| /* |
| * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2019 SAP SE. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "runtime/os.hpp" |
| #include "utilities/virtualizationSupport.hpp" |
| |
| static void *dlHandle = NULL; |
| |
| static GuestLib_StatGet_t GuestLib_StatGet = NULL; |
| static GuestLib_StatFree_t GuestLib_StatFree = NULL; |
| |
| static bool has_host_information = false; |
| static bool has_resource_information = false; |
| |
| // host + resource information; avoid the session and other special info vectors |
| static char host_information[300]; |
| static char extended_resource_info_at_startup[600]; |
| |
| void VirtualizationSupport::initialize() { |
| if (!ExtensiveErrorReports) return; |
| |
| // open vmguestlib and bind SDK functions |
| char ebuf[1024]; |
| dlHandle = os::dll_load("vmGuestLib", ebuf, sizeof ebuf); |
| |
| #ifdef LINUX |
| if (dlHandle == NULL) { |
| // the open-vm-tools have a different guest lib name |
| // on some distros e.g. SLES12 the open-vm-tools are the default, |
| // so use the different libname as a fallback |
| dlHandle = os::dll_load("/usr/lib64/libguestlib.so.0", ebuf, sizeof ebuf); |
| } |
| #endif |
| if (dlHandle == NULL) { |
| return; |
| } |
| |
| GuestLib_StatGet = CAST_TO_FN_PTR(GuestLib_StatGet_t, os::dll_lookup(dlHandle, "VMGuestLib_StatGet")); |
| GuestLib_StatFree = CAST_TO_FN_PTR(GuestLib_StatFree_t, os::dll_lookup(dlHandle, "VMGuestLib_StatFree")); |
| |
| if (GuestLib_StatGet != NULL && GuestLib_StatFree != NULL) { |
| char* result_info = NULL; |
| size_t result_size = 0; |
| VMGuestLibError sg_error = GuestLib_StatGet("text", "resources", &result_info, &result_size); |
| if (sg_error == VMGUESTLIB_ERROR_SUCCESS) { |
| has_resource_information = true; |
| os::snprintf(extended_resource_info_at_startup, sizeof(extended_resource_info_at_startup), "%s", result_info); |
| GuestLib_StatFree(result_info, result_size); |
| } |
| sg_error = GuestLib_StatGet("text", "host", &result_info, &result_size); |
| if (sg_error == VMGUESTLIB_ERROR_SUCCESS) { |
| has_host_information = true; |
| os::snprintf(host_information, sizeof(host_information), "%s", result_info); |
| GuestLib_StatFree(result_info, result_size); |
| } |
| } |
| } |
| |
| void VirtualizationSupport::print_virtualization_info(outputStream* st) { |
| if (has_host_information) { |
| st->print_cr("vSphere host information:"); |
| st->print_cr("%s", host_information); |
| } |
| // resource info at startup |
| if (has_resource_information) { |
| st->print_cr("vSphere resource information collected at VM startup:"); |
| st->print_cr("%s", extended_resource_info_at_startup); |
| } |
| // current resource info |
| if (GuestLib_StatGet != NULL && GuestLib_StatFree != NULL) { |
| char* result_info = NULL; |
| size_t result_size = 0; |
| VMGuestLibError sg_error = GuestLib_StatGet("text", "resources", &result_info, &result_size); |
| if (sg_error == VMGUESTLIB_ERROR_SUCCESS) { |
| st->print_cr("vSphere resource information available now:"); |
| st->print_cr("%s", result_info); |
| GuestLib_StatFree(result_info, result_size); |
| } |
| } |
| } |
| |