int libxl_get_free_memory_0x040700(libxl_ctx *ctx, uint32_t *memkb)
{
uint64_t my_memkb;
int rc;
rc = libxl_get_free_memory(ctx, &my_memkb);
return libxl__memkb_64to32(ctx, rc, my_memkb, memkb);
}
int hyperxl_initialize_driver(hyperxl_driver** pdriver, bool verbose) {
#ifndef LIBXL_HAVE_BUILDINFO_KERNEL
return -1;
#else
hyperxl_driver *driver;
const libxl_version_info* version = NULL;
uint32_t mem = 0;
xentoollog_level log_level = XTL_INFO;
*pdriver = (hyperxl_driver*)malloc(sizeof(hyperxl_driver));
if ( *pdriver == NULL ) {
return -1;
}
driver = *pdriver;
if (verbose) {
log_level = XTL_DEBUG;
}
driver->logger = (xentoollog_logger*)xtl_createlogger_hyperxl(log_level, 0);
if (driver->logger == NULL) {
goto release_driver;
}
if(libxl_ctx_alloc(&driver->ctx, LIBXL_VERSION, 0, driver->logger)) {
goto close_logger;
}
libxl_childproc_setmode(driver->ctx, &libxl_child_hooks, driver->ctx);
version = libxl_get_version_info(driver->ctx);
if (version == NULL) {
goto free_ctx;
}
driver->version = version->xen_version_major * 1000000 + version->xen_version_minor * 1000;
driver->capabilities = strdup(version->capabilities);
if(libxl_get_free_memory(driver->ctx, &mem)) {
goto free_ctx;
}
libxl_event_register_callbacks(driver->ctx, &ev_hooks, driver);
return 0;
free_ctx:
libxl_ctx_free(driver->ctx);
close_logger:
xtl_logger_destroy(driver->logger);
release_driver:
free(driver);
driver = NULL;
return -1;
#endif //LIBXL_HAVE_BUILDINFO_KERNEL
}
libxlDriverConfigPtr
libxlDriverConfigNew(void)
{
libxlDriverConfigPtr cfg;
char *log_file = NULL;
char ebuf[1024];
unsigned int free_mem;
if (libxlConfigInitialize() < 0)
return NULL;
if (!(cfg = virObjectNew(libxlDriverConfigClass)))
return NULL;
if (VIR_STRDUP(cfg->configDir, LIBXL_CONFIG_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->autostartDir, LIBXL_AUTOSTART_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->logDir, LIBXL_LOG_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->stateDir, LIBXL_STATE_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->libDir, LIBXL_LIB_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->saveDir, LIBXL_SAVE_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->autoDumpDir, LIBXL_DUMP_DIR) < 0)
goto error;
if (virAsprintf(&log_file, "%s/libxl-driver.log", cfg->logDir) < 0)
goto error;
if (virFileMakePath(cfg->logDir) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create log dir '%s': %s"),
cfg->logDir,
virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if ((cfg->logger_file = fopen(log_file, "a")) == NULL) {
VIR_ERROR(_("Failed to create log file '%s': %s"),
log_file, virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
VIR_FREE(log_file);
cfg->logger =
(xentoollog_logger *)xtl_createlogger_stdiostream(cfg->logger_file,
XTL_DEBUG, 0);
if (!cfg->logger) {
VIR_ERROR(_("cannot create logger for libxenlight, disabling driver"));
goto error;
}
if (libxl_ctx_alloc(&cfg->ctx, LIBXL_VERSION, 0, cfg->logger)) {
VIR_ERROR(_("cannot initialize libxenlight context, probably not "
"running in a Xen Dom0, disabling driver"));
goto error;
}
if ((cfg->verInfo = libxl_get_version_info(cfg->ctx)) == NULL) {
VIR_ERROR(_("cannot version information from libxenlight, "
"disabling driver"));
goto error;
}
cfg->version = (cfg->verInfo->xen_version_major * 1000000) +
(cfg->verInfo->xen_version_minor * 1000);
/* This will fill xenstore info about free and dom0 memory if missing,
* should be called before starting first domain */
if (libxl_get_free_memory(cfg->ctx, &free_mem)) {
VIR_ERROR(_("Unable to configure libxl's memory management parameters"));
goto error;
}
/* setup autoballoon */
if (libxlGetAutoballoonConf(cfg, &cfg->autoballoon) < 0)
goto error;
return cfg;
error:
VIR_FREE(log_file);
virObjectUnref(cfg);
return NULL;
}
