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FRET-qemu/tests/unit/test-smp-parse.c
Zhao Liu 7d5936791e tests: test-smp-parse: Add the test for cores/threads per socket helpers 
Use the different ways to calculate cores/threads per socket, so that
the new CPU topology levels won't be missed in these 2 helpes:

* machine_topo_get_cores_per_socket()
* machine_topo_get_threads_per_socket()

Test the commit a1d027be95bc3 ("machine: Add helpers to get cores/
threads per socket").

Suggested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20231023094635.1588282-2-zhao1.liu@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-11-07 03:39:11 -05:00

791 lines
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/*
* 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"
#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 */
#define SMP_MACHINE_NAME "TEST-SMP"
/*
* 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, \
}
/*
* Currently a 4-level topology hierarchy is supported on ARM virt machines
* -sockets/clusters/cores/threads
*/
#define SMP_CONFIG_WITH_CLUSTERS(ha, a, hb, b, hc, c, hd, d, he, e, hf, f) \
{ \
.has_cpus = ha, .cpus = a, \
.has_sockets = hb, .sockets = b, \
.has_clusters = hc, .clusters = c, \
.has_cores = hd, .cores = d, \
.has_threads = he, .threads = e, \
.has_maxcpus = hf, .maxcpus = 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;
/*
* 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 const 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 const 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 2,clusters=2 */
.config = SMP_CONFIG_WITH_CLUSTERS(T, 2, F, 0, T, 2, F, 0, F, 0, F, 0),
.expect_error = "clusters 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 '" SMP_MACHINE_NAME "' 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 '" SMP_MACHINE_NAME "' is 511",
},
};
static const 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 const struct SMPTestData data_with_clusters_invalid[] = {
{
/* config: -smp 16,sockets=2,clusters=2,cores=4,threads=2,maxcpus=16 */
.config = SMP_CONFIG_WITH_CLUSTERS(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) * clusters (2) * cores (4) * threads (2) "
"!= maxcpus (16)",
}, {
/* config: -smp 34,sockets=2,clusters=2,cores=4,threads=2,maxcpus=32 */
.config = SMP_CONFIG_WITH_CLUSTERS(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) * clusters (2) * cores (4) * threads (2) "
"== maxcpus (32) < smp_cpus (34)",
},
};
static char *smp_config_to_string(const SMPConfiguration *config)
{
return g_strdup_printf(
"(SMPConfiguration) {\n"
" .has_cpus = %5s, cpus = %" PRId64 ",\n"
" .has_sockets = %5s, sockets = %" PRId64 ",\n"
" .has_dies = %5s, dies = %" PRId64 ",\n"
" .has_clusters = %5s, clusters = %" PRId64 ",\n"
" .has_cores = %5s, cores = %" PRId64 ",\n"
" .has_threads = %5s, threads = %" PRId64 ",\n"
" .has_maxcpus = %5s, maxcpus = %" PRId64 ",\n"
"}",
config->has_cpus ? "true" : "false", config->cpus,
config->has_sockets ? "true" : "false", config->sockets,
config->has_dies ? "true" : "false", config->dies,
config->has_clusters ? "true" : "false", config->clusters,
config->has_cores ? "true" : "false", config->cores,
config->has_threads ? "true" : "false", config->threads,
config->has_maxcpus ? "true" : "false", config->maxcpus);
}
/* Use the different calculation than machine_topo_get_threads_per_socket(). */
static unsigned int cpu_topology_get_threads_per_socket(const CpuTopology *topo)
{
/* Check the divisor to avoid invalid topology examples causing SIGFPE. */
if (!topo->sockets) {
return 0;
} else {
return topo->max_cpus / topo->sockets;
}
}
/* Use the different calculation than machine_topo_get_cores_per_socket(). */
static unsigned int cpu_topology_get_cores_per_socket(const CpuTopology *topo)
{
/* Check the divisor to avoid invalid topology examples causing SIGFPE. */
if (!topo->threads) {
return 0;
} else {
return cpu_topology_get_threads_per_socket(topo) / topo->threads;
}
}
static char *cpu_topology_to_string(const CpuTopology *topo,
unsigned int threads_per_socket,
unsigned int cores_per_socket)
{
return g_strdup_printf(
"(CpuTopology) {\n"
" .cpus = %u,\n"
" .sockets = %u,\n"
" .dies = %u,\n"
" .clusters = %u,\n"
" .cores = %u,\n"
" .threads = %u,\n"
" .max_cpus = %u,\n"
" .threads_per_socket = %u,\n"
" .cores_per_socket = %u,\n"
"}",
topo->cpus, topo->sockets, topo->dies, topo->clusters,
topo->cores, topo->threads, topo->max_cpus,
threads_per_socket, cores_per_socket);
}
static void check_parse(MachineState *ms, const SMPConfiguration *config,
const 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 = NULL, *output_topo_str = NULL;
unsigned int expect_threads_per_socket, expect_cores_per_socket;
unsigned int ms_threads_per_socket, ms_cores_per_socket;
Error *err = NULL;
expect_threads_per_socket =
cpu_topology_get_threads_per_socket(expect_topo);
expect_cores_per_socket =
cpu_topology_get_cores_per_socket(expect_topo);
expect_topo_str = cpu_topology_to_string(expect_topo,
expect_threads_per_socket,
expect_cores_per_socket);
/* call the generic parser */
machine_parse_smp_config(ms, config, &err);
ms_threads_per_socket = machine_topo_get_threads_per_socket(ms);
ms_cores_per_socket = machine_topo_get_cores_per_socket(ms);
output_topo_str = cpu_topology_to_string(&ms->smp, ms_threads_per_socket,
ms_cores_per_socket);
/* 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.clusters == expect_topo->clusters) &&
(ms->smp.cores == expect_topo->cores) &&
(ms->smp.threads == expect_topo->threads) &&
(ms->smp.max_cpus == expect_topo->max_cpus) &&
(ms_threads_per_socket == expect_threads_per_socket) &&
(ms_cores_per_socket == expect_cores_per_socket)) {
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"
"Output 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);
}
/* The parsed results of the unsupported parameters should be 1 */
static void unsupported_params_init(const MachineClass *mc, SMPTestData *data)
{
if (!mc->smp_props.dies_supported) {
data->expect_prefer_sockets.dies = 1;
data->expect_prefer_cores.dies = 1;
}
if (!mc->smp_props.clusters_supported) {
data->expect_prefer_sockets.clusters = 1;
data->expect_prefer_cores.clusters = 1;
}
}
static void machine_base_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->min_cpus = MIN_CPUS;
mc->max_cpus = MAX_CPUS;
mc->name = g_strdup(SMP_MACHINE_NAME);
}
static void machine_generic_invalid_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
/* Force invalid min CPUs and max CPUs */
mc->min_cpus = 2;
mc->max_cpus = 511;
}
static void machine_with_dies_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->smp_props.dies_supported = true;
}
static void machine_with_clusters_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->smp_props.clusters_supported = true;
}
static void test_generic_valid(const void *opaque)
{
const char *machine_type = opaque;
Object *obj = object_new(machine_type);
MachineState *ms = MACHINE(obj);
MachineClass *mc = MACHINE_GET_CLASS(obj);
SMPTestData data = {};
int i;
for (i = 0; i < ARRAY_SIZE(data_generic_valid); i++) {
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);
}
object_unref(obj);
}
static void test_generic_invalid(const void *opaque)
{
const char *machine_type = opaque;
Object *obj = object_new(machine_type);
MachineState *ms = MACHINE(obj);
MachineClass *mc = MACHINE_GET_CLASS(obj);
SMPTestData data = {};
int i;
for (i = 0; i < ARRAY_SIZE(data_generic_invalid); i++) {
data = data_generic_invalid[i];
unsupported_params_init(mc, &data);
smp_parse_test(ms, &data, false);
}
object_unref(obj);
}
static void test_with_dies(const void *opaque)
{
const char *machine_type = opaque;
Object *obj = object_new(machine_type);
MachineState *ms = MACHINE(obj);
MachineClass *mc = MACHINE_GET_CLASS(obj);
SMPTestData data = {};
unsigned int num_dies = 2;
int i;
for (i = 0; i < ARRAY_SIZE(data_generic_valid); i++) {
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++) {
data = data_with_dies_invalid[i];
unsupported_params_init(mc, &data);
smp_parse_test(ms, &data, false);
}
object_unref(obj);
}
static void test_with_clusters(const void *opaque)
{
const char *machine_type = opaque;
Object *obj = object_new(machine_type);
MachineState *ms = MACHINE(obj);
MachineClass *mc = MACHINE_GET_CLASS(obj);
SMPTestData data = {};
unsigned int num_clusters = 2;
int i;
for (i = 0; i < ARRAY_SIZE(data_generic_valid); i++) {
data = data_generic_valid[i];
unsupported_params_init(mc, &data);
/* when clusters parameter is omitted, it will be set as 1 */
data.expect_prefer_sockets.clusters = 1;
data.expect_prefer_cores.clusters = 1;
smp_parse_test(ms, &data, true);
/* when clusters parameter is specified */
data.config.has_clusters = true;
data.config.clusters = num_clusters;
if (data.config.has_cpus) {
data.config.cpus *= num_clusters;
}
if (data.config.has_maxcpus) {
data.config.maxcpus *= num_clusters;
}
data.expect_prefer_sockets.clusters = num_clusters;
data.expect_prefer_sockets.cpus *= num_clusters;
data.expect_prefer_sockets.max_cpus *= num_clusters;
data.expect_prefer_cores.clusters = num_clusters;
data.expect_prefer_cores.cpus *= num_clusters;
data.expect_prefer_cores.max_cpus *= num_clusters;
smp_parse_test(ms, &data, true);
}
for (i = 0; i < ARRAY_SIZE(data_with_clusters_invalid); i++) {
data = data_with_clusters_invalid[i];
unsupported_params_init(mc, &data);
smp_parse_test(ms, &data, false);
}
object_unref(obj);
}
/* Type info of the tested machine */
static const TypeInfo smp_machine_types[] = {
{
.name = TYPE_MACHINE,
.parent = TYPE_OBJECT,
.abstract = true,
.class_init = machine_base_class_init,
.class_size = sizeof(MachineClass),
.instance_size = sizeof(MachineState),
}, {
.name = MACHINE_TYPE_NAME("smp-generic-valid"),
.parent = TYPE_MACHINE,
}, {
.name = MACHINE_TYPE_NAME("smp-generic-invalid"),
.parent = TYPE_MACHINE,
.class_init = machine_generic_invalid_class_init,
}, {
.name = MACHINE_TYPE_NAME("smp-with-dies"),
.parent = TYPE_MACHINE,
.class_init = machine_with_dies_class_init,
}, {
.name = MACHINE_TYPE_NAME("smp-with-clusters"),
.parent = TYPE_MACHINE,
.class_init = machine_with_clusters_class_init,
}
};
DEFINE_TYPES(smp_machine_types)
int main(int argc, char *argv[])
{
module_call_init(MODULE_INIT_QOM);
g_test_init(&argc, &argv, NULL);
g_test_add_data_func("/test-smp-parse/generic/valid",
MACHINE_TYPE_NAME("smp-generic-valid"),
test_generic_valid);
g_test_add_data_func("/test-smp-parse/generic/invalid",
MACHINE_TYPE_NAME("smp-generic-invalid"),
test_generic_invalid);
g_test_add_data_func("/test-smp-parse/with_dies",
MACHINE_TYPE_NAME("smp-with-dies"),
test_with_dies);
g_test_add_data_func("/test-smp-parse/with_clusters",
MACHINE_TYPE_NAME("smp-with-clusters"),
test_with_clusters);
g_test_run();
return 0;
}
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