Commit Graph

100710 Commits

Author SHA1 Message Date
Alex Bennée
9d195efd65 docs: add hotlinks to about preface text
Make it easier to navigate the documentation.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230124180127.1881110-20-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Thomas Huth
51d11acf31 MAINTAINERS: Fix the entry for tests/tcg/nios2
tests/tcg/nios2/Makefile.target has accidentally been added
to the Microblaze section. Move it into the correct nios2
section instead - and while we're at it, it should also cover
the whole folder, and not only the Makefile.

Fixes: 67f80eb4d0 ("tests/tcg: enable debian-nios2-cross for test building")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230119130326.2030297-1-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-19-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
6e890b0521 gitlab: wrap up test results for custom runners
Instead of spewing the whole log to stdout lets just define them as
build artefacts so we can examine them later. Where we are running
check-tcg run it first as those tests are yet to be integrated into
meson. To avoid confusion we don't run multiple check-tcg tests at
once.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-18-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Richard Henderson
57dbce5a4f tests/tcg: Use SIGKILL for timeout
linux-user blocks all signals while attempting to handle guest
signals (e.g. ABRT), which means that the default TERM sent by timeout
has no effect -- KILL instead.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230117035701.168514-2-richard.henderson@linaro.org>
[AJB: expanded commit message from cover letter]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230124180127.1881110-17-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
5842de5157 tests/tcg: skip the vma-pthread test on CI
We are getting a lot of failures that are not related to changes so
this could be a flaky test.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-16-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
5b96363262 tests/docker: drop debian-tricore-cross's partial status
This image is perfectly capable of building QEMU, and indeed we do
that on gitlab. Drop the DOCKER_PARTIAL_IMAGES setting so we can also
test the gitlab build locally.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-15-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Philippe Mathieu-Daudé
7ac17cb8b2 tests/docker: Install flex in debian-tricore-cross
When flex is not available, binutils sources default to the
'missing' script, but the current script available is not in
the format expected by the 'configure' script:

  $ ./configure
  ...
  /usr/src/binutils/missing: Unknown `--run' option
  Try `/usr/src/binutils/missing --help' for more information
  configure: WARNING: `missing' script is too old or missing
  ...
  checking for bison... bison -y
  checking for flex... no
  checking for lex... no
  checking for flex... /usr/src/binutils/missing flex

  $ make
  ...
  updating ldgram.h
  gcc -DHAVE_CONFIG_H -I. -I. -I. -D_GNU_SOURCE -I. -I. -I../bfd -I./../bfd -I./../include -I./../intl -I../intl  -w -DLOCALEDIR="\"/usr/local/share/locale\""   -W -Wall -Wstrict-prototypes -Wmissing-prototypes -w -c `test -f 'ldgram.c' || echo './'`ldgram.c
  `test -f ldlex.l || echo './'`ldlex.l
  /bin/sh: 1: ldlex.l: not found
  make[3]: *** [Makefile:662: ldlex.c] Error 127
  make[3]: Leaving directory '/usr/src/binutils/ld'
  make[2]: *** [Makefile:799: all-recursive] Error 1

By pass the 'missing' script use by directly installing 'flex'
in the container.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230112155643.7408-1-philmd@linaro.org>
Reviewed-by: Bastian-Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-14-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
df07c72a74 lcitool: drop texinfo from QEMU project/dependencies
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230110132700.833690-9-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-13-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
7a6e869cb5 lcitool: drop perl from QEMU project/dependencies
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230110132700.833690-8-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-12-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
0054dc8bde Update lcitool and fedora to 37
Fedora 35 is EOL.

Update to upstream lcitool, that dropped f35 and added f37.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230110132700.833690-7-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-11-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
3ab8bf8341 gitlab: add lsan suppression file to workaround tcmalloc issues
The up-coming upgrade to Fedora 37 will bring in libtcmalloc as a
dependency of libglusterfs which confuses our fuzz run. Rather than
disable the build lets use LSAN's suppression mechanism to prevent the
job from failing.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230124180127.1881110-10-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
d89935c95e docs: drop texinfo options
It looks like this is no longer wanted, we only build the html output.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230110132700.833690-6-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-9-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
ec91e92378 meson: replace Perl usage with Python
Let's try to remove Perl usage during build time.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230110132700.833690-5-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-8-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
7195f30248 .gitlab-ci.d/windows: do not disable opengl
The previous patch should have fixed shader compilation.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230110132700.833690-3-marcandre.lureau@redhat.com>
[AJB: tweak commit message]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-7-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
e2c4012bc3 build-sys: fix crlf-ending C code
On msys2, the shader-to-C script produces bad C:
./ui/shader/texture-blit-vert.h:2:5: error: missing terminating " character [-Werror]

Fix it by changing the line ending from crlf to lf, and convert the
script to Python (qemu build seems perl-free after that).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230110132700.833690-2-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-6-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
c906e6fbaa tests/unit: drop hacky race avoidance in test-io-channel-command
We don't need to play timing games to ensure one socat wins over the
other, just create the fifo they both can use before spawning the
processes. However in the process we need to disable two tests for
Windows platforms as we don't have an abstraction for mkfifo().

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1403
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230124180127.1881110-5-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
c34bf19feb gitlab: just use plain --cc=clang for custom runner build
I think this was because older Ubuntu's didn't alias clang to whatever
the latest version was. They do now so lets use that and not break.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-4-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Mark Cave-Ayland
075d909d04 gitlab: add FF_SCRIPT_SECTIONS for timings
Suggested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230124180127.1881110-3-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
69c4befba1 scripts/ci: update gitlab-runner playbook to use latest runner
We were using quite and old runner on our machines and running into
issues with stalling jobs. Gitlab in the meantime now reliably provide
the latest packaged versions of the runner under a stable URL. This
update:

  - creates a per-arch subdir for builds
  - switches from binary tarballs to deb packages
  - re-uses the same binary for the secondary runner
  - updates distro check for second to 22.04

Note this script isn't fully idempotent as we end up accumulating
runners especially during testing. However we also want to be able to
run twice with different GitLab keys (e.g. project and personal) so I
think we just have to be mindful of that during testing.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230124180127.1881110-2-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Peter Maydell
026817fb69 Python
Bits and pieces, kibbles'n'bits
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Merge tag 'python-pull-request' of https://gitlab.com/jsnow/qemu into staging

Python

Bits and pieces, kibbles'n'bits

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# gpg: Signature made Wed 25 Jan 2023 02:32:34 GMT
# gpg:                using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* tag 'python-pull-request' of https://gitlab.com/jsnow/qemu:
  python/qemu/machine: use socketpair() for QMP by default
  python/qmp/legacy: make QEMUMonitorProtocol accept a socket
  python/qmp/protocol: add open_with_socket()
  python/qmp: increase read buffer size
  python/machine: Fix AF_UNIX path too long on macOS
  python: QEMUMachine: enable qmp accept timeout by default
  Fix some typos

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-01 16:15:56 +00:00
Marc-André Lureau
bd4c0ef409 python/qemu/machine: use socketpair() for QMP by default
When no monitor address is given, establish the QMP communication through
a socketpair() (API is also supported on Windows since Python 3.5)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20230111080101.969151-4-marcandre.lureau@redhat.com
[Resolved conflicts, fixed typing error. --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2023-01-24 13:37:13 -05:00
Marc-André Lureau
603a3bad4b python/qmp/legacy: make QEMUMonitorProtocol accept a socket
Teach QEMUMonitorProtocol to accept an exisiting socket.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20230111080101.969151-3-marcandre.lureau@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2023-01-24 13:37:13 -05:00
Marc-André Lureau
a3cfea92e2 python/qmp/protocol: add open_with_socket()
Instead of listening for incoming connections with a SocketAddr, add a
new method open_with_socket() that accepts an existing socket.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20230111080101.969151-2-marcandre.lureau@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2023-01-24 13:37:13 -05:00
Maksim Davydov
166464c6ce python/qmp: increase read buffer size
Current 256KB is not enough for some real cases. As a possible solution
limit can be chosen to be the same as libvirt (10MB)

Signed-off-by: Maksim Davydov <davydov-max@yandex-team.ru>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20230112152805.33109-3-davydov-max@yandex-team.ru
Signed-off-by: John Snow <jsnow@redhat.com>
2023-01-24 13:37:13 -05:00
Peter Delevoryas
f9922937d1 python/machine: Fix AF_UNIX path too long on macOS
On macOS, private $TMPDIR's are the default. These $TMPDIR's are
generated from a user's unix UID and UUID [1], which can create a
relatively long path:

    /var/folders/d7/rz20f6hd709c1ty8f6_6y_z40000gn/T/

QEMU's avocado tests create a temporary directory prefixed by
"avo_qemu_sock_", and create QMP sockets within _that_ as well.
The QMP socket is unnecessarily long, because a temporary directory
is created for every QEMUMachine object.

    /avo_qemu_sock_uh3w_dgc/qemu-37331-10bacf110-monitor.sock

The path limit for unix sockets on macOS is 104: [2]

    /*
     * [XSI] Definitions for UNIX IPC domain.
     */
    struct  sockaddr_un {
        unsigned char   sun_len;        /* sockaddr len including null */
        sa_family_t     sun_family;     /* [XSI] AF_UNIX */
        char            sun_path[104];  /* [XSI] path name (gag) */
    };

This results in avocado tests failing on macOS because the QMP unix
socket can't be created, because the path is too long:

    ERROR| Failed to establish connection: OSError: AF_UNIX path too long

This change resolves by reducing the size of the socket directory prefix
and the suffix on the QMP and console socket names.

The result is paths like this:

    pdel@pdel-mbp:/var/folders/d7/rz20f6hd709c1ty8f6_6y_z40000gn/T
    $ tree qemu*
    qemu_df4evjeq
    qemu_jbxel3gy
    qemu_ml9s_gg7
    qemu_oc7h7f3u
    qemu_oqb1yf97
    ├── 10a004050.con
    └── 10a004050.qmp

[1] https://apple.stackexchange.com/questions/353832/why-is-mac-osx-temp-directory-in-weird-path
[2] /Library/Developer/CommandLineTools/SDKs/MacOSX12.3.sdk/usr/include/sys/un.h

Signed-off-by: Peter Delevoryas <peter@pjd.dev>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230110082930.42129-2-peter@pjd.dev
Signed-off-by: John Snow <jsnow@redhat.com>
2023-01-24 13:37:13 -05:00
Vladimir Sementsov-Ogievskiy
ada73a492c python: QEMUMachine: enable qmp accept timeout by default
I've spent much time trying to debug hanging pipeline in gitlab. I
started from and idea that I have problem in code in my series (which
has some timeouts). Finally I found that the problem is that I've used
QEMUMachine class directly to avoid qtest, and didn't add necessary
arguments. Qemu fails and we wait for qmp accept endlessly. In gitlab
it's just stopped by timeout (one hour) with no sign of what's going
wrong.

With timeout enabled, gitlab don't wait for an hour and prints all
needed information.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-Id: <20220624195252.175249-1-vsementsov@yandex-team.ru>
[Fixed typing. --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2023-01-24 13:37:12 -05:00
Dongdong Zhang
af76484e54 Fix some typos
Fix some typos in 'python' directory.

Signed-off-by: Dongdong Zhang <zhangdongdong@eswincomputing.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20221130015358.6998-2-zhangdongdong@eswincomputing.com
[Fixed additional typo spotted by Max Filippov. --js]
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
2023-01-24 13:37:12 -05:00
Peter Maydell
13356edb87 Pull request
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Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging

Pull request

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# gpg: Signature made Mon 23 Jan 2023 20:04:13 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

* tag 'block-pull-request' of https://gitlab.com/stefanha/qemu:
  block/blkio: Fix inclusion of required headers
  virtio-blk: simplify virtio_blk_dma_restart_cb()
  util/aio: Defer disabling poll mode as long as possible

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-24 09:45:33 +00:00
Peter Krempa
4f01a9bb04 block/blkio: Fix inclusion of required headers
After recent header file inclusion rework the build fails when the blkio
module is enabled:

../block/blkio.c: In function ‘blkio_detach_aio_context’:
../block/blkio.c:321:24: error: implicit declaration of function ‘bdrv_get_aio_context’; did you mean ‘qemu_get_aio_context’? [-Werror=implicit-function-declaration]
  321 |     aio_set_fd_handler(bdrv_get_aio_context(bs),
      |                        ^~~~~~~~~~~~~~~~~~~~
      |                        qemu_get_aio_context
../block/blkio.c:321:24: error: nested extern declaration of ‘bdrv_get_aio_context’ [-Werror=nested-externs]
../block/blkio.c:321:24: error: passing argument 1 of ‘aio_set_fd_handler’ makes pointer from integer without a cast [-Werror=int-conversion]
  321 |     aio_set_fd_handler(bdrv_get_aio_context(bs),
      |                        ^~~~~~~~~~~~~~~~~~~~~~~~
      |                        |
      |                        int
In file included from /home/pipo/git/qemu.git/include/qemu/job.h:33,
                 from /home/pipo/git/qemu.git/include/block/blockjob.h:30,
                 from /home/pipo/git/qemu.git/include/block/block_int-global-state.h:28,
                 from /home/pipo/git/qemu.git/include/block/block_int.h:27,
                 from ../block/blkio.c:13:
/home/pipo/git/qemu.git/include/block/aio.h:476:37: note: expected ‘AioContext *’ but argument is of type ‘int’
  476 | void aio_set_fd_handler(AioContext *ctx,
      |                         ~~~~~~~~~~~~^~~
../block/blkio.c: In function ‘blkio_file_open’:
../block/blkio.c:821:34: error: passing argument 2 of ‘blkio_attach_aio_context’ makes pointer from integer without a cast [-Werror=int-conversion]
  821 |     blkio_attach_aio_context(bs, bdrv_get_aio_context(bs));
      |                                  ^~~~~~~~~~~~~~~~~~~~~~~~
      |                                  |
      |                                  int

Fix it by including 'block/block-io.h' which contains the required
declarations.

Fixes: e2c1c34f13
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 2bc956011404a1ab03342aefde0087b5b4762562.1674477350.git.pkrempa@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-01-23 15:02:07 -05:00
Stefan Hajnoczi
a937f8e857 virtio-blk: simplify virtio_blk_dma_restart_cb()
virtio_blk_dma_restart_cb() is tricky because the BH must deal with
virtio_blk_data_plane_start()/virtio_blk_data_plane_stop() being called.

There are two issues with the code:

1. virtio_blk_realize() should use qdev_add_vm_change_state_handler()
   instead of qemu_add_vm_change_state_handler(). This ensures the
   ordering with virtio_init()'s vm change state handler that calls
   virtio_blk_data_plane_start()/virtio_blk_data_plane_stop() is
   well-defined. Then blk's AioContext is guaranteed to be up-to-date in
   virtio_blk_dma_restart_cb() and it's no longer necessary to have a
   special case for virtio_blk_data_plane_start().

2. Only blk_drain() waits for virtio_blk_dma_restart_cb()'s
   blk_inc_in_flight() to be decremented. The bdrv_drain() family of
   functions do not wait for BlockBackend's in_flight counter to reach
   zero. virtio_blk_data_plane_stop() relies on blk_set_aio_context()'s
   implicit drain, but that's a bdrv_drain() and not a blk_drain().
   Note that virtio_blk_reset() already correctly relies on blk_drain().
   If virtio_blk_data_plane_stop() switches to blk_drain() then we can
   properly wait for pending virtio_blk_dma_restart_bh() calls.

Once these issues are taken care of the code becomes simpler. This
change is in preparation for multiple IOThreads in virtio-blk where we
need to clean up the multi-threading behavior.

I ran the reproducer from commit 49b44549ac ("virtio-blk: On restart,
process queued requests in the proper context") to check that there is
no regression.

Cc: Sergio Lopez <slp@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-id: 20221102182337.252202-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-01-23 15:01:23 -05:00
Chao Gao
816a430c51 util/aio: Defer disabling poll mode as long as possible
When we measure FIO read performance (cache=writethrough, bs=4k,
iodepth=64) in VMs, ~80K/s notifications (e.g., EPT_MISCONFIG) are observed
from guest to qemu.

It turns out those frequent notificatons are caused by interference from
worker threads. Worker threads queue bottom halves after completing IO
requests.  Pending bottom halves may lead to either aio_compute_timeout()
zeros timeout and pass it to try_poll_mode() or run_poll_handlers() returns
no progress after noticing pending aio_notify() events. Both cause
run_poll_handlers() to call poll_set_started(false) to disable poll mode.
However, for both cases, as timeout is already zeroed, the event loop
(i.e., aio_poll()) just processes bottom halves and then starts the next
event loop iteration. So, disabling poll mode has no value but leads to
unnecessary notifications from guest.

To minimize unnecessary notifications from guest, defer disabling poll
mode to when the event loop is about to be blocked.

With this patch applied, FIO seq-read performance (bs=4k, iodepth=64,
cache=writethrough) in VMs increases from 330K/s to 413K/s IOPS.

Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Chao Gao <chao.gao@intel.com>
Message-id: 20220710120849.63086-1-chao.gao@intel.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-01-23 15:01:22 -05:00
Peter Maydell
00b1faea41 target-arm queue:
* Widen cnthctl_el2 to uint64_t
  * Unify checking for M Main Extension in MRS/MSR
  * bitbang_i2c, versatile_i2c: code cleanups
  * SME: refactor SME SM/ZA handling
  * Fix physical address resolution for MTE
  * Fix in_debug path in S1_ptw_translate
  * Don't set EXC_RETURN.ES if Security Extension not present
  * Implement DBGCLAIM registers
  * Provide stubs for more external debug registers
  * Look up ARMCPRegInfo at runtime, not translate time
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Merge tag 'pull-target-arm-20230123' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * Widen cnthctl_el2 to uint64_t
 * Unify checking for M Main Extension in MRS/MSR
 * bitbang_i2c, versatile_i2c: code cleanups
 * SME: refactor SME SM/ZA handling
 * Fix physical address resolution for MTE
 * Fix in_debug path in S1_ptw_translate
 * Don't set EXC_RETURN.ES if Security Extension not present
 * Implement DBGCLAIM registers
 * Provide stubs for more external debug registers
 * Look up ARMCPRegInfo at runtime, not translate time

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# gpg: Signature made Mon 23 Jan 2023 13:35:00 GMT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* tag 'pull-target-arm-20230123' of https://git.linaro.org/people/pmaydell/qemu-arm: (26 commits)
  target/arm: Look up ARMCPRegInfo at runtime
  target/arm: Reorg do_coproc_insn
  target/arm: provide stubs for more external debug registers
  target/arm: implement DBGCLAIM registers
  target/arm: Don't set EXC_RETURN.ES if Security Extension not present
  target/arm: Fix in_debug path in S1_ptw_translate
  target/arm: Fix physical address resolution for MTE
  target/arm/sme: Unify set_pstate() SM/ZA helpers as set_svcr()
  target/arm/sme: Rebuild hflags in aarch64_set_svcr()
  target/arm/sme: Reset ZA state in aarch64_set_svcr()
  target/arm/sme: Reset SVE state in aarch64_set_svcr()
  target/arm/sme: Introduce aarch64_set_svcr()
  target/arm/sme: Rebuild hflags in set_pstate() helpers
  target/arm/sme: Reorg SME access handling in handle_msr_i()
  hw/i2c/versatile_i2c: Rename versatile_i2c -> arm_sbcon_i2c
  hw/i2c/versatile_i2c: Use ARM_SBCON_I2C() macro
  hw/i2c/versatile_i2c: Replace TYPE_VERSATILE_I2C -> TYPE_ARM_SBCON_I2C
  hw/i2c/versatile_i2c: Replace VersatileI2CState -> ArmSbconI2CState
  hw/i2c/versatile_i2c: Drop useless casts from void * to pointer
  hw/i2c/bitbang_i2c: Convert DPRINTF() to trace events
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:40:28 +00:00
Richard Henderson
3b07a936d3 target/arm: Look up ARMCPRegInfo at runtime
Do not encode the pointer as a constant in the opcode stream.
This pointer is specific to the cpu that first generated the
translation, which runs into problems with both hot-pluggable
cpus and user-only threads, as cpus are removed. It's also a
potential correctness issue in the theoretical case of a
slightly-heterogenous system, because if CPU 0 generates a
TB and then CPU 1 executes it, CPU 1 will end up using CPU 0's
hash table, which might have a wrong set of registers in it.
(All our current systems are either completely homogenous,
M-profile, or have CPUs sufficiently different that they
wouldn't be sharing TBs anyway because the differences would
show up in the TB flags, so the correctness issue is only
theoretical, not practical.)

Perform the lookup in either helper_access_check_cp_reg,
or a new helper_lookup_cp_reg.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230106194451.1213153-3-richard.henderson@linaro.org
[PMM: added note in commit message about correctness issue]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Richard Henderson
0371fa90a1 target/arm: Reorg do_coproc_insn
Move the ri == NULL case to the top of the function and return.
This allows the else to be removed and the code unindented.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20230106194451.1213153-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Evgeny Iakovlev
b3aa2f2128 target/arm: provide stubs for more external debug registers
Qemu doesn't implement Debug Communication Channel, as well as the rest
of external debug interface. However, Microsoft Hyper-V in tries to
access some of those registers during an EL2 context switch.

Since there is no architectural way to not advertise support for external
debug, provide RAZ/WI stubs for OSDTRRX_EL1, OSDTRTX_EL1 and OSECCR_EL1
registers in the same way the rest of DCM is currently done. Do account
for access traps though with access_tda.

Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230120155929.32384-3-eiakovlev@linux.microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Evgeny Iakovlev
5fc83f1128 target/arm: implement DBGCLAIM registers
The architecture does not define any functionality for the CLAIM tag bits.
So we will just keep the raw bits, as per spec.

Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230120155929.32384-2-eiakovlev@linux.microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Peter Maydell
1e5da7e553 target/arm: Don't set EXC_RETURN.ES if Security Extension not present
In v7m_exception_taken(), for v8M we set the EXC_RETURN.ES bit if
either the exception targets Secure or if the CPU doesn't implement
the Security Extension.  This is incorrect: the v8M Arm ARM specifies
that the ES bit should be RES0 if the Security Extension is not
implemented, and the pseudocode agrees.

Remove the incorrect condition, so that we leave the ES bit 0
if the Security Extension isn't implemented.

This doesn't have any guest-visible effects for our current set of
emulated CPUs, because all our v8M CPUs implement the Security
Extension; but it's worth fixing in case we add a v8M CPU without
the extension in future.

Reported-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-23 13:32:38 +00:00
Richard Henderson
4a1103afb1 target/arm: Fix in_debug path in S1_ptw_translate
During the conversion, the test against get_phys_addr_lpae got inverted,
meaning that successful translations went to the 'failed' label.

Cc: qemu-stable@nongnu.org
Fixes: f3639a64f6 ("target/arm: Use softmmu tlbs for page table walking")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1417
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230114054605.2977022-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Richard Henderson
28fb921f02 target/arm: Fix physical address resolution for MTE
Conversion to probe_access_full missed applying the page offset.

Fixes: b8967ddf ("target/arm: Use probe_access_full for MTE")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1416
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230114031213.2970349-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Richard Henderson
5c922ec5b1 target/arm/sme: Unify set_pstate() SM/ZA helpers as set_svcr()
Unify the two helper_set_pstate_{sm,za} in this function.
Do not call helper_* functions from svcr_write.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230112102436.1913-8-philmd@linaro.org
Message-Id: <20230112004322.161330-1-richard.henderson@linaro.org>
[PMD: Split patch in multiple tiny steps]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Richard Henderson
f431855714 target/arm/sme: Rebuild hflags in aarch64_set_svcr()
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230112102436.1913-7-philmd@linaro.org
Message-Id: <20230112004322.161330-1-richard.henderson@linaro.org>
[PMD: Split patch in multiple tiny steps]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Richard Henderson
fccb49182e target/arm/sme: Reset ZA state in aarch64_set_svcr()
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230112102436.1913-6-philmd@linaro.org
Message-Id: <20230112004322.161330-1-richard.henderson@linaro.org>
[PMD: Split patch in multiple tiny steps]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Richard Henderson
7f2a01e736 target/arm/sme: Reset SVE state in aarch64_set_svcr()
Move arm_reset_sve_state() calls to aarch64_set_svcr().

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230112102436.1913-5-philmd@linaro.org
Message-Id: <20230112004322.161330-1-richard.henderson@linaro.org>
[PMD: Split patch in multiple tiny steps]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Richard Henderson
2a8af38259 target/arm/sme: Introduce aarch64_set_svcr()
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230112102436.1913-4-philmd@linaro.org
Message-Id: <20230112004322.161330-1-richard.henderson@linaro.org>
[PMD: Split patch in multiple tiny steps]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Richard Henderson
3c9ee54894 target/arm/sme: Rebuild hflags in set_pstate() helpers
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230112102436.1913-3-philmd@linaro.org
Message-Id: <20230112004322.161330-1-richard.henderson@linaro.org>
[PMD: Split patch in multiple tiny steps]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Richard Henderson
535ca76425 target/arm/sme: Reorg SME access handling in handle_msr_i()
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230112102436.1913-2-philmd@linaro.org
Message-Id: <20230112004322.161330-1-richard.henderson@linaro.org>
[PMD: Split patch in multiple tiny steps]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé
500a64d82b hw/i2c/versatile_i2c: Rename versatile_i2c -> arm_sbcon_i2c
This device model started with the Versatile board, named
TYPE_VERSATILE_I2C, then ended up renamed TYPE_ARM_SBCON_I2C
as per the official "ARM SBCon two-wire serial bus interface"
description from:
https://developer.arm.com/documentation/dui0440/b/programmer-s-reference/two-wire-serial-bus-interface--sbcon

Use the latter name as a better description.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230110082508.24038-6-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé
f6cf2eb8ec hw/i2c/versatile_i2c: Use ARM_SBCON_I2C() macro
ARM_SBCON_I2C() macro and ArmSbconI2CState typedef are
already declared via the QOM DECLARE_INSTANCE_CHECKER()
macro in "hw/i2c/arm_sbcon_i2c.h". Drop the VERSATILE_I2C
declarations from versatile_i2c.c.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230110082508.24038-5-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé
550da1cc22 hw/i2c/versatile_i2c: Replace TYPE_VERSATILE_I2C -> TYPE_ARM_SBCON_I2C
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230110082508.24038-4-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé
92518611ac hw/i2c/versatile_i2c: Replace VersatileI2CState -> ArmSbconI2CState
In order to rename TYPE_VERSATILE_I2C as TYPE_ARM_SBCON_I2C
(the formal ARM naming), start renaming its state.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230110082508.24038-3-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00