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el1_sync unmasks exceptions on a case-by-case basis, debug exceptions are unmasked, unless this was a debug exception. IRQs are unmasked for instruction and data aborts only if the interupted context had irqs unmasked. Following our 'dai' order, el1_dbg should run with everything masked. For the other cases we can inherit whatever we interrupted. Add a macro inherit_daif to set daif based on the interrupted pstate. Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Julien Thierry <julien.thierry@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@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.