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AJvYcCWZ3BMSHvYpX/RNnxNsdGOmbYBR7xnJvO1gwEWFWvIXGmh+PVAHaDqg1RMA5VoK0T8cug8Cbn6bHuvLxWZ5X1w=@vger.kernel.org X-Gm-Message-State: AOJu0YwYYdvA9fIHW/z8qi/d4RXip/xzjjLxZVBwQ/2OqLNXhuVaGoPO SO4BTl0tOlWvdGWC4CyNB8tAfOKpvzxOEqdvukF+oahltU4UkBN7qNQhYR6Eljj4ijT7YjAwCrV WIap7SHKe9bA1Rp1axbTNWA== X-Google-Smtp-Source: AGHT+IEcZ/ghxITnGvgKkAKwRaOU4W9SdtHb2nrXhbk+ACBlgEJVwXnXXaBkRqqDbpe8CxVzylPUbg24aRXjUe363A== X-Received: from ackerleytng-ctop.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:13f8]) (user=ackerleytng job=sendgmr) by 2002:a05:6a00:81c6:b0:718:d8af:4551 with SMTP id d2e1a72fcca58-718d8af4650mr30583b3a.1.1726011906107; Tue, 10 Sep 2024 16:45:06 -0700 (PDT) Date: Tue, 10 Sep 2024 23:43:51 +0000 In-Reply-To: Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.46.0.598.g6f2099f65c-goog Message-ID: <6bfe8c9baabc6ad89ccc2c4481db2b4983cbfd8b.1726009989.git.ackerleytng@google.com> Subject: [RFC PATCH 20/39] KVM: selftests: Add private_mem_conversions_test.sh From: Ackerley Tng To: tabba@google.com, quic_eberman@quicinc.com, roypat@amazon.co.uk, jgg@nvidia.com, peterx@redhat.com, david@redhat.com, rientjes@google.com, fvdl@google.com, jthoughton@google.com, seanjc@google.com, pbonzini@redhat.com, zhiquan1.li@intel.com, fan.du@intel.com, jun.miao@intel.com, isaku.yamahata@intel.com, muchun.song@linux.dev, mike.kravetz@oracle.com Cc: erdemaktas@google.com, vannapurve@google.com, ackerleytng@google.com, qperret@google.com, jhubbard@nvidia.com, willy@infradead.org, shuah@kernel.org, brauner@kernel.org, bfoster@redhat.com, kent.overstreet@linux.dev, pvorel@suse.cz, rppt@kernel.org, richard.weiyang@gmail.com, anup@brainfault.org, haibo1.xu@intel.com, ajones@ventanamicro.com, vkuznets@redhat.com, maciej.wieczor-retman@intel.com, pgonda@google.com, oliver.upton@linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-fsdevel@kvack.org Add private_mem_conversions_test.sh to automate testing of different combinations of private_mem_conversions_test. Signed-off-by: Ackerley Tng --- .../x86_64/private_mem_conversions_test.sh | 88 +++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100755 tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.sh diff --git a/tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.sh b/tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.sh new file mode 100755 index 000000000000..fb6705fef466 --- /dev/null +++ b/tools/testing/selftests/kvm/x86_64/private_mem_conversions_test.sh @@ -0,0 +1,88 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0-only */ +# +# Wrapper script which runs different test setups of +# private_mem_conversions_test. +# +# tools/testing/selftests/kvm/private_mem_conversions_test.sh +# Copyright (C) 2023, Google LLC. + +set -e + +num_vcpus_to_test=4 +num_memslots_to_test=$num_vcpus_to_test + +get_default_hugepage_size_in_kB() { + grep "Hugepagesize:" /proc/meminfo | grep -o '[[:digit:]]\+' +} + +# Required pages are based on the test setup (see computation for memfd_size) in +# test_mem_conversions() in private_mem_migrate_tests.c) + +# These static requirements are set to the maximum required for +# num_vcpus_to_test, over all the hugetlb-related tests +required_num_2m_hugepages=$(( 1024 * num_vcpus_to_test )) +required_num_1g_hugepages=$(( 2 * num_vcpus_to_test )) + +# The other hugetlb sizes are not supported on x86_64 +[ "$(cat /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages 2>/dev/null || echo 0)" -ge "$required_num_2m_hugepages" ] && hugepage_2mb_enabled=1 +[ "$(cat /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages 2>/dev/null || echo 0)" -ge "$required_num_1g_hugepages" ] && hugepage_1gb_enabled=1 + +case $(get_default_hugepage_size_in_kB) in + 2048) + hugepage_default_enabled=$hugepage_2mb_enabled + ;; + 1048576) + hugepage_default_enabled=$hugepage_1gb_enabled + ;; + *) + hugepage_default_enabled=0 + ;; +esac + +backing_src_types=( anonymous ) +backing_src_types+=( anonymous_thp ) +[ -n "$hugepage_default_enabled" ] && \ + backing_src_types+=( anonymous_hugetlb ) || echo "skipping anonymous_hugetlb backing source type" +[ -n "$hugepage_2mb_enabled" ] && \ + backing_src_types+=( anonymous_hugetlb_2mb ) || echo "skipping anonymous_hugetlb_2mb backing source type" +[ -n "$hugepage_1gb_enabled" ] && \ + backing_src_types+=( anonymous_hugetlb_1gb ) || echo "skipping anonymous_hugetlb_1gb backing source type" +backing_src_types+=( shmem ) +[ -n "$hugepage_default_enabled" ] && \ + backing_src_types+=( shared_hugetlb ) || echo "skipping shared_hugetlb backing source type" + +private_mem_backing_src_types=( private_mem_guest_mem ) +[ -n "$hugepage_default_enabled" ] && \ + private_mem_backing_src_types+=( private_mem_hugetlb ) || echo "skipping private_mem_hugetlb backing source type" +[ -n "$hugepage_2mb_enabled" ] && \ + private_mem_backing_src_types+=( private_mem_hugetlb_2mb ) || echo "skipping private_mem_hugetlb_2mb backing source type" +[ -n "$hugepage_1gb_enabled" ] && \ + private_mem_backing_src_types+=( private_mem_hugetlb_1gb ) || echo "skipping private_mem_hugetlb_1gb backing source type" + +set +e + +TEST_EXECUTABLE="$(dirname "$0")/private_mem_conversions_test" + +( + set -e + + for src_type in "${backing_src_types[@]}"; do + + for private_mem_src_type in "${private_mem_backing_src_types[@]}"; do + set -x + + $TEST_EXECUTABLE -s "$src_type" -p "$private_mem_src_type" -n $num_vcpus_to_test + $TEST_EXECUTABLE -s "$src_type" -p "$private_mem_src_type" -n $num_vcpus_to_test -m $num_memslots_to_test + + { set +x; } 2>/dev/null + + echo + + done + + done +) +RET=$? + +exit $RET