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So far, we're using a complicated sequence of alternatives to patch the kernel/hyp VA mask on non-VHE, and NOP out the masking altogether when on VHE. The newly introduced dynamic patching gives us the opportunity to simplify that code by patching a single instruction with the correct mask (instead of the mind bending cumulative masking we have at the moment) or even a single NOP on VHE. This also adds some initial code that will allow the patching callback to switch to a more complex patching. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: James Morse <james.morse@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.