Commit Graph

1305 Commits

Author SHA1 Message Date
Eric Blake
bb40ebce2c qcow2: List autoclear bit names in header
The feature table is supposed to advertise the name of all feature
bits that we support; however, we forgot to update the table for
autoclear bits.  While at it, move the table to read-only memory in
code, and tweak the qcow2 spec to name the second autoclear bit.
Update iotests that are affected by the longer header length.

Fixes: 88ddffae
Fixes: 93c24936
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200324174233.1622067-3-eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-03-26 14:44:33 +01:00
Mao Zhongyi
06b1c6f8b7 xbzrle: update xbzrle doc
Add new parameter description, also:
1. Remove unsociable space.
2. Nit picking: s/two/2 in report

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Message-Id: <20200320143216.423374-1-maozhongyi@cmss.chinamobile.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-03-25 12:31:38 +00:00
Stefan Hajnoczi
7b46aadbbf qemu-ga: document vsock-listen in the man page
Although qemu-ga has supported vsock since 2016 it was not documented on
the man page.

Also add the socket address representation to the qga --help output.

Fixes: 586ef5dee7
       ("qga: add vsock-listen method")
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2020-03-24 11:32:19 -05:00
Cornelia Huck
f58f084e71 Documentation: create/move s390x documentation
Create a subdirectory for s390x under docs/system/ and move the
existing vfio-ap documentation there.

Create an initial document describing s390x system emulation.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20200318103940.1169-1-cohuck@redhat.com>
2020-03-23 12:36:27 +01:00
Peter Maydell
9b26a61093 Update copyright date for user-facing copyright strings
Update the copyright date to 2020 for the copyright strings which are
user-facing and represent overall copyright info for all of QEMU.

Reported-by: John Arbuckle <programmingkidx@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200316112006.19107-1-peter.maydell@linaro.org
2020-03-22 11:16:21 +00:00
Peter Maydell
f57587c7d4 QAPI patches for 2020-03-17
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2020-03-17' into staging

QAPI patches for 2020-03-17

# gpg: Signature made Tue 17 Mar 2020 20:50:54 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2020-03-17: (30 commits)
  net: Track netdevs in NetClientState rather than QemuOpt
  net: Complete qapi-fication of netdev_add
  qmp: constify QmpCommand and list
  qapi: Mark deprecated QMP parts with feature 'deprecated'
  qapi: New special feature flag "deprecated"
  qapi: Replace qmp_dispatch()'s TODO comment by an explanation
  qapi: Simplify how qmp_dispatch() gets the request ID
  qapi: Simplify how qmp_dispatch() deals with QCO_NO_SUCCESS_RESP
  qapi: Inline do_qmp_dispatch() into qmp_dispatch()
  qapi: Add feature flags to struct members
  qapi/schema: Call QAPIDoc.connect_member() in just one place
  qapi/schema: Rename QAPISchemaObjectType{Variant,Variants}
  qapi/schema: Reorder classes so related ones are together
  qapi/schema: Change _make_features() to a take feature list
  qapi/introspect: Factor out _make_tree()
  qapi/introspect: Rename *qlit* to reduce confusion
  qapi: Consistently put @features parameter right after @ifcond
  qapi: Add feature flags to remaining definitions
  qapi/schema: Clean up around QAPISchemaEntity.connect_doc()
  tests/test-qmp-event: Check event is actually emitted
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-19 10:18:07 +00:00
Peter Maydell
b319df5537 ppc patch queue 2020-03-17
Here's my final pull request for the qemu-5.0 soft freeze.  Sorry this
 is just under the wire - I hit some last minute problems that took a
 while to fix up and retest.
 
 Highlights are:
  * Numerous fixes for the FWNMI feature
  * A handful of cleanups to the device tree construction code
  * Numerous fixes for the spapr-vscsi device
  * A number of fixes and cleanups for real mode (MMU off) softmmu
    handling
  * Fixes for handling of the PAPR RMA
  * Better handling of hotplug/unplug events during boot
  * Assorted other fixes
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-5.0-20200317' into staging

ppc patch queue 2020-03-17

Here's my final pull request for the qemu-5.0 soft freeze.  Sorry this
is just under the wire - I hit some last minute problems that took a
while to fix up and retest.

Highlights are:
 * Numerous fixes for the FWNMI feature
 * A handful of cleanups to the device tree construction code
 * Numerous fixes for the spapr-vscsi device
 * A number of fixes and cleanups for real mode (MMU off) softmmu
   handling
 * Fixes for handling of the PAPR RMA
 * Better handling of hotplug/unplug events during boot
 * Assorted other fixes

# gpg: Signature made Tue 17 Mar 2020 09:55:07 GMT
# gpg:                using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-5.0-20200317: (45 commits)
  pseries: Update SLOF firmware image
  ppc/spapr: Ignore common "ibm,nmi-interlock" Linux bug
  ppc/spapr: Implement FWNMI System Reset delivery
  target/ppc: allow ppc_cpu_do_system_reset to take an alternate vector
  ppc/spapr: Allow FWNMI on TCG
  ppc/spapr: Fix FWNMI machine check interrupt delivery
  ppc/spapr: Add FWNMI System Reset state
  ppc/spapr: Change FWNMI names
  ppc/spapr: Fix FWNMI machine check failure handling
  spapr: Rename DT functions to newer naming convention
  spapr: Move creation of ibm,architecture-vec-5 property
  spapr: Move creation of ibm,dynamic-reconfiguration-memory dt node
  spapr/rtas: Reserve space for RTAS blob and log
  pseries: Update SLOF firmware image
  ppc/spapr: Move GPRs setup to one place
  target/ppc: Fix rlwinm on ppc64
  spapr/xive: use SPAPR_IRQ_IPI to define IPI ranges exposed to the guest
  hw/scsi/spapr_vscsi: Convert debug fprintf() to trace event
  hw/scsi/spapr_vscsi: Prevent buffer overflow
  hw/scsi/spapr_vscsi: Do not mix SRP IU size with DMA buffer size
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-18 15:07:57 +00:00
Markus Armbruster
f965e8fea6 qapi: New special feature flag "deprecated"
Unlike regular feature flags, the new special feature flag
"deprecated" is recognized by the QAPI generator.  For now, it's only
permitted with commands, events, and struct members.  It will be put
to use shortly.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200317115459.31821-26-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Doc typo fixed]
2020-03-17 21:42:47 +01:00
Markus Armbruster
84ab008687 qapi: Add feature flags to struct members
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200317115459.31821-21-armbru@redhat.com>
2020-03-17 21:25:47 +01:00
Markus Armbruster
013b4efc9b qapi: Add feature flags to remaining definitions
In v4.1.0, we added feature flags just to struct types (commit
6a8c0b5102^..f3ed93d545), to satisfy an immediate need (commit
c9d4070991 "file-posix: Add dynamic-auto-read-only QAPI feature").  In
v4.2.0, we added them to commands (commit 23394b4c39 "qapi: Add
feature flags to commands") to satisfy another immediate need (commit
d76744e65e "qapi: Allow introspecting fix for savevm's cooperation
with blockdev").

Add them to the remaining definitions: enumeration types, union types,
alternate types, and events.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200317115459.31821-13-armbru@redhat.com>
2020-03-17 19:58:34 +01:00
Markus Armbruster
86014c64f9 docs/devel/qapi-code-gen: Document 'features' introspection
Commit 6a8c0b5102 "qapi: Add feature flags to struct types" neglected
to update section "Client JSON Protocol introspection", and commit
23394b4c39 "qapi: Add feature flags to commands" didn't either.  Make
up for that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200317115459.31821-5-armbru@redhat.com>
2020-03-17 19:58:34 +01:00
Markus Armbruster
ad52292ea1 docs/devel/qapi-code-gen: Clarify allow-oob introspection
Mention SchemaInfo variant member "allow-oob" defaults to false.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200317115459.31821-4-armbru@redhat.com>
2020-03-17 19:58:34 +01:00
Markus Armbruster
73756ae3e3 qemu-doc: Belatedly document QMP command arg & result deprecation
A number of deprecated QMP arguments and results were missed in commit
eb22aeca65 "docs: document deprecation policy & deprecated features in
appendix" (v2.10.0):

* Commit b33945cfff "block: Accept device model name for
  blockdev-open/close-tray" (v2.8.0) deprecated blockdev-open-tray,
  blockdev-close-tray argument @device.

* Commit fbe2d8163e "block: Accept device model name for eject"
  (v2.8.0) deprecated eject argument @device.

* Commit 70e2cb3bd7 "block: Accept device model name for
  blockdev-change-medium" (v2.8.0) deprecated blockdev-change-medium
  argument @device.

* Commit 7a9877a026 "block: Accept device model name for
  block_set_io_throttle" (v2.8.0) deprecated block_set_io_throttle
  argument @device.

* Commit c01c214b69 "block: remove all encryption handling APIs"
  (v2.10.0) deprecated query-named-block-nodes result
  @encryption_key_missing and query-block result @inserted member
  @encryption_key_missing.

* Commit c42e8742f5 "block: Use JSON null instead of "" to disable
  backing file" (v2.10.0) deprecated blockdev-add empty string
  argument @backing.

Since then, we missed a few more:

* Commit 3c605f4074 "commit: Add top-node/base-node options" (v3.1.0)
  deprecated block-commit arguments @base and @top.

* Commit 4db6ceb0b5 "block/dirty-bitmap: add recording and busy
  properties" (v4.0.0) deprecated query-named-block-nodes result
  @dirty-bitmaps member @status, not just query-block.

Make up for all that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200317115459.31821-2-armbru@redhat.com>
2020-03-17 19:58:34 +01:00
Markus Armbruster
942ab6865a docs/devel/qapi-code-gen: Fix typo in grammar
An ALTERNATIVE's value can only be a type name.  Arrays are not
supported, yet.  The text gets it right: "The form STRING is shorthand
for { 'type': STRING }."  The grammar doesn't.  Fix it.

Fixes: b6c37ebaaf
Reported-by: John Snow <jsnow@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200309142638.19988-1-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2020-03-17 17:34:21 +01:00
Greg Kurz
22062e54bb ppc: Officially deprecate the CPU "compat" property
Server class POWER CPUs have a "compat" property, which was obsoleted
by commit 7843c0d60d and replaced by a "max-cpu-compat" property on the
pseries machine type. A hack was introduced so that passing "compat" to
-cpu would still produce the desired effect, for the sake of backward
compatibility : it strips the "compat" option from the CPU properties
and applies internally it to the pseries machine. The accessors of the
"compat" property were updated to do nothing but warn the user about the
deprecated status when doing something like:

$ qemu-system-ppc64 -global POWER9-family-powerpc64-cpu.compat=power9
qemu-system-ppc64: warning: CPU 'compat' property is deprecated and has no
 effect; use max-cpu-compat machine property instead

This was merged during the QEMU 2.10 timeframe, a few weeks before we
formalized our deprecation process. As a consequence, the "compat"
property fell through the cracks and was never listed in the officialy
deprecated features.

We are now eight QEMU versions later, it is largely time to mention it
in qemu-deprecated.texi. Also, since -global XXX-powerpc64-cpu.compat=
has been emitting warnings since QEMU 2.10 and the usual way of setting
CPU properties is with -cpu, completely remove the "compat" property.
Keep the hack so that -cpu XXX,compat= stays functional some more time,
as required by our deprecation process.

The now empty powerpc_servercpu_properties[] list which was introduced
for "compat" and never had any other use is removed on the way. We can
re-add it in the future if the need for a server class POWER CPU specific
property arises again.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <158274357799.140275.12263135811731647490.stgit@bahia.lan>
[dwg: Convert from .texi to .rst to match upstream change]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-03-17 09:41:14 +11:00
Kashyap Chamarthy
3b2c52c017 qemu-cpu-models.rst: Document -noTSX, mds-no, taa-no, and tsx-ctrl
- Add the '-noTSX' variants for CascadeLake and SkyLake.

- Document the three MSR bits: 'mds-no', 'taa-no', and 'tsx-ctrl'

  Two confusing things about 'mds-no' (and the first point applies to
  the other two MSRs too):

  (1) The 'mds-no' bit will _not_ show up in the guest's /proc/cpuinfo.
      Rather it is used to fill in the guest's sysfs:

        /sys/devices/system/cpu/vulnerabilities/mds:Not affected

      Paolo confirmed on IRC as such.

  (2) There are _three_ variants[+] of CascadeLake CPUs, with different
      stepping levels: 5, 6, and 7.  To quote wikichip.org[*]:

        "note that while steppings 6 & 7 are fully mitigated, earlier
        stepping 5 is not protected against MSBDS, MLPDS, nor MDSUM"

      The above is also indicated in the Intel's document[+], as
      indicated by "No" under the three columns of MFBDS, MSBDS, and
      MLPDS.

  I've expressed this in the docs without belabouring the details.

      [+] https://software.intel.com/security-software-guidance/insights/processors-affected-microarchitectural-data-sampling
      [*] https://en.wikichip.org/wiki/intel/microarchitectures/cascade_lake#Key_changes_from_Skylake

Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
Message-Id: <20200225165618.6571-3-kchamart@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-16 23:02:25 +01:00
Philippe Mathieu-Daudé
880a7817c1 misc: Replace zero-length arrays with flexible array member (manual)
Description copied from Linux kernel commit from Gustavo A. R. Silva
(see [3]):

--v-- description start --v--

  The current codebase makes use of the zero-length array language
  extension to the C90 standard, but the preferred mechanism to
  declare variable-length types such as these ones is a flexible
  array member [1], introduced in C99:

  struct foo {
      int stuff;
      struct boo array[];
  };

  By making use of the mechanism above, we will get a compiler
  warning in case the flexible array does not occur last in the
  structure, which will help us prevent some kind of undefined
  behavior bugs from being unadvertenly introduced [2] to the
  Linux codebase from now on.

--^-- description end --^--

Do the similar housekeeping in the QEMU codebase (which uses
C99 since commit 7be41675f7).

All these instances of code were found with the help of the
following command (then manual analysis, without modifying
structures only having a single flexible array member, such
QEDTable in block/qed.h):

  git grep -F '[0];'

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76497732932f
[3] https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git/commit/?id=17642a2fbd2c1

Inspired-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-16 22:07:42 +01:00
Niek Linnenbank
0553ef4257 docs: add Orange Pi PC document
The Xunlong Orange Pi PC machine is a functional ARM machine
based on the Allwinner H3 System-on-Chip. It supports mainline
Linux, U-Boot, NetBSD and is covered by acceptance tests.

This commit adds a documentation text file with a description
of the machine and instructions for the user.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200311221854.30370-19-nieklinnenbank@gmail.com
[PMM: moved file into docs/system/arm to match the reorg
of the arm target part of the docs; tweaked heading to
match other boards]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-12 16:27:33 +00:00
Peter Maydell
6fe6d6c9a9 docs: Be consistent about capitalization of 'Arm'
The company 'Arm' went through a rebranding some years back
involving a recapitalization from 'ARM' to 'Arm'. As a result
our documentation is a bit inconsistent between the two forms.
It's not worth trying to update everywhere in QEMU, but it's
easy enough to make docs/ consistent.

Note that "ARMv8" and similar architecture names, and
older CPU names like "ARM926" still retain all-caps.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200309215818.2021-6-peter.maydell@linaro.org
2020-03-12 11:20:20 +00:00
Peter Maydell
34f18ab14d docs: Move arm-cpu-features.rst into the system manual
Now we have somewhere to put arm-specific rst documentation,
we can move arm-cpu-features.rst from the docs/ top level
directory into docs/system/arm/.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200309215818.2021-5-peter.maydell@linaro.org
2020-03-12 11:20:20 +00:00
Peter Maydell
d3149c590d docs/system/target-arm.rst: Add some introductory text
Now we've moved the various bits of per-board documentation into
their own files, the top level document is a little bare. Add
some introductory information, including a note that many
of the board models we support are currently undocumented.

(Most sections of this new text were originally written by me
for the wiki page https://wiki.qemu.org/Documentation/Platforms/ARM)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200309215818.2021-4-peter.maydell@linaro.org
2020-03-12 11:20:20 +00:00
Peter Maydell
c11a8e890c docs/system: Split target-arm.rst into sub-documents
Currently the documentation for Arm system emulator targets is in a
single target-arm.rst.  This describes only some of the boards and
often in a fairly abbreviated fashion. Restructure it so that each
board has its own documentation file in the docs/system/arm/
subdirectory.

This will hopefully encourage us to write board documentation that
describes the board in detail, rather than a few brief paragraphs
in a single long page. The table of contents should also help users
to find the board they care about faster.

Once the structure is in place we'll be able to move microvm.rst
from the top-level docs/ directory.

All the text from the old page is retained, except for the final
paragraph ("A Linux 2.6 test image is available on the QEMU web site.
More information is available in the QEMU mailing-list archive."),
which is deleted. The git history shows this was originally added
in reference to the integratorcp board (at that time the only
Arm board that was supported), and has subsequently gradually been
further and further separated from the integratorcp documentation
by the insertion of other board documentation sections. It's
extremely out of date and no longer accurate, since AFAICT there
isn't an integratorcp kernel on the website any more; so better
deleted than retained.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200309215818.2021-3-peter.maydell@linaro.org
2020-03-12 11:20:20 +00:00
Peter Maydell
3290e12d6c docs/qemu-option-trace.rst.inc: Remove redundant comment
The Texinfo version of the tracing options documentation has now
been deleted, so we can remove the now-redundant comment at the top
of the rST version that was reminding us that the two should be
kept in sync.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200306171749.10756-8-peter.maydell@linaro.org
2020-03-12 11:14:06 +00:00
Peter Maydell
b29a59fb66 docs/index.rst, docs/index.html.in: Reorder manuals
Now that qemu-doc.html is no longer present, the ordering of manuals
within the top-level index page looks a bit odd. Reshuffle so that
the manuals the user is most likely to be interested in are at the
top of the list, and the reference material is at the bottom.

Similarly, we reorder the index.rst file used as the base of
the "all manuals in one" documentation for readthedocs.

The new order is:
 * system
 * user
 * tools
 * interop
 * specs
 * QMP reference (if present)
 * Guest agent protocol reference (if present)
 * devel (if present)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200306171749.10756-7-peter.maydell@linaro.org
2020-03-12 11:14:06 +00:00
Peter Maydell
80a046c51a docs/sphinx/hxtool.py: Remove STEXI/ETEXI support
Now that none of our input .hx files have STEXI/ETEXI blocks,
we can remove the code in the Sphinx hxtool extension that
supported parsing them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200306171749.10756-5-peter.maydell@linaro.org
2020-03-12 11:14:06 +00:00
Thomas Huth
b4983c570c net: Remove deprecated [hub_id name] tuple of 'hostfwd_add' / 'hostfwd_remove'
It's been deprecated since QEMU v3.1.0. Time to finally remove it now.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191205104109.18680-1-thuth@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  Reworked Thomas's deprecated.texi to the rst
2020-03-09 18:44:04 +00:00
Kevin Wolf
5f07c4d60d qapi: Flatten object-add
Mapping object-add to the command line as is doesn't result in nice
syntax because of the nesting introduced with 'props'. This becomes
nicer and more consistent with device_add and netdev_add when we accept
properties for the object on the top level instead.

'props' is still accepted after this patch, but marked as deprecated.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200224143008.13362-8-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06 17:21:27 +01:00
Peter Maydell
3a8273b1ab docs: Remove old texinfo sources
We can now delete the old .texi files, which we have been keeping in
the tree as a parallel set of documentation to the new rST sources.
The only remaining use of Texinfo is the autogenerated manuals
and HTML documents created from the QAPI JSON doc comments.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-33-peter.maydell@linaro.org
2020-03-06 11:06:55 +00:00
Peter Maydell
5b1d0e9249 docs: Stop building qemu-doc
Stop building the old texinfo qemu-doc; all its contents are
now available in the Sphinx-generated manuals and manpages.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-32-peter.maydell@linaro.org
2020-03-06 11:06:55 +00:00
Peter Maydell
d06118bfbd docs: Generate qemu.1 manpage with Sphinx
Generate the qemu.1 manpage using Sphinx; we do this with a new
top-level rst source file which is just the skeleton of the manpage
and which includes .rst.inc fragments where it needs to incorporate
sections from the larger HTML manuals.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-30-peter.maydell@linaro.org
2020-03-06 11:06:55 +00:00
Peter Maydell
bf87bef091 docs: Split out sections for the manpage into .rst.inc files
Sphinx doesn't have very good facilities for marking chunks
of documentation as "put this in the manpage only". So instead
we move the parts we want to put into both the HTML manuals
and the manpage into their own .rst.inc files, which we can
include from both the main manual rst files and a new toplevel
rst file that will be the skeleton of the qemu.1 manpage.

In this commit, just split out the parts of the documentation
that go in the manpage.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-29-peter.maydell@linaro.org
2020-03-06 11:06:55 +00:00
Peter Maydell
09ce5f2d6b qemu-options.hx: Fix up the autogenerated rST
This commit contains hand-written fixes for some issues with the
autogenerated rST fragments in qemu-options.hx:

 * Sphinx complains about the UTF-8 art table in the documentation of
   the -drive option.  Replace it with a proper rST format table.

 * rST does not like definition list entries with no actual
   definition, but it is possible to work around this by putting a
   single escaped literal space as the definition line.

 * The "-g widthxheight" option documentation suffers particularly
   badly from losing the distinction between italics and fixed-width
   as a result of the auto conversion, so put it back in again.

 * The script missed some places that use the |qemu_system| etc
   macros and need to be marked up as parsed-literal blocks.

 * The script autogenerated an expanded out version of the
   contents of qemu-option-trace.texi; replace it with an
   qemu-option-trace.rst.inc include.

This is sufficient that we can enable inclusion of the
option documentation from invocation.rst.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-28-peter.maydell@linaro.org
2020-03-06 11:06:55 +00:00
Peter Maydell
196afbb094 docs: Roll -prom-env and -g target-specific info into qemu-options.hx
The SPARC and PPC targets currently have a fragment of target-specific
information about the -g and -prom options which would be better placed
as part of the general documentation of those options in qemu-options.hx.
Move the relevant information to those locations.

SPARC also has a bit of text about the -M option which is out of
date and provides no useful information over the generic documentation
of that option, so just delete it.

The motivation here is again to avoid having to awkwardly include
this text into the rST version of the qemu.1 manpage.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-25-peter.maydell@linaro.org
2020-03-06 10:05:18 +00:00
Peter Maydell
44d79a6bd7 docs: Roll semihosting option information into qemu-options.hx
Currently the per-target documentation for those targets that
implement semihosting includes a bit of text that goes into both the
manual and the manpage about options specific to the target.  This
text is redundant with the earlier generic option description of the
semihosting option produced from qemu-options.hx. To avoid having
to create a lot of stub include files to include into the rST
generated qemu.1 manpage, roll target-specific bits of information
into the qemu-options.hx text, so the user doesn't have to look
in two places for this information.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-24-peter.maydell@linaro.org
2020-03-06 10:05:12 +00:00
Peter Maydell
705f48cc22 doc/scripts/hxtool.py: Strip trailing ':' from DEFHEADING/ARCHHEADING
In hxtool files, section headings defined with the DEFHEADING
and ARCHHEADING macros have a trailing ':'
  DEFHEADING(Standard options:)

This is for the benefit of the --help output. For consistency
with the rest of the rST documentation, strip any trailing ':'
when we construct headings with the Sphinx hxtool extension.
This makes the table of contents look neater.

This only affects generation of documentation from qemu-options.hx,
which we will start doing in a later commit.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-23-peter.maydell@linaro.org
2020-03-06 10:05:12 +00:00
Peter Maydell
a12e74cc52 hmp-commands-info.hx: Add rST documentation fragments
Add the rST versions of the documentation fragments.  Once we've
converted fully from Texinfo to rST we can remove the ETEXI
fragments; for the moment we need both.

Note that most of the SRST fragments are 2-space indented so that the
'info foo' documentation entries appear as a sublist under the 'info'
entry in the top level list.

Again, all we need to do to put the documentation in the Sphinx manual
is a one-line hxtool-doc invocation.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-22-peter.maydell@linaro.org
2020-03-06 10:05:12 +00:00
Peter Maydell
a6b30bcae6 hmp-commands.hx: Add rST documentation fragments
Add the rST versions of the documentation fragments.  Once we've
converted fully from Texinfo to rST we can remove the ETEXI
fragments; for the moment we need both.

Since the only consumer of the hmp-commands hxtool documentation
is the HTML manual, all we need to do for the monitor command
documentation to appear in the Sphinx system manual is add the
one line that invokes the hxtool extension on the .hx file.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-21-peter.maydell@linaro.org
2020-03-06 10:05:12 +00:00
Paolo Bonzini
324b2298fe docs/system: convert Texinfo documentation to rST
Apart from targets.rst, which was written by hand, this is an automated
conversion obtained with the following command:

  makeinfo --force -o - --docbook \
    -D 'qemu_system_x86 QEMU_SYSTEM_X86_MACRO' \
    -D 'qemu_system     QEMU_SYSTEM_MACRO' \
    $texi | pandoc -f docbook -t rst+smart | perl -e '
      $/=undef;
      $_ = <>;
      s/^-  − /-  /gm;
      s/QEMU_SYSTEM_MACRO/|qemu_system|/g;
      s/QEMU_SYSTEM_X86_MACRO/|qemu_system_x86|/g;
      s/(?=::\n\n +\|qemu)/.. parsed-literal/g;
      s/:\n\n::$/::/gm;
      print' > $rst

In addition, the following changes were made manually:

- target-i386.rst and target-mips.rst: replace CPU model documentation with
  an include directive

- monitor.rst: replace the command section with a comment

- images.rst: add toctree

- target-arm.rst: Replace use of :math: (which Sphinx complains
  about) with :sup:, and hide it behind |I2C| and |I2C| substitutions.

Content that is not @included remains exclusive to qemu-doc.texi.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-20-peter.maydell@linaro.org
Message-id: 20200226113034.6741-19-pbonzini@redhat.com
[PMM: Fixed target-arm.rst use of :math:; remove out of date
 note about images.rst from commit message; fixed expansion
 of |qemu_system_x86|; use parsed-literal in invocation.rst
 when we want to use |qemu_system_x86|; fix incorrect subsection
 level for "OS requirements" in target-i386.rst; fix incorrect
 syntax for making links to other sections of the manual]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-06 10:05:12 +00:00
Peter Maydell
41fba1618b docs/system: convert the documentation of deprecated features to rST.
We put the whole of this document into the system manual, though
technically a few parts of it apply to qemu-img or qemu-nbd which are
otherwise documented in tools/.

We only make formatting fixes, except for one use of 'appendix' which
we change to 'section' because this isn't an appendix in the Sphinx
manual.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-19-peter.maydell@linaro.org
Message-id: 20200226113034.6741-18-pbonzini@redhat.com
2020-03-06 10:05:12 +00:00
Peter Maydell
2f4325df9e docs/system: convert managed startup to rST.
Fix one typo in the process and format more option and
command names as literal text, but make no significant
changes to the content.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-18-peter.maydell@linaro.org
Message-id: 20200226113034.6741-17-pbonzini@redhat.com
2020-03-06 10:05:12 +00:00
Peter Maydell
c02c112a2c docs/system: Convert security.texi to rST format
security.texi is included from qemu-doc.texi but is not used
in the qemu.1 manpage. So we can do a straightforward conversion
of the contents, which go into the system manual.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-17-peter.maydell@linaro.org
Message-id: 20200226113034.6741-16-pbonzini@redhat.com
2020-03-06 10:05:12 +00:00
Kashyap Chamarthy
1bf84a1e2e docs/system: Convert qemu-cpu-models.texi to rST
This doc was originally written by Daniel P. Berrangé
<berrange@redhat.com>, introduced via commit[1]: 2544e9e4aa (docs: add
guidance on configuring CPU models for x86, 2018-06-27).

In this patch:

  - 1-1 conversion of Texinfo to rST, besides a couple of minor
    tweaks that are too trivial to mention.   (Thanks to Stephen
    Finucane on IRC for the suggestion to use rST "definition lists"
    instead of bullets in some places.)

    Further modifications will be done via a separate patch.

  - rST and related infra changes: manual page generation, Makefile
    fixes, clean up references to qemu-cpu-models.texi, update year in
    the copyright notice, etc.

[1] https://git.qemu.org/?p=qemu.git;a=commit;h=2544e9e4aa

As part of the conversion, we use a more generic 'author' attribution
for the manpage than we previously had, as agreed with the original
author Dan Berrange.

Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-16-peter.maydell@linaro.org
Message-id: 20200226113034.6741-15-pbonzini@redhat.com
[Move macros to defs.rst.inc, split in x86 and MIPS parts,
 make qemu-cpu-models.rst a standalone document. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[PMM: Move defs.rst.inc setup to its own commit;
 fix minor issues with MAINTAINERS file updates;
 drop copyright date change; keep capitalization of
 "QEMU Project developers" consistent with other uses;
 minor Makefile fixups]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-06 10:05:12 +00:00
Peter Maydell
de1572ca49 docs: Create defs.rst.inc as a place to define substitutions
Rather than accumulating generally useful rST substitution
definitions in individual rST files, create a defs.rst.inc where we
can define these.  To start with it has the |qemu_system| definition
from qemu-block-drivers.rst.

Add a comment noting a pitfall where putting literal markup in the
definition of |qemu_system| makes it misrender manpage output; this
means the point-of-use must handle the literal markup (which is
almost always done by having it inside a parsed-literal block).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-15-peter.maydell@linaro.org
2020-03-06 10:04:58 +00:00
Paolo Bonzini
bccb135e54 docs/system: put qemu-block-drivers body in an included file
This removes the "only" directives, and lets us use the conventional
"DESCRIPTION" section in the manpage.

This temporarily drops the qemu-block-drivers documentation
from the system manual, but it will be put back (in the
right place in the toctree) in a later commit.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-14-peter.maydell@linaro.org
Message-id: 20200226113034.6741-14-pbonzini@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: Added commit message note about temporarily losing
qemu-block-drivers from the system manual]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-06 10:04:58 +00:00
Paolo Bonzini
c9a38ce6ab qemu-doc: remove indices other than findex
These indices are not well-maintained, and pandoc also chokes on the
directives.  Just nuke them.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-13-peter.maydell@linaro.org
Message-id: 20200226113034.6741-13-pbonzini@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-06 10:04:58 +00:00
Paolo Bonzini
abcd92db6a qemu-doc: move included files to docs/system
Since qemu-doc.texi is mostly including files from docs/system,
move the existing include files there for consistency.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-12-peter.maydell@linaro.org
Message-id: 20200226113034.6741-12-pbonzini@redhat.com
[PMM: update MAINTAINERS line for qemu-option-trace.texi]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-06 10:04:57 +00:00
Paolo Bonzini
2147106172 qemu-doc: move qemu-tech.texi into main section
The only remaining content in qemu-tech.texi is a few paragraphs
about managed start up options.  Move them in the main section
about full system emulation.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-11-peter.maydell@linaro.org
Message-id: 20200226113034.6741-11-pbonzini@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-06 10:04:57 +00:00
Paolo Bonzini
9d0ba2cd94 qemu-doc: split target sections to separate files
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-9-peter.maydell@linaro.org
Message-id: 20200226113034.6741-9-pbonzini@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-06 10:04:57 +00:00
Paolo Bonzini
ce9fc5834c qemu-doc: extract common system emulator documentation from the PC section
Move the section on PC peripherals together with other targets.
While some x86-specific information remains in the main system
emulation chapter, it can be tackled more easily a section at a
time.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-7-peter.maydell@linaro.org
Message-id: 20200226113034.6741-7-pbonzini@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-06 10:04:57 +00:00
Paolo Bonzini
fdeccf932d qemu-doc: split qemu-doc.texi in multiple files
In order to facilitate the reorganization of qemu-doc.texi content,
as well as the conversion to rST/Sphinx, split it in multiple .texi
files that are included from docs/system.

The "other devices" section is renamed to ivshmem and placed last.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-6-peter.maydell@linaro.org
Message-id: 20200226113034.6741-6-pbonzini@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-06 10:04:57 +00:00
Paolo Bonzini
5600d275d5 qemu-doc: split CPU models doc between MIPS and x86 parts
The MIPS CPU models end up in the middle of the PC documentation.  Move
them to a separate file so that they can be placed in the right section.

The man page still includes both x86 and MIPS content.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-5-peter.maydell@linaro.org
Message-id: 20200226113034.6741-5-pbonzini@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-06 10:04:57 +00:00
Paolo Bonzini
091479301f qemu-doc: convert user-mode emulation to a separate Sphinx manual
The final addition to the set of QEMU manuals is the user-mode emulation
manual, which right now is included in qemu-doc.texi.  Extract it and
convert it to rST, so that qemu-doc.texi covers only full system emulation.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200228153619.9906-2-peter.maydell@linaro.org
Message-id: 20200226113034.6741-2-pbonzini@redhat.com
[PMM: Fix makefile conflicts; add user manual to
 index.rst and index.html.in; don't specify empty man_pages
 list; fixed a few comments to say 'user' rather than 'system']
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-06 10:04:57 +00:00
Eric Auger
fcaa204194 docs/specs/tpm: Document TPM_TIS sysbus device for ARM
Update the documentation with recent changes related to the
sysbus TPM_TIS device addition and add the command line
to be used with arm VIRT.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Message-id: 20200305165149.618-8-eric.auger@redhat.com
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2020-03-05 12:18:25 -05:00
Lukas Straub
90dfe59b33 colo: Update Documentation for continuous replication
Document the qemu command-line and qmp commands for continuous replication

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-03-03 18:04:47 +08:00
Peter Maydell
430f63e250 Includes a headers update against 5.6-current.
- add missing vcpu reset functionality
 - rstfy some s390 documentation
 - fixes and enhancements
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Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20200227' into staging

Includes a headers update against 5.6-current.
- add missing vcpu reset functionality
- rstfy some s390 documentation
- fixes and enhancements

# gpg: Signature made Thu 27 Feb 2020 11:50:08 GMT
# gpg:                using RSA key C3D0D66DC3624FF6A8C018CEDECF6B93C6F02FAF
# gpg:                issuer "cohuck@redhat.com"
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [marginal]
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>" [marginal]
# gpg:                 aka "Cornelia Huck <cohuck@redhat.com>" [marginal]
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* remotes/cohuck/tags/s390x-20200227:
  s390x: Rename and use constants for short PSW address and mask
  docs: rstfy vfio-ap documentation
  docs: rstfy s390 dasd ipl documentation
  s390/sclp: improve special wait psw logic
  s390x: Add missing vcpu reset functions
  linux-headers: update
  target/s390x/translate: Fix RNSBG instruction

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-02-27 19:56:37 +00:00
Peter Maydell
8b6b68e05b virtio, pc: fixes, features
New virtio iommu.
 Unrealize memory leaks.
 In-band kick/call support.
 Bugfixes, documentation all over the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, pc: fixes, features

New virtio iommu.
Unrealize memory leaks.
In-band kick/call support.
Bugfixes, documentation all over the place.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Thu 27 Feb 2020 08:46:33 GMT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (30 commits)
  Fixed assert in vhost_user_set_mem_table_postcopy
  vhost-user: only set slave channel for first vq
  acpi: cpuhp: document CPHP_GET_CPU_ID_CMD command
  libvhost-user: implement in-band notifications
  docs: vhost-user: add in-band kick/call messages
  libvhost-user: handle NOFD flag in call/kick/err better
  libvhost-user-glib: use g_main_context_get_thread_default()
  libvhost-user-glib: fix VugDev main fd cleanup
  libvhost-user: implement VHOST_USER_PROTOCOL_F_REPLY_ACK
  MAINTAINERS: add virtio-iommu related files
  hw/arm/virt: Add the virtio-iommu device tree mappings
  virtio-iommu-pci: Add virtio iommu pci support
  virtio-iommu: Support migration
  virtio-iommu: Implement fault reporting
  virtio-iommu: Implement translate
  virtio-iommu: Implement map/unmap
  virtio-iommu: Implement attach/detach command
  virtio-iommu: Decode the command payload
  virtio-iommu: Add skeleton
  virtio: gracefully handle invalid region caches
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-02-27 19:15:15 +00:00
Igor Mammedov
fd9b0830b0 acpi: cpuhp: document CPHP_GET_CPU_ID_CMD command
Commit 3a61c8db9d introduced CPHP_GET_CPU_ID_CMD command but
did not sufficiently describe it. Fix it by adding missing command
documentation.

Fixes: 3a61c8db9d ("acpi: cpuhp: add CPHP_GET_CPU_ID_CMD command")
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <1580306781-228371-1-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-02-27 03:46:10 -05:00
Johannes Berg
3348e7e34f docs: vhost-user: add in-band kick/call messages
For good reason, vhost-user is currently built asynchronously, that
way better performance can be obtained. However, for certain use
cases such as simulation, this is problematic.

Consider an event-based simulation in which both the device and CPU
have scheduled according to a simulation "calendar". Now, consider
the CPU sending I/O to the device, over a vring in the vhost-user
protocol. In this case, the CPU must wait for the vring interrupt
to have been processed by the device, so that the device is able to
put an entry onto the simulation calendar to obtain time to handle
the interrupt. Note that this doesn't mean the I/O is actually done
at this time, it just means that the handling of it is scheduled
before the CPU can continue running.

This cannot be done with the asynchronous eventfd based vring kick
and call design.

Extend the protocol slightly, so that a message can be used for kick
and call instead, if VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS is
negotiated. This in itself doesn't guarantee synchronisation, but both
sides can also negotiate VHOST_USER_PROTOCOL_F_REPLY_ACK and thus get
a reply to this message by setting the need_reply flag, and ensure
synchronisation this way.

To really use it in both directions, VHOST_USER_PROTOCOL_F_SLAVE_REQ
is also needed.

Since it is used for simulation purposes and too many messages on
the socket can lock up the virtual machine, document that this should
only be used together with the mentioned features.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Message-Id: <20200123081708.7817-6-johannes@sipsolutions.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-02-27 03:46:10 -05:00
Cornelia Huck
8f4335242a docs: rstfy vfio-ap documentation
Move to system/, as this is mostly about configuring vfio-ap.

Message-Id: <20200213162942.14177-3-cohuck@redhat.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-02-26 18:57:07 +01:00
Cornelia Huck
cc3d15a5ea docs: rstfy s390 dasd ipl documentation
While at it, also fix the numbering in 'What QEMU does'.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200213162942.14177-2-cohuck@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-02-26 18:57:07 +01:00
Alex Bennée
9675a9c6e8 docs/devel: document query handle lifetimes
I forgot to document the lifetime of handles in the developer
documentation. Do so now.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Robert Foley <robert.foley@linaro.org>
Message-Id: <20200225124710.14152-11-alex.bennee@linaro.org>
2020-02-25 20:20:23 +00:00
Peter Maydell
a08b4a9fe6 docs: Move tools documentation to tools manual
Move the following tools documentation files to the new tools manual:

 docs/interop/qemu-img.rst
 docs/interop/qemu-nbd.rst
 docs/interop/virtfs-proxy-helper.rst
 docs/interop/qemu-trace-stap.rst
 docs/interop/virtiofsd.rst

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20200217155415.30949-4-peter.maydell@linaro.org
2020-02-25 10:48:06 +00:00
Peter Maydell
bb43ee6c4f docs: Move qemu-option-trace.rst.inc to docs/
The qemu-option-trace.rst.inc file contains a rST documentation
fragment which describes trace options common to qemu-nbd and
qemu-img.  We put this file into interop/, but we'd like to move the
qemu-nbd and qemu-img files into the tools/ manual.  We could move
the .rst.inc file along with them, but we're eventually going to want
to use it for the main QEMU binary options documentation too, and
that will be in system/.  So move qemu-option-trace.rst.inc to the
top-level docs/ directory, where all these files can include it via

   .. include:: ../qemu-option-trace.rst.inc

This does have the slight downside that we now need to explicitly
tell Make which manuals use this file rather than relying on
a wildcard for all .rst.inc in the manual.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20200217155415.30949-3-peter.maydell@linaro.org
2020-02-25 10:48:05 +00:00
Peter Maydell
65c3542b1f docs: Create new 'tools' manual
Some of the documentation for QEMU "tools" which are standalone
binaries like qemu-img is an awkward fit in our current 5-manual
split. We've put it into "interop", but they're not really
about interoperability.

Create a new top level manual "tools" which will be a better
home for this documentation. This commit creates an empty
initial manual; we will move the relevant documentation
files in a subsequent commit.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20200217155415.30949-2-peter.maydell@linaro.org
2020-02-25 10:48:04 +00:00
Alexander Bulekov
e5c59355ae fuzz: add documentation to docs/devel/
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-id: 20200220041118.23264-23-alxndr@bu.edu
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-02-22 08:26:48 +00:00
David Edmondson
168468fe19 qemu-img: Add --target-is-zero to convert
In many cases the target of a convert operation is a newly provisioned
target that the user knows is blank (reads as zero). In this situation
there is no requirement for qemu-img to wastefully zero out the entire
device.

Add a new option, --target-is-zero, allowing the user to indicate that
an existing target device will return zeros for all reads.

Signed-off-by: David Edmondson <david.edmondson@oracle.com>
Message-Id: <20200205110248.2009589-2-david.edmondson@oracle.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-02-20 16:43:42 +01:00
Vladimir Sementsov-Ogievskiy
66fcbca5a7 docs: qcow2: introduce compression type feature
The patch adds a new additional field to the qcow2 header: compression_type,
which specifies compression type. If field is absent or zero, default
compression type is set: ZLIB, which corresponds to current behavior.

New compression type (ZSTD) is to be added in further commit.

Suggested-by: Denis Plotnikov <dplotnikov@virtuozzo.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200131142219.3264-3-vsementsov@virtuozzo.com>
[mreitz: s/Bits 3-63:  Reserved/Bits 4-63:  Reserved/]
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-02-20 16:42:52 +01:00
Vladimir Sementsov-Ogievskiy
3ae3fcfae5 docs: improve qcow2 spec about extending image header
Make it more obvious how to add new fields to the version 3 header and
how to interpret them.

The specification is adjusted so that for new defined optional fields:

1. Software may support some of these optional fields and ignore the
   others, which means that features may be backported to downstream
   Qemu independently.
2. If we want to add incompatible field (or a field, for which some of
   its values would be incompatible), it must be accompanied by
   incompatible feature bit.

Also the concept of "default is zero" is clarified, as it's strange to
say that the value of the field is assumed to be zero for the software
version which don't know about the field at all and don't know how to
treat it be it zero or not.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200131142219.3264-2-vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
[mreitz: s/some its/some of its/]
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-02-20 16:20:14 +01:00
Peter Maydell
758b617af8 configure: Check that sphinx-build is using Python 3
Currently configure's has_sphinx_build() check simply runs a dummy
sphinx-build and either passes or fails.  This means that "no
sphinx-build at all" and "sphinx-build exists but is too old" are
both reported the same way.

Further, we want to assume that all the Python we write is running
with at least Python 3.5; configure checks that for our scripts, but
Sphinx extensions run with whatever Python version sphinx-build
itself is using.

Add a check to our conf.py which makes sphinx-build fail if it would
be running our extensions with an old Python, and handle this
in configure so we can report failure helpfully to the user.
This will mean that configure --enable-docs will fail like this
if the sphinx-build provided is not suitable:

Warning: sphinx-build exists but it is either too old or uses too old a Python version

ERROR: User requested feature docs
       configure was not able to find it.
       Install texinfo, Perl/perl-podlators and a Python 3 version of python-sphinx

(As usual, the default is to simply not build the docs, as we would
if sphinx-build wasn't present at all.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20200213175647.17628-3-peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-02-15 11:41:49 +01:00
Stefan Hajnoczi
6a7e2bbee5 docs: add virtiofsd(1) man page
Document the virtiofsd(1) program and its command-line options.  This
man page is a rST conversion of the original texi documentation that I
wrote.

Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-02-10 17:25:52 +00:00
Philippe Mathieu-Daudé
fa3236a970 docs/arm-cpu-features: Make kvm-no-adjvtime comment clearer
The bold text sounds like 'knock knock'. Only bolding the
second 'not' makes it easier to read.

Fixes: dea101a1ae
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20200206225148.23923-1-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-02-07 14:04:28 +00:00
Peter Maydell
5b7686f3fa nbd patches for 2020-02-06
- Allow setting NBD description from QMP for parity with qemu-nbd
 - Remove deprecated 'qemu-nbd --partition'
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Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2020-02-06' into staging

nbd patches for 2020-02-06

- Allow setting NBD description from QMP for parity with qemu-nbd
- Remove deprecated 'qemu-nbd --partition'

# gpg: Signature made Thu 06 Feb 2020 12:50:46 GMT
# gpg:                using RSA key 71C2CC22B1C4602927D2F3AAA7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg:                 aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-nbd-2020-02-06:
  qemu-nbd: Removed deprecated --partition option
  docs: Fix typo in qemu-nbd -P replacement
  nbd: Allow description when creating NBD blockdev

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-02-06 18:59:12 +00:00
Julia Suvorova
890fb1f6b3 qemu-img: Place the '-i aio' option in alphabetical order
The '-i AIO' option was accidentally placed after '-n' and '-t'. Move it
after '--flush-interval'.

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20200205163008.204493-1-jusual@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-02-06 11:09:36 +01:00
Eric Blake
0bc16997f5 qemu-nbd: Removed deprecated --partition option
The option was deprecated in 4.0.0 (commit 0ae2d546); it's now been
long enough with no complaints to follow through with that process.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200123164650.1741798-3-eblake@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-05 17:29:49 -06:00
Thomas Huth
316082b119 docs/devel: Fix qtest paths and info about check-block in testing.rst
The qtests have recently been moved to a separate subdirectory, so
the paths that are mentioned in the documentation have to be adjusted
accordingly. And some of the iotests are now always run as part of
"make check", so this information has to be adjusted here, too.

Message-Id: <20200122134511.23806-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-02-04 09:00:57 +01:00
Peter Maydell
78813586b0 virtfs-proxy-helper: Convert documentation to rST
The virtfs-proxy-helper documentation is currently in
fsdev/qemu-trace-stap.texi in Texinfo format, which we
present to the user as:
 * a virtfs-proxy-helper manpage
 * but not (unusually for QEMU) part of the HTML docs

Convert the documentation to rST format that lives in
the docs/ subdirectory, and present it to the user as:
 * a virtfs-proxy-helper manpage
 * part of the interop/ Sphinx manual

There are minor formatting changes to suit Sphinx, but no
content changes. In particular I've split the -u and -g
options into each having their own description text.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Greg Kurz <groug@kaod.org>
Message-id: 20200124162606.8787-9-peter.maydell@linaro.org
2020-02-03 11:02:23 +00:00
Peter Maydell
605ffebb2e scripts/qemu-trace-stap: Convert documentation to rST
The qemu-trace-stap documentation is currently in
scripts/qemu-trace-stap.texi in Texinfo format, which we
present to the user as:
 * a qemu-trace-stap manpage
 * but not (unusually for QEMU) part of the HTML docs

Convert the documentation to rST format that lives in
the docs/ subdirectory, and present it to the user as:
 * a qemu-trace-stap manpage
 * part of the interop/ Sphinx manual

There are minor formatting changes to suit Sphinx, but no
content changes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200124162606.8787-8-peter.maydell@linaro.org
2020-02-03 11:02:23 +00:00
Peter Maydell
e13c59fa44 qemu-img: Convert invocation documentation to rST
The qemu-img documentation is currently in qemu-nbd.texi in Texinfo
format, which we present to the user as:
 * a qemu-img manpage
 * a section of the main qemu-doc HTML documentation

Convert the documentation to rST format, and present it to the user as:
 * a qemu-img manpage
 * part of the interop/ Sphinx manual

The qemu-img rST document uses the new hxtool extension
to handle pulling rST fragments out of qemu-img-cmds.hx.

The documentation of the various options and commands is rather
muddled, with some options being described inside the relevant
command description and some in a more general section near the start
of the manual.  All the command synopses are replicated in the .hx
file and then again in the manual.  A lot of text is also duplicated
in the qemu-img.c code for the help text.  I have not attempted to
deal with any of this, but have simply transposed the existing
structure into rST.

As usual, there are some minor formatting changes but no
textual changes, except that as with one or two other conversions
I have dropped the 'see also' section since it's not very
informative and looks odd in the HTML.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200124162606.8787-6-peter.maydell@linaro.org
2020-02-03 11:02:22 +00:00
Peter Maydell
6803d6e9a7 docs/sphinx: Add new hxtool Sphinx extension
Some of our documentation includes sections which are created
by assembling fragments of texinfo from a .hx source file into
a .texi file, which is then included from qemu-doc.texi or
qemu-img.texi.

For Sphinx, rather than creating a file to include, the most natural
way to handle this is to have a small custom Sphinx extension which
reads the .hx file and process it.  So instead of:
 * makefile produces foo.texi from foo.hx
 * qemu-doc.texi says '@include foo.texi'
we have:
 * qemu-doc.rst says 'hxtool-doc:: foo.hx'
 * the Sphinx extension for hxtool has code that runs to handle that
   Sphinx directive which reads the .hx file and emits the appropriate
   documentation contents

This is pretty much the same way the kerneldoc extension works right
now. It also has the advantage that it should work for third-party
services like readthedocs that expect to build the docs directly with
sphinx rather than by invoking our makefiles.

In this commit we implement the hxtool extension.

Note that syntax errors in the rST fragments will be correctly
reported to the user with the filename and line number within the
hx file.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200124162606.8787-4-peter.maydell@linaro.org
2020-02-03 10:46:32 +00:00
Marc-André Lureau
6e8a3ff6ed docs/specs/tpm: reST-ify TPM documentation
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Message-Id: <20200121152935.649898-7-stefanb@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-02-02 14:07:57 +11:00
Stefan Berger
3676bc69b3 tpm_spapr: Support TPM for ppc64 using CRQ based interface
Implement support for TPM on ppc64 by implementing the vTPM CRQ interface
as a frontend. It can use the tpm_emulator driver backend with the external
swtpm.

The Linux vTPM driver for ppc64 works with this emulation.

This TPM emulator also handles the TPM 2 case.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200121152935.649898-4-stefanb@linux.ibm.com>
[dwg: Use device_class_set_props(), tweak Kconfig]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-02-02 14:07:57 +11:00
Thomas Huth
b2ce76a073 hw/ppc/prep: Remove the deprecated "prep" machine and the OpenHackware BIOS
It's been deprecated since QEMU v3.1. The 40p machine should be
used nowadays instead.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200114114617.28854-1-thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-02-02 14:07:57 +11:00
Peter Maydell
28db64fce5 Pull request
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Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging

Pull request

# gpg: Signature made Thu 30 Jan 2020 21:38:06 GMT
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/tracing-pull-request:
  qemu_set_log_filename: filename argument may be NULL
  hw/display/qxl.c: Use trace_event_get_state_backends()
  memory.c: Use trace_event_get_state_backends()
  docs/devel/tracing.txt: Recommend only trace_event_get_state_backends()
  Makefile: Keep trace-events-subdirs ordered

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-31 17:37:00 +00:00
Peter Maydell
1aa6430dbe docs/devel/tracing.txt: Recommend only trace_event_get_state_backends()
Instead of recommending checking the TRACE_FOO_ENABLED macro to
skip expensive computations needed only for tracing, recommend
only using trace_event_get_state_backends(). This works for both
compile-time and run-time disabling of events, and has no extra
performance impact if the event is compile-time disabled.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200120151142.18954-2-peter.maydell@linaro.org
Message-Id: <20200120151142.18954-2-peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-01-30 21:33:50 +00:00
Aarushi Mehta
7680274da1 qemu-nbd: adds option for aio engines
Signed-off-by: Aarushi Mehta <mehta.aaru20@gmail.com>
Acked-by: Eric Blake <eblake@redhat.com>
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20200120141858.587874-14-stefanha@redhat.com
Message-Id: <20200120141858.587874-14-stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-01-30 21:01:38 +00:00
Andrew Jones
dea101a1ae target/arm/cpu: Add the kvm-no-adjvtime CPU property
kvm-no-adjvtime is a KVM specific CPU property and a first of its
kind. To accommodate it we also add kvm_arm_add_vcpu_properties()
and a KVM specific CPU properties description to the CPU features
document.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 20200120101023.16030-7-drjones@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-30 16:02:06 +00:00
Damien Hedde
d66cc84cd1 docs/devel/reset.rst: add doc about Resettable interface
Signed-off-by: Damien Hedde <damien.hedde@greensocs.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200123132823.1117486-10-damien.hedde@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-30 16:02:05 +00:00
Cornelia Huck
174b72aa38 docs/devel: fix stable process doc formatting
Enumeration of stable criteria needs proper bullet points.

Message-Id: <20200113103023.31255-1-cohuck@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-01-27 12:13:09 +01:00
Peter Maydell
760df0d121 * Register qdev properties as class properties (Marc-André)
* Cleanups (Philippe)
 * virtio-scsi fix (Pan Nengyuan)
 * Tweak Skylake-v3 model id (Kashyap)
 * x86 UCODE_REV support and nested live migration fix (myself)
 * Advisory mode for pvpanic (Zhenwei)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Register qdev properties as class properties (Marc-André)
* Cleanups (Philippe)
* virtio-scsi fix (Pan Nengyuan)
* Tweak Skylake-v3 model id (Kashyap)
* x86 UCODE_REV support and nested live migration fix (myself)
* Advisory mode for pvpanic (Zhenwei)

# gpg: Signature made Fri 24 Jan 2020 20:16:23 GMT
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (58 commits)
  build-sys: clean up flags included in the linker command line
  target/i386: Add the 'model-id' for Skylake -v3 CPU models
  qdev: use object_property_help()
  qapi/qmp: add ObjectPropertyInfo.default-value
  qom: introduce object_property_help()
  qom: simplify qmp_device_list_properties()
  vl: print default value in object help
  qdev: register properties as class properties
  qdev: move instance properties to class properties
  qdev: rename DeviceClass.props
  qdev: set properties with device_class_set_props()
  object: return self in object_ref()
  object: release all props
  object: add object_class_property_add_link()
  object: express const link with link property
  object: add direct link flag
  object: rename link "child" to "target"
  object: check strong flag with &
  object: do not free class properties
  object: add object_property_set_default
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-27 09:44:04 +00:00
zhenwei pi
7dc58deea7 pvpanic: implement crashloaded event handling
Handle bit 1 write, then post event to monitor.

Suggested by Paolo, declear a new event, using GUEST_PANICKED could
cause upper layers to react by shutting down or rebooting the guest.

In advance for extention, add GuestPanicInformation in event message.

Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20200114023102.612548-3-pizhenwei@bytedance.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:07 +01:00
zhenwei pi
600d7b47e8 pvpanic: introduce crashloaded for pvpanic
Add bit 1 for pvpanic. This bit means that guest hits a panic, but
guest wants to handle error by itself. Typical case: Linux guest runs
kdump in panic. It will help us to separate the abnormal reboot from
normal operation.

Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20200114023102.612548-2-pizhenwei@bytedance.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:07 +01:00
Peter Maydell
a43efa34c7 virtiofsd first pull v2
Import our virtiofsd.
 This pulls in the daemon to drive a file system connected to the
 existing qemu virtiofsd device.
 It's derived from upstream libfuse with lots of changes (and a lot
 trimmed out).
 The daemon lives in the newly created qemu/tools/virtiofsd
 
 Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
 
 v2
   drop the docs while we discuss where they should live
   and we need to redo the manpage in anything but texi
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Merge remote-tracking branch 'remotes/dgilbert-gitlab/tags/pull-virtiofs-20200123b' into staging

virtiofsd first pull v2

Import our virtiofsd.
This pulls in the daemon to drive a file system connected to the
existing qemu virtiofsd device.
It's derived from upstream libfuse with lots of changes (and a lot
trimmed out).
The daemon lives in the newly created qemu/tools/virtiofsd

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

v2
  drop the docs while we discuss where they should live
  and we need to redo the manpage in anything but texi

# gpg: Signature made Thu 23 Jan 2020 16:45:18 GMT
# gpg:                using RSA key 45F5C71B4A0CB7FB977A9FA90516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert-gitlab/tags/pull-virtiofs-20200123b: (108 commits)
  virtiofsd: add some options to the help message
  virtiofsd: stop all queue threads on exit in virtio_loop()
  virtiofsd/passthrough_ll: Pass errno to fuse_reply_err()
  virtiofsd: Convert lo_destroy to take the lo->mutex lock itself
  virtiofsd: add --thread-pool-size=NUM option
  virtiofsd: fix lo_destroy() resource leaks
  virtiofsd: prevent FUSE_INIT/FUSE_DESTROY races
  virtiofsd: process requests in a thread pool
  virtiofsd: use fuse_buf_writev to replace fuse_buf_write for better performance
  virtiofsd: add definition of fuse_buf_writev()
  virtiofsd: passthrough_ll: Use cache_readdir for directory open
  virtiofsd: Fix data corruption with O_APPEND write in writeback mode
  virtiofsd: Reset O_DIRECT flag during file open
  virtiofsd: convert more fprintf and perror to use fuse log infra
  virtiofsd: do not always set FUSE_FLOCK_LOCKS
  virtiofsd: introduce inode refcount to prevent use-after-free
  virtiofsd: passthrough_ll: fix refcounting on remove/rename
  libvhost-user: Fix some memtable remap cases
  virtiofsd: rename inode->refcount to inode->nlookup
  virtiofsd: prevent races with lo_dirp_put()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-24 09:59:11 +00:00
Stefan Hajnoczi
45018fbb0a virtiofsd: add --print-capabilities option
Add the --print-capabilities option as per vhost-user.rst "Backend
programs conventions".  Currently there are no advertised features.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23 16:41:36 +00:00
Peter Maydell
acab923dce qemu-block-drivers: Convert to rST
The qemu-block-drivers documentation is currently in
docs/qemu-block-drivers.texi in Texinfo format, which we present
to the user as:
 * a qemu-block-drivers manpage
 * a section of the main qemu-doc HTML documentation

Convert the documentation to rST format, and present it to
the user as:
 * a qemu-block-drivers manpage
 * part of the system/ Sphinx manual

This follows the same pattern we've done for qemu-ga and qemu-nbd.

We have to drop a cross-reference from the documentation of the
-cdrom option back to the qemu-block-drivers documentation, since
they're no longer within the same texinfo document.

As noted in a comment, the manpage output is slightly compromised
due to limitations in Sphinx. In an ideal world, the HTML output
would have the various headings like 'Disk image file formats'
as top-level section headings (which then appear in the overall
system manual's table-of-contents), and it would not have the
section headings which make sense only for the manpage like
'synopsis', 'description', and 'see also'. Unfortunately, the
mechanism Sphinx provides for restricting pieces of documentation
is limited to the point of being flawed: the 'only::' directive
is implemented as a filter that is applied at a very late stage
in the document processing pipeline, rather than as an early
equivalent of an #ifdef. This means that Sphinx's process of
identifying which section heading markup styles are which levels
of heading gets confused if the 'only::' directive contains
section headings which would affect the heading-level of a
later heading. I have opted to prioritise making the HTML format
look better, with the compromise being that in the manpage
the 'Disk image file formats' &c headings are top-level headings
rather than being sub-headings under the traditional 'Description'
top-level section title.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20200116141511.16849-4-peter.maydell@linaro.org
2020-01-23 15:34:04 +00:00
Peter Maydell
0928523a12 docs: Create stub system manual
We want a user-facing manual which contains system emulation
documentation. Create an empty one which we can populate.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20200116141511.16849-3-peter.maydell@linaro.org
2020-01-23 15:22:40 +00:00
Peter Maydell
87c0868f46 qemu-nbd: Convert invocation documentation to rST
The qemu-nbd documentation is currently in qemu-nbd.texi in Texinfo
format, which we present to the user as:
 * a qemu-nbd manpage
 * a section of the main qemu-doc HTML documentation

Convert the documentation to rST format, and present it to the user as:
 * a qemu-nbd manpage
 * part of the interop/ Sphinx manual

This follows the same pattern as commit 27a296fce9 did for the
qemu-ga manpage.

All the content of the old manpage is retained, except that I have
dropped the "This is free software; see the source for copying
conditions.  There is NO warranty..." text that was in the old AUTHOR
section; Sphinx's manpage builder doesn't expect that much text in
the AUTHOR section, and since none of our other manpages have it it
seems easiest to delete it rather than try to figure out where else
in the manpage to put it.

The only other textual change is that I have had to give the
--nocache option its own description ("Equivalent to --cache=none")
because Sphinx doesn't have an equivalent of using item/itemx
to share a description between two options.

Some minor aspects of the formatting have changed, to suit what is
easiest for Sphinx to output. (The most notable is that Sphinx
option section option syntax doesn't support '--option foo=bar'
with bar underlined rather than bold, so we have to switch to
'--option foo=BAR' instead.)

The contents of qemu-option-trace.texi are now duplicated in
docs/interop/qemu-option-trace.rst.inc, until such time as we complete
the conversion of the other files which use it; since it has had only
3 changes in 3 years, this shouldn't be too awkward a burden.
(We use .rst.inc because if this file fragment has a .rst extension
then Sphinx complains about not seeing it in a toctree.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20200116141511.16849-2-peter.maydell@linaro.org
2020-01-23 15:22:39 +00:00
Igor Mammedov
3a61c8db9d acpi: cpuhp: add CPHP_GET_CPU_ID_CMD command
Firmware can enumerate present at boot APs by broadcasting wakeup IPI,
so that woken up secondary CPUs could register them-selves.
However in CPU hotplug case, it would need to know architecture
specific CPU IDs for possible and hotplugged CPUs so it could
prepare environment for and wake hotplugged AP.

Reuse and extend existing CPU hotplug interface to return architecture
specific ID for currently selected CPU in 2 registers:
 - lower 32 bits in ACPI_CPU_CMD_DATA_OFFSET_RW
 - upper 32 bits in ACPI_CPU_CMD_DATA2_OFFSET_R

On x86, firmware will use CPHP_GET_CPU_ID_CMD for fetching the APIC ID
when handling hotplug SMI.

Later, CPHP_GET_CPU_ID_CMD will be used on ARM to retrieve MPIDR,
which serves the similar to APIC ID purpose.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1575896942-331151-10-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov
ae340aa3d2 acpi: cpuhp: spec: add typical usecases
Document work-flows for
  * enabling/detecting modern CPU hotplug interface
  * finding a CPU with pending 'insert/remove' event
  * enumerating present and possible CPUs

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1575896942-331151-9-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov
e6d0c3ce68 acpi: cpuhp: introduce 'Command data 2' field
No functional change in practice, patch only aims to properly
document (in spec and code) intended usage of the reserved space.

The new field is to be used for 2 purposes:
  - detection of modern CPU hotplug interface using
    CPHP_GET_NEXT_CPU_WITH_EVENT_CMD command.
    procedure will be described in follow up patch:
      "acpi: cpuhp: spec: add typical usecases"
  - for returning upper 32 bits of architecture specific CPU ID,
    for new CPHP_GET_CPU_ID_CMD command added by follow up patch:
      "acpi: cpuhp: add CPHP_GET_CPU_ID_CMD command"

Change is backward compatible with 4.2 and older machines, as field was
unconditionally reserved and always returned 0x0 if modern CPU hotplug
interface was enabled.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1575896942-331151-8-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov
5b8e5363fa acpi: cpuhp: spec: clarify store into 'Command data' when 'Command field' == 0
Write section of 'Command data' register should describe what happens
when it's written into. Correct description in case the last stored
'Command field' value is equal to 0, to reflect that currently it's not
supported.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <1575896942-331151-7-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov
1c1d43bf01 acpi: cpuhp: spec: fix 'Command data' description
Correct returned value description in case 'Command field' == 0x0,
it's not PXM but CPU selector value with pending event

In addition describe 0 blanket value in case of not supported
'Command field' value.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <1575896942-331151-6-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov
1d7a52835d acpi: cpuhp: spec: clarify 'CPU selector' register usage and endianness
* Move reserved registers to the top of the section, so reader would be
  aware of effects when reading registers description.
* State registers endianness explicitly at the beginning of the section
* Describe registers behavior in case of 'CPU selector' register contains
  value that doesn't point to a possible CPU.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <1575896942-331151-5-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-22 00:23:07 -05:00
Peter Maydell
cbf01142b2 Add cpu_{ld,st}*_mmuidx_ra
Remove MMU_MODE*_SUFFIX
 Move tcg headers under include/
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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20200115' into staging

Add cpu_{ld,st}*_mmuidx_ra
Remove MMU_MODE*_SUFFIX
Move tcg headers under include/

# gpg: Signature made Thu 16 Jan 2020 01:36:41 GMT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20200115: (34 commits)
  MAINTAINERS: Replace Claudio Fontana for tcg/aarch64
  configure: Remove tcg/ from the preprocessor include search list
  tcg: Move TCG headers to include/tcg/
  tcg: Search includes in the parent source directory
  tcg: Search includes from the project root source directory
  cputlb: Expand cpu_ldst_template.h in cputlb.c
  cputlb: Remove support for MMU_MODE*_SUFFIX
  target/ppc: Use cpu_*_mmuidx_ra instead of MMU_MODE*_SUFFIX
  target/s390x: Use cpu_*_mmuidx_ra instead of MMU_MODE*_SUFFIX
  target/mips: Use cpu_*_mmuidx_ra instead of MMU_MODE*_SUFFIX
  target/m68k: Use cpu_*_mmuidx_ra instead of MMU_MODE{0,1}_SUFFIX
  target/xtensa: Remove MMU_MODE{0,1,2,3}_SUFFIX
  target/unicore32: Remove MMU_MODE{0,1}_SUFFIX
  target/sh4: Remove MMU_MODE{0,1}_SUFFIX
  target/microblaze: Remove MMU_MODE{0,1,2}_SUFFIX
  target/i386: Remove MMU_MODE{0,1,2}_SUFFIX
  target/cris: Remove MMU_MODE{0,1}_SUFFIX
  target/alpha: Remove MMU_MODE{0,1}_SUFFIX
  target/nios2: Remove MMU_MODE{0,1}_SUFFIX
  cputlb: Expand cpu_ldst_useronly_template.h in user-exec.c
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-17 12:13:17 +00:00
Richard Henderson
f4e1bae259 cputlb: Provide cpu_(ld,st}*_mmuidx_ra for user-only
This finishes the new interface began with the previous patch.
Document the interface and deprecate MMU_MODE<N>_SUFFIX.

Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-01-15 15:13:10 -10:00
Richard Henderson
fc4120a378 cputlb: Rename helper_ret_ld*_cmmu to cpu_ld*_code
There are no uses of the *_cmmu names other than the bare wrapping
within the *_code inlines.  Therefore rename the functions so we
can drop the inlines.

Use abi_ptr instead of target_ulong in preparation for user-only;
the two types are identical for softmmu.

Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-01-15 15:13:10 -10:00
Peter Maydell
e021e6fe52 QAPI patches for 2020-01-14
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2020-01-14' into staging

QAPI patches for 2020-01-14

# gpg: Signature made Tue 14 Jan 2020 10:15:22 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2020-01-14:
  qapi: Simplify QAPISchemaModularCVisitor
  qapi: Fix code generation for empty modules
  qapi: Proper intermediate representation for modules
  qapi: Generate command registration stuff into separate files
  tests/Makefile.include: Fix missing test-qapi-emit-events.[ch]
  qapi: Tweak "command returns a nice type" check for clarity

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-14 16:42:27 +00:00
Markus Armbruster
00ca24ff9e qapi: Generate command registration stuff into separate files
Having to include qapi-commands.h just for qmp_init_marshal() is
suboptimal.  Generate it into separate files.  This lets
monitor/misc.c, qga/main.c, and the generated qapi-commands-FOO.h
include less.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191120182551.23795-4-armbru@redhat.com>
[Typos in docs/devel/qapi-code-gen.txt fixed]
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-01-14 11:01:58 +01:00
Peter Maydell
981c9b88e6 * Move qtests into a separate directory
* Build index.html for docs
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Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2020-01-12' into staging

* Move qtests into a separate directory
* Build index.html for docs

# gpg: Signature made Sun 12 Jan 2020 11:21:41 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/huth-gitlab/tags/pull-request-2020-01-12:
  docs: build an index page for the HTML docs
  tests/libqos: Move the libqos files under tests/qtest/
  tests/Makefile: Move qtest-related settings to a separate Makefile.include
  test: Move qtests to a separate directory
  tests/Makefile: Separate unit test dependencies from qtest dependencies
  tests/Makefile: Remove 'tests/' and '$(EXESUF)' from the check-qtest variables
  tests/ptimer: Remove unnecessary inclusion of libqtest.h
  tests/Makefile: test-char does not need libqtest

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-13 13:06:49 +00:00
Stefan Hajnoczi
22108f333d docs: build an index page for the HTML docs
There is no index.html start page for the QEMU HTML documentation.  An
index page is needed so that documentation can be browsed easily on the
web.

This patch adds an index.html.in template file where the QEMU version
number is expanded.  It is written in HTML instead of using the existing
sphinx (rST) and texi documentation generators because they are
heavyweight and would make this harder.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20191219135620.1626608-1-stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-01-12 11:42:41 +01:00
Peter Maydell
b952544fe8 * Compat machines fix (Denis)
* Command line parsing fixes (Michal, Peter, Xiaoyao)
 * Cooperlake CPU model fixes (Xiaoyao)
 * i386 gdb fix (mkdolata)
 * IOEventHandler cleanup (Philippe)
 * icount fix (Pavel)
 * RR support for random number sources (Pavel)
 * Kconfig fixes (Philippe)
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 Version: GnuPG v2.0.22 (GNU/Linux)
 
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Compat machines fix (Denis)
* Command line parsing fixes (Michal, Peter, Xiaoyao)
* Cooperlake CPU model fixes (Xiaoyao)
* i386 gdb fix (mkdolata)
* IOEventHandler cleanup (Philippe)
* icount fix (Pavel)
* RR support for random number sources (Pavel)
* Kconfig fixes (Philippe)

# gpg: Signature made Wed 08 Jan 2020 10:41:00 GMT
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (38 commits)
  chardev: Use QEMUChrEvent enum in IOEventHandler typedef
  chardev: use QEMUChrEvent instead of int
  chardev/char: Explicit we ignore some QEMUChrEvent in IOEventHandler
  monitor/hmp: Explicit we ignore a QEMUChrEvent in IOEventHandler
  monitor/qmp: Explicit we ignore few QEMUChrEvent in IOEventHandler
  virtio-console: Explicit we ignore some QEMUChrEvent in IOEventHandler
  vhost-user-blk: Explicit we ignore few QEMUChrEvent in IOEventHandler
  vhost-user-net: Explicit we ignore few QEMUChrEvent in IOEventHandler
  vhost-user-crypto: Explicit we ignore some QEMUChrEvent in IOEventHandler
  ccid-card-passthru: Explicit we ignore QEMUChrEvent in IOEventHandler
  hw/usb/redirect: Explicit we ignore few QEMUChrEvent in IOEventHandler
  hw/usb/dev-serial: Explicit we ignore few QEMUChrEvent in IOEventHandler
  hw/char/terminal3270: Explicit ignored QEMUChrEvent in IOEventHandler
  hw/ipmi: Explicit we ignore some QEMUChrEvent in IOEventHandler
  hw/ipmi: Remove unnecessary declarations
  target/i386: Add missed features to Cooperlake CPU model
  target/i386: Add new bit definitions of MSR_IA32_ARCH_CAPABILITIES
  target/i386: Fix handling of k_gs_base register in 32-bit mode in gdbstub
  hw/rtc/mc146818: Add missing dependency on ISA Bus
  hw/nvram/Kconfig: Restrict CHRP NVRAM to machines using OpenBIOS or SLOF
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-10 17:16:49 +00:00
Peter Maydell
973d306dd6 virtio, pci, pc: fixes, features
Bugfixes all over the place.
 HMAT support.
 New flags for vhost-user-blk utility.
 Auto-tuning of seg max for virtio storage.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, pci, pc: fixes, features

Bugfixes all over the place.
HMAT support.
New flags for vhost-user-blk utility.
Auto-tuning of seg max for virtio storage.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Mon 06 Jan 2020 17:05:05 GMT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (32 commits)
  intel_iommu: add present bit check for pasid table entries
  intel_iommu: a fix to vtd_find_as_from_bus_num()
  virtio-net: delete also control queue when TX/RX deleted
  virtio: reset region cache when on queue deletion
  virtio-mmio: update queue size on guest write
  tests: add virtio-scsi and virtio-blk seg_max_adjust test
  virtio: make seg_max virtqueue size dependent
  hw: fix using 4.2 compat in 5.0 machine types for i440fx/q35
  vhost-user-scsi: reset the device if supported
  vhost-user: add VHOST_USER_RESET_DEVICE to reset devices
  hw/pci/pci_host: Let pci_data_[read/write] use unsigned 'size' argument
  hw/pci/pci_host: Remove redundant PCI_DPRINTF()
  virtio-mmio: Clear v2 transport state on soft reset
  ACPI: add expected files for HMAT tests (acpihmat)
  tests/bios-tables-test: add test cases for ACPI HMAT
  tests/numa: Add case for QMP build HMAT
  hmat acpi: Build Memory Side Cache Information Structure(s)
  hmat acpi: Build System Locality Latency and Bandwidth Information Structure(s)
  hmat acpi: Build Memory Proximity Domain Attributes Structure(s)
  numa: Extend CLI to provide memory side cache information
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-07 16:25:00 +00:00
Pavel Dovgalyuk
878ec29b9c replay: record and replay random number sources
Record/replay feature of icount allows deterministic running of execution
scenarios. Some CPUs and peripheral devices read random numbers from
external sources making deterministic execution impossible.
This patch adds recording and replaying of random read operations
into guest-random module, which is used by the virtual hardware.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Message-Id: <157675984852.14505.15709141760677102489.stgit@pasha-Precision-3630-Tower>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-07 12:08:39 +01:00
Marc-André Lureau
5010cec2bc Add dbus-vmstate object
When instantiated, this object will connect to the given D-Bus bus
"addr". During migration, it will take/restore the data from
org.qemu.VMState1 instances. See documentation for details.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-06 18:41:32 +04:00
Marc-André Lureau
a566907f1b docs: start a document to describe D-Bus usage
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-06 18:41:32 +04:00
Raphael Norwitz
d91d57e604 vhost-user: add VHOST_USER_RESET_DEVICE to reset devices
Add a VHOST_USER_RESET_DEVICE message which will reset the vhost user
backend. Disabling all rings, and resetting all internal state, ready
for the backend to be reinitialized.

A backend has to report it supports this features with the
VHOST_USER_PROTOCOL_F_RESET_DEVICE protocol feature bit. If it does
so, the new message is used instead of sending a RESET_OWNER which has
had inconsistent implementations.

Signed-off-by: David Vrabel <david.vrabel@nutanix.com>
Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <1572385083-5254-2-git-send-email-raphael.norwitz@nutanix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-05 07:03:03 -05:00
Micky Yun Chan
6620801f39 Implement backend program convention command for vhost-user-blk
This patch is to add standard commands defined in docs/interop/vhost-user.rst
For vhost-user-* program

Signed-off-by: Micky Yun Chan (michiboo) <chanmickyyun@gmail.com>
Message-Id: <20191209015331.5455-1-chanmickyyun@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-05 07:03:03 -05:00
Peter Maydell
f0dcfddece Pull request
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

# gpg: Signature made Fri 20 Dec 2019 10:25:11 GMT
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  virtio-blk: fix out-of-bounds access to bitmap in notify_guest_bh
  docs: fix rst syntax errors in unbuilt docs
  virtio-blk: deprecate SCSI passthrough

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-03 17:18:08 +00:00
Peter Maydell
f59b31e6d0 Various testing and logging updates
- test tci with Travis
   - enable multiarch testing in Travis
   - default to out-of-tree builds
   - make changing logfile safe via RCU
   - remove redundant tests
   - remove gtester test from docker
   - convert DEBUG_MMAP to tracepoints
   - remove hand rolled glob function
   - trigger tcg re-configure when needed
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-tesing-and-misc-191219-1' into staging

Various testing and logging updates

  - test tci with Travis
  - enable multiarch testing in Travis
  - default to out-of-tree builds
  - make changing logfile safe via RCU
  - remove redundant tests
  - remove gtester test from docker
  - convert DEBUG_MMAP to tracepoints
  - remove hand rolled glob function
  - trigger tcg re-configure when needed

# gpg: Signature made Thu 19 Dec 2019 08:24:08 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-tesing-and-misc-191219-1: (25 commits)
  tests/tcg: ensure we re-configure if configure.sh is updated
  trace: replace hand-crafted pattern_glob with g_pattern_match_simple
  linux-user: convert target_munmap debug to a tracepoint
  linux-user: log page table changes under -d page
  linux-user: add target_mmap_complete tracepoint
  linux-user: convert target_mmap debug to tracepoint
  linux-user: convert target_mprotect debug to tracepoint
  travis.yml: Remove the redundant clang-with-MAIN_SOFTMMU_TARGETS entry
  docker: gtester is no longer used
  Added tests for close and change of logfile.
  Add use of RCU for qemu_logfile.
  qemu_log_lock/unlock now preserves the qemu_logfile handle.
  Add a mutex to guarantee single writer to qemu_logfile handle.
  Cleaned up flow of code in qemu_set_log(), to simplify and clarify.
  Fix double free issue in qemu_set_log_filename().
  ci: build out-of-tree
  travis.yml: Enable builds on arm64, ppc64le and s390x
  tests/test-util-filemonitor: Skip test on non-x86 Travis containers
  tests/hd-geo-test: Skip test when images can not be created
  iotests: Skip test 079 if it is not possible to create large files
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-12-20 14:00:49 +00:00
Stefan Hajnoczi
f21673c35e docs: fix rst syntax errors in unbuilt docs
The .rst files outside docs/{devel,interop,specs} aren't built yet and
therefore a few syntax errors have slipped through.  Fix them.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20191111094411.427174-1-stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-12-19 16:20:21 +00:00
Wainer dos Santos Moschetta
1e48931c0c tests/vm: Allow to set qemu-img path
By default VM build test use qemu-img from system's PATH to
create the image disk. Due the lack of qemu-img on the system
or the desire to simply use a version built with QEMU, it would
be nice to allow one to set its path. So this patch makes that
possible by reading the path to qemu-img from QEMU_IMG if set,
otherwise it fallback to default behavior.

Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20191114134246.12073-2-wainersm@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-12-18 20:17:33 +00:00
Paolo Bonzini
f3224c5285 docs: add memory API reference
Add kernel-doc directive to parse and include doc comments from
include/exec/memory.h.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:36:58 +01:00
Peter Maydell
f298bb45dc docs: Create bitops.rst as example of kernel-docs
Create a bitops.rst which is just a container for the
kernel-doc comments in qemu/bitops.h.

This is mostly a test of the kernel-doc extension machinery.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190521122519.12573-7-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:36:57 +01:00
Peter Maydell
22b5ea75e1 docs/conf.py: Enable use of kerneldoc sphinx extension
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190521122519.12573-4-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:36:57 +01:00
Paolo Bonzini
e2c546358f docs: import Linux kernel-doc script and extension
Import Linux's kernel-doc script as of commit 15e2544ed38a1e, as well
as the Sphinx extension to call kernel-doc according to the arguments
and parameters given to a reStructuredText directive.

The kernel-doc extension accepts a filename, which is relative to
the QEMU source tree root.  The extension also notifies Sphinx about the
document dependency on the file, causing the document to be rebuilt when
the file has been changed.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-12-17 19:36:32 +01:00
Cleber Rosa
ba21bde930 Acceptance tests: use avocado tags for machine type
The same way the arch tag is being used as a fallback for the arch
parameter, let's do the same for QEMU's machine and avoid some boiler
plate code.

This is now possible because, since Avocado 72.0, it's possible to use
tags with names that match the machine types on QEMU.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20191104151323.9883-4-crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-12-16 11:23:19 -05:00
Alex Bennée
5c6ecbdc83 docs/devel: update tcg-plugins.rst with API versioning details
While we are at it fix up the quoted code sections with the inline ::
approach.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Robert Foley <robert.foley@linaro.org>
2019-11-20 10:53:31 +00:00
Alex Bennée
8ea6abf0d0 docs/devel: rename plugins.rst to tcg-plugins.rst
This makes it a bit clearer what this is about.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-11-20 10:53:31 +00:00
Sergio Lopez
62e9dc3582 docs/microvm.rst: add instructions for shutting down the guest
Add a new section explaining the particularities of the microvm
machine type for triggering a guest-initiated shut down.

Signed-off-by: Sergio Lopez <slp@redhat.com>
Message-Id: <20191115161338.42864-3-slp@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-11-19 10:01:34 +01:00
Sergio Lopez
ff9d708933 docs/microvm.rst: fix alignment in "Limitations"
Fix the alignment of the items in the "Limitations" section.

Signed-off-by: Sergio Lopez <slp@redhat.com>
Message-Id: <20191115161338.42864-2-slp@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-11-19 10:01:33 +01:00
Dr. David Alan Gilbert
df59feb197 global: Squash 'the the'
'the' has a tendency to double up; squash them back down.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191104185202.102504-1-dgilbert@redhat.com>
[lv: removed disas/libvixl/vixl/invalset.h change]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-11-06 17:19:40 +01:00
Andrew Jones
87014c6b36 target/arm/kvm: host cpu: Add support for sve<N> properties
Allow cpu 'host' to enable SVE when it's available, unless the
user chooses to disable it with the added 'sve=off' cpu property.
Also give the user the ability to select vector lengths with the
sve<N> properties. We don't adopt 'max' cpu's other sve property,
sve-max-vq, because that property is difficult to use with KVM.
That property assumes all vector lengths in the range from 1 up
to and including the specified maximum length are supported, but
there may be optional lengths not supported by the host in that
range. With KVM one must be more specific when enabling vector
lengths.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Message-id: 20191031142734.8590-10-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-11-01 20:40:59 +00:00
Andrew Jones
6fa8a37949 target/arm/cpu64: max cpu: Support sve properties with KVM
Extend the SVE vq map initialization and validation with KVM's
supported vector lengths when KVM is enabled. In order to determine
and select supported lengths we add two new KVM functions for getting
and setting the KVM_REG_ARM64_SVE_VLS pseudo-register.

This patch has been co-authored with Richard Henderson, who reworked
the target/arm/cpu64.c changes in order to push all the validation and
auto-enabling/disabling steps into the finalizer, resulting in a nice
LOC reduction.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Message-id: 20191031142734.8590-9-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-11-01 20:40:59 +00:00
Andrew Jones
0df9142d27 target/arm/cpu64: max cpu: Introduce sve<N> properties
Introduce cpu properties to give fine control over SVE vector lengths.
We introduce a property for each valid length up to the current
maximum supported, which is 2048-bits. The properties are named, e.g.
sve128, sve256, sve384, sve512, ..., where the number is the number of
bits. See the updates to docs/arm-cpu-features.rst for a description
of the semantics and for example uses.

Note, as sve-max-vq is still present and we'd like to be able to
support qmp_query_cpu_model_expansion with guests launched with e.g.
-cpu max,sve-max-vq=8 on their command lines, then we do allow
sve-max-vq and sve<N> properties to be provided at the same time, but
this is not recommended, and is why sve-max-vq is not mentioned in the
document.  If sve-max-vq is provided then it enables all lengths smaller
than and including the max and disables all lengths larger. It also has
the side-effect that no larger lengths may be enabled and that the max
itself cannot be disabled. Smaller non-power-of-two lengths may,
however, be disabled, e.g. -cpu max,sve-max-vq=4,sve384=off provides a
guest the vector lengths 128, 256, and 512 bits.

This patch has been co-authored with Richard Henderson, who reworked
the target/arm/cpu64.c changes in order to push all the validation and
auto-enabling/disabling steps into the finalizer, resulting in a nice
LOC reduction.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Reviewed-by: Beata Michalska <beata.michalska@linaro.org>
Message-id: 20191031142734.8590-5-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-11-01 20:40:59 +00:00
Andrew Jones
e19afd5667 target/arm/monitor: Introduce qmp_query_cpu_model_expansion
Add support for the query-cpu-model-expansion QMP command to Arm. We
do this selectively, only exposing CPU properties which represent
optional CPU features which the user may want to enable/disable.
Additionally we restrict the list of queryable cpu models to 'max',
'host', or the current type when KVM is in use. And, finally, we only
implement expansion type 'full', as Arm does not yet have a "base"
CPU type. More details and example queries are described in a new
document (docs/arm-cpu-features.rst).

Note, certainly more features may be added to the list of advertised
features, e.g. 'vfp' and 'neon'. The only requirement is that we can
detect invalid configurations and emit failures at QMP query time.
For 'vfp' and 'neon' this will require some refactoring to share a
validation function between the QMP query and the CPU realize
functions.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Beata Michalska <beata.michalska@linaro.org>
Message-id: 20191031142734.8590-2-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-11-01 08:49:10 +00:00
Peter Maydell
68d8ef4ec5 TCG Plugins initial implementation
- use --enable-plugins @ configure
   - low impact introspection (-plugin empty.so to measure overhead)
   - plugins cannot alter guest state
   - example plugins included in source tree (tests/plugins)
   - -d plugin to enable plugin output in logs
   - check-tcg runs extra tests when plugins enabled
   - documentation in docs/devel/plugins.rst
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-tcg-plugins-281019-4' into staging

TCG Plugins initial implementation

  - use --enable-plugins @ configure
  - low impact introspection (-plugin empty.so to measure overhead)
  - plugins cannot alter guest state
  - example plugins included in source tree (tests/plugins)
  - -d plugin to enable plugin output in logs
  - check-tcg runs extra tests when plugins enabled
  - documentation in docs/devel/plugins.rst

# gpg: Signature made Mon 28 Oct 2019 15:13:23 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-tcg-plugins-281019-4: (57 commits)
  travis.yml: enable linux-gcc-debug-tcg cache
  MAINTAINERS: add me for the TCG plugins code
  scripts/checkpatch.pl: don't complain about (foo, /* empty */)
  .travis.yml: add --enable-plugins tests
  include/exec: wrap cpu_ldst.h in CONFIG_TCG
  accel/stubs: reduce headers from tcg-stub
  tests/plugin: add hotpages to analyse memory access patterns
  tests/plugin: add instruction execution breakdown
  tests/plugin: add a hotblocks plugin
  tests/tcg: enable plugin testing
  tests/tcg: drop test-i386-fprem from TESTS when not SLOW
  tests/tcg: move "virtual" tests to EXTRA_TESTS
  tests/tcg: set QEMU_OPTS for all cris runs
  tests/tcg/Makefile.target: fix path to config-host.mak
  tests/plugin: add sample plugins
  linux-user: support -plugin option
  vl: support -plugin option
  plugin: add qemu_plugin_outs helper
  plugin: add qemu_plugin_insn_disas helper
  plugin: expand the plugin_init function to include an info block
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-30 14:10:32 +00:00
Jens Freimann
9711cd0dfc net/virtio: add failover support
This patch adds support to handle failover device pairs of a virtio-net
device and a (vfio-)pci device, where the virtio-net acts as the standby
device and the (vfio-)pci device as the primary.

The general idea is that we have a pair of devices, a (vfio-)pci and a
emulated (virtio-net) device. Before migration the vfio device is
unplugged and data flows to the emulated device, on the target side
another (vfio-)pci device is plugged in to take over the data-path. In the
guest the net_failover module will pair net devices with the same MAC
address.

To achieve this we need:

1. Provide a callback function for the should_be_hidden DeviceListener.
   It is called when the primary device is plugged in. Evaluate the QOpt
   passed in to check if it is the matching primary device. It returns
   if the device should be hidden or not.
   When it should be hidden it stores the device options in the VirtioNet
   struct and the device is added once the VIRTIO_NET_F_STANDBY feature is
   negotiated during virtio feature negotiation.

   If the virtio-net devices are not realized at the time the (vfio-)pci
   devices are realized, we need to connect the devices later. This way
   we make sure primary and standby devices can be specified in any
   order.

2. Register a callback for migration status notifier. When called it
   will unplug its primary device before the migration happens.

3. Register a callback for the migration code that checks if a device
   needs to be unplugged from the guest.

Signed-off-by: Jens Freimann <jfreimann@redhat.com>
Message-Id: <20191029114905.6856-11-jfreimann@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-10-29 18:55:26 -04:00
Alex Bennée
027e3332b8 docs/devel: add plugins.rst design document
This is mostly extracted from Emilio's more verbose commit comments
with some additional verbiage from me.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2019-10-28 15:12:38 +00:00
Paolo Bonzini
673652a785 Merge commit 'df84f17' into HEAD
This merge fixes a semantic conflict with the trivial tree.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-26 15:38:02 +02:00
Peter Krempa
23394b4c39 qapi: Add feature flags to commands
Similarly to features for struct types introduce the feature flags also
for commands. This will allow notifying management layers of fixes and
compatible changes in the behaviour of a command which may not be
detectable any other way.

The changes were heavily inspired by commit 6a8c0b5102.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191018081454.21369-3-armbru@redhat.com>
2019-10-22 13:54:13 +02:00
Sergio Lopez
e00803aab4 docs/microvm.rst: document the new microvm machine type
Document the new microvm machine type.

Signed-off-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2019-10-22 09:39:54 +02:00
Vitaly Kuznetsov
30d6ff662d i386/kvm: add NoNonArchitecturalCoreSharing Hyper-V enlightenment
Hyper-V TLFS specifies this enlightenment as:
"NoNonArchitecturalCoreSharing - Indicates that a virtual processor will never
share a physical core with another virtual processor, except for virtual
processors that are reported as sibling SMT threads. This can be used as an
optimization to avoid the performance overhead of STIBP".

However, STIBP is not the only implication. It was found that Hyper-V on
KVM doesn't pass MD_CLEAR bit to its guests if it doesn't see
NoNonArchitecturalCoreSharing bit.

KVM reports NoNonArchitecturalCoreSharing in KVM_GET_SUPPORTED_HV_CPUID to
indicate that SMT on the host is impossible (not supported of forcefully
disabled).

Implement NoNonArchitecturalCoreSharing support in QEMU as tristate:
'off' - the feature is disabled (default)
'on' - the feature is enabled. This is only safe if vCPUS are properly
 pinned and correct topology is exposed. As CPU pinning is done outside
 of QEMU the enablement decision will be made on a higher level.
'auto' - copy KVM setting. As during live migration SMT settings on the
source and destination host may differ this requires us to add a migration
blocker.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20191018163908.10246-1-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-22 09:38:42 +02:00
Peter Maydell
39b68bc4f1 virtio, vhost, acpi: features, fixes, tests
ARM ACPI memory hotplug support +
 tests for new arm/virt ACPI tables.
 
 Virtio fs support (no migration).
 A vhost-user reconnect bugfix.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, vhost, acpi: features, fixes, tests

ARM ACPI memory hotplug support +
tests for new arm/virt ACPI tables.

Virtio fs support (no migration).
A vhost-user reconnect bugfix.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Tue 15 Oct 2019 22:02:19 BST
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  virtio: add vhost-user-fs-pci device
  virtio: add vhost-user-fs base device
  virtio: Add virtio_fs linux headers
  tests/acpi: add expected tables for arm/virt
  tests: document how to update acpi tables
  tests: Add bios tests to arm/virt
  tests: allow empty expected files
  tests/acpi: add empty files
  tests: Update ACPI tables list for upcoming arm/virt tests
  docs/specs: Add ACPI GED documentation
  hw/arm: Use GED for system_powerdown event
  hw/arm: Factor out powerdown notifier from GPIO
  hw/arm/virt-acpi-build: Add PC-DIMM in SRAT
  hw/arm/virt: Enable device memory cold/hot plug with ACPI boot
  hw/arm/virt: Add memory hotplug framework
  hw/acpi: Add ACPI Generic Event Device Support
  hw/acpi: Do not create memory hotplug method when handler is not defined
  hw/acpi: Make ACPI IO address space configurable
  vhost-user: save features if the char dev is closed

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-17 15:30:44 +01:00
Peter Maydell
3af78db681 Block layer patches:
- block: Fix crash with qcow2 partial cluster COW with small cluster
   sizes (misaligned write requests with BDRV_REQ_NO_FALLBACK)
 - qcow2: Fix integer overflow potentially causing corruption with huge
   requests
 - vhdx: Detect truncated image files
 - tools: Support help options for --object
 - Various block-related replay improvements
 - iotests/028: Fix for long $TEST_DIRs
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- block: Fix crash with qcow2 partial cluster COW with small cluster
  sizes (misaligned write requests with BDRV_REQ_NO_FALLBACK)
- qcow2: Fix integer overflow potentially causing corruption with huge
  requests
- vhdx: Detect truncated image files
- tools: Support help options for --object
- Various block-related replay improvements
- iotests/028: Fix for long $TEST_DIRs

# gpg: Signature made Mon 14 Oct 2019 17:02:54 BST
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream:
  iotests: Test large write request to qcow2 file
  qcow2: Limit total allocation range to INT_MAX
  qemu-nbd: Support help options for --object
  qemu-img: Support help options for --object
  qemu-io: Support help options for --object
  vl: Split off user_creatable_print_help()
  iotests/028: Fix for long $TEST_DIRs
  block: Reject misaligned write requests with BDRV_REQ_NO_FALLBACK
  replay: add BH oneshot event for block layer
  replay: finish record/replay before closing the disks
  replay: don't drain/flush bdrv queue while RR is working
  replay: update docs for record/replay with block devices
  replay: disable default snapshot for record/replay
  block: implement bdrv_snapshot_goto for blkreplay
  block/vhdx: add check for truncated image files

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-15 13:25:05 +01:00
Peter Maydell
9020e9526c Pull request
v2:
  * Replaced "Launchpad:" tag with "Buglink:" as documented on the SubmitAPatch wiki page [Philippe]
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Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging

Pull request

v2:
 * Replaced "Launchpad:" tag with "Buglink:" as documented on the SubmitAPatch wiki page [Philippe]

# gpg: Signature made Tue 15 Oct 2019 09:49:05 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/tracing-pull-request:
  trace: avoid "is" with a literal Python 3.8 warnings
  trace: add --group=all to tracing.txt

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-15 12:00:33 +01:00
Stefan Hajnoczi
bd200384c5 trace: add --group=all to tracing.txt
tracetool needs to know the group name ("all", "root", or a specific
subdirectory).  Also remove the stdin redirection because tracetool.py
needs the path to the trace-events file.  Update the documentation.

Fixes: 2098c56a9b
       ("trace: move setting of group name into Makefiles")
Buglink: https://bugs.launchpad.net/bugs/1844814
Reported-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20191009135154.10970-1-stefanha@redhat.com>
2019-10-15 09:46:21 +01:00
Pavel Dovgalyuk
de499eb67c replay: update docs for record/replay with block devices
This patch updates the description of the command lines for using
record/replay with attached block devices.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-10-14 17:12:48 +02:00
Dr. David Alan Gilbert
5626f8c6d4 rcu: Add automatically released rcu_read_lock variants
RCU_READ_LOCK_GUARD() takes the rcu_read_lock and then uses glib's
g_auto infrastructure (and thus whatever the compiler's hooks are) to
release it on all exits of the block.

WITH_RCU_READ_LOCK_GUARD() is similar but is used as a wrapper for the
lock, i.e.:

   WITH_RCU_READ_LOCK_GUARD() {
       stuff under lock
   }

Note the 'unused' attribute is needed to work around clang bug:
  https://bugs.llvm.org/show_bug.cgi?id=43482

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20191007143642.301445-2-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-10-11 14:19:49 +01:00
Shameer Kolothum
e86fba5009 docs/specs: Add ACPI GED documentation
Documents basic concepts of ACPI Generic Event device(GED)
and interface between QEMU and the ACPI BIOS.

Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20190918130633.4872-10-shameerali.kolothum.thodi@huawei.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-10-05 17:12:09 -04:00
Alex Bennée
f8ed349e6d docs/devel: add "check-tcg" to testing.rst
It was pointed out we haven't documented the check-tcg part of the
build system. Attempt to rectify that now.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2019-09-26 19:00:53 +01:00
Markus Armbruster
9d55380b5a qapi: Remove null from schema language
We represent the parse tree as OrderedDict.  We fetch optional dict
members with .get().  So far, so good.

We represent null literals as None.  .get() returns None both for
"absent" and for "present, value is the null literal".  Uh-oh.

Test features-if-invalid exposes this bug: "'if': null" is
misinterpreted as absent "if".

We added null to the schema language to "allow [...] an explicit
default value" (commit e53188ada5 "qapi: Allow true, false and null in
schema json", v2.4.0).  Hasn't happened; null is still unused except
as generic invalid value in tests/.

To fix, we'd have to replace .get() by something more careful, or
represent null differently.  Feasible, but we got more and bigger fish
to fry right now.  Remove the null literal from the schema language.
Replace null in tests by another invalid value.

Test features-if-invalid now behaves as it should.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190914153506.2151-10-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2019-09-24 14:07:23 +02:00