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POWER7 compat mode guests can use h_set_dabr on POWER9. POWER9 should use the DAWR but since it's disabled there we can't. This returns H_UNSUPPORTED on a h_set_dabr() on POWER9 where the DAWR is disabled. Current Linux guests ignore this error, so they will silently not get the DAWR (sigh). The same error code is being used by POWERVM in this case. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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.