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53e80bd042
SCM_READ/WRITE_MEATADATA hcall supports multibyte read/write. This patch updates the metadata read/write to use 1, 2, 4 or 8 byte read/write as mentioned in PAPR document. READ/WRITE_METADATA hcall supports the 1, 2, 4, or 8 bytes read/write. For other values hcall results H_P3. Hypervisor stores the metadata contents in big-endian format and in-order to enable read/write in different granularity, we need to switch the contents to big-endian before calling HCALL. Based on an patch from Oliver O'Halloran <oohall@gmail.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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 Restructured Text 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.