| /* |
| * Test code for x86 CPUID and Topology functions |
| * |
| * Copyright (c) 2012 Red Hat Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include <glib.h> |
| |
| #include "hw/i386/topology.h" |
| |
| static void test_topo_bits(void) |
| { |
| /* simple tests for 1 thread per core, 1 core per socket */ |
| g_assert_cmpuint(apicid_smt_width(1, 1), ==, 0); |
| g_assert_cmpuint(apicid_core_width(1, 1), ==, 0); |
| |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 0), ==, 0); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1), ==, 1); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 2), ==, 2); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 3), ==, 3); |
| |
| |
| /* Test field width calculation for multiple values |
| */ |
| g_assert_cmpuint(apicid_smt_width(1, 2), ==, 1); |
| g_assert_cmpuint(apicid_smt_width(1, 3), ==, 2); |
| g_assert_cmpuint(apicid_smt_width(1, 4), ==, 2); |
| |
| g_assert_cmpuint(apicid_smt_width(1, 14), ==, 4); |
| g_assert_cmpuint(apicid_smt_width(1, 15), ==, 4); |
| g_assert_cmpuint(apicid_smt_width(1, 16), ==, 4); |
| g_assert_cmpuint(apicid_smt_width(1, 17), ==, 5); |
| |
| |
| g_assert_cmpuint(apicid_core_width(30, 2), ==, 5); |
| g_assert_cmpuint(apicid_core_width(31, 2), ==, 5); |
| g_assert_cmpuint(apicid_core_width(32, 2), ==, 5); |
| g_assert_cmpuint(apicid_core_width(33, 2), ==, 6); |
| |
| |
| /* build a weird topology and see if IDs are calculated correctly |
| */ |
| |
| /* This will use 2 bits for thread ID and 3 bits for core ID |
| */ |
| g_assert_cmpuint(apicid_smt_width(6, 3), ==, 2); |
| g_assert_cmpuint(apicid_core_width(6, 3), ==, 3); |
| g_assert_cmpuint(apicid_pkg_offset(6, 3), ==, 5); |
| |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 0), ==, 0); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1), ==, 1); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2), ==, 2); |
| |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 0), ==, |
| (1 << 2) | 0); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 1), ==, |
| (1 << 2) | 1); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 2), ==, |
| (1 << 2) | 2); |
| |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 0), ==, |
| (2 << 2) | 0); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 1), ==, |
| (2 << 2) | 1); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 2), ==, |
| (2 << 2) | 2); |
| |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 0), ==, |
| (5 << 2) | 0); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 1), ==, |
| (5 << 2) | 1); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 2), ==, |
| (5 << 2) | 2); |
| |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 6 * 3 + 0 * 3 + 0), ==, |
| (1 << 5)); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 6 * 3 + 1 * 3 + 1), ==, |
| (1 << 5) | (1 << 2) | 1); |
| g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 3 * 6 * 3 + 5 * 3 + 2), ==, |
| (3 << 5) | (5 << 2) | 2); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| g_test_init(&argc, &argv, NULL); |
| |
| g_test_add_func("/cpuid/topology/basic", test_topo_bits); |
| |
| g_test_run(); |
| |
| return 0; |
| } |