be149d86cb
[ Upstream commit 0261a508c9fcb33e60f09cac42032f85c31e2039 ]
This patch creates a debugfs file to see content of
segment registers
# cat /sys/kernel/debug/segment_registers
---[ User Segments ]---
0x00000000-0x0fffffff Kern key 1 User key 1 VSID 0xade2b0
0x10000000-0x1fffffff Kern key 1 User key 1 VSID 0xade3c1
0x20000000-0x2fffffff Kern key 1 User key 1 VSID 0xade4d2
0x30000000-0x3fffffff Kern key 1 User key 1 VSID 0xade5e3
0x40000000-0x4fffffff Kern key 1 User key 1 VSID 0xade6f4
0x50000000-0x5fffffff Kern key 1 User key 1 VSID 0xade805
0x60000000-0x6fffffff Kern key 1 User key 1 VSID 0xade916
0x70000000-0x7fffffff Kern key 1 User key 1 VSID 0xadea27
0x80000000-0x8fffffff Kern key 1 User key 1 VSID 0xadeb38
0x90000000-0x9fffffff Kern key 1 User key 1 VSID 0xadec49
0xa0000000-0xafffffff Kern key 1 User key 1 VSID 0xaded5a
0xb0000000-0xbfffffff Kern key 1 User key 1 VSID 0xadee6b
---[ Kernel Segments ]---
0xc0000000-0xcfffffff Kern key 0 User key 1 VSID 0x000ccc
0xd0000000-0xdfffffff Kern key 0 User key 1 VSID 0x000ddd
0xe0000000-0xefffffff Kern key 0 User key 1 VSID 0x000eee
0xf0000000-0xffffffff Kern key 0 User key 1 VSID 0x000fff
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Move it under /sys/kernel/debug/powerpc, make sr_init() __init]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Stable-dep-of: 66b2ca086210 ("powerpc/64s/radix: Fix soft dirty tracking")
Signed-off-by: Sasha Levin <sashal@kernel.org>
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.
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.