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linux-yocto/6.6: arm: jitter entropy backport

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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>
This commit is contained in:
Bruce Ashfield
2024-01-04 10:36:47 -05:00
committed by Richard Purdie
parent 102927a527
commit 812dbc2769
3 changed files with 13 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
meta/recipes-kernel/linux/linux-yocto-rt_6.6.bb
View File

@@ -14,7 +14,7 @@ python () {
raise bb.parse.SkipRecipe("Set PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable it")
}
SRCREV_machine ?= "bfa11b7b82a8d7a3c3f5a30813a8471be20449ab"
SRCREV_machine ?= "7e43b4538ce1a9084c4a5f1b22372c98aa888958"
SRCREV_meta ?= "11390e802ca72f3549b9356f036b17e54afd7a34"
SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;branch=${KBRANCH};name=machine;protocol=https \

2
meta/recipes-kernel/linux/linux-yocto-tiny_6.6.bb
View File

@@ -17,7 +17,7 @@ DEPENDS += "openssl-native util-linux-native"
KMETA = "kernel-meta"
KCONF_BSP_AUDIT_LEVEL = "2"
SRCREV_machine ?= "50cd24ddb6f0bcae01623196515ce62527bb79df"
SRCREV_machine ?= "ff7ae7b32324226330214197e9b849d1aa35accd"
SRCREV_meta ?= "11390e802ca72f3549b9356f036b17e54afd7a34"
PV = "${LINUX_VERSION}+git"

22
meta/recipes-kernel/linux/linux-yocto_6.6.bb
View File

@@ -18,17 +18,17 @@ KBRANCH:qemux86-64 ?= "v6.6/standard/base"
KBRANCH:qemuloongarch64 ?= "v6.6/standard/base"
KBRANCH:qemumips64 ?= "v6.6/standard/mti-malta64"
SRCREV_machine:qemuarm ?= "30f04f32ffa4d5082530a2ce565387c09a98086d"
SRCREV_machine:qemuarm64 ?= "50cd24ddb6f0bcae01623196515ce62527bb79df"
SRCREV_machine:qemuloongarch64 ?= "50cd24ddb6f0bcae01623196515ce62527bb79df"
SRCREV_machine:qemumips ?= "382508b55bd871d9a81ab6d187abed39e59b277e"
SRCREV_machine:qemuppc ?= "50cd24ddb6f0bcae01623196515ce62527bb79df"
SRCREV_machine:qemuriscv64 ?= "50cd24ddb6f0bcae01623196515ce62527bb79df"
SRCREV_machine:qemuriscv32 ?= "50cd24ddb6f0bcae01623196515ce62527bb79df"
SRCREV_machine:qemux86 ?= "50cd24ddb6f0bcae01623196515ce62527bb79df"
SRCREV_machine:qemux86-64 ?= "50cd24ddb6f0bcae01623196515ce62527bb79df"
SRCREV_machine:qemumips64 ?= "90d9017819a05360dbf3fd2f6471cbbb3fe78db5"
SRCREV_machine ?= "50cd24ddb6f0bcae01623196515ce62527bb79df"
SRCREV_machine:qemuarm ?= "b0567ccb83b03434efe6bc00d7d672a59d50b82a"
SRCREV_machine:qemuarm64 ?= "ff7ae7b32324226330214197e9b849d1aa35accd"
SRCREV_machine:qemuloongarch64 ?= "ff7ae7b32324226330214197e9b849d1aa35accd"
SRCREV_machine:qemumips ?= "df19050d1276ce9418652a39c31b77925b18fb17"
SRCREV_machine:qemuppc ?= "ff7ae7b32324226330214197e9b849d1aa35accd"
SRCREV_machine:qemuriscv64 ?= "ff7ae7b32324226330214197e9b849d1aa35accd"
SRCREV_machine:qemuriscv32 ?= "ff7ae7b32324226330214197e9b849d1aa35accd"
SRCREV_machine:qemux86 ?= "ff7ae7b32324226330214197e9b849d1aa35accd"
SRCREV_machine:qemux86-64 ?= "ff7ae7b32324226330214197e9b849d1aa35accd"
SRCREV_machine:qemumips64 ?= "2cab83c3f46765b9390918a91c4fc64a873a3443"
SRCREV_machine ?= "ff7ae7b32324226330214197e9b849d1aa35accd"
SRCREV_meta ?= "11390e802ca72f3549b9356f036b17e54afd7a34"
# set your preferred provider of linux-yocto to 'linux-yocto-upstream', and you'll