOMAIN_TIMER_NAME_HPET &&
def->clock.timers[i]->present == 1) {
libxl_defbool_set(&b_info->u.hvm.hpet, 1);
}
}
for (i = 0; i < def->os.nBootDevs; i++) {
switch (def->os.bootDevs[i]) {
case VIR_DOMAIN_BOOT_FLOPPY:
bootorder[i] = 'a';
break;
default:
case VIR_DOMAIN_BOOT_DISK:
bootorder[i] = 'c';
break;
case VIR_DOMAIN_BOOT_CDROM:
bootorder[i] = 'd';
break;
case VIR_DOMAIN_BOOT_NET:
bootorder[i] = 'n';
break;
}
}
if (def->os.nBootDevs == 0) {
bootorder[0] = 'c';
bootorder[1] = '\0';
}
else {
bootorder[def->os.nBootDevs] = '\0';
}
if (VIR_STRDUP(b_info->u.hvm.boot, bootorder) < 0)
goto error;
if (def->nserials) {
if (def->nserials > 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s",
_("Only one serial device is supported by libxl"));
goto error;
}
if (libxlMakeChrdevStr(def->serials[0], &b_info->u.hvm.serial) < 0)
goto error;
}
if (def->nparallels) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s",
_("Parallel devices are not supported by libxl"));
goto error;
}
/*
* The following comment and calculation were taken directly from
* libxenlight's internal function libxl_get_required_shadow_memory():
*
* 256 pages (1MB) per vcpu, plus 1 page per MiB of RAM for the P2M map,
* plus 1 page per MiB of RAM to shadow the resident processes.
*/
b_info->shadow_memkb = 4 * (256 * libxl_bitmap_count_set(&b_info->avail_vcpus) +
2 * (b_info->max_memkb / 1024));
} else {
/*
* For compatibility with the legacy xen toolstack, default to pygrub
* if bootloader is not specified AND direct kernel boot is not specified.
*/
if (def->os.bootloader) {
if (VIR_STRDUP(b_info->u.pv.bootloader, def->os.bootloader) < 0)
goto error;
} else if (def->os.kernel == NULL) {
if (VIR_STRDUP(b_info->u.pv.bootloader, LIBXL_BOOTLOADER_PATH) < 0)
goto error;
}
if (def->os.bootloaderArgs) {
if (!(b_info->u.pv.bootloader_args =
virStringSplit(def->os.bootloaderArgs, " \t\n", 0)))
goto error;
}
if (VIR_STRDUP(b_info->u.pv.cmdline, def->os.cmdline) < 0)
goto error;
if (def->os.kernel) {
/* libxl_init_build_info() sets VIR_STRDUP(kernel.path, "hvmloader") */
VIR_FREE(b_info->u.pv.kernel);
if (VIR_STRDUP(b_info->u.pv.kernel, def->os.kernel) < 0)
goto error;
}
if (VIR_STRDUP(b_info->u.pv.ramdisk, def->os.initrd) < 0)
goto error;
}
return 0;
error:
libxl_domain_build_info_dispose(b_info);
return -1;
}
static int
libxlMakeVfbList(virPortAllocatorPtr graphicsports,
virDomainDefPtr def,
libxl_domain_config *d_config)
{
virDomainGraphicsDefPtr *l_vfbs = def->graphics;
int nvfbs = def->ngraphics;
libxl_device_vfb *x_vfbs;
libxl_device_vkb *x_vkbs;
size_t i;
if (nvfbs == 0)
return 0;
if (VIR_ALLOC_N(x_vfbs, nvfbs) < 0)
return -1;
if (VIR_ALLOC_N(x_vkbs, nvfbs) < 0) {
VIR_FREE(x_vfbs);
return -1;
}
for (i = 0; i < nvfbs; i++) {
libxl_device_vkb_init(&x_vkbs[i]);
if (libxlMakeVfb(graphicsports, l_vfbs[i], &x_vfbs[i]) < 0)
goto error;
}
d_config->vfbs = x_vfbs;
d_config->vkbs = x_vkbs;
d_config->num_vfbs = d_config->num_vkbs = nvfbs;
/*
* VNC or SDL info must also be set in libxl_domain_build_info
* for HVM domains. Use the first vfb device.
*/
if (STREQ(def->os.type, "hvm")) {
libxl_domain_build_info *b_info = &d_config->b_info;
libxl_device_vfb vfb = d_config->vfbs[0];
if (libxl_defbool_val(vfb.vnc.enable)) {
libxl_defbool_set(&b_info->u.hvm.vnc.enable, true);
if (VIR_STRDUP(b_info->u.hvm.vnc.listen, vfb.vnc.listen) < 0)
goto error;
if (VIR_STRDUP(b_info->u.hvm.vnc.passwd, vfb.vnc.passwd) < 0)
goto error;
b_info->u.hvm.vnc.display = vfb.vnc.display;
libxl_defbool_set(&b_info->u.hvm.vnc.findunused,
libxl_defbool_val(vfb.vnc.findunused));
} else if (libxl_defbool_val(vfb.sdl.enable)) {
libxl_defbool_set(&b_info->u.hvm.sdl.enable, true);
libxl_defbool_set(&b_info->u.hvm.sdl.opengl,
libxl_defbool_val(vfb.sdl.opengl));
if (VIR_STRDUP(b_info->u.hvm.sdl.display, vfb.sdl.display) < 0)
goto error;
if (VIR_STRDUP(b_info->u.hvm.sdl.xauthority, vfb.sdl.xauthority) < 0)
goto error;
}
}
return 0;
error:
for (i = 0; i < nvfbs; i++) {
libxl_device_vfb_dispose(&x_vfbs[i]);
libxl_device_vkb_dispose(&x_vkbs[i]);
}
VIR_FREE(x_vfbs);
VIR_FREE(x_vkbs);
return -1;
}