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Cédric Le Goater ac5e5a5402 powerpc/xive: add XIVE Exploitation Mode to CAS
On POWER9, the Client Architecture Support (CAS) negotiation process
determines whether the guest operates in XIVE Legacy compatibility or
in XIVE exploitation mode. Now that we have initial guest support for
the XIVE interrupt controller, let's inform the hypervisor what we can
do.

The platform advertises the XIVE Exploitation Mode support using the
property "ibm,arch-vec-5-platform-support-vec-5", byte 23 bits 0-1 :

 - 0b00 XIVE legacy mode Only
 - 0b01 XIVE exploitation mode Only
 - 0b10 XIVE legacy or exploitation mode

The OS asks for XIVE Exploitation Mode support using the property
"ibm,architecture-vec-5", byte 23 bits 0-1:

 - 0b00 XIVE legacy mode Only
 - 0b01 XIVE exploitation mode Only

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-09-02 21:02:38 +10:00
arch powerpc/xive: add XIVE Exploitation Mode to CAS 2017-09-02 21:02:38 +10:00
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certs modsign: add markers to endif-statements in certs/Makefile 2017-07-14 11:01:37 +10:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-07-14 22:49:50 -07:00
Documentation powerpc/powernv/vas: Define vas_init() and vas_exit() 2017-08-31 14:26:26 +10:00
drivers powerpc/macintosh: constify wf_sensor_ops structures 2017-09-01 16:42:54 +10:00
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include mm/hugetlb: Allow arch to override and call the weak function 2017-08-15 23:20:30 +10:00
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sound sound fixes for 4.13-rc1 2017-07-14 12:44:00 -07:00
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MAINTAINERS MAINTAINERS: Add drivers/watchdog/wdrtas.c to powerpc section 2017-08-31 14:26:46 +10:00
Makefile Linux 4.13-rc2 2017-07-23 16:15:17 -07:00
README

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.