On 10/12/20 7:46 PM, Fenghua Yu wrote: > Intel Memory Bandwidth Monitoring (MBM) counters may report system > memory bandwidth incorrectly on some Intel processors. The errata are > reported in erratum SKX99 [1], erratum BDF102 [2] and RDT reference > manual [3]. > > To work around the errata, MBM total and local readings are corrected > using a correction factor table. > > Since the correction factor table is not publicly documented anywhere, > the table and the errata are documented in Documentation/x86/resctrl.rst > for future reference. The resctrl.rst file is renamed from > Documentation/x86/resctrl_ui.rst because the file won't contain user > interface only anymore. > > 1. Erratum SKX99 in Intel Xeon Processor Scalable Family Specification > Update: > http://web.archive.org/web/20200716124958/https://www.intel.com/content/www/us/en/processors/xeon/scalable/xeon-scalable-spec-update.html > 2. Erratum BDF102 in Intel Xeon E5-2600 v4 Processor Product Family > Specification Update: > http://web.archive.org/web/20191125200531/https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-e5-v4-spec-update.pdf > 3. The errata in Intel Resource Director Technology (Intel RDT) on 2nd > Generation Intel Xeon Scalable Processors Reference Manual: > https://software.intel.com/content/www/us/en/develop/articles/intel-resource-director-technology-rdt-reference-manual.html > > Suggested-by: Borislav Petkov <[email protected]> > Signed-off-by: Fenghua Yu <[email protected]> > --- > Change Log: > v2: > - Document the correction factor table and errata in resctrl.rst (Boris). > - Change the documentation URLs to stable archive.org (Tony). > > Documentation/conf.py | 2 +- > Documentation/x86/index.rst | 2 +- > .../x86/{resctrl_ui.rst => resctrl.rst} | 82 +++++++++++++++++++ > 3 files changed, 84 insertions(+), 2 deletions(-) > rename Documentation/x86/{resctrl_ui.rst => resctrl.rst} (92%) > > diff --git a/Documentation/conf.py b/Documentation/conf.py > index c503188880d9..b5b2be8eec22 100644 > --- a/Documentation/conf.py > +++ b/Documentation/conf.py > @@ -36,7 +36,7 @@ needs_sphinx = '1.3' > # Add any Sphinx extension module names here, as strings. They can be > # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom > # ones. > -extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include', 'cdomain', > +extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include', > 'kfigure', 'sphinx.ext.ifconfig', 'automarkup', > 'maintainers_include', 'sphinx.ext.autosectionlabel' ]
Hi, I don't see this change described in the patch description. Should it be here? thanks. -- ~Randy
