Commit Graph

691513 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab
ae2f26aa4c IRQ-affinity.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Add a title for the document;
- mark literal blocks as such;
- use a bulleted list for changelog.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:41 -06:00
Mauro Carvalho Chehab
f5981a5c59 IPMI.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- fix document type;
- add missing markups for subitems;
- mark literal blocks;
- add whitespaces and blank lines where needed;
- use bulleted list markups where neded.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:40 -06:00
Mauro Carvalho Chehab
877b638ff8 iostats.txt: update it to cover recent Kernels
Everything there that it is said for 2.6 also applies on
current 4.x Kernels. So, update the information there.

While here, use ``foo`` for literals.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:40 -06:00
Mauro Carvalho Chehab
378012cf68 iostats.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- promote main title level;
- mark literal blocks as such;
- Add blank lines to avoid Sphinx errors.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:39 -06:00
Mauro Carvalho Chehab
0e95c85341 io_ordering.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Add a title;
- mark literal-blocks as such.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:39 -06:00
Mauro Carvalho Chehab
9cf5116d5b io-mapping.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Add a title for the document and for API chapter;
- mark literal blocks;
- Adjust whitespacing.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:38 -06:00
Mauro Carvalho Chehab
45d8514626 Intel-IOMMU.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

This file is almost in the right format. It only needed to
convert a list to bulleted list and to use the right markup
for literal blocks.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:38 -06:00
Mauro Carvalho Chehab
7e18c07e79 intel_txt.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- promote main title one level;
- fix the bulleted list markup;
- use bulletted list markup where needed;
- add whitespaces where needed;
- mark literal blocks;
- remove extra ":" after section titles.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:38 -06:00
Mauro Carvalho Chehab
e2862b25dc hwspinlock.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Adjust title markups;
- remove explicit numeration from titles;
- mark literal blocks as such;
- replace _foo_ by **foo** for emphasis;
- adjust whitespaces and add blank lines where needed.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:37 -06:00
Mauro Carvalho Chehab
440e4f6d29 hw_random.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- use proper markups for titles;
- adjust section identation;
- use proper markup for notes and fix it to properly show the
  numbered list.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:37 -06:00
Mauro Carvalho Chehab
e45b082d46 highuid.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- use a markup for the title;
- use :Author: and :Last updated: markups at the beginning with
  authorship info;
- use proper markups for the lists.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:36 -06:00
Mauro Carvalho Chehab
ccd8d5577c gcc-plugins.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- promote main title;
- use the right markup for footnotes;
- use bold markup for files name;
- identify literal blocks;
- add blank lines to avoid Sphinx to complain;
- remove numeration from titles.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:36 -06:00
Mauro Carvalho Chehab
db4df4819c futex-requeue-pi.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- promote level for the document title;
- mark literal blocks.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:35 -06:00
Mauro Carvalho Chehab
af7175bc21 flexible-arrays.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- use :Author: and :Updated: markups;
- use proper markup for the document title;
- mark the literal-blocks.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:35 -06:00
Mauro Carvalho Chehab
72fd15c015 eisa.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- use ReST notation for titles;
- identify literal blocks;
- use :Author: for document authorship;
- use the proper notation for tables;
- adjust whitespaces where needed.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:34 -06:00
Mauro Carvalho Chehab
ef16bcc7f7 efi-stub.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- use proper markups for titles;
- identify literal blocks.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:34 -06:00
Mauro Carvalho Chehab
7c6a2d229d debugging-via-ohci1394.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Mark and adjust titles;
- Mark and indent literal blocks.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:34 -06:00
Mauro Carvalho Chehab
5d75cf6d37 DMA-ISA-LPC.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- use proper markups for titles;
- use :Author: for authorship;
- identify the literal blocks.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:33 -06:00
Mauro Carvalho Chehab
36c682f68e DMA-attributes.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

This file is almost on the standard format. All it needs
to be parsed by Sphinx is to fix its main title and add
a few blank lines.

Yet, it is worth to replace NOTE: by the corresponding
ReST markup.

While here, remove the extra "---" from a subtitle.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:33 -06:00
Mauro Carvalho Chehab
266921bdb5 DMA-API-HOWTO.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Mark titles;
- Mark literal blocks;
- Mark some literals that would otherwise produce warnings;
- Mark authorship.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:32 -06:00
Mauro Carvalho Chehab
03158a70ad DMA-API.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Fix some title marks to match ReST;
- use :Author: for author name;
- foo_ is an hyperlink. Get rid of it;
- Mark literal blocks as such;
- Use tables on some places that are almost using the
  table format.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:32 -06:00
Mauro Carvalho Chehab
a2fbbcea7b digsig.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- comment the internal index;
- use the proper markups for titles;
- mark literal blocks.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:31 -06:00
Mauro Carvalho Chehab
7effa5b0e8 dcdbas.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Mark titles;
- Mark literal blocks;
- Mark table.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:31 -06:00
Mauro Carvalho Chehab
2e4e6f30f7 crc32.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Add a title for the document;
- Mark literal blocks.

While here, replace a comma by a dot at the end of a paragraph.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:30 -06:00
Mauro Carvalho Chehab
e8cb6f1edc cputopology.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Add a title for the document;
- mark literals;
- use table markup for existing table.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:30 -06:00
Mauro Carvalho Chehab
09338fb0f4 cpu-load: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- mark literals;
- Adjust document title;
- Use a list for references.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:30 -06:00
Mauro Carvalho Chehab
f68ac62d11 clk.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Use section/title markups;
- Use :Author: for authorship;
- Mark literals and literal blocks;
- Mark tables;
- Use ReST notation for footnotes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:29 -06:00
Mauro Carvalho Chehab
f1d8b71c5f circular-buffers.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Mark titles with ReST notation;
- comment the contents table;
- Use :Author: tag for authorship;
- mark literal blocks as such;
- use valid numbered list markups;
- Don't capitalize titles.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:29 -06:00
Mauro Carvalho Chehab
fdefdbca7e cachetlb.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Adjust the title format;
- use :Author: for author's name;
- mark literals as such;
- use note and important notation.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:28 -06:00
Mauro Carvalho Chehab
38975e905a bus-virt-phys-mapping.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Move author info to the beginning of file and use :Author:
- use warning/note annotation;
- mark literal blocks as such;
- Add a title for the document;
- use **emphasis** instead of _emphasis_.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:28 -06:00
Mauro Carvalho Chehab
7f4e012133 btmrvl.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Use the right notation for titles;
- Use a list for image names;
- Use literal blocks where needed;
- Whitespace fixes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:27 -06:00
Mauro Carvalho Chehab
b4b8af5c4e bt8xxgpio.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Adjust titles to match the convention;
- use a literal block for ascii artwork.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:27 -06:00
Mauro Carvalho Chehab
a966ac73d7 bcache.txt: standardize document format
Each text file under Documentation follows a different
format. Some doesn't even have titles!

Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:

- Add a title for the document;
- Use a list for the listed URLs;
- mark literal blocks;
- adjust whitespaces;
- Don't capitalize section titles.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-14 13:51:27 -06:00
Linus Torvalds
0a264b6db7 sound fixes for 4.13-rc1
Small last-minute fixes for 4.13-rc1: a couple of PCM fixes for m68k,
 a cleanup work for legacy ISA msnd driver, and a few HD-audio new IDs
 and quirks.
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Merge tag 'sound-fix-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Small last-minute fixes for 4.13-rc1: a couple of PCM fixes for m68k,
  a cleanup work for legacy ISA msnd driver, and a few HD-audio new IDs
  and quirks"

* tag 'sound-fix-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Add hdmi id for a Geminilake variant
  ALSA: hda/realtek - New codec device ID for ALC1220
  ALSA: pcm: Simplify check for dma_mmap_coherent() availability
  ALSA: pcm: Protect call to dma_mmap_coherent() by check for HAS_DMA
  ALSA: msnd: Optimize / harden DSP and MIDI loops
  ALSA: hda/realtek - change the location for one of two front microphones
  ALSA: opl4: Move inline before return type
2017-07-14 12:44:00 -07:00
Linus Torvalds
1e5a2b1fbb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull key handling fixes from James Morris:
 "A minor fix and documentation updates"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  KEYS: Add documentation for asymmetric keyring restrictions
  KEYS: DH: validate __spare field
  modsign: add markers to endif-statements in certs/Makefile
2017-07-14 12:42:07 -07:00
Linus Torvalds
1430858fa8 Small patch to add a clk_bulk_prepare_enable() and
clk_bulk_disable_unprepare() API to the newly introduced
 clk bulk APIs.
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Merge tag 'clk-bulk-get-prep-enable' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk api update from Stephen Boyd:
 "Small patch to add the clk_bulk_prepare_enable() and
  clk_bulk_disable_unprepare() API to the newly introduced
  clk bulk APIs.

  It would be good to get this into the -rc1 so that other
  driver trees can use it for code targeted for the next
  merge window"

* tag 'clk-bulk-get-prep-enable' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: Provide bulk prepare_enable disable_unprepare variants
2017-07-14 12:37:41 -07:00
Linus Torvalds
2931dc7d9d pci-v4.13-fixes-1
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Merge tag 'pci-v4.13-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:

 - fix a typo that broke Rockchip enumeration

 - fix a new memory leak in the ARM host bridge failure path

* tag 'pci-v4.13-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: rockchip: Check for pci_scan_root_bus_bridge() failure correctly
  ARM/PCI: Fix pcibios_init_resource() struct pci_host_bridge leak
2017-07-14 12:36:20 -07:00
Linus Torvalds
d3c329c741 befs fixes for 4.13-rc1
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Merge tag 'befs-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/luisbg/linux-befs

Pull single befs fix from Luis de Bethencourt:
 "Very little activity in the befs file system this time since I'm busy
  settling into a new job"

* tag 'befs-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/luisbg/linux-befs:
  befs: add kernel-doc formatting for befs_bt_read_super()
2017-07-14 12:31:09 -07:00
Liu Bo
c3cfb65630 Btrfs: fix unexpected return value of bio_readpage_error
With blk_status_t conversion (that are now present in master),
bio_readpage_error() may return 1 as now ->submit_bio_hook() may not set
%ret if it runs without problems.

This fixes that unexpected return value by changing
btrfs_check_repairable() to return a bool instead of updating %ret, and
patch is applicable to both codebases with and without blk_status_t.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2017-07-14 20:42:37 +02:00
David Sterba
e8f5b395d5 btrfs: btrfs_create_repair_bio never fails, skip error handling
As the function uses the non-failing bio allocation, we can remove error
handling from the callers as well.

Signed-off-by: David Sterba <dsterba@suse.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2017-07-14 20:42:08 +02:00
David Sterba
c09abff87f btrfs: cloned bios must not be iterated by bio_for_each_segment_all
We've started using cloned bios more in 4.13, there are some specifics
regarding the iteration.  Filipe found [1] that the raid56 iterated a
cloned bio using bio_for_each_segment_all, which is incorrect. The
cloned bios have wrong bi_vcnt and this could lead to silent
corruptions.  This patch adds assertions to all remaining
bio_for_each_segment_all cases.

[1] https://patchwork.kernel.org/patch/9838535/

Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2017-07-14 20:39:31 +02:00
David Sterba
1014f3d68f Merge branch 'next/filipe' into for-4.13-part2
- incremental send fixes
- raid56 corruption fix (cloned bio iteration)
2017-07-14 20:37:38 +02:00
Roman Kagan
d3457c877b kvm: x86: hyperv: make VP_INDEX managed by userspace
Hyper-V identifies vCPUs by Virtual Processor Index, which can be
queried via HV_X64_MSR_VP_INDEX msr.  It is defined by the spec as a
sequential number which can't exceed the maximum number of vCPUs per VM.
APIC ids can be sparse and thus aren't a valid replacement for VP
indices.

Current KVM uses its internal vcpu index as VP_INDEX.  However, to make
it predictable and persistent across VM migrations, the userspace has to
control the value of VP_INDEX.

This patch achieves that, by storing vp_index explicitly on vcpu, and
allowing HV_X64_MSR_VP_INDEX to be set from the host side.  For
compatibility it's initialized to KVM vcpu index.  Also a few variables
are renamed to make clear distinction betweed this Hyper-V vp_index and
KVM vcpu_id (== APIC id).  Besides, a new capability,
KVM_CAP_HYPERV_VP_INDEX, is added to allow the userspace to skip
attempting msr writes where unsupported, to avoid spamming error logs.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2017-07-14 16:28:18 +02:00
Wanpeng Li
52a5c155cf KVM: async_pf: Let guest support delivery of async_pf from guest mode
Adds another flag bit (bit 2) to MSR_KVM_ASYNC_PF_EN. If bit 2 is 1,
async page faults are delivered to L1 as #PF vmexits; if bit 2 is 0,
kvm_can_do_async_pf returns 0 if in guest mode.

This is similar to what svm.c wanted to do all along, but it is only
enabled for Linux as L1 hypervisor.  Foreign hypervisors must never
receive async page faults as vmexits, because they'd probably be very
confused about that.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2017-07-14 14:26:16 +02:00
Wanpeng Li
adfe20fb48 KVM: async_pf: Force a nested vmexit if the injected #PF is async_pf
Add an nested_apf field to vcpu->arch.exception to identify an async page
fault, and constructs the expected vm-exit information fields. Force a
nested VM exit from nested_vmx_check_exception() if the injected #PF is
async page fault.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2017-07-14 14:26:16 +02:00
Wanpeng Li
1261bfa326 KVM: async_pf: Add L1 guest async_pf #PF vmexit handler
This patch adds the L1 guest async page fault #PF vmexit handler, such
by L1 similar to ordinary async page fault.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
[Passed insn parameters to kvm_mmu_page_fault().]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2017-07-14 14:25:24 +02:00
Wanpeng Li
cfcd20e5ca KVM: x86: Simplify kvm_x86_ops->queue_exception parameter list
This patch removes all arguments except the first in
kvm_x86_ops->queue_exception since they can extract the arguments from
vcpu->arch.exception themselves.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2017-07-14 14:24:28 +02:00
Rafael J. Wysocki
9636603da3 Merge branches 'acpi-ec', 'acpi-irq' and 'acpi-quirks'
* acpi-ec:
  Revert "ACPI / EC: Enable event freeze mode..." to fix a regression
  ACPI / EC: Drop EC noirq hooks to fix a regression

* acpi-irq:
  ACPI / irq: Fix return code of acpi_gsi_to_irq()

* acpi-quirks:
  ACPI / x86: Add KIOX000A accelerometer on GPD win to always_present_ids array
  ACPI / x86: Add Dell Venue 11 Pro 7130 touchscreen to always_present_ids
  ACPI / x86: Allow matching always_present_id array entries by DMI
2017-07-14 13:17:53 +02:00
Rafael J. Wysocki
6df609b24b Merge branches 'pm-qos' and 'pm-devfreq'
* pm-qos:
  PM / QoS: return -EINVAL for bogus strings

* pm-devfreq:
  PM / devfreq: constify attribute_group structures.
  PM / devfreq: tegra: fix error return code in tegra_devfreq_probe()
  PM / devfreq: rk3399_dmc: fix error return code in rk3399_dmcfreq_probe()
2017-07-14 13:16:31 +02:00
Rafael J. Wysocki
a252c258dd Merge branches 'pm-cpufreq-sched' and 'intel_pstate'
* pm-cpufreq-sched:
  cpufreq: schedutil: Fix sugov_start() versus sugov_update_shared() race

* intel_pstate:
  cpufreq: intel_pstate: Fix ratio setting for min_perf_pct
2017-07-14 13:16:16 +02:00