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23b33d1e16
Add code to head.S's el2_setup to detect MPAM and disable any EL2 traps. This register resets to an unknown value, setting it to the default parititons/pmg before we enable the MMU is the best thing to do. Kexec/kdump will depend on this if the previous kernel left the CPU configured with a restrictive configuration. If linux is booted at the highest implemented exception level el2_setup will clear the enable bit, disabling MPAM. This code can't be enabled until a subsequent patch adds the Kconfig and cpufeature boiler plate. Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Joey Gouly <joey.gouly@arm.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20241030160317.2528209-3-joey.gouly@arm.com Signed-off-by: Oliver Upton <oliver.upton@linux.dev> |
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| .clang-format | ||
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| README | ||
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 reStructuredText 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.