Commit Graph

1024 Commits

Author SHA1 Message Date
Peter Maydell
516e8b7d4a configure: Honour --disable-werror for Sphinx
If we are not making warnings fatal for compilation, make them
non-fatal when building the Sphinx documentation also.  (For instance
Sphinx 3.0 warns about some constructs that older versions were happy
with, which is a build failure if we use the warnings-as-errors
flag.)

This provides a workaround at least for LP:1872113.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200411182934.28678-2-peter.maydell@linaro.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2020-04-14 13:15:40 +01:00
Richard Henderson
ee5195ee0f configure: Drop adjustment of textseg
This adjustment was random and unnecessary.  The user mode
startup code in probe_guest_base() will choose a value for
guest_base that allows the host qemu binary to not conflict
with the guest binary.

With modern distributions, this isn't even used, as the default
is PIE, which does the same job in a more portable way.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v2: Remove mention of config-host.ld from make distclean
2020-03-28 14:09:44 -07:00
Peter Maydell
d649689a8e * Bugfixes all over the place
* get/set_uint cleanups (Felipe)
 * Lock guard support (Stefan)
 * MemoryRegion ownership cleanup (Philippe)
 * AVX512 optimization for buffer_is_zero (Robert)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Bugfixes all over the place
* get/set_uint cleanups (Felipe)
* Lock guard support (Stefan)
* MemoryRegion ownership cleanup (Philippe)
* AVX512 optimization for buffer_is_zero (Robert)

# gpg: Signature made Tue 17 Mar 2020 15:01:54 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: (62 commits)
  hw/arm: Let devices own the MemoryRegion they create
  hw/arm: Remove unnecessary memory_region_set_readonly() on ROM alias
  hw/ppc/ppc405: Use memory_region_init_rom() with read-only regions
  hw/arm/stm32: Use memory_region_init_rom() with read-only regions
  hw/char: Let devices own the MemoryRegion they create
  hw/riscv: Let devices own the MemoryRegion they create
  hw/dma: Let devices own the MemoryRegion they create
  hw/display: Let devices own the MemoryRegion they create
  hw/core: Let devices own the MemoryRegion they create
  scripts/cocci: Patch to let devices own their MemoryRegions
  scripts/cocci: Patch to remove unnecessary memory_region_set_readonly()
  scripts/cocci: Patch to detect potential use of memory_region_init_rom
  hw/sparc: Use memory_region_init_rom() with read-only regions
  hw/sh4: Use memory_region_init_rom() with read-only regions
  hw/riscv: Use memory_region_init_rom() with read-only regions
  hw/ppc: Use memory_region_init_rom() with read-only regions
  hw/pci-host: Use memory_region_init_rom() with read-only regions
  hw/net: Use memory_region_init_rom() with read-only regions
  hw/m68k: Use memory_region_init_rom() with read-only regions
  hw/display: Use memory_region_init_rom() with read-only regions
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-17 18:33:05 +00:00
Bin Meng
a6fcc80bea
roms: opensbi: Add 32-bit firmware image for sifive_u machine
Although the real world SiFive HiFive Unleashed board is a 64-bit
hardware configuration, with QEMU it is possible to test 32-bit
configuration with the same hardware features.

This updates the roms Makefile to add the build rules for creating
the 32-bit OpenSBI firmware image for sifive_u machine. A pre-built
OpenSBI v0.6 image has been added as the default bios for 32-bit
sifive_u machine.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-03-16 17:03:48 -07:00
Philippe Mathieu-Daudé
81ed0a5778 Makefile: Let the 'help' target list the tools targets
List the name of the tool targets when calling 'make help':

  $ make help
  [...]
  Tools targets:
    qemu-ga                        - Build qemu-ga tool
    qemu-keymap                    - Build qemu-keymap tool
    elf2dmp                        - Build elf2dmp tool
    ivshmem-client                 - Build ivshmem-client tool
    ivshmem-server                 - Build ivshmem-server tool
    qemu-nbd                       - Build qemu-nbd tool
    qemu-img                       - Build qemu-img tool
    qemu-io                        - Build qemu-io tool
    qemu-edid                      - Build qemu-edid tool
    fsdev/virtfs-proxy-helper      - Build virtfs-proxy-helper tool
    scsi/qemu-pr-helper            - Build qemu-pr-helper tool

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-16 23:02:24 +01:00
Philippe Mathieu-Daudé
c355de59ae Makefile: Align 'help' target output
The 'help' target is displayed unaligned. Add a print-help
function and use it. Now if someone want to change the
indentation, there is a single place to modify.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-16 23:02:24 +01:00
Peter Maydell
814e068fb2 Makefile: Allow for subdirectories in Sphinx manual dependencies
Currently we put 'docs/foo/*.rst' in the Make list of dependencies
for the Sphinx 'foo' manual, which means all the files must be
in the top level of that manual's directory. We'd like to be
able to have subdirectories inside some of the manuals, so add
'docs/foo/*/*.rst' to the dependencies too.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200309215818.2021-2-peter.maydell@linaro.org
2020-03-12 11:20:19 +00:00
Peter Maydell
9165d323b0 Makefile: Make all Sphinx documentation depend on the extensions
Add the Python source files of our Sphinx extensions to the
dependencies of the Sphinx manuals, so that if we edit the
extension source code the manuals get rebuilt.

Adding this dependency unconditionally means that we'll rebuild
a manual even if it happens to not use the extension whose
source file was changed, but this is simpler and less error
prone, and it's unlikely that we'll be making frequent changes
to the extensions.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200306171749.10756-6-peter.maydell@linaro.org
2020-03-12 11:14:06 +00:00
Peter Maydell
d1055e3a2a Makefile: Remove redundant Texinfo related code
The recent conversion of qemu-doc.texi to rST forgot a few stray bits
of makefile code that are now redundant. Remove them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200306171749.10756-2-peter.maydell@linaro.org
2020-03-12 11:14:05 +00:00
Philippe Mathieu-Daudé
1a28f878b5 build-sys: Move the print-variable rule to rules.mak
Currently the print-variable rule can only be used in the
root directory:

  $ make print-vhost-user-json-y
  vhost-user-json-y= contrib/vhost-user-gpu/50-qemu-gpu.json tools/virtiofsd/50-qemu-virtiofsd.json

  $ make -C i386-softmmu print-obj-y
  make: Entering directory 'build/i386-softmmu'
  make: *** No rule to make target 'print-obj-y'.  Stop.
  make: Leaving directory 'build/i386-softmmu'

Move it to rules.mak so we can use it from other directories:

  $ make -C i386-softmmu print-obj-y
  make: Entering directory 'build/i386-softmmu'
  obj-y=qapi-introspect.o qapi-types-machine-target.o qapi-types-misc-target.o qapi-types.o qapi-visit-machine-target.o qapi-visit-misc-target.o qapi-visit.o qapi-events-machine-target.o qapi-events-misc-target.o qapi-events.o qapi-commands-machine-target.o qapi-commands-misc-target.o qapi-commands.o qapi-init-commands.o
  make: Leaving directory 'build/i386-softmmu'

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200306170456.21977-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-09 15:59:31 +01:00
Kevin Wolf
2af282ec51 qemu-storage-daemon: Add --monitor option
This adds and parses the --monitor option, so that a QMP monitor can be
used in the storage daemon. The monitor offers commands defined in the
QAPI schema at storage-daemon/qapi/qapi-schema.json.

The --monitor options currently allows to create multiple monitors with
the same ID. This part of the interface is considered unstable. We will
reject such configurations as soon as we have a design for the monitor
subsystem to perform these checks. (In the system emulator, we depend on
QemuOpts rejecting duplicate IDs.)

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200224143008.13362-21-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06 17:21:28 +01:00
Kevin Wolf
5e6911cf11 qemu-storage-daemon: Add --chardev option
This adds a --chardev option to the storage daemon that works the same
as the -chardev option of the system emulator.

The syntax of the --chardev option is still considered unstable. We want
to QAPIfy it and will potentially make changes to its syntax while
converting it. However, we haven't decided yet on a design for the
QAPIfication, so QemuOpts will have to do for now.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200224143008.13362-14-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06 17:21:28 +01:00
Kevin Wolf
14837c6493 qemu-storage-daemon: Add --blockdev option
This adds a --blockdev option to the storage daemon that works the same
as the -blockdev option of the system emulator.

In order to be able to link with blockdev.o, we also need to change
stream.o from common-obj to block-obj, which is where all other block
jobs already are.

In contrast to the system emulator, qemu-storage-daemon options will be
processed in the order they are given. The user needs to take care to
refer to other objects only after defining them.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200224143008.13362-7-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06 17:15:38 +01:00
Kevin Wolf
f353415ffd qemu-storage-daemon: Add barebone tool
This adds a new binary qemu-storage-daemon that doesn't yet do more than
some typical initialisation for tools and parsing the basic command
options --version, --help and --trace.

Even though this doesn't add any options yet that create things (like
--object or --blockdev), already document that we're planning to process
them in the order they are given on the command line rather than trying
(and failing, like vl.c) to resolve dependencies between options
automatically.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200224143008.13362-2-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-03-06 17:15:38 +01:00
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
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
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
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
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
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
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
Peter Maydell
c1e667d259 Pull request
This pull request contains a virtio-blk/scsi performance optimization, event
 loop scalability improvements, and a qtest-based device fuzzing framework.  I
 am including the fuzzing patches because I have reviewed them and Thomas Huth
 is currently away on leave.
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

This pull request contains a virtio-blk/scsi performance optimization, event
loop scalability improvements, and a qtest-based device fuzzing framework.  I
am including the fuzzing patches because I have reviewed them and Thomas Huth
is currently away on leave.

# gpg: Signature made Sat 22 Feb 2020 08:50:05 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: (31 commits)
  fuzz: add documentation to docs/devel/
  fuzz: add virtio-scsi fuzz target
  fuzz: add virtio-net fuzz target
  fuzz: add i440fx fuzz targets
  fuzz: add configure flag --enable-fuzzing
  fuzz: add target/fuzz makefile rules
  fuzz: add support for qos-assisted fuzz targets
  fuzz: support for fork-based fuzzing.
  main: keep rcu_atfork callback enabled for qtest
  exec: keep ram block across fork when using qtest
  fuzz: add fuzzer skeleton
  libqos: move useful qos-test funcs to qos_external
  libqos: split qos-test and libqos makefile vars
  libqos: rename i2c_send and i2c_recv
  qtest: add in-process incoming command handler
  libqtest: make bufwrite rely on the TransportOps
  libqtest: add a layer of abstraction to send/recv
  qtest: add qtest_server_send abstraction
  fuzz: add FUZZ_TARGET module type
  module: check module wasn't already initialized
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-02-24 11:38:54 +00:00
Alexander Bulekov
c621dc3e01 fuzz: add target/fuzz makefile rules
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20200220041118.23264-18-alxndr@bu.edu
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-02-22 08:26:48 +00:00
Miroslav Rezanina
5bb8e8beed docs: Fix virtiofsd.1 location
Patch 6a7e2bbee5 docs: add virtiofsd(1) man page introduced new man
page virtiofsd.1. Unfortunately, wrong file location is used as
source for install command. This cause installation of docs fail.

Fixing wrong location so installation is successful.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Message-Id: <1608747495.7195569.1581513386780.JavaMail.zimbra@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-02-21 13:05:27 +00:00
Peter Maydell
18064a6243 Makefile: Fix typo in dependency list for interop manpages
Fix a typo in the dependency list for the manpages built from the
'interop' manual, which meant we were accidentally not including
the .hx file in the dependency list.

Fixes: e13c59fa44
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200213175647.17628-4-peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-02-15 11:41:49 +01:00
Peter Maydell
2eb054c237 configure: Allow user to specify sphinx-build binary
Currently we insist on using 'sphinx-build' from the $PATH;
allow the user to specify the binary to use. This will be
more useful as we become pickier about the capabilities
we require (eg needing a Python 3 sphinx-build).

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: <20200213175647.17628-2-peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-02-14 16:31:21 +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
Thomas Huth
ea763fd233 Makefile: Do not use wildcard hw/*/Kconfig as input for minikconf
The hw/*/Kconfig files should be sourced from hw/Kconfig, so there
is no need to pass them along as input files to minikconfig. We should
use the hw/*/Kconfig wildcard only for build dependencies in the Makefile.

With this change, there are now no duplicate entries in the generated
*-softmmu/config-devices.mak.d files anymore, and there is finally a
chance to get rid of stale Kconfig files like hw/bt/Kconfig, too (once
they do not show up in the config-devices.mak.d files now anymore).

Message-Id: <20200203153905.20544-1-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
e0f3728d81 Makefile: Ensure we don't run Sphinx in parallel for manpages
Sphinx will corrupt its doctree cache if we run two copies
of it in parallel. In commit 6bda415c10 we worked
around this by having separate doctrees for 'html' vs 'manpage'
runs. However now that we have more than one manpage produced
from a single manual we can run into this again when trying
to produce the two manpages.

Use the trick described in 'Atomic Rules in GNU Make'
https://www.cmcrossroads.com/article/atomic-rules-gnu-make
to ensure that we only run the Sphinx manpage builder once
for each manual, even if we're producing several manpages.
This fixes doctree corruption in parallel builds and also
avoids pointlessly running Sphinx more often than we need to.

(In GNU Make 4.3 there is builtin support for this, via
the "&:" syntax, but we can't wait for that to be available
in all the distros we support...)

The generic "one invocation for multiple output files"
machinery is provided as a macro named 'atomic' in rules.mak;
we then wrap this in a more specific macro for defining
the rule and dependencies for the manpages in a Sphinx
manual, to avoid excessive repetition.

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: 20200124162606.8787-2-peter.maydell@linaro.org
2020-02-03 10:46:32 +00:00
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
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)
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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
Paolo Bonzini
db5adeaa84 build-sys: clean up flags included in the linker command line
Some of the CFLAGS that are discovered during configure, for example
compiler warnings, are being included on the linker command line because
QEMU_CFLAGS is added to it.  Other flags, such as the -m32, appear twice
because they are included in both QEMU_CFLAGS and LDFLAGS.  All this
leads to confusion with respect to what goes in which Makefile variables
(and we have plenty).

So, introduce QEMU_LDFLAGS for flags discovered by configure, following
the lead of QEMU_CFLAGS, and stop adding to it:

1) options that are already in CFLAGS, for example "-g"

2) duplicate options

At the same time, options that _are_ needed by both compiler and linker
must now be added to both QEMU_CFLAGS and QEMU_LDFLAGS, which is clearer.
This is mostly -fsanitize options.  For now, --extra-cflags has this behavior
(but --extra-cxxflags does not).

Meson will not include CFLAGS on the linker command line, do the same in our
build system as well.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-24 20:59:17 +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
Dr. David Alan Gilbert
2405f3c0d1 virtiofsd: cap-ng helpers
libcap-ng reads /proc during capng_get_caps_process, and virtiofsd's
sandboxing doesn't have /proc mounted; thus we have to do the
caps read before we sandbox it and save/restore the state.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23 16:41:37 +00:00
Stefan Hajnoczi
4f8bde99c1 virtiofsd: add seccomp whitelist
Only allow system calls that are needed by virtiofsd.  All other system
calls cause SIGSYS to be directed at the thread and the process will
coredump.

Restricting system calls reduces the kernel attack surface and limits
what the process can do when compromised.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
with additional entries by:
Signed-off-by: Ganesh Maharaj Mahalingam <ganesh.mahalingam@intel.com>
Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Signed-off-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: piaojun <piaojun@huawei.com>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Eric Ren <renzhen@linux.alibaba.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-23 16:41:37 +00:00
Stefan Hajnoczi
315616ed50 virtiofsd: add vhost-user.json file
Install a vhost-user.json file describing virtiofsd.  This allows
libvirt and other management tools to enumerate vhost-user backend
programs.

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
Dr. David Alan Gilbert
81bfc42dcf virtiofsd: Add Makefile wiring for virtiofsd contrib
Wire up the building of the virtiofsd in tools.

virtiofsd relies on Linux-specific system calls and seccomp.  Anyone
wishing to port it to other host operating systems should do so
carefully and without reducing security.

Only allow building on Linux hosts.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.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