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Re: [PATCH for-6.2 v2 11/11] tests/unit: Add a unit test for smp parsing
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From: |
Andrew Jones |
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Subject: |
Re: [PATCH for-6.2 v2 11/11] tests/unit: Add a unit test for smp parsing |
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Date: |
Mon, 19 Jul 2021 20:57:55 +0200 |
On Mon, Jul 19, 2021 at 11:20:43AM +0800, Yanan Wang wrote:
> Add a QEMU unit test for the parsing of given SMP configuration.
> Since all the parsing logic is in generic function smp_parse(),
> this test passes diffenent SMP configurations to the function
> and compare the parsing result with what is expected.
>
> In the test, all possible collections of the topology parameters
> and the corressponding expected results are listed, including the
> valid and invalid ones.
>
> The preference of sockets over cores and the preference of cores
> over sockets, and the support of multi-dies are also considered.
>
> Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
> ---
> MAINTAINERS | 1 +
> tests/unit/meson.build | 1 +
> tests/unit/test-smp-parse.c | 1117 +++++++++++++++++++++++++++++++++++
> 3 files changed, 1119 insertions(+)
> create mode 100644 tests/unit/test-smp-parse.c
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 70633e3bf4..160dba2e57 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1636,6 +1636,7 @@ F: include/hw/boards.h
> F: include/hw/core/cpu.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 3e0504dd21..694a924627 100644
> --- a/tests/unit/meson.build
> +++ b/tests/unit/meson.build
> @@ -44,6 +44,7 @@ tests = {
> 'test-uuid': [],
> 'ptimer-test': ['ptimer-test-stubs.c', meson.source_root() /
> 'hw/core/ptimer.c'],
> 'test-qapi-util': [],
> + 'test-smp-parse': [qom, meson.source_root() / 'hw/core/machine-smp.c'],
> }
>
> 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..bc1d324c3d
> --- /dev/null
> +++ b/tests/unit/test-smp-parse.c
> @@ -0,0 +1,1117 @@
> +/*
> + * SMP parsing unit-tests
> + *
> + * Copyright (C) 2021, Huawei, Inc.
> + *
> + * 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
> +
> +/**
> + * SMPTestData:
> + * @config - the given SMP configuration for parsing
> + * @should_be_valid - whether the given configuration is supposed to be valid
> + * @expect - the CPU topology info expected to be parsed out
> + */
> +typedef struct SMPTestData {
> + SMPConfiguration config;
> + bool should_be_valid;
Long way to say 'valid'.
> + CpuTopology expect;
> +} SMPTestData;
> +
> +/* the specific machine type info for this test */
> +static const TypeInfo smp_machine_info = {
> + .name = TYPE_MACHINE,
> + .parent = TYPE_OBJECT,
> + .class_size = sizeof(MachineClass),
> + .instance_size = sizeof(MachineState),
> +};
> +
> +/*
> + * prefer sockets over cores over threads before 6.2.
> + * all possible SMP configurations and the corressponding expected outputs
corresponding (please run spell check on your commit messages)
> + * are listed for testing, including the valid and invalid ones.
> + */
> +static struct SMPTestData prefer_sockets[] = {
> + {
> + /* config: no smp configuration provided
> + * expect: cpus=1,sockets=1,dies=1,cores=1,threads=1,maxcpus=1 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, F, 0, F, 0, F, 0 },
SMPConfiguration and CpuTopology have named fields so we could drop the
'expect: ...' comment line and instead do
{
/* no configuration provided */
.config = { .has_cpus = F, .has_maxcpus = F, ... },
.valid = T,
.expect = { .sockets = 1, .cores = 1, ... },
}, {
...
}
which may be easier to maintain. OTOH, the concise form this approach has
is also nice. I don't think you should need the casts in the assignments
though.
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 1, 1, 1, 1, 1, 1 },
> + }, {
> + /* config: -smp 8
> + * expect: cpus=8,sockets=8,dies=1,cores=1,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 8, 1, 1, 1, 8 },
> + }, {
> + /* config: -smp sockets=2
> + * expect: cpus=2,sockets=2,dies=1,cores=1,threads=1,maxcpus=2 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 2, 2, 1, 1, 1, 2 },
> + }, {
> + /* config: -smp cores=4
> + * expect: cpus=4,sockets=1,dies=1,cores=4,threads=1,maxcpus=4 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 4, 1, 1, 4, 1, 4 },
> + }, {
> + /* config: -smp threads=2
> + * expect: cpus=2,sockets=1,dies=1,cores=1,threads=2,maxcpus=2 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 2, 1, 1, 1, 2, 2 },
> + }, {
> + /* config: -smp maxcpus=16
> + * expect: cpus=16,sockets=16,dies=1,cores=1,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, F, 0, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 16, 1, 1, 1, 16 },
> + }, {
> + /* config: -smp 8,sockets=2
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 1, 8 },
> + }, {
> + /* config: -smp 8,cores=4
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 1, 8 },
> + }, {
> + /* config: -smp 8,threads=2
> + * expect: cpus=8,sockets=4,dies=1,cores=1,threads=2,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 4, 1, 1, 2, 8 },
> + }, {
> + /* config: -smp 8,maxcpus=16
> + * expect: cpus=8,sockets=16,dies=1,cores=1,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, F, 0, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 16, 1, 1, 1, 16 },
> + }, {
> + /* config: -smp sockets=2,cores=4
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 1, 8 },
> + }, {
> + /* config: -smp sockets=2,threads=2
> + * expect: cpus=4,sockets=2,dies=1,cores=1,threads=2,maxcpus=4 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 4, 2, 1, 1, 2, 4 },
> + }, {
> + /* config: -smp sockets=2,maxcpus=16
> + * expect: cpus=16,sockets=2,dies=1,cores=8,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, F, 0, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 8, 1, 16 },
> + }, {
> + /* config: -smp cores=4,threads=2
> + * expect: cpus=8,sockets=1,dies=1,cores=4,threads=2,maxcpus=8 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 1, 1, 4, 2, 8 },
> + }, {
> + /* config: -smp cores=4,maxcpus=16
> + * expect: cpus=16,sockets=4,dies=1,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, T, 4, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 4, 1, 4, 1, 16 },
> + }, {
> + /* config: -smp threads=2,maxcpus=16
> + * expect: cpus=16,sockets=8,dies=1,cores=1,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, F, 0, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 8, 1, 1, 2, 16 },
> + }, {
> + /* config: -smp 8,sockets=2,cores=4
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 1, 8 },
> + }, {
> + /* config: -smp 8,sockets=2,threads=2
> + * expect: cpus=8,sockets=2,dies=1,cores=2,threads=2,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 2, 2, 8 },
> + }, {
> + /* config: -smp 8,sockets=2,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=8,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, F, 0, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 8, 1, 16 },
> + }, {
> + /* config: -smp 8,cores=4,threads=2
> + * expect: cpus=8,sockets=1,dies=1,cores=4,threads=2,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 1, 1, 4, 2, 8 },
> + }, {
> + /* config: -smp 8,cores=4,maxcpus=16
> + * expect: cpus=8,sockets=4,dies=1,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, T, 4, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 4, 1, 4, 1, 16 },
> + }, {
> + /* config: -smp 8,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=8,dies=1,cores=1,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, F, 0, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 8, 1, 1, 2, 16 },
> + }, {
> + /* config: -smp sockets=2,cores=4,threads=2
> + * expect: cpus=16,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp sockets=2,cores=4,maxcpus=16
> + * expect: cpus=16,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, T, 4, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp sockets=2,threads=2,maxcpus=16
> + * expect: cpus=16,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, F, 0, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp cores=4,threads=2,maxcpus=16
> + * expect: cpus=16,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, T, 4, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 8,sockets=2,cores=4,threads=1
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, T, 4, T, 1, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 1, 8 },
> + }, {
> + /* config: -smp 8,sockets=2,cores=4,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, T, 4, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 8,sockets=2,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, F, 0, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 8,cores=4,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, T, 4, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp sockets=2,cores=4,threads=2,maxcpus=16
> + * expect: -smp 16,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, T, 4, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 8,sockets=2,cores=4,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, T, 4, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, T, 2, T, 1, T, 4, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 0, F, 0, F, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 8, T, 0, F, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,dies=0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 0, T, 2, T, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,dies=1,cores=0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 8, T, 2, T, 1, T, 0, F, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,dies=1,cores=4,threads=0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 8, T, 2, T, 1, T, 4, T, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,dies=1,cores=4,threads=2,maxcpus=0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 8, T, 2, T, 1, T, 4, T, 2, T, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,dies=2
> + * expect: error, multi-dies not supported */
> + .config = (SMPConfiguration) { T, 8, F, 0, T, 2, F, 0, F, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,cores=8
> + * expect: error, sum (16) != max_cpus (8) */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, T, 4, T, 2, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,cores=5,threads=2,maxcpus=16
> + * expect: error, sum (20) != max_cpus (16) */
> + .config = (SMPConfiguration) { F, 0, T, 3, F, 0, T, 5, T, 1, T, 16 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 16,maxcpus=12
> + * expect: error, sum (12) < smp_cpus (16) */
> + .config = (SMPConfiguration) { T, 16, F, 0, F, 0, F, 0, F, 0, T, 12
> },
> + .should_be_valid = false,
> + },
> +};
> +
> +static struct SMPTestData prefer_sockets_support_dies[] = {
> + {
> + /* config: -smp dies=2
> + * expect: cpus=2,sockets=1,dies=2,cores=1,threads=1,maxcpus=2 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 2, 1, 2, 1, 1, 2 },
> + }, {
> + /* config: -smp 16,dies=2
> + * expect: cpus=16,sockets=8,dies=2,cores=1,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 8, 2, 1, 1, 16 },
> + }, {
> + /* config: -smp sockets=2,dies=2
> + * expect: cpus=4,sockets=2,dies=2,cores=1,threads=1,maxcpus=4 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 4, 2, 2, 1, 1, 4 },
> + }, {
> + /* config: -smp dies=2,cores=4
> + * expect: cpus=8,sockets=1,dies=2,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 1, 2, 4, 1, 8 },
> + }, {
> + /* config: -smp dies=2,threads=2
> + * expect: cpus=4,sockets=1,dies=2,cores=1,threads=2,maxcpus=4 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 4, 1, 2, 1, 2, 4 },
> + }, {
> + /* config: -smp dies=2,maxcpus=32
> + * expect: cpus=32,sockets=16,dies=2,cores=1,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, F, 0, F, 0, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 16, 2, 1, 1, 32 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 1, 16 },
> + }, {
> + /* config: -smp 16,dies=2,cores=4
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 1, 16 },
> + }, {
> + /* config: -smp 16,dies=2,threads=2
> + * expect: cpus=16,sockets=4,dies=2,cores=1,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 4, 2, 1, 2, 16 },
> + }, {
> + /* config: -smp 16,dies=2,maxcpus=32
> + * expect: cpus=16,sockets=16,dies=2,cores=1,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, F, 0, F, 0, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 16, 2, 1, 1, 32 },
> + }, {
> + /* config: -smp sockets=2,dies=2,cores=4
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 1, 16 },
> + }, {
> + /* config: -smp sockets=2,dies=2,threads=2
> + * expect: cpus=8,sockets=2,dies=2,cores=1,threads=2,maxcpus=8 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 2, 1, 2, 8 },
> + }, {
> + /* config: -smp sockets=2,dies=2,maxcpus=32
> + * expect: cpus=32,sockets=2,dies=2,cores=8,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, F, 0, F, 0, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 8, 1, 32 },
> + }, {
> + /* config: -smp dies=2,cores=4,threads=2
> + * expect: cpus=16,sockets=1,dies=2,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 1, 2, 4, 2, 16 },
> + }, {
> + /* config: -smp dies=2,cores=4,maxcpus=32
> + * expect: cpus=32,sockets=4,dies=2,cores=4,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, T, 4, F, 0, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 4, 2, 4, 1, 32 },
> + }, {
> + /* config: -smp dies=2,threads=2,maxcpus=32
> + * expect: cpus=32,sockets=8,dies=2,cores=1,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, F, 0, T, 2, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 8, 2, 1, 2, 32 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,cores=4
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 1, 16 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,threads=2
> + * expect: cpus=16,sockets=2,dies=2,cores=2,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 2, 2, 16 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,maxcpus=32
> + * expect: cpus=16,sockets=2,dies=2,cores=8,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, F, 0, F, 0, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 8, 1, 32 },
> + }, {
> + /* config: -smp 16,dies=2,cores=4,threads=2
> + * expect: cpus=16,sockets=1,dies=2,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 1, 2, 4, 2, 16 },
> + }, {
> + /* config: -smp 16,dies=2,cores=4,maxcpus=32
> + * expect: cpus=16,sockets=4,dies=2,cores=4,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, T, 4, F, 0, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 4, 2, 4, 1, 32 },
> + }, {
> + /* config: -smp 16,dies=2,threads=2,maxcpus=32
> + * expect: cpus=16,sockets=8,dies=2,cores=1,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, F, 0, T, 2, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 8, 2, 1, 2, 32 },
> + }, {
> + /* config: -smp sockets=2,dies=2,cores=4,threads=2
> + * expect: cpus=32,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp sockets=2,dies=2,cores=4,maxcpus=32
> + * expect: cpus=32,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, T, 4, F, 0, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp sockets=2,dies=2,threads=2,maxcpus=32
> + * expect: cpus=32,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, F, 0, T, 2, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp dies=2,cores=4,threads=2,maxcpus=32
> + * expect: cpus=32,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, T, 4, T, 2, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,cores=4,threads=1
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, T, 4, T, 1, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 1, 16 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,cores=4,maxcpus=32
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, T, 4, F, 0, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,threads=2,maxcpus=32
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, F, 0, T, 2, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp 16,dies=2,cores=4,threads=2,maxcpus=32
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, T, 4, T, 2, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp sockets=2,dies=2,cores=4,threads=2,maxcpus=32
> + * expect: -smp 32,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, T, 4, T, 2, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,cores=4,threads=2,maxcpus=32
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, T, 4, T, 2, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 2, 32 },
> + },
> +};
> +
> +/*
> + * prefer cores over sockets over threads since 6.2.
> + * all possible SMP configurations and the corressponding expected outputs
> + * are listed for testing, including the valid and invalid ones.
> + */
> +static struct SMPTestData prefer_cores[] = {
> + {
> + /* config: no smp configuration
> + * expect: cpus=1,sockets=1,dies=1,cores=1,threads=1,maxcpus=1 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 1, 1, 1, 1, 1, 1 },
> + }, {
> + /* config: -smp 8
> + * expect: cpus=8,sockets=1,dies=1,cores=8,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 1, 1, 8, 1, 8 },
> + }, {
> + /* config: -smp sockets=2
> + * expect: cpus=2,sockets=2,dies=1,cores=1,threads=1,maxcpus=2 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 2, 2, 1, 1, 1, 2 },
> + }, {
> + /* config: -smp cores=4
> + * expect: cpus=4,sockets=1,dies=1,cores=4,threads=1,maxcpus=4 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 4, 1, 1, 4, 1, 4 },
> + }, {
> + /* config: -smp threads=2
> + * expect: cpus=2,sockets=1,dies=1,cores=1,threads=2,maxcpus=2 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 2, 1, 1, 1, 2, 2 },
> + }, {
> + /* config: -smp maxcpus=16
> + * expect: cpus=16,sockets=1,dies=1,cores=16,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, F, 0, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 1, 1, 16, 1, 16 },
> + }, {
> + /* config: -smp 8,sockets=2
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 1, 8 },
> + }, {
> + /* config: -smp 8,cores=4
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 1, 8 },
> + }, {
> + /* config: -smp 8,threads=2
> + * expect: cpus=8,sockets=1,dies=1,cores=4,threads=2,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 1, 1, 4, 2, 8 },
> + }, {
> + /* config: -smp 8,maxcpus=16
> + * expect: cpus=8,sockets=1,dies=1,cores=16,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, F, 0, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 1, 1, 16, 1, 16 },
> + }, {
> + /* config: -smp sockets=2,cores=4
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 1, 8 },
> + }, {
> + /* config: -smp sockets=2,threads=2
> + * expect: cpus=4,sockets=2,dies=1,cores=1,threads=2,maxcpus=4 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 4, 2, 1, 1, 2, 4 },
> + }, {
> + /* config: -smp sockets=2,maxcpus=16
> + * expect: cpus=16,sockets=2,dies=1,cores=8,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, F, 0, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 8, 1, 16 },
> + }, {
> + /* config: -smp cores=4,threads=2
> + * expect: cpus=8,sockets=1,dies=1,cores=4,threads=2,maxcpus=8 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 1, 1, 4, 2, 8 },
> + }, {
> + /* config: -smp cores=4,maxcpus=16
> + * expect: cpus=16,sockets=4,dies=1,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, T, 4, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 4, 1, 4, 1, 16 },
> + }, {
> + /* config: -smp threads=2,maxcpus=16
> + * expect: cpus=16,sockets=1,dies=1,cores=8,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, F, 0, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 1, 1, 8, 2, 16 },
> + }, {
> + /* config: -smp 8,sockets=2,cores=4
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 1, 8 },
> + }, {
> + /* config: -smp 8,sockets=2,threads=2
> + * expect: cpus=8,sockets=2,dies=1,cores=2,threads=2,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 2, 2, 8 },
> + }, {
> + /* config: -smp 8,sockets=2,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=8,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, F, 0, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 8, 1, 16 },
> + }, {
> + /* config: -smp 8,cores=4,threads=2
> + * expect: cpus=8,sockets=1,dies=1,cores=4,threads=2,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 1, 1, 4, 2, 8 },
> + }, {
> + /* config: -smp 8,cores=4,maxcpus=16
> + * expect: cpus=8,sockets=4,dies=1,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, T, 4, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 4, 1, 4, 1, 16 },
> + }, {
> + /* config: -smp 8,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=1,dies=1,cores=8,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, F, 0, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 1, 1, 8, 2, 16 },
> + }, {
> + /* config: -smp sockets=2,cores=4,threads=2
> + * expect: cpus=16,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp sockets=2,cores=4,maxcpus=16
> + * expect: cpus=16,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, T, 4, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp sockets=2,threads=2,maxcpus=16
> + * expect: cpus=16,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, F, 0, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp cores=4,threads=2,maxcpus=16
> + * expect: cpus=16,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, F, 0, F, 0, T, 4, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 8,sockets=2,cores=4,threads=1
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, T, 4, T, 1, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 1, 8 },
> + }, {
> + /* config: -smp 8,sockets=2,cores=4,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, T, 4, F, 0, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 8,sockets=2,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, F, 0, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 8,cores=4,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, F, 0, F, 0, T, 4, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp sockets=2,cores=4,threads=2,maxcpus=16
> + * expect: -smp 16,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, F, 0, T, 4, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 8,sockets=2,cores=4,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, T, 4, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16
> + * expect: cpus=8,sockets=2,dies=1,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 8, T, 2, T, 1, T, 4, T, 2, T, 16 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 1, 4, 2, 16 },
> + }, {
> + /* config: -smp 0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 0, F, 0, F, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 8, T, 0, F, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,dies=0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 0, T, 2, T, 0, F, 0, F, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,dies=1,cores=0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 8, T, 2, T, 1, T, 0, F, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,dies=1,cores=4,threads=0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 8, T, 2, T, 1, T, 4, T, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,dies=1,cores=4,threads=2,maxcpus=0
> + * expect: error, "anything=0" is not allowed */
> + .config = (SMPConfiguration) { T, 8, T, 2, T, 1, T, 4, T, 2, T, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,dies=2
> + * expect: error, multi-dies not supported */
> + .config = (SMPConfiguration) { T, 8, F, 0, T, 2, F, 0, F, 0, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,cores=8
> + * expect: error, sum (16) != max_cpus (8) */
> + .config = (SMPConfiguration) { T, 8, T, 2, F, 0, T, 4, T, 2, F, 0 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 8,sockets=2,cores=5,threads=2,maxcpus=16
> + * expect: error, sum (20) != max_cpus (16) */
> + .config = (SMPConfiguration) { F, 0, T, 3, F, 0, T, 5, T, 1, T, 16 },
> + .should_be_valid = false,
> + }, {
> + /* config: -smp 16,maxcpus=12
> + * expect: error, sum (12) < smp_cpus (16) */
> + .config = (SMPConfiguration) { T, 16, F, 0, F, 0, F, 0, F, 0, T, 12
> },
> + .should_be_valid = false,
> + },
> +};
> +
> +static struct SMPTestData prefer_cores_support_dies[] = {
> + {
> + /* config: -smp dies=2
> + * expect: cpus=2,sockets=1,dies=2,cores=1,threads=1,maxcpus=2 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 2, 1, 2, 1, 1, 2 },
> + }, {
> + /* config: -smp 16,dies=2
> + * expect: cpus=16,sockets=1,dies=2,cores=8,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 1, 2, 8, 1, 16 },
> + }, {
> + /* config: -smp sockets=2,dies=2
> + * expect: cpus=4,sockets=2,dies=2,cores=1,threads=1,maxcpus=4 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 4, 2, 2, 1, 1, 4 },
> + }, {
> + /* config: -smp dies=2,cores=4
> + * expect: cpus=8,sockets=1,dies=2,cores=4,threads=1,maxcpus=8 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 1, 2, 4, 1, 8 },
> + }, {
> + /* config: -smp dies=2,threads=2
> + * expect: cpus=4,sockets=1,dies=2,cores=1,threads=2,maxcpus=4 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 4, 1, 2, 1, 2, 4 },
> + }, {
> + /* config: -smp dies=2,maxcpus=32
> + * expect: cpus=32,sockets=1,dies=2,cores=16,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, F, 0, F, 0, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 1, 2, 16, 1, 32 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, F, 0, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 1, 16 },
> + }, {
> + /* config: -smp 16,dies=2,cores=4
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 1, 16 },
> + }, {
> + /* config: -smp 16,dies=2,threads=2
> + * expect: cpus=16,sockets=1,dies=2,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 1, 2, 4, 2, 16 },
> + }, {
> + /* config: -smp 16,dies=2,maxcpus=32
> + * expect: cpus=16,sockets=1,dies=2,cores=16,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, F, 0, F, 0, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 1, 2, 16, 1, 32 },
> + }, {
> + /* config: -smp sockets=2,dies=2,cores=4
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 1, 16 },
> + }, {
> + /* config: -smp sockets=2,dies=2,threads=2
> + * expect: cpus=8,sockets=2,dies=2,cores=1,threads=2,maxcpus=8 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 8, 2, 2, 1, 2, 8 },
> + }, {
> + /* config: -smp sockets=2,dies=2,maxcpus=32
> + * expect: cpus=32,sockets=2,dies=2,cores=8,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, F, 0, F, 0, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 8, 1, 32 },
> + }, {
> + /* config: -smp dies=2,cores=4,threads=2
> + * expect: cpus=16,sockets=1,dies=2,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 1, 2, 4, 2, 16 },
> + }, {
> + /* config: -smp dies=2,cores=4,maxcpus=32
> + * expect: cpus=32,sockets=4,dies=2,cores=4,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, T, 4, F, 0, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 4, 2, 4, 1, 32 },
> + }, {
> + /* config: -smp dies=2,threads=2,maxcpus=32
> + * expect: cpus=32,sockets=1,dies=2,cores=8,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, F, 0, T, 2, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 1, 2, 8, 2, 32 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,cores=4
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, T, 4, F, 0, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 1, 16 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,threads=2
> + * expect: cpus=16,sockets=2,dies=2,cores=2,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, F, 0, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 2, 2, 16 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,maxcpus=32
> + * expect: cpus=16,sockets=2,dies=2,cores=8,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, F, 0, F, 0, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 8, 1, 32 },
> + }, {
> + /* config: -smp 16,dies=2,cores=4,threads=2
> + * expect: cpus=16,sockets=1,dies=2,cores=4,threads=2,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 1, 2, 4, 2, 16 },
> + }, {
> + /* config: -smp 16,dies=2,cores=4,maxcpus=32
> + * expect: cpus=16,sockets=4,dies=2,cores=4,threads=1,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, T, 4, F, 0, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 4, 2, 4, 1, 32 },
> + }, {
> + /* config: -smp 16,dies=2,threads=2,maxcpus=32
> + * expect: cpus=16,sockets=1,dies=2,cores=8,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, F, 0, T, 2, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 1, 2, 8, 2, 32 },
> + }, {
> + /* config: -smp sockets=2,dies=2,cores=4,threads=2
> + * expect: cpus=32,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, T, 4, T, 2, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp sockets=2,dies=2,cores=4,maxcpus=32
> + * expect: cpus=32,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, T, 4, F, 0, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp sockets=2,dies=2,threads=2,maxcpus=32
> + * expect: cpus=32,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, F, 0, T, 2, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp dies=2,cores=4,threads=2,maxcpus=32
> + * expect: cpus=32,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, F, 0, T, 2, T, 4, T, 2, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,cores=4,threads=1
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=1,maxcpus=16 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, T, 4, T, 1, F, 0 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 1, 16 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,cores=4,maxcpus=32
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, T, 4, F, 0, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,threads=2,maxcpus=32
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, F, 0, T, 2, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp 16,dies=2,cores=4,threads=2,maxcpus=32
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, F, 0, T, 2, T, 4, T, 2, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp sockets=2,dies=2,cores=4,threads=2,maxcpus=32
> + * expect: -smp 32,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { F, 0, T, 2, T, 2, T, 4, T, 2, T, 32 },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 32, 2, 2, 4, 2, 32 },
> + }, {
> + /* config: -smp 16,sockets=2,dies=2,cores=4,threads=2,maxcpus=32
> + * expect: cpus=16,sockets=2,dies=2,cores=4,threads=2,maxcpus=32 */
> + .config = (SMPConfiguration) { T, 16, T, 2, T, 2, T, 4, T, 2, T, 32
> },
> + .should_be_valid = true,
> + .expect = (CpuTopology) { 16, 2, 2, 4, 2, 32 },
> + },
> +};
> +
> +static char *get_config_info(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 *get_topo_info(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_smp_parse(MachineState *ms, SMPTestData *data)
> +{
> + SMPConfiguration *config = &data->config;
> + CpuTopology *expect = &data->expect;
> + g_autofree char *config_info = NULL;
> + g_autofree char *expect_info = NULL;
> + g_autofree char *result_info = NULL;
> + Error *err = NULL;
> +
> + /* call the generic parser smp_parse() in hw/core/machine-smp.c */
> + smp_parse(ms, config, &err);
> +
> + if (data->should_be_valid) {
> + if ((err == NULL) &&
> + (ms->smp.cpus == expect->cpus) &&
> + (ms->smp.sockets == expect->sockets) &&
> + (ms->smp.dies == expect->dies) &&
> + (ms->smp.cores == expect->cores) &&
> + (ms->smp.threads == expect->threads) &&
> + (ms->smp.max_cpus == expect->max_cpus)) {
> + return;
> + }
> +
> + config_info = get_config_info(config);
> + expect_info = get_topo_info(expect);
> +
> + if (err != NULL) {
> + g_printerr("Check smp_parse failed:\n"
> + "config: %s\n"
> + "expect: %s\n"
> + "should_be_valid: yes\n\n"
> + "result_is_valid: no\n"
> + "error_msg: %s\n",
> + config_info, expect_info, error_get_pretty(err));
> + error_free(err);
> + } else {
> + result_info = get_topo_info(&ms->smp);
> + g_printerr("Check smp_parse failed:\n"
> + "config: %s\n"
> + "expect: %s\n"
> + "should_be_valid: yes\n\n"
> + "result_is_valid: yes\n"
> + "result: %s\n",
> + config_info, expect_info, result_info);
> + }
> + } else {
> + if (err != NULL) {
> + error_free(err);
> + return;
> + }
> +
> + config_info = get_config_info(config);
> + result_info = get_topo_info(&ms->smp);
> +
> + g_printerr("Check smp_parse failed:\n"
> + "config: %s\n"
> + "should_be_valid: no\n\n"
> + "result_is_valid: yes\n"
> + "result: %s\n",
> + config_info, result_info);
> + }
> +
> + abort();
> +}
> +
> +static void smp_prefer_sockets_test(void)
> +{
> + Object *obj = object_new(TYPE_MACHINE);
> + MachineState *ms = MACHINE(obj);
> + MachineClass *mc = MACHINE_GET_CLASS(obj);
> + int i;
> +
> + /* make sure that we have created the object */
> + g_assert_nonnull(ms);
> + g_assert_nonnull(mc);
> +
> + mc->smp_prefer_sockets = true;
> +
> + /* test cases when multi-dies are not supported */
> + mc->smp_dies_supported = false;
> + for (i = 0; i < ARRAY_SIZE(prefer_sockets); i++) {
> + check_smp_parse(ms, &prefer_sockets[i]);
> + }
> +
> + /* test cases when multi-dies are supported */
> + mc->smp_dies_supported = true;
> + for (i = 0; i < ARRAY_SIZE(prefer_sockets_support_dies); i++) {
> + check_smp_parse(ms, &prefer_sockets_support_dies[i]);
> + }
> +
> + object_unref(obj);
> +}
> +
> +static void smp_prefer_cores_test(void)
> +{
> + Object *obj = object_new(TYPE_MACHINE);
> + MachineState *ms = MACHINE(obj);
> + MachineClass *mc = MACHINE_GET_CLASS(obj);
> + int i;
> +
> + /* make sure that we have created the object */
> + g_assert_nonnull(ms);
> + g_assert_nonnull(mc);
> +
> + mc->smp_prefer_sockets = false;
> +
> + /* test cases when multi-dies are not supported */
> + mc->smp_dies_supported = false;
> + for (i = 0; i < ARRAY_SIZE(prefer_cores); i++) {
> + check_smp_parse(ms, &prefer_cores[i]);
> + }
> +
> + /* test cases when multi-dies are supported */
> + mc->smp_dies_supported = true;
> + for (i = 0; i < ARRAY_SIZE(prefer_cores_support_dies); i++) {
> + check_smp_parse(ms, &prefer_cores_support_dies[i]);
> + }
> +
> + 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/prefer_sockets",
> smp_prefer_sockets_test);
> + g_test_add_func("/test-smp-parse/prefer_cores", smp_prefer_cores_test);
> +
> + g_test_run();
> +
> + return 0;
> +}
> --
> 2.19.1
>
Besides the nits, it looks good to me.
Reviewed-by: Andrew Jones <drjones@redhat.com>
- Re: [PATCH for-6.2 v2 10/11] machine: Split out the smp parsing code, (continued)
[PATCH for-6.2 v2 08/11] machine: Use ms instead of global current_machine in sanity-check, Yanan Wang, 2021/07/18
[PATCH for-6.2 v2 05/11] machine: Improve the error reporting of smp parsing, Yanan Wang, 2021/07/18
[PATCH for-6.2 v2 11/11] tests/unit: Add a unit test for smp parsing, Yanan Wang, 2021/07/18
- Re: [PATCH for-6.2 v2 11/11] tests/unit: Add a unit test for smp parsing,
Andrew Jones <=
Re: [PATCH for-6.2 v2 00/11] machine: smp parsing fixes and improvement, Cornelia Huck, 2021/07/19