Now that we have a generic parser smp_parse(), let's add an unit
test for the code. All possible valid/invalid SMP configurations
that the user can specify are covered.
Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
---
MAINTAINERS | 1 +
tests/unit/meson.build | 1 +
tests/unit/test-smp-parse.c | 613 ++++++++++++++++++++++++++++++++++++
3 files changed, 615 insertions(+)
create mode 100644 tests/unit/test-smp-parse.c
diff --git a/MAINTAINERS b/MAINTAINERS
index dc9091c1d7..b5a5b1469b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1632,6 +1632,7 @@ F: include/hw/core/cpu.h
F: include/hw/core/smp.h
F: include/hw/cpu/cluster.h
F: include/sysemu/numa.h
+F: tests/unit/test-smp-parse.c
T: git https://gitlab.com/ehabkost/qemu.git machine-next
Xtensa Machines
diff --git a/tests/unit/meson.build b/tests/unit/meson.build
index 7c297d7e5c..0382669fcf 100644
--- a/tests/unit/meson.build
+++ b/tests/unit/meson.build
@@ -45,6 +45,7 @@ tests = {
'test-uuid': [],
'ptimer-test': ['ptimer-test-stubs.c', meson.project_source_root() / 'hw/core/ptimer.c'],
'test-qapi-util': [],
+ 'test-smp-parse': [qom],
}
if have_system or have_tools
diff --git a/tests/unit/test-smp-parse.c b/tests/unit/test-smp-parse.c
new file mode 100644
index 0000000000..7be258171e
--- /dev/null
+++ b/tests/unit/test-smp-parse.c
@@ -0,0 +1,613 @@
+/*
+ * SMP parsing unit-tests
+ *
+ * Copyright (c) 2021 Huawei Technologies Co., Ltd
+ *
+ * Authors:
+ * Yanan Wang <wangyanan55@huawei.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qom/object.h"
+#include "qemu/module.h"
+#include "qapi/error.h"
+
+#include "hw/boards.h"
+#include "hw/core/smp.h"
+
+#define T true
+#define F false
+
+#define MIN_CPUS 1 /* set the min CPUs supported by the machine as 1 */
+#define MAX_CPUS 512 /* set the max CPUs supported by the machine as 512 */
+
+/*
+ * Used to define the generic 3-level CPU topology hierarchy
+ * -sockets/cores/threads
+ */
+#define SMP_CONFIG_GENERIC(ha, a, hb, b, hc, c, hd, d, he, e) \
+ { \
+ .has_cpus = ha, .cpus = a, \
+ .has_sockets = hb, .sockets = b, \
+ .has_cores = hc, .cores = c, \
+ .has_threads = hd, .threads = d, \
+ .has_maxcpus = he, .maxcpus = e, \
+ }
+
+#define CPU_TOPOLOGY_GENERIC(a, b, c, d, e) \
+ { \
+ .cpus = a, \
+ .sockets = b, \
+ .cores = c, \
+ .threads = d, \
+ .max_cpus = e, \
+ }
+
+/*
+ * Currently a 4-level topology hierarchy is supported on PC machines
+ * -sockets/dies/cores/threads
+ */
+#define SMP_CONFIG_WITH_DIES(ha, a, hb, b, hc, c, hd, d, he, e, hf, f) \
+ { \
+ .has_cpus = ha, .cpus = a, \
+ .has_sockets = hb, .sockets = b, \
+ .has_dies = hc, .dies = c, \
+ .has_cores = hd, .cores = d, \
+ .has_threads = he, .threads = e, \
+ .has_maxcpus = hf, .maxcpus = f, \
+ }
+
+#define CPU_TOPOLOGY_WITH_DIES(a, b, c, d, e, f) \
+ { \
+ .cpus = a, \
+ .sockets = b, \
+ .dies = c, \
+ .cores = d, \
+ .threads = e, \
+ .max_cpus = f, \
+ }
+
+/**
+ * @config - the given SMP configuration
+ * @expect_prefer_sockets - the expected parsing result for the
+ * valid configuration, when sockets are preferred over cores
+ * @expect_prefer_cores - the expected parsing result for the
+ * valid configuration, when cores are preferred over sockets
+ * @expect_error - the expected error report when the given
+ * configuration is invalid
+ */
+typedef struct SMPTestData {
+ SMPConfiguration config;
+ CpuTopology expect_prefer_sockets;
+ CpuTopology expect_prefer_cores;
+ const char *expect_error;
+} SMPTestData;
+
+/* Type info of the tested machine */
+static const TypeInfo smp_machine_info = {
+ .name = TYPE_MACHINE,
+ .parent = TYPE_OBJECT,
+ .class_size = sizeof(MachineClass),
+ .instance_size = sizeof(MachineState),
+};
+
+/*
+ * List all the possible valid sub-collections of the generic 5
+ * topology parameters (i.e. cpus/maxcpus/sockets/cores/threads),
+ * then test the automatic calculation algorithm of the missing
+ * values in the parser.
+ */
+static struct SMPTestData data_generic_valid[] = {
+ {
+ /* config: no configuration provided
+ * expect: cpus=1,sockets=1,cores=1,threads=1,maxcpus=1 */
+ .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, F, 0, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(1, 1, 1, 1, 1),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(1, 1, 1, 1, 1),
+ }, {
+ /* config: -smp 8
+ * prefer_sockets: cpus=8,sockets=8,cores=1,threads=1,maxcpus=8
+ * prefer_cores: cpus=8,sockets=1,cores=8,threads=1,maxcpus=8 */
+ .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, F, 0, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 8, 1, 1, 8),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 8, 1, 8),
+ }, {
+ /* config: -smp sockets=2
+ * expect: cpus=2,sockets=2,cores=1,threads=1,maxcpus=2 */
+ .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, F, 0, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(2, 2, 1, 1, 2),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(2, 2, 1, 1, 2),
+ }, {
+ /* config: -smp cores=4
+ * expect: cpus=4,sockets=1,cores=4,threads=1,maxcpus=4 */
+ .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, F, 0, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(4, 1, 4, 1, 4),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(4, 1, 4, 1, 4),
+ }, {
+ /* config: -smp threads=2
+ * expect: cpus=2,sockets=1,cores=1,threads=2,maxcpus=2 */
+ .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, T, 2, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(2, 1, 1, 2, 2),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(2, 1, 1, 2, 2),
+ }, {
+ /* config: -smp maxcpus=16
+ * prefer_sockets: cpus=16,sockets=16,cores=1,threads=1,maxcpus=16
+ * prefer_cores: cpus=16,sockets=1,cores=16,threads=1,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, F, 0, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 16, 1, 1, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 1, 16, 1, 16),
+ }, {
+ /* config: -smp 8,sockets=2
+ * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
+ .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, F, 0, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
+ }, {
+ /* config: -smp 8,cores=4
+ * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
+ .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, F, 0, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
+ }, {
+ /* config: -smp 8,threads=2
+ * prefer_sockets: cpus=8,sockets=4,cores=1,threads=2,maxcpus=8
+ * prefer_cores: cpus=8,sockets=1,cores=4,threads=2,maxcpus=8 */
+ .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, T, 2, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 4, 1, 2, 8),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
+ }, {
+ /* config: -smp 8,maxcpus=16
+ * prefer_sockets: cpus=8,sockets=16,cores=1,threads=1,maxcpus=16
+ * prefer_cores: cpus=8,sockets=1,cores=16,threads=1,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, F, 0, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 16, 1, 1, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 16, 1, 16),
+ }, {
+ /* config: -smp sockets=2,cores=4
+ * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
+ .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, F, 0, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
+ }, {
+ /* config: -smp sockets=2,threads=2
+ * expect: cpus=4,sockets=2,cores=1,threads=2,maxcpus=4 */
+ .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, T, 2, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(4, 2, 1, 2, 4),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(4, 2, 1, 2, 4),
+ }, {
+ /* config: -smp sockets=2,maxcpus=16
+ * expect: cpus=16,sockets=2,cores=8,threads=1,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, F, 0, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 8, 1, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 8, 1, 16),
+ }, {
+ /* config: -smp cores=4,threads=2
+ * expect: cpus=8,sockets=1,cores=4,threads=2,maxcpus=8 */
+ .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, T, 2, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
+ }, {
+ /* config: -smp cores=4,maxcpus=16
+ * expect: cpus=16,sockets=4,cores=4,threads=1,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, F, 0, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 4, 4, 1, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 4, 4, 1, 16),
+ }, {
+ /* config: -smp threads=2,maxcpus=16
+ * prefer_sockets: cpus=16,sockets=8,cores=1,threads=2,maxcpus=16
+ * prefer_cores: cpus=16,sockets=1,cores=8,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, T, 2, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 8, 1, 2, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 1, 8, 2, 16),
+ }, {
+ /* config: -smp 8,sockets=2,cores=4
+ * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
+ .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, F, 0, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
+ }, {
+ /* config: -smp 8,sockets=2,threads=2
+ * expect: cpus=8,sockets=2,cores=2,threads=2,maxcpus=8 */
+ .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, T, 2, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 2, 2, 8),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 2, 2, 8),
+ }, {
+ /* config: -smp 8,sockets=2,maxcpus=16
+ * expect: cpus=8,sockets=2,cores=8,threads=1,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, F, 0, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 8, 1, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 8, 1, 16),
+ }, {
+ /* config: -smp 8,cores=4,threads=2
+ * expect: cpus=8,sockets=1,cores=4,threads=2,maxcpus=8 */
+ .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, T, 2, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
+ }, {
+ /* config: -smp 8,cores=4,maxcpus=16
+ * expect: cpus=8,sockets=4,cores=4,threads=1,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, F, 0, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 4, 4, 1, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 4, 4, 1, 16),
+ }, {
+ /* config: -smp 8,threads=2,maxcpus=16
+ * prefer_sockets: cpus=8,sockets=8,cores=1,threads=2,maxcpus=16
+ * prefer_cores: cpus=8,sockets=1,cores=8,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, T, 2, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 8, 1, 2, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 8, 2, 16),
+ }, {
+ /* config: -smp sockets=2,cores=4,threads=2
+ * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, T, 2, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
+ }, {
+ /* config: -smp sockets=2,cores=4,maxcpus=16
+ * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, F, 0, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
+ }, {
+ /* config: -smp sockets=2,threads=2,maxcpus=16
+ * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, T, 2, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
+ }, {
+ /* config: -smp cores=4,threads=2,maxcpus=16
+ * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, T, 2, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
+ }, {
+ /* config: -smp 8,sockets=2,cores=4,threads=1
+ * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
+ .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, T, 1, F, 0),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
+ }, {
+ /* config: -smp 8,sockets=2,cores=4,maxcpus=16
+ * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, F, 0, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
+ }, {
+ /* config: -smp 8,sockets=2,threads=2,maxcpus=16
+ * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, T, 2, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
+ }, {
+ /* config: -smp 8,cores=4,threads=2,maxcpus=16
+ * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, T, 2, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
+ }, {
+ /* config: -smp sockets=2,cores=4,threads=2,maxcpus=16
+ * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, T, 2, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
+ }, {
+ /* config: -smp 8,sockets=2,cores=4,threads=2,maxcpus=16
+ * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, T, 2, T, 16),
+ .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
+ .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
+ },
+};
+
+static struct SMPTestData data_generic_invalid[] = {
+ {
+ /* config: -smp 2,dies=2 */
+ .config = SMP_CONFIG_WITH_DIES(T, 2, F, 0, T, 2, F, 0, F, 0, F, 0),
+ .expect_error = "dies not supported by this machine's CPU topology",
+ }, {
+ /* config: -smp 8,sockets=2,cores=4,threads=2,maxcpus=8 */
+ .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, T, 2, T, 8),
+ .expect_error = "Invalid CPU topology: "
+ "product of the hierarchy must match maxcpus: "
+ "sockets (2) * cores (4) * threads (2) "
+ "!= maxcpus (8)",
+ }, {
+ /* config: -smp 18,sockets=2,cores=4,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_GENERIC(T, 18, T, 2, T, 4, T, 2, T, 16),
+ .expect_error = "Invalid CPU topology: "
+ "maxcpus must be equal to or greater than smp: "
+ "sockets (2) * cores (4) * threads (2) "
+ "== maxcpus (16) < smp_cpus (18)",
+ }, {
+ /* config: -smp 1
+ * should tweak the supported min CPUs to 2 for testing */
+ .config = SMP_CONFIG_GENERIC(T, 1, F, 0, F, 0, F, 0, F, 0),
+ .expect_error = "Invalid SMP CPUs 1. The min CPUs supported "
+ "by machine '(null)' is 2",
+ }, {
+ /* config: -smp 512
+ * should tweak the supported max CPUs to 511 for testing */
+ .config = SMP_CONFIG_GENERIC(T, 512, F, 0, F, 0, F, 0, F, 0),
+ .expect_error = "Invalid SMP CPUs 512. The max CPUs supported "
+ "by machine '(null)' is 511",
+ },
+};
+
+static struct SMPTestData data_with_dies_invalid[] = {
+ {
+ /* config: -smp 16,sockets=2,dies=2,cores=4,threads=2,maxcpus=16 */
+ .config = SMP_CONFIG_WITH_DIES(T, 16, T, 2, T, 2, T, 4, T, 2, T, 16),
+ .expect_error = "Invalid CPU topology: "
+ "product of the hierarchy must match maxcpus: "
+ "sockets (2) * dies (2) * cores (4) * threads (2) "
+ "!= maxcpus (16)",
+ }, {
+ /* config: -smp 34,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
+ .config = SMP_CONFIG_WITH_DIES(T, 34, T, 2, T, 2, T, 4, T, 2, T, 32),
+ .expect_error = "Invalid CPU topology: "
+ "maxcpus must be equal to or greater than smp: "
+ "sockets (2) * dies (2) * cores (4) * threads (2) "
+ "== maxcpus (32) < smp_cpus (34)",
+ },
+};
+
+static char *smp_config_to_string(SMPConfiguration *config)
+{
+ return g_strdup_printf(
+ "(SMPConfiguration) {\n"
+ " .has_cpus = %5s, cpus = %ld,\n"
+ " .has_sockets = %5s, sockets = %ld,\n"
+ " .has_dies = %5s, dies = %ld,\n"
+ " .has_cores = %5s, cores = %ld,\n"
+ " .has_threads = %5s, threads = %ld,\n"
+ " .has_maxcpus = %5s, maxcpus = %ld,\n"
+ "}",
+ config->has_cpus ? "true" : "false", config->cpus,
+ config->has_sockets ? "true" : "false", config->sockets,
+ config->has_dies ? "true" : "false", config->dies,
+ config->has_cores ? "true" : "false", config->cores,
+ config->has_threads ? "true" : "false", config->threads,
+ config->has_maxcpus ? "true" : "false", config->maxcpus);
+}
+
+static char *cpu_topology_to_string(CpuTopology *topo)
+{
+ return g_strdup_printf(
+ "(CpuTopology) {\n"
+ " .cpus = %u,\n"
+ " .sockets = %u,\n"
+ " .dies = %u,\n"
+ " .cores = %u,\n"
+ " .threads = %u,\n"
+ " .max_cpus = %u,\n"
+ "}",
+ topo->cpus, topo->sockets, topo->dies,
+ topo->cores, topo->threads, topo->max_cpus);
+}
+
+static void check_parse(MachineState *ms, SMPConfiguration *config,
+ CpuTopology *expect_topo, const char *expect_err,
+ bool is_valid)
+{
+ g_autofree char *config_str = smp_config_to_string(config);
+ g_autofree char *expect_topo_str = cpu_topology_to_string(expect_topo);
+ g_autofree char *output_topo_str = NULL;
+ Error *err = NULL;
+
+ /* call the generic parser smp_parse() */
+ smp_parse(ms, config, &err);
+
+ output_topo_str = cpu_topology_to_string(&ms->smp);
+
+ /* when the configuration is supposed to be valid */
+ if (is_valid) {
+ if ((err == NULL) &&
+ (ms->smp.cpus == expect_topo->cpus) &&
+ (ms->smp.sockets == expect_topo->sockets) &&
+ (ms->smp.dies == expect_topo->dies) &&
+ (ms->smp.cores == expect_topo->cores) &&
+ (ms->smp.threads == expect_topo->threads) &&
+ (ms->smp.max_cpus == expect_topo->max_cpus)) {
+ return;
+ }
+
+ if (err != NULL) {
+ g_printerr("Test smp_parse failed!\n"
+ "Input configuration: %s\n"
+ "Should be valid: yes\n"
+ "Expected topology: %s\n\n"
+ "Result is valid: no\n"
+ "Result error report: %s\n",
+ config_str, expect_topo_str, error_get_pretty(err));
+ goto end;
+ }
+
+ g_printerr("Test smp_parse failed!\n"
+ "Input configuration: %s\n"
+ "Should be valid: yes\n"
+ "Expected topology: %s\n\n"
+ "Result is valid: yes\n"
+ "Output topology: %s\n",
+ config_str, expect_topo_str, output_topo_str);
+ goto end;
+ }
+
+ /* when the configuration is supposed to be invalid */
+ if (err != NULL) {
+ if (expect_err == NULL ||
+ g_str_equal(expect_err, error_get_pretty(err))) {
+ error_free(err);
+ return;
+ }
+
+ g_printerr("Test smp_parse failed!\n"
+ "Input configuration: %s\n"
+ "Should be valid: no\n"
+ "Expected error report: %s\n\n"
+ "Result is valid: no\n"
+ "Output error report: %s\n",
+ config_str, expect_err, error_get_pretty(err));
+ goto end;
+ }
+
+ g_printerr("Test smp_parse failed!\n"
+ "Input configuration: %s\n"
+ "Should be valid: no\n"
+ "Expected error report: %s\n\n"
+ "Result is valid: yes\n"
+ "Output topology: %s\n",
+ config_str, expect_err, output_topo_str);
+
+end:
+ if (err != NULL) {
+ error_free(err);
+ }
+
+ abort();
+}
+
+static void smp_parse_test(MachineState *ms, SMPTestData *data, bool is_valid)
+{
+ MachineClass *mc = MACHINE_GET_CLASS(ms);
+
+ mc->smp_props.prefer_sockets = true;
+ check_parse(ms, &data->config, &data->expect_prefer_sockets,
+ data->expect_error, is_valid);
+
+ mc->smp_props.prefer_sockets = false;
+ check_parse(ms, &data->config, &data->expect_prefer_cores,
+ data->expect_error, is_valid);
+}
+
+static void test_data_copy(SMPTestData *targ, SMPTestData *src)
+{
+ targ->config = src->config;
+ targ->expect_prefer_sockets = src->expect_prefer_sockets;
+ targ->expect_prefer_cores = src->expect_prefer_cores;
+ targ->expect_error = src->expect_error;
+}
+
+/* The parsed results of the unsupported parameters should be 1 */
+static void unsupported_params_init(MachineClass *mc, SMPTestData *data)
+{
+ if (!mc->smp_props.dies_supported) {
+ data->expect_prefer_sockets.dies = 1;
+ data->expect_prefer_cores.dies = 1;
+ }
+}
+
+/* Reset the related machine properties before each sub-test */
+static void smp_machine_class_init(MachineClass *mc)
+{
+ mc->min_cpus = MIN_CPUS;
+ mc->max_cpus = MAX_CPUS;
+
+ mc->smp_props.prefer_sockets = true;
+ mc->smp_props.dies_supported = false;
+}
+
+static void test_generic(void)
+{
+ Object *obj = object_new(TYPE_MACHINE);
+ MachineState *ms = MACHINE(obj);
+ MachineClass *mc = MACHINE_GET_CLASS(obj);
+ SMPTestData *data = &(SMPTestData){0};
+ int i;
+
+ smp_machine_class_init(mc);
+
+ for (i = 0; i < ARRAY_SIZE(data_generic_valid); i++) {
+ test_data_copy(data, &data_generic_valid[i]);
+ unsupported_params_init(mc, data);
+
+ smp_parse_test(ms, data, true);
+
+ /* Unsupported parameters can be provided with their values as 1 */
+ data->config.has_dies = true;
+ data->config.dies = 1;
+ smp_parse_test(ms, data, true);
+ }
+
+ /* Reset the supported min CPUs and max CPUs */
+ mc->min_cpus = 2;
+ mc->max_cpus = 511;
+
+ for (i = 0; i < ARRAY_SIZE(data_generic_invalid); i++) {
+ test_data_copy(data, &data_generic_invalid[i]);
+ unsupported_params_init(mc, data);
+
+ smp_parse_test(ms, data, false);
+ }
+
+ object_unref(obj);
+}
+
+static void test_with_dies(void)
+{
+ Object *obj = object_new(TYPE_MACHINE);
+ MachineState *ms = MACHINE(obj);
+ MachineClass *mc = MACHINE_GET_CLASS(obj);
+ SMPTestData *data = &(SMPTestData){0};
+ unsigned int num_dies = 2;
+ int i;
+
+ smp_machine_class_init(mc);
+ mc->smp_props.dies_supported = true;
+
+ for (i = 0; i < ARRAY_SIZE(data_generic_valid); i++) {
+ test_data_copy(data, &data_generic_valid[i]);
+ unsupported_params_init(mc, data);
+
+ /* when dies parameter is omitted, it will be set as 1 */
+ data->expect_prefer_sockets.dies = 1;
+ data->expect_prefer_cores.dies = 1;
+
+ smp_parse_test(ms, data, true);
+
+ /* when dies parameter is specified */
+ data->config.has_dies = true;
+ data->config.dies = num_dies;
+ if (data->config.has_cpus) {
+ data->config.cpus *= num_dies;
+ }
+ if (data->config.has_maxcpus) {
+ data->config.maxcpus *= num_dies;
+ }
+
+ data->expect_prefer_sockets.dies = num_dies;
+ data->expect_prefer_sockets.cpus *= num_dies;
+ data->expect_prefer_sockets.max_cpus *= num_dies;
+ data->expect_prefer_cores.dies = num_dies;
+ data->expect_prefer_cores.cpus *= num_dies;
+ data->expect_prefer_cores.max_cpus *= num_dies;
+
+ smp_parse_test(ms, data, true);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(data_with_dies_invalid); i++) {
+ test_data_copy(data, &data_with_dies_invalid[i]);
+ unsupported_params_init(mc, data);
+
+ smp_parse_test(ms, data, false);
+ }
+
+ object_unref(obj);
+}
+
+int main(int argc, char *argv[])
+{
+ g_test_init(&argc, &argv, NULL);
+
+ module_call_init(MODULE_INIT_QOM);
+ type_register_static(&smp_machine_info);
+
+ g_test_add_func("/test-smp-parse/generic", test_generic);
+ g_test_add_func("/test-smp-parse/with_dies", test_with_dies);
+
+ g_test_run();
+
+ return 0;
+}
--
2.19.1
On Sun, Oct 10, 2021 at 06:39:54PM +0800, Yanan Wang wrote:
> Now that we have a generic parser smp_parse(), let's add an unit
> test for the code. All possible valid/invalid SMP configurations
> that the user can specify are covered.
>
> Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
> ---
> MAINTAINERS | 1 +
> tests/unit/meson.build | 1 +
> tests/unit/test-smp-parse.c | 613 ++++++++++++++++++++++++++++++++++++
> 3 files changed, 615 insertions(+)
> create mode 100644 tests/unit/test-smp-parse.c
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index dc9091c1d7..b5a5b1469b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1632,6 +1632,7 @@ F: include/hw/core/cpu.h
> F: include/hw/core/smp.h
> F: include/hw/cpu/cluster.h
> F: include/sysemu/numa.h
> +F: tests/unit/test-smp-parse.c
> T: git https://gitlab.com/ehabkost/qemu.git machine-next
>
> Xtensa Machines
> diff --git a/tests/unit/meson.build b/tests/unit/meson.build
> index 7c297d7e5c..0382669fcf 100644
> --- a/tests/unit/meson.build
> +++ b/tests/unit/meson.build
> @@ -45,6 +45,7 @@ tests = {
> 'test-uuid': [],
> 'ptimer-test': ['ptimer-test-stubs.c', meson.project_source_root() / 'hw/core/ptimer.c'],
> 'test-qapi-util': [],
> + 'test-smp-parse': [qom],
> }
>
> if have_system or have_tools
> diff --git a/tests/unit/test-smp-parse.c b/tests/unit/test-smp-parse.c
> new file mode 100644
> index 0000000000..7be258171e
> --- /dev/null
> +++ b/tests/unit/test-smp-parse.c
> @@ -0,0 +1,613 @@
> +/*
> + * SMP parsing unit-tests
> + *
> + * Copyright (c) 2021 Huawei Technologies Co., Ltd
> + *
> + * Authors:
> + * Yanan Wang <wangyanan55@huawei.com>
> + *
> + * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
> + * See the COPYING.LIB file in the top-level directory.
> + */
> +
> +#include "qemu/osdep.h"
> +#include "qom/object.h"
> +#include "qemu/module.h"
> +#include "qapi/error.h"
> +
> +#include "hw/boards.h"
> +#include "hw/core/smp.h"
> +
> +#define T true
> +#define F false
> +
> +#define MIN_CPUS 1 /* set the min CPUs supported by the machine as 1 */
> +#define MAX_CPUS 512 /* set the max CPUs supported by the machine as 512 */
> +
> +/*
> + * Used to define the generic 3-level CPU topology hierarchy
> + * -sockets/cores/threads
> + */
> +#define SMP_CONFIG_GENERIC(ha, a, hb, b, hc, c, hd, d, he, e) \
> + { \
> + .has_cpus = ha, .cpus = a, \
> + .has_sockets = hb, .sockets = b, \
> + .has_cores = hc, .cores = c, \
> + .has_threads = hd, .threads = d, \
> + .has_maxcpus = he, .maxcpus = e, \
> + }
> +
> +#define CPU_TOPOLOGY_GENERIC(a, b, c, d, e) \
> + { \
> + .cpus = a, \
> + .sockets = b, \
> + .cores = c, \
> + .threads = d, \
> + .max_cpus = e, \
> + }
> +
> +/*
> + * Currently a 4-level topology hierarchy is supported on PC machines
> + * -sockets/dies/cores/threads
> + */
> +#define SMP_CONFIG_WITH_DIES(ha, a, hb, b, hc, c, hd, d, he, e, hf, f) \
> + { \
> + .has_cpus = ha, .cpus = a, \
> + .has_sockets = hb, .sockets = b, \
> + .has_dies = hc, .dies = c, \
> + .has_cores = hd, .cores = d, \
> + .has_threads = he, .threads = e, \
> + .has_maxcpus = hf, .maxcpus = f, \
> + }
> +
> +#define CPU_TOPOLOGY_WITH_DIES(a, b, c, d, e, f) \
> + { \
> + .cpus = a, \
> + .sockets = b, \
> + .dies = c, \
> + .cores = d, \
> + .threads = e, \
> + .max_cpus = f, \
> + }
> +
> +/**
> + * @config - the given SMP configuration
> + * @expect_prefer_sockets - the expected parsing result for the
> + * valid configuration, when sockets are preferred over cores
> + * @expect_prefer_cores - the expected parsing result for the
> + * valid configuration, when cores are preferred over sockets
> + * @expect_error - the expected error report when the given
> + * configuration is invalid
> + */
> +typedef struct SMPTestData {
> + SMPConfiguration config;
> + CpuTopology expect_prefer_sockets;
> + CpuTopology expect_prefer_cores;
> + const char *expect_error;
> +} SMPTestData;
> +
> +/* Type info of the tested machine */
> +static const TypeInfo smp_machine_info = {
> + .name = TYPE_MACHINE,
> + .parent = TYPE_OBJECT,
> + .class_size = sizeof(MachineClass),
> + .instance_size = sizeof(MachineState),
> +};
> +
> +/*
> + * List all the possible valid sub-collections of the generic 5
> + * topology parameters (i.e. cpus/maxcpus/sockets/cores/threads),
> + * then test the automatic calculation algorithm of the missing
> + * values in the parser.
> + */
> +static struct SMPTestData data_generic_valid[] = {
> + {
> + /* config: no configuration provided
> + * expect: cpus=1,sockets=1,cores=1,threads=1,maxcpus=1 */
> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, F, 0, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(1, 1, 1, 1, 1),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(1, 1, 1, 1, 1),
> + }, {
> + /* config: -smp 8
> + * prefer_sockets: cpus=8,sockets=8,cores=1,threads=1,maxcpus=8
> + * prefer_cores: cpus=8,sockets=1,cores=8,threads=1,maxcpus=8 */
> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, F, 0, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 8, 1, 1, 8),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 8, 1, 8),
> + }, {
> + /* config: -smp sockets=2
> + * expect: cpus=2,sockets=2,cores=1,threads=1,maxcpus=2 */
> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, F, 0, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(2, 2, 1, 1, 2),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(2, 2, 1, 1, 2),
> + }, {
> + /* config: -smp cores=4
> + * expect: cpus=4,sockets=1,cores=4,threads=1,maxcpus=4 */
> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, F, 0, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(4, 1, 4, 1, 4),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(4, 1, 4, 1, 4),
> + }, {
> + /* config: -smp threads=2
> + * expect: cpus=2,sockets=1,cores=1,threads=2,maxcpus=2 */
> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, T, 2, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(2, 1, 1, 2, 2),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(2, 1, 1, 2, 2),
> + }, {
> + /* config: -smp maxcpus=16
> + * prefer_sockets: cpus=16,sockets=16,cores=1,threads=1,maxcpus=16
> + * prefer_cores: cpus=16,sockets=1,cores=16,threads=1,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, F, 0, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 16, 1, 1, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 1, 16, 1, 16),
> + }, {
> + /* config: -smp 8,sockets=2
> + * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, F, 0, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
> + }, {
> + /* config: -smp 8,cores=4
> + * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, F, 0, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
> + }, {
> + /* config: -smp 8,threads=2
> + * prefer_sockets: cpus=8,sockets=4,cores=1,threads=2,maxcpus=8
> + * prefer_cores: cpus=8,sockets=1,cores=4,threads=2,maxcpus=8 */
> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, T, 2, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 4, 1, 2, 8),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
> + }, {
> + /* config: -smp 8,maxcpus=16
> + * prefer_sockets: cpus=8,sockets=16,cores=1,threads=1,maxcpus=16
> + * prefer_cores: cpus=8,sockets=1,cores=16,threads=1,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, F, 0, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 16, 1, 1, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 16, 1, 16),
> + }, {
> + /* config: -smp sockets=2,cores=4
> + * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, F, 0, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
> + }, {
> + /* config: -smp sockets=2,threads=2
> + * expect: cpus=4,sockets=2,cores=1,threads=2,maxcpus=4 */
> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, T, 2, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(4, 2, 1, 2, 4),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(4, 2, 1, 2, 4),
> + }, {
> + /* config: -smp sockets=2,maxcpus=16
> + * expect: cpus=16,sockets=2,cores=8,threads=1,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, F, 0, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 8, 1, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 8, 1, 16),
> + }, {
> + /* config: -smp cores=4,threads=2
> + * expect: cpus=8,sockets=1,cores=4,threads=2,maxcpus=8 */
> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, T, 2, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
> + }, {
> + /* config: -smp cores=4,maxcpus=16
> + * expect: cpus=16,sockets=4,cores=4,threads=1,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, F, 0, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 4, 4, 1, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 4, 4, 1, 16),
> + }, {
> + /* config: -smp threads=2,maxcpus=16
> + * prefer_sockets: cpus=16,sockets=8,cores=1,threads=2,maxcpus=16
> + * prefer_cores: cpus=16,sockets=1,cores=8,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, T, 2, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 8, 1, 2, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 1, 8, 2, 16),
> + }, {
> + /* config: -smp 8,sockets=2,cores=4
> + * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, F, 0, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
> + }, {
> + /* config: -smp 8,sockets=2,threads=2
> + * expect: cpus=8,sockets=2,cores=2,threads=2,maxcpus=8 */
> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, T, 2, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 2, 2, 8),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 2, 2, 8),
> + }, {
> + /* config: -smp 8,sockets=2,maxcpus=16
> + * expect: cpus=8,sockets=2,cores=8,threads=1,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, F, 0, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 8, 1, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 8, 1, 16),
> + }, {
> + /* config: -smp 8,cores=4,threads=2
> + * expect: cpus=8,sockets=1,cores=4,threads=2,maxcpus=8 */
> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, T, 2, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
> + }, {
> + /* config: -smp 8,cores=4,maxcpus=16
> + * expect: cpus=8,sockets=4,cores=4,threads=1,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, F, 0, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 4, 4, 1, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 4, 4, 1, 16),
> + }, {
> + /* config: -smp 8,threads=2,maxcpus=16
> + * prefer_sockets: cpus=8,sockets=8,cores=1,threads=2,maxcpus=16
> + * prefer_cores: cpus=8,sockets=1,cores=8,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, T, 2, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 8, 1, 2, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 8, 2, 16),
> + }, {
> + /* config: -smp sockets=2,cores=4,threads=2
> + * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, T, 2, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
> + }, {
> + /* config: -smp sockets=2,cores=4,maxcpus=16
> + * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, F, 0, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
> + }, {
> + /* config: -smp sockets=2,threads=2,maxcpus=16
> + * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, T, 2, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
> + }, {
> + /* config: -smp cores=4,threads=2,maxcpus=16
> + * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, T, 2, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
> + }, {
> + /* config: -smp 8,sockets=2,cores=4,threads=1
> + * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, T, 1, F, 0),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
> + }, {
> + /* config: -smp 8,sockets=2,cores=4,maxcpus=16
> + * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, F, 0, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
> + }, {
> + /* config: -smp 8,sockets=2,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, T, 2, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
> + }, {
> + /* config: -smp 8,cores=4,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, T, 2, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
> + }, {
> + /* config: -smp sockets=2,cores=4,threads=2,maxcpus=16
> + * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, T, 2, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
> + }, {
> + /* config: -smp 8,sockets=2,cores=4,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, T, 2, T, 16),
> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
> + },
> +};
> +
> +static struct SMPTestData data_generic_invalid[] = {
> + {
> + /* config: -smp 2,dies=2 */
> + .config = SMP_CONFIG_WITH_DIES(T, 2, F, 0, T, 2, F, 0, F, 0, F, 0),
> + .expect_error = "dies not supported by this machine's CPU topology",
> + }, {
> + /* config: -smp 8,sockets=2,cores=4,threads=2,maxcpus=8 */
> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, T, 2, T, 8),
> + .expect_error = "Invalid CPU topology: "
> + "product of the hierarchy must match maxcpus: "
> + "sockets (2) * cores (4) * threads (2) "
> + "!= maxcpus (8)",
> + }, {
> + /* config: -smp 18,sockets=2,cores=4,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_GENERIC(T, 18, T, 2, T, 4, T, 2, T, 16),
> + .expect_error = "Invalid CPU topology: "
> + "maxcpus must be equal to or greater than smp: "
> + "sockets (2) * cores (4) * threads (2) "
> + "== maxcpus (16) < smp_cpus (18)",
> + }, {
> + /* config: -smp 1
> + * should tweak the supported min CPUs to 2 for testing */
> + .config = SMP_CONFIG_GENERIC(T, 1, F, 0, F, 0, F, 0, F, 0),
> + .expect_error = "Invalid SMP CPUs 1. The min CPUs supported "
> + "by machine '(null)' is 2",
> + }, {
> + /* config: -smp 512
> + * should tweak the supported max CPUs to 511 for testing */
> + .config = SMP_CONFIG_GENERIC(T, 512, F, 0, F, 0, F, 0, F, 0),
> + .expect_error = "Invalid SMP CPUs 512. The max CPUs supported "
> + "by machine '(null)' is 511",
> + },
> +};
> +
> +static struct SMPTestData data_with_dies_invalid[] = {
> + {
> + /* config: -smp 16,sockets=2,dies=2,cores=4,threads=2,maxcpus=16 */
> + .config = SMP_CONFIG_WITH_DIES(T, 16, T, 2, T, 2, T, 4, T, 2, T, 16),
> + .expect_error = "Invalid CPU topology: "
> + "product of the hierarchy must match maxcpus: "
> + "sockets (2) * dies (2) * cores (4) * threads (2) "
> + "!= maxcpus (16)",
> + }, {
> + /* config: -smp 34,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = SMP_CONFIG_WITH_DIES(T, 34, T, 2, T, 2, T, 4, T, 2, T, 32),
> + .expect_error = "Invalid CPU topology: "
> + "maxcpus must be equal to or greater than smp: "
> + "sockets (2) * dies (2) * cores (4) * threads (2) "
> + "== maxcpus (32) < smp_cpus (34)",
> + },
> +};
> +
> +static char *smp_config_to_string(SMPConfiguration *config)
> +{
> + return g_strdup_printf(
> + "(SMPConfiguration) {\n"
> + " .has_cpus = %5s, cpus = %ld,\n"
> + " .has_sockets = %5s, sockets = %ld,\n"
> + " .has_dies = %5s, dies = %ld,\n"
> + " .has_cores = %5s, cores = %ld,\n"
> + " .has_threads = %5s, threads = %ld,\n"
> + " .has_maxcpus = %5s, maxcpus = %ld,\n"
> + "}",
> + config->has_cpus ? "true" : "false", config->cpus,
> + config->has_sockets ? "true" : "false", config->sockets,
> + config->has_dies ? "true" : "false", config->dies,
> + config->has_cores ? "true" : "false", config->cores,
> + config->has_threads ? "true" : "false", config->threads,
> + config->has_maxcpus ? "true" : "false", config->maxcpus);
> +}
> +
> +static char *cpu_topology_to_string(CpuTopology *topo)
> +{
> + return g_strdup_printf(
> + "(CpuTopology) {\n"
> + " .cpus = %u,\n"
> + " .sockets = %u,\n"
> + " .dies = %u,\n"
> + " .cores = %u,\n"
> + " .threads = %u,\n"
> + " .max_cpus = %u,\n"
> + "}",
> + topo->cpus, topo->sockets, topo->dies,
> + topo->cores, topo->threads, topo->max_cpus);
> +}
> +
> +static void check_parse(MachineState *ms, SMPConfiguration *config,
> + CpuTopology *expect_topo, const char *expect_err,
> + bool is_valid)
> +{
> + g_autofree char *config_str = smp_config_to_string(config);
> + g_autofree char *expect_topo_str = cpu_topology_to_string(expect_topo);
> + g_autofree char *output_topo_str = NULL;
> + Error *err = NULL;
> +
> + /* call the generic parser smp_parse() */
> + smp_parse(ms, config, &err);
> +
> + output_topo_str = cpu_topology_to_string(&ms->smp);
> +
> + /* when the configuration is supposed to be valid */
> + if (is_valid) {
> + if ((err == NULL) &&
> + (ms->smp.cpus == expect_topo->cpus) &&
> + (ms->smp.sockets == expect_topo->sockets) &&
> + (ms->smp.dies == expect_topo->dies) &&
> + (ms->smp.cores == expect_topo->cores) &&
> + (ms->smp.threads == expect_topo->threads) &&
> + (ms->smp.max_cpus == expect_topo->max_cpus)) {
> + return;
> + }
> +
> + if (err != NULL) {
> + g_printerr("Test smp_parse failed!\n"
> + "Input configuration: %s\n"
> + "Should be valid: yes\n"
> + "Expected topology: %s\n\n"
> + "Result is valid: no\n"
> + "Result error report: %s\n",
> + config_str, expect_topo_str, error_get_pretty(err));
> + goto end;
> + }
> +
> + g_printerr("Test smp_parse failed!\n"
> + "Input configuration: %s\n"
> + "Should be valid: yes\n"
> + "Expected topology: %s\n\n"
> + "Result is valid: yes\n"
> + "Output topology: %s\n",
> + config_str, expect_topo_str, output_topo_str);
> + goto end;
> + }
> +
> + /* when the configuration is supposed to be invalid */
> + if (err != NULL) {
> + if (expect_err == NULL ||
> + g_str_equal(expect_err, error_get_pretty(err))) {
> + error_free(err);
> + return;
> + }
> +
> + g_printerr("Test smp_parse failed!\n"
> + "Input configuration: %s\n"
> + "Should be valid: no\n"
> + "Expected error report: %s\n\n"
> + "Result is valid: no\n"
> + "Output error report: %s\n",
> + config_str, expect_err, error_get_pretty(err));
> + goto end;
> + }
> +
> + g_printerr("Test smp_parse failed!\n"
> + "Input configuration: %s\n"
> + "Should be valid: no\n"
> + "Expected error report: %s\n\n"
> + "Result is valid: yes\n"
> + "Output topology: %s\n",
> + config_str, expect_err, output_topo_str);
> +
> +end:
> + if (err != NULL) {
> + error_free(err);
> + }
> +
> + abort();
> +}
> +
> +static void smp_parse_test(MachineState *ms, SMPTestData *data, bool is_valid)
> +{
> + MachineClass *mc = MACHINE_GET_CLASS(ms);
> +
> + mc->smp_props.prefer_sockets = true;
> + check_parse(ms, &data->config, &data->expect_prefer_sockets,
> + data->expect_error, is_valid);
> +
> + mc->smp_props.prefer_sockets = false;
> + check_parse(ms, &data->config, &data->expect_prefer_cores,
> + data->expect_error, is_valid);
> +}
> +
> +static void test_data_copy(SMPTestData *targ, SMPTestData *src)
> +{
> + targ->config = src->config;
> + targ->expect_prefer_sockets = src->expect_prefer_sockets;
> + targ->expect_prefer_cores = src->expect_prefer_cores;
> + targ->expect_error = src->expect_error;
Why do we need this function? targ and src are of the same type. We can
just use '='.
> +}
> +
> +/* The parsed results of the unsupported parameters should be 1 */
> +static void unsupported_params_init(MachineClass *mc, SMPTestData *data)
> +{
> + if (!mc->smp_props.dies_supported) {
> + data->expect_prefer_sockets.dies = 1;
> + data->expect_prefer_cores.dies = 1;
> + }
> +}
> +
> +/* Reset the related machine properties before each sub-test */
> +static void smp_machine_class_init(MachineClass *mc)
> +{
> + mc->min_cpus = MIN_CPUS;
> + mc->max_cpus = MAX_CPUS;
> +
> + mc->smp_props.prefer_sockets = true;
> + mc->smp_props.dies_supported = false;
> +}
> +
> +static void test_generic(void)
> +{
> + Object *obj = object_new(TYPE_MACHINE);
> + MachineState *ms = MACHINE(obj);
> + MachineClass *mc = MACHINE_GET_CLASS(obj);
> + SMPTestData *data = &(SMPTestData){0};
> + int i;
> +
> + smp_machine_class_init(mc);
> +
> + for (i = 0; i < ARRAY_SIZE(data_generic_valid); i++) {
> + test_data_copy(data, &data_generic_valid[i]);
> + unsupported_params_init(mc, data);
> +
> + smp_parse_test(ms, data, true);
> +
> + /* Unsupported parameters can be provided with their values as 1 */
> + data->config.has_dies = true;
> + data->config.dies = 1;
> + smp_parse_test(ms, data, true);
> + }
> +
> + /* Reset the supported min CPUs and max CPUs */
> + mc->min_cpus = 2;
> + mc->max_cpus = 511;
> +
> + for (i = 0; i < ARRAY_SIZE(data_generic_invalid); i++) {
> + test_data_copy(data, &data_generic_invalid[i]);
> + unsupported_params_init(mc, data);
> +
> + smp_parse_test(ms, data, false);
> + }
> +
> + object_unref(obj);
> +}
> +
> +static void test_with_dies(void)
> +{
> + Object *obj = object_new(TYPE_MACHINE);
> + MachineState *ms = MACHINE(obj);
> + MachineClass *mc = MACHINE_GET_CLASS(obj);
> + SMPTestData *data = &(SMPTestData){0};
> + unsigned int num_dies = 2;
> + int i;
> +
> + smp_machine_class_init(mc);
> + mc->smp_props.dies_supported = true;
> +
> + for (i = 0; i < ARRAY_SIZE(data_generic_valid); i++) {
> + test_data_copy(data, &data_generic_valid[i]);
> + unsupported_params_init(mc, data);
> +
> + /* when dies parameter is omitted, it will be set as 1 */
> + data->expect_prefer_sockets.dies = 1;
> + data->expect_prefer_cores.dies = 1;
> +
> + smp_parse_test(ms, data, true);
> +
> + /* when dies parameter is specified */
> + data->config.has_dies = true;
> + data->config.dies = num_dies;
> + if (data->config.has_cpus) {
> + data->config.cpus *= num_dies;
> + }
> + if (data->config.has_maxcpus) {
> + data->config.maxcpus *= num_dies;
> + }
> +
> + data->expect_prefer_sockets.dies = num_dies;
> + data->expect_prefer_sockets.cpus *= num_dies;
> + data->expect_prefer_sockets.max_cpus *= num_dies;
> + data->expect_prefer_cores.dies = num_dies;
> + data->expect_prefer_cores.cpus *= num_dies;
> + data->expect_prefer_cores.max_cpus *= num_dies;
> +
> + smp_parse_test(ms, data, true);
> + }
> +
> + for (i = 0; i < ARRAY_SIZE(data_with_dies_invalid); i++) {
> + test_data_copy(data, &data_with_dies_invalid[i]);
> + unsupported_params_init(mc, data);
> +
> + smp_parse_test(ms, data, false);
> + }
> +
> + object_unref(obj);
> +}
> +
> +int main(int argc, char *argv[])
> +{
> + g_test_init(&argc, &argv, NULL);
> +
> + module_call_init(MODULE_INIT_QOM);
> + type_register_static(&smp_machine_info);
> +
> + g_test_add_func("/test-smp-parse/generic", test_generic);
> + g_test_add_func("/test-smp-parse/with_dies", test_with_dies);
> +
> + g_test_run();
> +
> + return 0;
> +}
> --
> 2.19.1
>
Otherwise,
Reviewed-by: Andrew Jones <drjones@redhat.com>
On 2021/10/12 21:51, Andrew Jones wrote:
> On Sun, Oct 10, 2021 at 06:39:54PM +0800, Yanan Wang wrote:
>> Now that we have a generic parser smp_parse(), let's add an unit
>> test for the code. All possible valid/invalid SMP configurations
>> that the user can specify are covered.
>>
>> Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
>> ---
>> MAINTAINERS | 1 +
>> tests/unit/meson.build | 1 +
>> tests/unit/test-smp-parse.c | 613 ++++++++++++++++++++++++++++++++++++
>> 3 files changed, 615 insertions(+)
>> create mode 100644 tests/unit/test-smp-parse.c
>>
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index dc9091c1d7..b5a5b1469b 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -1632,6 +1632,7 @@ F: include/hw/core/cpu.h
>> F: include/hw/core/smp.h
>> F: include/hw/cpu/cluster.h
>> F: include/sysemu/numa.h
>> +F: tests/unit/test-smp-parse.c
>> T: git https://gitlab.com/ehabkost/qemu.git machine-next
>>
>> Xtensa Machines
>> diff --git a/tests/unit/meson.build b/tests/unit/meson.build
>> index 7c297d7e5c..0382669fcf 100644
>> --- a/tests/unit/meson.build
>> +++ b/tests/unit/meson.build
>> @@ -45,6 +45,7 @@ tests = {
>> 'test-uuid': [],
>> 'ptimer-test': ['ptimer-test-stubs.c', meson.project_source_root() / 'hw/core/ptimer.c'],
>> 'test-qapi-util': [],
>> + 'test-smp-parse': [qom],
>> }
>>
>> if have_system or have_tools
>> diff --git a/tests/unit/test-smp-parse.c b/tests/unit/test-smp-parse.c
>> new file mode 100644
>> index 0000000000..7be258171e
>> --- /dev/null
>> +++ b/tests/unit/test-smp-parse.c
>> @@ -0,0 +1,613 @@
>> +/*
>> + * SMP parsing unit-tests
>> + *
>> + * Copyright (c) 2021 Huawei Technologies Co., Ltd
>> + *
>> + * Authors:
>> + * Yanan Wang <wangyanan55@huawei.com>
>> + *
>> + * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
>> + * See the COPYING.LIB file in the top-level directory.
>> + */
>> +
>> +#include "qemu/osdep.h"
>> +#include "qom/object.h"
>> +#include "qemu/module.h"
>> +#include "qapi/error.h"
>> +
>> +#include "hw/boards.h"
>> +#include "hw/core/smp.h"
>> +
>> +#define T true
>> +#define F false
>> +
>> +#define MIN_CPUS 1 /* set the min CPUs supported by the machine as 1 */
>> +#define MAX_CPUS 512 /* set the max CPUs supported by the machine as 512 */
>> +
>> +/*
>> + * Used to define the generic 3-level CPU topology hierarchy
>> + * -sockets/cores/threads
>> + */
>> +#define SMP_CONFIG_GENERIC(ha, a, hb, b, hc, c, hd, d, he, e) \
>> + { \
>> + .has_cpus = ha, .cpus = a, \
>> + .has_sockets = hb, .sockets = b, \
>> + .has_cores = hc, .cores = c, \
>> + .has_threads = hd, .threads = d, \
>> + .has_maxcpus = he, .maxcpus = e, \
>> + }
>> +
>> +#define CPU_TOPOLOGY_GENERIC(a, b, c, d, e) \
>> + { \
>> + .cpus = a, \
>> + .sockets = b, \
>> + .cores = c, \
>> + .threads = d, \
>> + .max_cpus = e, \
>> + }
>> +
>> +/*
>> + * Currently a 4-level topology hierarchy is supported on PC machines
>> + * -sockets/dies/cores/threads
>> + */
>> +#define SMP_CONFIG_WITH_DIES(ha, a, hb, b, hc, c, hd, d, he, e, hf, f) \
>> + { \
>> + .has_cpus = ha, .cpus = a, \
>> + .has_sockets = hb, .sockets = b, \
>> + .has_dies = hc, .dies = c, \
>> + .has_cores = hd, .cores = d, \
>> + .has_threads = he, .threads = e, \
>> + .has_maxcpus = hf, .maxcpus = f, \
>> + }
>> +
>> +#define CPU_TOPOLOGY_WITH_DIES(a, b, c, d, e, f) \
>> + { \
>> + .cpus = a, \
>> + .sockets = b, \
>> + .dies = c, \
>> + .cores = d, \
>> + .threads = e, \
>> + .max_cpus = f, \
>> + }
>> +
>> +/**
>> + * @config - the given SMP configuration
>> + * @expect_prefer_sockets - the expected parsing result for the
>> + * valid configuration, when sockets are preferred over cores
>> + * @expect_prefer_cores - the expected parsing result for the
>> + * valid configuration, when cores are preferred over sockets
>> + * @expect_error - the expected error report when the given
>> + * configuration is invalid
>> + */
>> +typedef struct SMPTestData {
>> + SMPConfiguration config;
>> + CpuTopology expect_prefer_sockets;
>> + CpuTopology expect_prefer_cores;
>> + const char *expect_error;
>> +} SMPTestData;
>> +
>> +/* Type info of the tested machine */
>> +static const TypeInfo smp_machine_info = {
>> + .name = TYPE_MACHINE,
>> + .parent = TYPE_OBJECT,
>> + .class_size = sizeof(MachineClass),
>> + .instance_size = sizeof(MachineState),
>> +};
>> +
>> +/*
>> + * List all the possible valid sub-collections of the generic 5
>> + * topology parameters (i.e. cpus/maxcpus/sockets/cores/threads),
>> + * then test the automatic calculation algorithm of the missing
>> + * values in the parser.
>> + */
>> +static struct SMPTestData data_generic_valid[] = {
>> + {
>> + /* config: no configuration provided
>> + * expect: cpus=1,sockets=1,cores=1,threads=1,maxcpus=1 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, F, 0, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(1, 1, 1, 1, 1),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(1, 1, 1, 1, 1),
>> + }, {
>> + /* config: -smp 8
>> + * prefer_sockets: cpus=8,sockets=8,cores=1,threads=1,maxcpus=8
>> + * prefer_cores: cpus=8,sockets=1,cores=8,threads=1,maxcpus=8 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, F, 0, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 8, 1, 1, 8),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 8, 1, 8),
>> + }, {
>> + /* config: -smp sockets=2
>> + * expect: cpus=2,sockets=2,cores=1,threads=1,maxcpus=2 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, F, 0, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(2, 2, 1, 1, 2),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(2, 2, 1, 1, 2),
>> + }, {
>> + /* config: -smp cores=4
>> + * expect: cpus=4,sockets=1,cores=4,threads=1,maxcpus=4 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, F, 0, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(4, 1, 4, 1, 4),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(4, 1, 4, 1, 4),
>> + }, {
>> + /* config: -smp threads=2
>> + * expect: cpus=2,sockets=1,cores=1,threads=2,maxcpus=2 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, T, 2, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(2, 1, 1, 2, 2),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(2, 1, 1, 2, 2),
>> + }, {
>> + /* config: -smp maxcpus=16
>> + * prefer_sockets: cpus=16,sockets=16,cores=1,threads=1,maxcpus=16
>> + * prefer_cores: cpus=16,sockets=1,cores=16,threads=1,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, F, 0, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 16, 1, 1, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 1, 16, 1, 16),
>> + }, {
>> + /* config: -smp 8,sockets=2
>> + * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, F, 0, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
>> + }, {
>> + /* config: -smp 8,cores=4
>> + * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, F, 0, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
>> + }, {
>> + /* config: -smp 8,threads=2
>> + * prefer_sockets: cpus=8,sockets=4,cores=1,threads=2,maxcpus=8
>> + * prefer_cores: cpus=8,sockets=1,cores=4,threads=2,maxcpus=8 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, T, 2, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 4, 1, 2, 8),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
>> + }, {
>> + /* config: -smp 8,maxcpus=16
>> + * prefer_sockets: cpus=8,sockets=16,cores=1,threads=1,maxcpus=16
>> + * prefer_cores: cpus=8,sockets=1,cores=16,threads=1,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, F, 0, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 16, 1, 1, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 16, 1, 16),
>> + }, {
>> + /* config: -smp sockets=2,cores=4
>> + * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, F, 0, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
>> + }, {
>> + /* config: -smp sockets=2,threads=2
>> + * expect: cpus=4,sockets=2,cores=1,threads=2,maxcpus=4 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, T, 2, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(4, 2, 1, 2, 4),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(4, 2, 1, 2, 4),
>> + }, {
>> + /* config: -smp sockets=2,maxcpus=16
>> + * expect: cpus=16,sockets=2,cores=8,threads=1,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, F, 0, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 8, 1, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 8, 1, 16),
>> + }, {
>> + /* config: -smp cores=4,threads=2
>> + * expect: cpus=8,sockets=1,cores=4,threads=2,maxcpus=8 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, T, 2, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
>> + }, {
>> + /* config: -smp cores=4,maxcpus=16
>> + * expect: cpus=16,sockets=4,cores=4,threads=1,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, F, 0, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 4, 4, 1, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 4, 4, 1, 16),
>> + }, {
>> + /* config: -smp threads=2,maxcpus=16
>> + * prefer_sockets: cpus=16,sockets=8,cores=1,threads=2,maxcpus=16
>> + * prefer_cores: cpus=16,sockets=1,cores=8,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, F, 0, T, 2, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 8, 1, 2, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 1, 8, 2, 16),
>> + }, {
>> + /* config: -smp 8,sockets=2,cores=4
>> + * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, F, 0, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
>> + }, {
>> + /* config: -smp 8,sockets=2,threads=2
>> + * expect: cpus=8,sockets=2,cores=2,threads=2,maxcpus=8 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, T, 2, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 2, 2, 8),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 2, 2, 8),
>> + }, {
>> + /* config: -smp 8,sockets=2,maxcpus=16
>> + * expect: cpus=8,sockets=2,cores=8,threads=1,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, F, 0, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 8, 1, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 8, 1, 16),
>> + }, {
>> + /* config: -smp 8,cores=4,threads=2
>> + * expect: cpus=8,sockets=1,cores=4,threads=2,maxcpus=8 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, T, 2, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 4, 2, 8),
>> + }, {
>> + /* config: -smp 8,cores=4,maxcpus=16
>> + * expect: cpus=8,sockets=4,cores=4,threads=1,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, F, 0, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 4, 4, 1, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 4, 4, 1, 16),
>> + }, {
>> + /* config: -smp 8,threads=2,maxcpus=16
>> + * prefer_sockets: cpus=8,sockets=8,cores=1,threads=2,maxcpus=16
>> + * prefer_cores: cpus=8,sockets=1,cores=8,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, F, 0, T, 2, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 8, 1, 2, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 1, 8, 2, 16),
>> + }, {
>> + /* config: -smp sockets=2,cores=4,threads=2
>> + * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, T, 2, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
>> + }, {
>> + /* config: -smp sockets=2,cores=4,maxcpus=16
>> + * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, F, 0, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
>> + }, {
>> + /* config: -smp sockets=2,threads=2,maxcpus=16
>> + * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, F, 0, T, 2, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
>> + }, {
>> + /* config: -smp cores=4,threads=2,maxcpus=16
>> + * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, F, 0, T, 4, T, 2, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
>> + }, {
>> + /* config: -smp 8,sockets=2,cores=4,threads=1
>> + * expect: cpus=8,sockets=2,cores=4,threads=1,maxcpus=8 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, T, 1, F, 0),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 1, 8),
>> + }, {
>> + /* config: -smp 8,sockets=2,cores=4,maxcpus=16
>> + * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, F, 0, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
>> + }, {
>> + /* config: -smp 8,sockets=2,threads=2,maxcpus=16
>> + * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, F, 0, T, 2, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
>> + }, {
>> + /* config: -smp 8,cores=4,threads=2,maxcpus=16
>> + * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, F, 0, T, 4, T, 2, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
>> + }, {
>> + /* config: -smp sockets=2,cores=4,threads=2,maxcpus=16
>> + * expect: cpus=16,sockets=2,cores=4,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(F, 0, T, 2, T, 4, T, 2, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(16, 2, 4, 2, 16),
>> + }, {
>> + /* config: -smp 8,sockets=2,cores=4,threads=2,maxcpus=16
>> + * expect: cpus=8,sockets=2,cores=4,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, T, 2, T, 16),
>> + .expect_prefer_sockets = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
>> + .expect_prefer_cores = CPU_TOPOLOGY_GENERIC(8, 2, 4, 2, 16),
>> + },
>> +};
>> +
>> +static struct SMPTestData data_generic_invalid[] = {
>> + {
>> + /* config: -smp 2,dies=2 */
>> + .config = SMP_CONFIG_WITH_DIES(T, 2, F, 0, T, 2, F, 0, F, 0, F, 0),
>> + .expect_error = "dies not supported by this machine's CPU topology",
>> + }, {
>> + /* config: -smp 8,sockets=2,cores=4,threads=2,maxcpus=8 */
>> + .config = SMP_CONFIG_GENERIC(T, 8, T, 2, T, 4, T, 2, T, 8),
>> + .expect_error = "Invalid CPU topology: "
>> + "product of the hierarchy must match maxcpus: "
>> + "sockets (2) * cores (4) * threads (2) "
>> + "!= maxcpus (8)",
>> + }, {
>> + /* config: -smp 18,sockets=2,cores=4,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_GENERIC(T, 18, T, 2, T, 4, T, 2, T, 16),
>> + .expect_error = "Invalid CPU topology: "
>> + "maxcpus must be equal to or greater than smp: "
>> + "sockets (2) * cores (4) * threads (2) "
>> + "== maxcpus (16) < smp_cpus (18)",
>> + }, {
>> + /* config: -smp 1
>> + * should tweak the supported min CPUs to 2 for testing */
>> + .config = SMP_CONFIG_GENERIC(T, 1, F, 0, F, 0, F, 0, F, 0),
>> + .expect_error = "Invalid SMP CPUs 1. The min CPUs supported "
>> + "by machine '(null)' is 2",
>> + }, {
>> + /* config: -smp 512
>> + * should tweak the supported max CPUs to 511 for testing */
>> + .config = SMP_CONFIG_GENERIC(T, 512, F, 0, F, 0, F, 0, F, 0),
>> + .expect_error = "Invalid SMP CPUs 512. The max CPUs supported "
>> + "by machine '(null)' is 511",
>> + },
>> +};
>> +
>> +static struct SMPTestData data_with_dies_invalid[] = {
>> + {
>> + /* config: -smp 16,sockets=2,dies=2,cores=4,threads=2,maxcpus=16 */
>> + .config = SMP_CONFIG_WITH_DIES(T, 16, T, 2, T, 2, T, 4, T, 2, T, 16),
>> + .expect_error = "Invalid CPU topology: "
>> + "product of the hierarchy must match maxcpus: "
>> + "sockets (2) * dies (2) * cores (4) * threads (2) "
>> + "!= maxcpus (16)",
>> + }, {
>> + /* config: -smp 34,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
>> + .config = SMP_CONFIG_WITH_DIES(T, 34, T, 2, T, 2, T, 4, T, 2, T, 32),
>> + .expect_error = "Invalid CPU topology: "
>> + "maxcpus must be equal to or greater than smp: "
>> + "sockets (2) * dies (2) * cores (4) * threads (2) "
>> + "== maxcpus (32) < smp_cpus (34)",
>> + },
>> +};
>> +
>> +static char *smp_config_to_string(SMPConfiguration *config)
>> +{
>> + return g_strdup_printf(
>> + "(SMPConfiguration) {\n"
>> + " .has_cpus = %5s, cpus = %ld,\n"
>> + " .has_sockets = %5s, sockets = %ld,\n"
>> + " .has_dies = %5s, dies = %ld,\n"
>> + " .has_cores = %5s, cores = %ld,\n"
>> + " .has_threads = %5s, threads = %ld,\n"
>> + " .has_maxcpus = %5s, maxcpus = %ld,\n"
>> + "}",
>> + config->has_cpus ? "true" : "false", config->cpus,
>> + config->has_sockets ? "true" : "false", config->sockets,
>> + config->has_dies ? "true" : "false", config->dies,
>> + config->has_cores ? "true" : "false", config->cores,
>> + config->has_threads ? "true" : "false", config->threads,
>> + config->has_maxcpus ? "true" : "false", config->maxcpus);
>> +}
>> +
>> +static char *cpu_topology_to_string(CpuTopology *topo)
>> +{
>> + return g_strdup_printf(
>> + "(CpuTopology) {\n"
>> + " .cpus = %u,\n"
>> + " .sockets = %u,\n"
>> + " .dies = %u,\n"
>> + " .cores = %u,\n"
>> + " .threads = %u,\n"
>> + " .max_cpus = %u,\n"
>> + "}",
>> + topo->cpus, topo->sockets, topo->dies,
>> + topo->cores, topo->threads, topo->max_cpus);
>> +}
>> +
>> +static void check_parse(MachineState *ms, SMPConfiguration *config,
>> + CpuTopology *expect_topo, const char *expect_err,
>> + bool is_valid)
>> +{
>> + g_autofree char *config_str = smp_config_to_string(config);
>> + g_autofree char *expect_topo_str = cpu_topology_to_string(expect_topo);
>> + g_autofree char *output_topo_str = NULL;
>> + Error *err = NULL;
>> +
>> + /* call the generic parser smp_parse() */
>> + smp_parse(ms, config, &err);
>> +
>> + output_topo_str = cpu_topology_to_string(&ms->smp);
>> +
>> + /* when the configuration is supposed to be valid */
>> + if (is_valid) {
>> + if ((err == NULL) &&
>> + (ms->smp.cpus == expect_topo->cpus) &&
>> + (ms->smp.sockets == expect_topo->sockets) &&
>> + (ms->smp.dies == expect_topo->dies) &&
>> + (ms->smp.cores == expect_topo->cores) &&
>> + (ms->smp.threads == expect_topo->threads) &&
>> + (ms->smp.max_cpus == expect_topo->max_cpus)) {
>> + return;
>> + }
>> +
>> + if (err != NULL) {
>> + g_printerr("Test smp_parse failed!\n"
>> + "Input configuration: %s\n"
>> + "Should be valid: yes\n"
>> + "Expected topology: %s\n\n"
>> + "Result is valid: no\n"
>> + "Result error report: %s\n",
>> + config_str, expect_topo_str, error_get_pretty(err));
>> + goto end;
>> + }
>> +
>> + g_printerr("Test smp_parse failed!\n"
>> + "Input configuration: %s\n"
>> + "Should be valid: yes\n"
>> + "Expected topology: %s\n\n"
>> + "Result is valid: yes\n"
>> + "Output topology: %s\n",
>> + config_str, expect_topo_str, output_topo_str);
>> + goto end;
>> + }
>> +
>> + /* when the configuration is supposed to be invalid */
>> + if (err != NULL) {
>> + if (expect_err == NULL ||
>> + g_str_equal(expect_err, error_get_pretty(err))) {
>> + error_free(err);
>> + return;
>> + }
>> +
>> + g_printerr("Test smp_parse failed!\n"
>> + "Input configuration: %s\n"
>> + "Should be valid: no\n"
>> + "Expected error report: %s\n\n"
>> + "Result is valid: no\n"
>> + "Output error report: %s\n",
>> + config_str, expect_err, error_get_pretty(err));
>> + goto end;
>> + }
>> +
>> + g_printerr("Test smp_parse failed!\n"
>> + "Input configuration: %s\n"
>> + "Should be valid: no\n"
>> + "Expected error report: %s\n\n"
>> + "Result is valid: yes\n"
>> + "Output topology: %s\n",
>> + config_str, expect_err, output_topo_str);
>> +
>> +end:
>> + if (err != NULL) {
>> + error_free(err);
>> + }
>> +
>> + abort();
>> +}
>> +
>> +static void smp_parse_test(MachineState *ms, SMPTestData *data, bool is_valid)
>> +{
>> + MachineClass *mc = MACHINE_GET_CLASS(ms);
>> +
>> + mc->smp_props.prefer_sockets = true;
>> + check_parse(ms, &data->config, &data->expect_prefer_sockets,
>> + data->expect_error, is_valid);
>> +
>> + mc->smp_props.prefer_sockets = false;
>> + check_parse(ms, &data->config, &data->expect_prefer_cores,
>> + data->expect_error, is_valid);
>> +}
>> +
>> +static void test_data_copy(SMPTestData *targ, SMPTestData *src)
>> +{
>> + targ->config = src->config;
>> + targ->expect_prefer_sockets = src->expect_prefer_sockets;
>> + targ->expect_prefer_cores = src->expect_prefer_cores;
>> + targ->expect_error = src->expect_error;
> Why do we need this function? targ and src are of the same type. We can
> just use '='.
Ah, yes, you are right.
Currently we don't necessarily need this function at all.
I forgot to drop this one. I will drop it in v2.
>> +}
>> +
>> +/* The parsed results of the unsupported parameters should be 1 */
>> +static void unsupported_params_init(MachineClass *mc, SMPTestData *data)
>> +{
>> + if (!mc->smp_props.dies_supported) {
>> + data->expect_prefer_sockets.dies = 1;
>> + data->expect_prefer_cores.dies = 1;
>> + }
>> +}
>> +
>> +/* Reset the related machine properties before each sub-test */
>> +static void smp_machine_class_init(MachineClass *mc)
>> +{
>> + mc->min_cpus = MIN_CPUS;
>> + mc->max_cpus = MAX_CPUS;
>> +
>> + mc->smp_props.prefer_sockets = true;
>> + mc->smp_props.dies_supported = false;
>> +}
>> +
>> +static void test_generic(void)
>> +{
>> + Object *obj = object_new(TYPE_MACHINE);
>> + MachineState *ms = MACHINE(obj);
>> + MachineClass *mc = MACHINE_GET_CLASS(obj);
>> + SMPTestData *data = &(SMPTestData){0};
>> + int i;
>> +
>> + smp_machine_class_init(mc);
>> +
>> + for (i = 0; i < ARRAY_SIZE(data_generic_valid); i++) {
>> + test_data_copy(data, &data_generic_valid[i]);
>> + unsupported_params_init(mc, data);
>> +
>> + smp_parse_test(ms, data, true);
>> +
>> + /* Unsupported parameters can be provided with their values as 1 */
>> + data->config.has_dies = true;
>> + data->config.dies = 1;
>> + smp_parse_test(ms, data, true);
>> + }
>> +
>> + /* Reset the supported min CPUs and max CPUs */
>> + mc->min_cpus = 2;
>> + mc->max_cpus = 511;
>> +
>> + for (i = 0; i < ARRAY_SIZE(data_generic_invalid); i++) {
>> + test_data_copy(data, &data_generic_invalid[i]);
>> + unsupported_params_init(mc, data);
>> +
>> + smp_parse_test(ms, data, false);
>> + }
>> +
>> + object_unref(obj);
>> +}
>> +
>> +static void test_with_dies(void)
>> +{
>> + Object *obj = object_new(TYPE_MACHINE);
>> + MachineState *ms = MACHINE(obj);
>> + MachineClass *mc = MACHINE_GET_CLASS(obj);
>> + SMPTestData *data = &(SMPTestData){0};
>> + unsigned int num_dies = 2;
>> + int i;
>> +
>> + smp_machine_class_init(mc);
>> + mc->smp_props.dies_supported = true;
>> +
>> + for (i = 0; i < ARRAY_SIZE(data_generic_valid); i++) {
>> + test_data_copy(data, &data_generic_valid[i]);
>> + unsupported_params_init(mc, data);
>> +
>> + /* when dies parameter is omitted, it will be set as 1 */
>> + data->expect_prefer_sockets.dies = 1;
>> + data->expect_prefer_cores.dies = 1;
>> +
>> + smp_parse_test(ms, data, true);
>> +
>> + /* when dies parameter is specified */
>> + data->config.has_dies = true;
>> + data->config.dies = num_dies;
>> + if (data->config.has_cpus) {
>> + data->config.cpus *= num_dies;
>> + }
>> + if (data->config.has_maxcpus) {
>> + data->config.maxcpus *= num_dies;
>> + }
>> +
>> + data->expect_prefer_sockets.dies = num_dies;
>> + data->expect_prefer_sockets.cpus *= num_dies;
>> + data->expect_prefer_sockets.max_cpus *= num_dies;
>> + data->expect_prefer_cores.dies = num_dies;
>> + data->expect_prefer_cores.cpus *= num_dies;
>> + data->expect_prefer_cores.max_cpus *= num_dies;
>> +
>> + smp_parse_test(ms, data, true);
>> + }
>> +
>> + for (i = 0; i < ARRAY_SIZE(data_with_dies_invalid); i++) {
>> + test_data_copy(data, &data_with_dies_invalid[i]);
>> + unsupported_params_init(mc, data);
>> +
>> + smp_parse_test(ms, data, false);
>> + }
>> +
>> + object_unref(obj);
>> +}
>> +
>> +int main(int argc, char *argv[])
>> +{
>> + g_test_init(&argc, &argv, NULL);
>> +
>> + module_call_init(MODULE_INIT_QOM);
>> + type_register_static(&smp_machine_info);
>> +
>> + g_test_add_func("/test-smp-parse/generic", test_generic);
>> + g_test_add_func("/test-smp-parse/with_dies", test_with_dies);
>> +
>> + g_test_run();
>> +
>> + return 0;
>> +}
>> --
>> 2.19.1
>>
> Otherwise,
>
> Reviewed-by: Andrew Jones <drjones@redhat.com>
>
> .
Thank you very much for having a second look at this.
Thanks,
Yanan
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