libblkio (https://gitlab.com/libblkio/libblkio/) is a library for
high-performance disk I/O. It currently supports io_uring,
virtio-blk-vhost-user, and virtio-blk-vhost-vdpa with additional drivers
under development.
One of the reasons for developing libblkio is that other applications
besides QEMU can use it. This will be particularly useful for
virtio-blk-vhost-user which applications may wish to use for connecting
to qemu-storage-daemon.
libblkio also gives us an opportunity to develop in Rust behind a C API
that is easy to consume from QEMU.
This commit adds io_uring, nvme-io_uring, virtio-blk-vhost-user, and
virtio-blk-vhost-vdpa BlockDrivers to QEMU using libblkio. It will be
easy to add other libblkio drivers since they will share the majority of
code.
For now I/O buffers are copied through bounce buffers if the libblkio
driver requires it. Later commits add an optimization for
pre-registering guest RAM to avoid bounce buffers.
The syntax is:
--blockdev io_uring,node-name=drive0,filename=test.img,readonly=on|off,cache.direct=on|off
--blockdev nvme-io_uring,node-name=drive0,filename=/dev/ng0n1,readonly=on|off,cache.direct=on
--blockdev virtio-blk-vhost-vdpa,node-name=drive0,path=/dev/vdpa...,readonly=on|off,cache.direct=on
--blockdev virtio-blk-vhost-user,node-name=drive0,path=vhost-user-blk.sock,readonly=on|off,cache.direct=on
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20221013185908.1297568-3-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This is a leftover from before the recent function merge and
refactoring patches:
As these functions do not return control to the caller in
between, it is not necessary to duplicate strings passed to them.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <0f80141cde3904ed0591354059da49d1d60bcdbc.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 2 functions into a single function
v9fs_tunlinkat() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <1dea593edd464908d92501933c068388c01f1744.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 2 functions into a single function
v9fs_tlink() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <cb4d42203e1e4e6027df4924bbe4bdbc002f668b.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 2 functions into a single function
v9fs_tsymlink() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <563f3ad04fe596ce0ae1e2654d1d08237f18c830.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 2 functions into a single function
v9fs_tlcreate() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <4c01b2caa5f5b54a2020fc92701deadd2abf0571.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 2 functions into a single function
v9fs_tmkdir() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <b87b2c972921df980440ff5b2d3e6bb8163d6551.1664917004.git.qemu_oss@crudebyte.com>
Use declarative function arguments for function v9fs_tflush().
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <91b7b154298c500d100b05137146c2905c3acdec.1664917004.git.qemu_oss@crudebyte.com>
Now as twrite() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <7f280ec6a1f9d8afed46567a796562c4dc28afa9.1664917004.git.qemu_oss@crudebyte.com>
Use declarative function arguments for function v9fs_twrite().
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <be0326e2d9ab66f68c06b1766ddf103849d570b4.1664917004.git.qemu_oss@crudebyte.com>
Now as tlopen() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <f74b6153e079fc7a340e5cb575ee32e0fe1e0ae6.1664917004.git.qemu_oss@crudebyte.com>
Use declarative function arguments for function v9fs_tlopen().
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <765ab515353c56f88f0a163631f626a44e9565d6.1664917004.git.qemu_oss@crudebyte.com>
Now as treaddir() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <7cec6f2c7011a481806c34908893b7282702a7a6.1664917004.git.qemu_oss@crudebyte.com>
Use declarative function arguments for function v9fs_treaddir().
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <a66aae4ceb19ec12d245b8c7f33a639584c8e272.1664917004.git.qemu_oss@crudebyte.com>
Now as tgetattr() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <60c6a083f320b86f3172951445df7bbc895932e2.1664917004.git.qemu_oss@crudebyte.com>
Use declarative function arguments for function v9fs_tgetattr().
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <d340a91be96fbfecfb8dacdd7558223b3c0d0e2c.1664917004.git.qemu_oss@crudebyte.com>
Now as tattach() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <9b50e5b89a0072e84a9191d18c19a53546a28bba.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 3 functions into a single function
v9fs_tattach() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <a6756b30bf2a1b25729c5bbabd1c9534a8f20d6f.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify functions v9fs_tversion() and do_version()
into a single function v9fs_tversion() by using a declarative function
arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <2d253491aaffd267ec295f056dda47456692cd0c.1664917004.git.qemu_oss@crudebyte.com>
Now as twalk() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <8b9d3c656ad43b6c953d6bdacd8d9f4c8e599b2a.1664917004.git.qemu_oss@crudebyte.com>
Introduce declarative function calls.
There are currently 4 different functions for sending a 9p 'Twalk'
request: v9fs_twalk(), do_walk(), do_walk_rqids() and
do_walk_expect_error(). They are all doing the same thing, just in a
slightly different way and with slightly different function arguments.
Merge those 4 functions into a single function by using a struct for
function call arguments and use designated initializers when calling
this function to turn usage into a declarative approach, which is
better readable and easier to maintain.
Also move private functions genfid(), split() and split_free() from
virtio-9p-test.c to virtio-9p-client.c.
Based-on: <E1odrya-0004Fv-97@lizzy.crudebyte.com>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <607969dbfbc63c1be008df9131133711b046e979.1664917004.git.qemu_oss@crudebyte.com>
This patch is pure refactoring, it does not change behaviour.
virtio-9p-test.c grew to 1657 lines. Let's split this file up between
actual 9p test cases vs. 9p test client, to make it easier to
concentrate on the actual 9p tests.
Move the 9p test client code to a new unit virtio-9p-client.c, which
are basically all functions and types prefixed with v9fs_* already.
Note that some client wrapper functions (do_*) are preserved in
virtio-9p-test.c, simply because these wrapper functions are going to
be wiped with subsequent patches anyway.
As the global QGuestAllocator variable is moved to virtio-9p-client.c,
add a new function v9fs_set_allocator() to be used by virtio-9p-test.c
instead of fiddling with a global variable across units and libraries.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <E1odrya-0004Fv-97@lizzy.crudebyte.com>
When tmpfs is NULL, a build warning is seen with GCC 9.3.0.
It's strange that GCC 11.2.0 on Ubuntu 22.04 does not catch this,
neither did the QEMU CI.
While we are here, improve the error message as well.
Reported-by: Shengjiang Wu <shengjiang.wu@windriver.com>
Fixes: e6efe236c1 ("tests/qtest: vhost-user-test: Avoid using hardcoded /tmp")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221017132023.2228641-2-bmeng.cn@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
When tmpfs is NULL, a build warning is seen with GCC 9.3.0.
It's strange that GCC 11.2.0 on Ubuntu 22.04 does not catch this,
neither did the QEMU CI.
While we are here, improve the error message as well.
Reported-by: Shengjiang Wu <shengjiang.wu@windriver.com>
Fixes: e5553c1b8d ("tests/qtest: migration-test: Avoid using hardcoded /tmp")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221017132023.2228641-1-bmeng.cn@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* New VNC qtest
* Fixes related to temporary file handling in the tests
* Use signal() instead of sigaction() since the latter does not work on Windows
* Some other small clean-ups
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Merge tag 'pull-request-2022-10-12' of https://gitlab.com/thuth/qemu into staging
* Rework of qtests to support hot plugging tests on q35
* New VNC qtest
* Fixes related to temporary file handling in the tests
* Use signal() instead of sigaction() since the latter does not work on Windows
* Some other small clean-ups
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# gpg: Signature made Wed 12 Oct 2022 10:29:41 EDT
# 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
* tag 'pull-request-2022-10-12' of https://gitlab.com/thuth/qemu:
tests/unit/test-image-locking: Fix handling of temporary files
tests/qtest: libqtest: Install signal handler via signal()
tests/qtest: migration-test: Avoid using hardcoded /tmp
qtest: start a VNC test
tests/avocado: Add missing require_netdev('user') checks
tests/x86: Add 'q35' machine type to ivshmem-test
tests/x86: Add 'q35' machine type to drive_del-test
tests/x86: replace snprint() by g_strdup_printf() in drive_del-test
tests/x86: Fix comment typo in drive_del-test
tests/x86: Add 'q35' machine type to hotplug hd-geo-test
tests/x86: Add 'q35' machine type to override-tests in hd-geo-test
tests/x86: Refactor hot unplug hd-geo-test
tests/x86: Add subtest with 'q35' machine type to device-plug-test
tests/x86: add helper qtest_qmp_device_del_send()
tests/migration: remove the unused local variable
qtest: "-display none" is set in qtest_init()
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
At present the codes uses sigaction() to install signal handler with
a flag SA_RESETHAND. Such usage can be covered by the signal() API
that is a simplified interface to the general sigaction() facility.
Update to use signal() to install the signal handler, as it is
available on Windows which we are going to support.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221006151927.2079583-11-bmeng.cn@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This case was written to use hardcoded /tmp directory for temporary
files. Update to use g_dir_make_tmp() for a portable implementation.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221006151927.2079583-5-bmeng.cn@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This is some of the simplest test we could perform, it simply connects
to the VNC server via passed-in socket FDs and checks the connection can
be established.
Another series will make this test work on Windows as well.
As always, more tests can be added later! :)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20221006130513.2683873-1-marcandre.lureau@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Configure pci bridge setting to test ivshmem on 'q35'.
Signed-off-by: Michael Labiuk <michael.labiuk@virtuozzo.com>
Message-Id: <20220929223547.1429580-10-michael.labiuk@virtuozzo.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Configure pci bridge setting to run tests on 'q35' machine type.
Signed-off-by: Michael Labiuk <michael.labiuk@virtuozzo.com>
Message-Id: <20220929223547.1429580-9-michael.labiuk@virtuozzo.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Using g_autofree char* and g_strdup_printf(...) instead of ugly
snprintf on stack array.
Signed-off-by: Michael Labiuk <michael.labiuk@virtuozzo.com>
Message-Id: <20220929223547.1429580-8-michael.labiuk@virtuozzo.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Labiuk <michael.labiuk@virtuozzo.com>
Message-Id: <20220929223547.1429580-7-michael.labiuk@virtuozzo.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Add pci bridge setting to test hotplug.
Duplicate tests for plugging scsi and virtio devices for q35 machine type.
Signed-off-by: Michael Labiuk <michael.labiuk@virtuozzo.com>
Message-Id: <20220929223547.1429580-6-michael.labiuk@virtuozzo.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Labiuk <michael.labiuk@virtuozzo.com>
Message-Id: <20220929223547.1429580-5-michael.labiuk@virtuozzo.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Moving common code to function.
Signed-off-by: Michael Labiuk <michael.labiuk@virtuozzo.com>
Message-Id: <20220929223547.1429580-4-michael.labiuk@virtuozzo.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Configure pci bridge setting to plug pci device and unplug.
Signed-off-by: Michael Labiuk <michael.labiuk@virtuozzo.com>
Message-Id: <20220929223547.1429580-3-michael.labiuk@virtuozzo.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Move sending 'device_del' command to separate function.
Function can be used in case of addition action is needed to start
actual removing device after sending command.
Signed-off-by: Michael Labiuk <michael.labiuk@virtuozzo.com>
Message-Id: <20220929223547.1429580-2-michael.labiuk@virtuozzo.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
[thuth: Fixed typo]
Signed-off-by: Thomas Huth <thuth@redhat.com>
So we don't need to set anywhere else.
Signed-off-by: Juan Quintela <quintela@redhat.com>
[thuth: Drop changes in tests/qtest/fuzz/ since the fuzzers still need this]
Message-Id: <20220902165126.1482-2-quintela@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Expected change:
- Name (_SUN, 0x0X) // _SUN: Slot User Number
Name (_ADR, 0xY) // _ADR: Address
...
+ Name (_SUN, 0xX) // _SUN: Slot User Number
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20220701133515.137890-14-imammedo@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20220701133515.137890-12-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20220701133515.137890-9-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20220701133515.137890-2-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This new command lists all the instances of VirtIODevices with
their canonical QOM path and name.
[Jonah: @virtio_list duplicates information that already exists in
the QOM composition tree. However, extracting necessary information
from this tree seems to be a bit convoluted.
Instead, we still create our own list of realized virtio devices
but use @qmp_qom_get with the device's canonical QOM path to confirm
that the device exists and is realized. If the device exists but
is actually not realized, then we remove it from our list (for
synchronicity to the QOM composition tree).
Also, the QMP command @x-query-virtio is redundant as @qom-list
and @qom-get are sufficient to search '/machine/' for realized
virtio devices. However, @x-query-virtio is much more convenient
in listing realized virtio devices.]
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jonah Palmer <jonah.palmer@oracle.com>
Message-Id: <1660220684-24909-2-git-send-email-jonah.palmer@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
