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812dbc2769
Integrating the following commit(s) to linux-yocto/6.6:
1/1 [
Author: Stephan Müller
Email: smueller@chronox.de
Subject: crypto: jitter - add RCT/APT support for different OSRs
Date: Thu, 21 Sep 2023 13:48:11 +0200
The oversampling rate (OSR) value specifies the heuristically implied
entropy in the recorded data - H_submitter = 1/osr. A different entropy
estimate implies a different APT/RCT cutoff value. This change adds
support for OSRs 1 through 15. This OSR can be selected by the caller
of the Jitter RNG.
For this patch, the caller still uses one hard-coded OSR. A subsequent
patch allows this value to be configured.
In addition, the power-up self test is adjusted as follows:
* It allows the caller to provide an oversampling rate that should be
tested with - commonly it should be the same as used for the actual
runtime operation. This makes the power-up testing therefore consistent
with the runtime operation.
* It calls now jent_measure_jitter (i.e. collects the full entropy
that can possibly be harvested by the Jitter RNG) instead of only
jent_condition_data (which only returns the entropy harvested from
the conditioning component). This should now alleviate reports where
the Jitter RNG initialization thinks there is too little entropy.
* The power-up test now solely relies on the (enhanced) APT and RCT
test that is used as a health test at runtime.
The code allowing the different OSRs as well as the power-up test
changes are present in the user space version of the Jitter RNG 3.4.1
and thus was already in production use for some time.
Reported-by "Ospan, Abylay" <aospan@amazon.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
]
(From OE-Core rev: 1349b759e9b8f363ab9a9feec531f3a877f97dec)
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
49 lines
2.1 KiB
BlitzBasic
49 lines
2.1 KiB
BlitzBasic
KBRANCH ?= "v6.6/standard/preempt-rt/base"
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require recipes-kernel/linux/linux-yocto.inc
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# CVE exclusions
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include recipes-kernel/linux/cve-exclusion_6.6.inc
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# Skip processing of this recipe if it is not explicitly specified as the
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# PREFERRED_PROVIDER for virtual/kernel. This avoids errors when trying
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# to build multiple virtual/kernel providers, e.g. as dependency of
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# core-image-rt-sdk, core-image-rt.
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python () {
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if d.getVar("KERNEL_PACKAGE_NAME") == "kernel" and d.getVar("PREFERRED_PROVIDER_virtual/kernel") != "linux-yocto-rt":
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raise bb.parse.SkipRecipe("Set PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable it")
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}
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SRCREV_machine ?= "7e43b4538ce1a9084c4a5f1b22372c98aa888958"
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SRCREV_meta ?= "11390e802ca72f3549b9356f036b17e54afd7a34"
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SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;branch=${KBRANCH};name=machine;protocol=https \
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git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-6.6;destsuffix=${KMETA};protocol=https"
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LINUX_VERSION ?= "6.6.9"
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LIC_FILES_CHKSUM = "file://COPYING;md5=6bc538ed5bd9a7fc9398086aedcd7e46"
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DEPENDS += "${@bb.utils.contains('ARCH', 'x86', 'elfutils-native', '', d)}"
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DEPENDS += "openssl-native util-linux-native"
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PV = "${LINUX_VERSION}+git"
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KMETA = "kernel-meta"
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KCONF_BSP_AUDIT_LEVEL = "1"
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LINUX_KERNEL_TYPE = "preempt-rt"
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COMPATIBLE_MACHINE = "^(qemux86|qemux86-64|qemuarm|qemuarmv5|qemuarm64|qemuppc|qemumips)$"
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KERNEL_DEVICETREE:qemuarmv5 = "arm/versatile-pb.dtb"
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# Functionality flags
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KERNEL_EXTRA_FEATURES ?= "features/netfilter/netfilter.scc features/taskstats/taskstats.scc"
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KERNEL_FEATURES:append = " ${KERNEL_EXTRA_FEATURES}"
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KERNEL_FEATURES:append:qemuall=" cfg/virtio.scc features/drm-bochs/drm-bochs.scc"
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KERNEL_FEATURES:append:qemux86=" cfg/sound.scc cfg/paravirt_kvm.scc"
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KERNEL_FEATURES:append:qemux86-64=" cfg/sound.scc cfg/paravirt_kvm.scc"
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KERNEL_FEATURES:append = "${@bb.utils.contains("DISTRO_FEATURES", "ptest", " features/scsi/scsi-debug.scc", "", d)}"
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KERNEL_FEATURES:append = "${@bb.utils.contains("DISTRO_FEATURES", "ptest", " features/gpio/mockup.scc", "", d)}"
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