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Date:   Tue, 16 Aug 2022 16:44:07 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     Ashok Raj <ashok.raj@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        x86@...nel.org, Borislav Petkov <bp@...e.de>,
        linux-doc@...r.kernel.org
Subject: [tip:x86/microcode 1/2] htmldocs:
 Documentation/admin-guide/tainted-kernels.rst:143: WARNING: Block quote ends
 without a blank line; unexpected unindent.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/microcode
head:   71da8a554f25713964a919311c324e5a32f08239
commit: 35da8ad78e9b1a25d95a281966c439da1ef9a98a [1/2] x86/microcode: Document the whole late loading problem
reproduce: make htmldocs

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> Documentation/admin-guide/tainted-kernels.rst:143: WARNING: Block quote ends without a blank line; unexpected unindent.

vim +143 Documentation/admin-guide/tainted-kernels.rst

896dd323abbf6a Thorsten Leemhuis         2019-01-08  111  
896dd323abbf6a Thorsten Leemhuis         2019-01-08  112   0)  ``G`` if all modules loaded have a GPL or compatible license, ``P`` if
337c188dff4a85 Mauro Carvalho Chehab     2016-11-07  113       any proprietary module has been loaded.  Modules without a
337c188dff4a85 Mauro Carvalho Chehab     2016-11-07  114       MODULE_LICENSE or with a MODULE_LICENSE that is not recognised by
337c188dff4a85 Mauro Carvalho Chehab     2016-11-07  115       insmod as GPL compatible are assumed to be proprietary.
337c188dff4a85 Mauro Carvalho Chehab     2016-11-07  116  
896dd323abbf6a Thorsten Leemhuis         2019-01-08  117   1)  ``F`` if any module was force loaded by ``insmod -f``, ``' '`` if all
337c188dff4a85 Mauro Carvalho Chehab     2016-11-07  118       modules were loaded normally.
337c188dff4a85 Mauro Carvalho Chehab     2016-11-07  119  
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  120   2)  ``S`` if the kernel is running on a processor or system that is out of
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  121       specification: hardware has been put into an unsupported configuration,
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  122       therefore proper execution cannot be guaranteed.
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  123       Kernel will be tainted if, for example:
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  124  
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  125       - on x86: PAE is forced through forcepae on intel CPUs (such as Pentium M)
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  126         which do not report PAE but may have a functional implementation, an SMP
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  127         kernel is running on non officially capable SMP Athlon CPUs, MSRs are
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  128         being poked at from userspace.
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  129       - on arm: kernel running on certain CPUs (such as Keystone 2) without
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  130         having certain kernel features enabled.
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  131       - on arm64: there are mismatched hardware features between CPUs, the
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  132         bootloader has booted CPUs in different modes.
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  133       - certain drivers are being used on non supported architectures (such as
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  134         scsi/snic on something else than x86_64, scsi/ips on non
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  135         x86/x86_64/itanium, have broken firmware settings for the
547f574fd9d5e3 Mathieu Chouquet-Stringer 2020-12-02  136         irqchip/irq-gic on arm64 ...).
35da8ad78e9b1a Ashok Raj                 2022-08-13  137       - x86/x86_64: Microcode late loading is dangerous and will result in
35da8ad78e9b1a Ashok Raj                 2022-08-13  138         tainting the kernel. It requires that all CPUs rendezvous to make sure
35da8ad78e9b1a Ashok Raj                 2022-08-13  139         the update happens when the system is as quiescent as possible. However,
35da8ad78e9b1a Ashok Raj                 2022-08-13  140         a higher priority MCE/SMI/NMI can move control flow away from that
35da8ad78e9b1a Ashok Raj                 2022-08-13  141         rendezvous and interrupt the update, which can be detrimental to the
35da8ad78e9b1a Ashok Raj                 2022-08-13  142         machine.
35da8ad78e9b1a Ashok Raj                 2022-08-13 @143  e

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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