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From a039ed652e6d2f5edcef9d5d1d3baec17ce7f929 Mon Sep 17 00:00:00 2001
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From: Gavin Shan <gshan@redhat.com>
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Date: Wed, 11 May 2022 18:01:35 +0800
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Subject: [PATCH 04/16] qtest/numa-test: Correct CPU and NUMA association in
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aarch64_numa_cpu()
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RH-Author: Gavin Shan <gshan@redhat.com>
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RH-MergeRequest: 86: hw/arm/virt: Fix the default CPU topology
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RH-Commit: [4/6] 64e9908a179eb4fb586d662f70f275a81808e50c (gwshan/qemu-rhel-9)
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RH-Bugzilla: 2041823
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RH-Acked-by: Eric Auger <eric.auger@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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RH-Acked-by: Andrew Jones <drjones@redhat.com>
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2041823
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In aarch64_numa_cpu(), the CPU and NUMA association is something
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like below. Two threads in the same core/cluster/socket are
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associated with two individual NUMA nodes, which is unreal as
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Igor Mammedov mentioned. We don't expect the association to break
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NUMA-to-socket boundary, which matches with the real world.
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NUMA-node socket cluster core thread
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------------------------------------------
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0 0 0 0 0
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1 0 0 0 1
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This corrects the topology for CPUs and their association with
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NUMA nodes. After this patch is applied, the CPU and NUMA
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association becomes something like below, which looks real.
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Besides, socket/cluster/core/thread IDs are all checked when
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the NUMA node IDs are verified. It helps to check if the CPU
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topology is properly populated or not.
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NUMA-node socket cluster core thread
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------------------------------------------
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0 1 0 0 0
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1 0 0 0 0
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Suggested-by: Igor Mammedov <imammedo@redhat.com>
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Signed-off-by: Gavin Shan <gshan@redhat.com>
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Acked-by: Igor Mammedov <imammedo@redhat.com>
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Message-id: 20220503140304.855514-5-gshan@redhat.com
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Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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(cherry picked from commit e280ecb39bc1629f74ea5479d464fd1608dc8f76)
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Signed-off-by: Gavin Shan <gshan@redhat.com>
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---
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tests/qtest/numa-test.c | 18 ++++++++++++------
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1 file changed, 12 insertions(+), 6 deletions(-)
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diff --git a/tests/qtest/numa-test.c b/tests/qtest/numa-test.c
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index aeda8c774c..32e35daaae 100644
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--- a/tests/qtest/numa-test.c
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+++ b/tests/qtest/numa-test.c
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@@ -224,17 +224,17 @@ static void aarch64_numa_cpu(const void *data)
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g_autofree char *cli = NULL;
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cli = make_cli(data, "-machine "
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- "smp.cpus=2,smp.sockets=1,smp.clusters=1,smp.cores=1,smp.threads=2 "
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+ "smp.cpus=2,smp.sockets=2,smp.clusters=1,smp.cores=1,smp.threads=1 "
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"-numa node,nodeid=0,memdev=ram -numa node,nodeid=1 "
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- "-numa cpu,node-id=1,thread-id=0 "
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- "-numa cpu,node-id=0,thread-id=1");
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+ "-numa cpu,node-id=0,socket-id=1,cluster-id=0,core-id=0,thread-id=0 "
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+ "-numa cpu,node-id=1,socket-id=0,cluster-id=0,core-id=0,thread-id=0");
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qts = qtest_init(cli);
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cpus = get_cpus(qts, &resp);
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g_assert(cpus);
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while ((e = qlist_pop(cpus))) {
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QDict *cpu, *props;
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- int64_t thread, node;
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+ int64_t socket, cluster, core, thread, node;
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cpu = qobject_to(QDict, e);
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g_assert(qdict_haskey(cpu, "props"));
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@@ -242,12 +242,18 @@ static void aarch64_numa_cpu(const void *data)
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g_assert(qdict_haskey(props, "node-id"));
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node = qdict_get_int(props, "node-id");
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+ g_assert(qdict_haskey(props, "socket-id"));
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+ socket = qdict_get_int(props, "socket-id");
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+ g_assert(qdict_haskey(props, "cluster-id"));
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+ cluster = qdict_get_int(props, "cluster-id");
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+ g_assert(qdict_haskey(props, "core-id"));
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+ core = qdict_get_int(props, "core-id");
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g_assert(qdict_haskey(props, "thread-id"));
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thread = qdict_get_int(props, "thread-id");
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- if (thread == 0) {
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+ if (socket == 0 && cluster == 0 && core == 0 && thread == 0) {
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g_assert_cmpint(node, ==, 1);
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- } else if (thread == 1) {
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+ } else if (socket == 1 && cluster == 0 && core == 0 && thread == 0) {
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g_assert_cmpint(node, ==, 0);
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} else {
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g_assert(false);
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--
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2.31.1
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