28 lines
1.1 KiB
Plaintext
28 lines
1.1 KiB
Plaintext
# Copyright 2021 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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AUTHOR = "ChromeOS Team"
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NAME = "firmware_CbfsMcache"
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PURPOSE = "Ensure the CBFS metadata cache did not overflow."
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ATTRIBUTES = "suite:faft_bios, suite:faft_bios_ro_qual, suite:faft_bios_rw_qual, suite:faft_lv4"
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CRITERIA = "Fail if either RO or RW CBFS mcache overflowed."
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TIME = "SHORT"
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TEST_CATEGORY = "Functional"
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TEST_CLASS = "firmware"
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TEST_TYPE = "client"
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PY_VERSION = 3
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DOC = """
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The CBFS metadata cache size in coreboot is configured by CONFIG_CBFS_MCACHE_SIZE
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(x86) or the size of the CBFS_MCACHE() region defined in memlayout (arm). If the
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mcache overflows, the platform will still boot securely but needs to read data
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from flash more times than necessary, leading to avoidable boot time impact. If
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this test fails, the mcache size should be increased until it doesn't. (If the
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RW mcache overflows by a lot, adjusting CONFIG_CBFS_MCACHE_RW_PERCENTAGE may
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also be interesting.)
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"""
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job.run_test('firmware_CbfsMcache')
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