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This replaces almost all of the instruction emulation code in fix_alignment() with calls to analyse_instr(), emulate_loadstore() and emulate_dcbz(). The only emulation code left is the SPE emulation code; analyse_instr() etc. do not handle SPE instructions at present. One result of this is that we can now handle alignment faults on all the new VSX load and store instructions that were added in POWER9. VSX loads/stores will take alignment faults for unaligned accesses to cache-inhibited memory. Another effect is that we no longer rely on the DAR and DSISR values set by the processor. With this, we now need to include the instruction emulation code unconditionally. Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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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.