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2ca1a06a54
Linux 3.14 unconditionally reads the RAPL PMU MSRs on boot, without handling General Protection Faults on reading those MSRs. Rather than injecting a #GP, which prevents boot, handle the MSRs by returning 0 for their data. Zero was checked to be safe by code review of the RAPL PMU driver and in discussion with the original driver author (eranian@google.com). Signed-off-by: Venkatesh Srinivas <venkateshs@google.com> Signed-off-by: Jon Cargille <jcargill@google.com> Reviewed-by: Jim Mattson <jmattson@google.com> Message-Id: <20200416184254.248374-1-jcargill@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.