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AJvYcCW+FGxcrZMq/iVJX7TAH+SEvwNjXFLxiwVmyKTzsHMlTsPstyQsktyAOOzQurVS2v9muk7dI3v4EX1j7d0=@vger.kernel.org X-Gm-Message-State: AOJu0Yyhh0Av05bMciIpVSaytrO2y1lNbAIwrLvTImOD9wvDtf6Vk0nK T4X/kMZOV11cLi78E8Snyyz9d830768j2GqOnixDvx7mJzs+2wIgDCH4KWvnZBK2gdjwnR1dGYA pxinr7hsO1yY2m+oSUw1mag== X-Google-Smtp-Source: AGHT+IHb7GIqu695NGHdx8kULM1l9ge1FyZ0eSB2cW4x76FAmN4jqpBALaAAXGXP8pOhY4vxYo06cCKYxIVDFuivmw== X-Received: from pjbsv3.prod.google.com ([2002:a17:90b:5383:b0:305:2d2a:dfaa]) (user=ackerleytng job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:288b:b0:2ff:693a:7590 with SMTP id 98e67ed59e1d1-30e2e62ff9emr9683927a91.33.1747266197415; Wed, 14 May 2025 16:43:17 -0700 (PDT) Date: Wed, 14 May 2025 16:41:52 -0700 In-Reply-To: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.49.0.1045.g170613ef41-goog Message-ID: Subject: [RFC PATCH v2 13/51] KVM: selftests: Add script to exercise private_mem_conversions_test From: Ackerley Tng To: kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, x86@kernel.org, linux-fsdevel@vger.kernel.org Cc: ackerleytng@google.com, aik@amd.com, ajones@ventanamicro.com, akpm@linux-foundation.org, amoorthy@google.com, anthony.yznaga@oracle.com, anup@brainfault.org, aou@eecs.berkeley.edu, bfoster@redhat.com, binbin.wu@linux.intel.com, brauner@kernel.org, catalin.marinas@arm.com, chao.p.peng@intel.com, chenhuacai@kernel.org, dave.hansen@intel.com, david@redhat.com, dmatlack@google.com, dwmw@amazon.co.uk, erdemaktas@google.com, fan.du@intel.com, fvdl@google.com, graf@amazon.com, haibo1.xu@intel.com, hch@infradead.org, hughd@google.com, ira.weiny@intel.com, isaku.yamahata@intel.com, jack@suse.cz, james.morse@arm.com, jarkko@kernel.org, jgg@ziepe.ca, jgowans@amazon.com, jhubbard@nvidia.com, jroedel@suse.de, jthoughton@google.com, jun.miao@intel.com, kai.huang@intel.com, keirf@google.com, kent.overstreet@linux.dev, kirill.shutemov@intel.com, liam.merwick@oracle.com, maciej.wieczor-retman@intel.com, mail@maciej.szmigiero.name, maz@kernel.org, mic@digikod.net, michael.roth@amd.com, mpe@ellerman.id.au, muchun.song@linux.dev, nikunj@amd.com, nsaenz@amazon.es, oliver.upton@linux.dev, palmer@dabbelt.com, pankaj.gupta@amd.com, paul.walmsley@sifive.com, pbonzini@redhat.com, pdurrant@amazon.co.uk, peterx@redhat.com, pgonda@google.com, pvorel@suse.cz, qperret@google.com, quic_cvanscha@quicinc.com, quic_eberman@quicinc.com, quic_mnalajal@quicinc.com, quic_pderrin@quicinc.com, quic_pheragu@quicinc.com, quic_svaddagi@quicinc.com, quic_tsoni@quicinc.com, richard.weiyang@gmail.com, rick.p.edgecombe@intel.com, rientjes@google.com, roypat@amazon.co.uk, rppt@kernel.org, seanjc@google.com, shuah@kernel.org, steven.price@arm.com, steven.sistare@oracle.com, suzuki.poulose@arm.com, tabba@google.com, thomas.lendacky@amd.com, usama.arif@bytedance.com, vannapurve@google.com, vbabka@suse.cz, viro@zeniv.linux.org.uk, vkuznets@redhat.com, wei.w.wang@intel.com, will@kernel.org, willy@infradead.org, xiaoyao.li@intel.com, yan.y.zhao@intel.com, yilun.xu@intel.com, yuzenghui@huawei.com, zhiquan1.li@intel.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Makes testing different combinations of private_mem_conversions_test flags easier. Change-Id: I7647e92524baf09eb97e09bdbd95ad57ada44f4b Signed-off-by: Ackerley Tng --- .../kvm/x86/private_mem_conversions_test.sh | 82 +++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100755 tools/testing/selftests/kvm/x86/private_mem_conversions= _test.sh diff --git a/tools/testing/selftests/kvm/x86/private_mem_conversions_test.s= h b/tools/testing/selftests/kvm/x86/private_mem_conversions_test.sh new file mode 100755 index 000000000000..76efa81114d2 --- /dev/null +++ b/tools/testing/selftests/kvm/x86/private_mem_conversions_test.sh @@ -0,0 +1,82 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0-only */ +# +# Wrapper script which runs different test setups of +# private_mem_conversions_test. +# +# Copyright (C) 2024, Google LLC. + +set -e + +num_vcpus_to_test=3D4 +num_memslots_to_test=3D$num_vcpus_to_test + +get_default_hugepage_size_in_kB() { + grep "Hugepagesize:" /proc/meminfo | grep -o '[[:digit:]]\+' +} + +# Required pages are based on the test setup (see computation for memfd_si= ze) in +# test_mem_conversions() in private_mem_migrate_tests.c) + +# These static requirements are set to the maximum required for +# num_vcpus_to_test, over all the hugetlb-related tests +required_num_2m_hugepages=3D$(( 1024 * num_vcpus_to_test )) +required_num_1g_hugepages=3D$(( 2 * num_vcpus_to_test )) + +# The other hugetlb sizes are not supported on x86_64 +[ "$(cat /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages 2>/dev/nul= l || echo 0)" \ + -ge "$required_num_2m_hugepages" ] && hugepage_2mb_enabled=3D1 +[ "$(cat /sys/kernel/mm/hugepages/hugepages-1048576kB/nr_hugepages 2>/dev/= null || echo 0)" \ + -ge "$required_num_1g_hugepages" ] && hugepage_1gb_enabled=3D1 + +case $(get_default_hugepage_size_in_kB) in + 2048) + hugepage_default_enabled=3D$hugepage_2mb_enabled + ;; + 1048576) + hugepage_default_enabled=3D$hugepage_1gb_enabled + ;; + *) + hugepage_default_enabled=3D0 + ;; +esac + +backing_src_types=3D( anonymous ) +backing_src_types+=3D( anonymous_thp ) +[ -n "$hugepage_default_enabled" ] && \ + backing_src_types+=3D( anonymous_hugetlb ) || \ + echo "skipping anonymous_hugetlb backing source type" +[ -n "$hugepage_2mb_enabled" ] && \ + backing_src_types+=3D( anonymous_hugetlb_2mb ) || \ + echo "skipping anonymous_hugetlb_2mb backing source type" +[ -n "$hugepage_1gb_enabled" ] && \ + backing_src_types+=3D( anonymous_hugetlb_1gb ) || \ + echo "skipping anonymous_hugetlb_1gb backing source type" +backing_src_types+=3D( shmem ) +[ -n "$hugepage_default_enabled" ] && \ + backing_src_types+=3D( shared_hugetlb ) || \ + echo "skipping shared_hugetlb backing source type" + +set +e + +TEST_EXECUTABLE=3D"$(dirname "$0")/private_mem_conversions_test" + +( + set -e + + for src_type in "${backing_src_types[@]}"; do + + set -x + + $TEST_EXECUTABLE -s "$src_type" -n $num_vcpus_to_test + $TEST_EXECUTABLE -s "$src_type" -n $num_vcpus_to_test -m $num_memslots_t= o_test + + { set +x; } 2>/dev/null + + echo + + done +) +RET=3D$? + +exit $RET --=20 2.49.0.1045.g170613ef41-goog