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c025da0f14
The va_high_addr_switch selftest is used to test mmap across 128TB boundary. It divides the selftest cases into two main categories on the basis of size. One set is used to create mappings that are multiples of PAGE_SIZE while the other creates mappings that are multiples of HUGETLB_SIZE. In order to run the hugetlb testcases the binary must be appended with "--run-hugetlb" but the file that used to run the test only invokes the binary, thereby completely skipping the hugetlb testcases. Hence, the required statement has been added. Link: https://lkml.kernel.org/r/20230323105243.2807166-6-chaitanyas.prakash@arm.com Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
59 lines
1.4 KiB
Bash
59 lines
1.4 KiB
Bash
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Copyright (C) 2022 Adam Sindelar (Meta) <adam@wowsignal.io>
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#
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# This is a test for mmap behavior with 5-level paging. This script wraps the
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# real test to check that the kernel is configured to support at least 5
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# pagetable levels.
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# 1 means the test failed
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exitcode=1
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# Kselftest framework requirement - SKIP code is 4.
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ksft_skip=4
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fail()
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{
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echo "$1"
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exit $exitcode
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}
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check_supported_x86_64()
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{
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local config="/proc/config.gz"
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[[ -f "${config}" ]] || config="/boot/config-$(uname -r)"
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[[ -f "${config}" ]] || fail "Cannot find kernel config in /proc or /boot"
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# gzip -dcfq automatically handles both compressed and plaintext input.
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# See man 1 gzip under '-f'.
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local pg_table_levels=$(gzip -dcfq "${config}" | grep PGTABLE_LEVELS | cut -d'=' -f 2)
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if [[ "${pg_table_levels}" -lt 5 ]]; then
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echo "$0: PGTABLE_LEVELS=${pg_table_levels}, must be >= 5 to run this test"
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exit $ksft_skip
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fi
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}
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check_test_requirements()
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{
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# The test supports x86_64 and powerpc64. We currently have no useful
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# eligibility check for powerpc64, and the test itself will reject other
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# architectures.
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case `uname -m` in
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"x86_64")
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check_supported_x86_64
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;;
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*)
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return 0
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;;
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esac
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}
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check_test_requirements
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./va_high_addr_switch
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# In order to run hugetlb testcases, "--run-hugetlb" must be appended
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# to the binary.
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./va_high_addr_switch --run-hugetlb
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