History log of /openbmc/qemu/subprojects/libvduse/libvduse.c (Results 1 – 14 of 14)
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Revision tags: v9.2.0, v9.1.2, v9.1.1, v9.1.0
# 32bfaa4e 16-Oct-2023 Stefan Hajnoczi <stefanha@redhat.com>

Merge tag 'pull-shadow-2023-10-12' of https://repo.or.cz/qemu/armbru into staging

-Wshadow=local patches for 2023-10-12

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Merge tag 'pull-shadow-2023-10-12' of https://repo.or.cz/qemu/armbru into staging

-Wshadow=local patches for 2023-10-12

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# gpg: Signature made Thu 12 Oct 2023 10:55:23 EDT
# gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg: issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653

* tag 'pull-shadow-2023-10-12' of https://repo.or.cz/qemu/armbru:
target/i386: fix shadowed variable pasto
contrib/vhost-user-gpu: Fix compiler warning when compiling with -Wshadow
hw/virtio/virtio-gpu: Fix compiler warning when compiling with -Wshadow
libvhost-user: Fix compiler warning with -Wshadow=local
libvduse: Fix compiler warning with -Wshadow=local

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

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# 3cc72cdb 06-Oct-2023 Thomas Huth <thuth@redhat.com>

libvduse: Fix compiler warning with -Wshadow=local

No need to declare a new variable with the same name here,
we can simple re-use the one from the top of the function.
With this change, the file no

libvduse: Fix compiler warning with -Wshadow=local

No need to declare a new variable with the same name here,
we can simple re-use the one from the top of the function.
With this change, the file now compiles fine with -Wshadow=local.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20231006120819.480792-1-thuth@redhat.com>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

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Revision tags: v8.0.0
# 3db29dca 12-Jan-2023 Peter Maydell <peter.maydell@linaro.org>

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* Atomic memslot updates for KVM (Emanuele, David)
* libvhost-user/libvduse warnings fixes (Marcel)
* i386 TCG fixes (Joe, my

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* Atomic memslot updates for KVM (Emanuele, David)
* libvhost-user/libvduse warnings fixes (Marcel)
* i386 TCG fixes (Joe, myself)
* Remove compilation errors when -Werror=maybe-uninitialized (Eric)
* fix GLIB_VERSION for cross-compilation (Paolo)

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# gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
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# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (29 commits)
configure: remove backwards-compatibility code
target/i386: fix operand size of unary SSE operations
libvduse: Add extra compiler warnings
libvhost-user: Add extra compiler warnings
libvhost-user: Fix assignment in vring_set_avail_event
libvduse: Fix assignment in vring_set_avail_event
libvduse: Switch to unsigned int for inuse field in struct VduseVirtq
libvduse: Provide _GNU_SOURCE when compiling outside of QEMU
libvhost-user: Change dev->postcopy_ufd assignment to make it C90 compliant
libvhost-user: Declare uffdio_register early to make it C90 compliant
libvhost-user: Use unsigned int i for some for-loop iterations
libvhost-user: Cast rc variable to avoid compiler warning
libvhost-user: Replace typeof with __typeof__
libvhost-user: Provide _GNU_SOURCE when compiling outside of QEMU
hw/display: avoid creating empty loadable modules
enforce use of G_GNUC_PRINTF attributes
tests: add G_GNUC_PRINTF for various functions
util/error: add G_GNUC_PRINTF for various functions
tools/virtiofsd: add G_GNUC_PRINTF for logging functions
hw/xen: use G_GNUC_PRINTF/SCANF for various functions
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

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# 86e61e42 22-Dec-2022 Marcel Holtmann <marcel@holtmann.org>

libvduse: Fix assignment in vring_set_avail_event

Since the assignment is causing a compiler warning, fix it by using
memcpy instead.

CC libvduse.o
libvduse.c: In function ‘vring_set_avail_

libvduse: Fix assignment in vring_set_avail_event

Since the assignment is causing a compiler warning, fix it by using
memcpy instead.

CC libvduse.o
libvduse.c: In function ‘vring_set_avail_event’:
libvduse.c:603:7: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasin]
603 | *((uint16_t *)&vq->vring.used->ring[vq->vring.num]) = htole16(val);
| ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Suggested-by: Xie Yongji <xieyongji@bytedance.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <4a0fe2a6436464473119fdbf0bc4076b36fbb37f.1671741278.git.marcel@holtmann.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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# 85899f8e 22-Dec-2022 Marcel Holtmann <marcel@holtmann.org>

libvduse: Switch to unsigned int for inuse field in struct VduseVirtq

It seems there is no need to keep the inuse field signed and end up with
compiler warnings for sign-compare.

CC libvdus

libvduse: Switch to unsigned int for inuse field in struct VduseVirtq

It seems there is no need to keep the inuse field signed and end up with
compiler warnings for sign-compare.

CC libvduse.o
libvduse.c: In function ‘vduse_queue_pop’:
libvduse.c:789:19: error: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Werror=sign-compare]
789 | if (vq->inuse >= vq->vring.num) {
| ^~

Instead of casting the comparison to unsigned int, just make the inuse
field unsigned int in the fist place.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
Message-Id: <9fe3fd8b042e048bd04d506ca6e43d738b5c45b7.1671741278.git.marcel@holtmann.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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# 518ac428 22-Dec-2022 Marcel Holtmann <marcel@holtmann.org>

libvduse: Provide _GNU_SOURCE when compiling outside of QEMU

When the libvduse sources are used by another project, it can not be
guaranteed that _GNU_SOURCE is set by the build system. If it is for

libvduse: Provide _GNU_SOURCE when compiling outside of QEMU

When the libvduse sources are used by another project, it can not be
guaranteed that _GNU_SOURCE is set by the build system. If it is for
example not set, errors like this show up.

CC libvduse.o
libvduse.c: In function ‘vduse_log_get’:
libvduse.c:172:9: error: implicit declaration of function ‘ftruncate’; did you mean ‘strncat’? [-Werror=implicit-function-declaration]
172 | if (ftruncate(fd, size) == -1) {
| ^~~~~~~~~
| strncat

The simplest way to allow external complication of libvduse.[ch] by
setting _GNU_SOURCE if it is not already set by the build system.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Message-Id: <407f3665f0605df936e5bfe60831d180edfb8cca.1671741278.git.marcel@holtmann.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...


Revision tags: v7.2.0
# 57bc6e40 11-Nov-2022 Philippe Mathieu-Daudé <f4bug@amsat.org>

libvduse: Avoid warning about dangerous use of strncpy()

GCC 8 added a -Wstringop-truncation warning:

The -Wstringop-truncation warning added in GCC 8.0 via r254630 for
bug 81117 is specificall

libvduse: Avoid warning about dangerous use of strncpy()

GCC 8 added a -Wstringop-truncation warning:

The -Wstringop-truncation warning added in GCC 8.0 via r254630 for
bug 81117 is specifically intended to highlight likely unintended
uses of the strncpy function that truncate the terminating NUL
character from the source string.

Here the next line indeed unconditionally zeroes the last byte, but
1/ the buffer has been calloc'd, so we don't need to add an extra
byte, and 2/ we called vduse_name_is_invalid() which checked the
string length, so we can simply call strcpy().

This fixes when using gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0:

[42/666] Compiling C object subprojects/libvduse/libvduse.a.p/libvduse.c.o
FAILED: subprojects/libvduse/libvduse.a.p/libvduse.c.o
cc -m64 -mcx16 -Isubprojects/libvduse/libvduse.a.p -Isubprojects/libvduse -I../../subprojects/libvduse [...] -o subprojects/libvduse/libvduse.a.p/libvduse.c.o -c ../../subprojects/libvduse/libvduse.c
In file included from /usr/include/string.h:495,
from ../../subprojects/libvduse/libvduse.c:24:
In function ‘strncpy’,
inlined from ‘vduse_dev_create’ at ../../subprojects/libvduse/libvduse.c:1312:5:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:10: error: ‘__builtin_strncpy’ specified bound 256 equals destination size [-Werror=stringop-truncation]
106 | return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
ninja: build stopped: cannot make progress due to previous errors.

Fixes: d9cf16c0be ("libvduse: Replace strcpy() with strncpy()")
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Bin Meng <bmeng@tinylab.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221111124550.35753-1-philmd@linaro.org>

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# 0399521e 02-Aug-2022 Richard Henderson <richard.henderson@linaro.org>

Merge tag 'for-upstream' of git://repo.or.cz/qemu/kevin into staging

Block layer patches

- libvduse: Coverity fixes
- hd-geometry: Fix ignored bios-chs-trans setting
- io_uring: Fix compiler warnin

Merge tag 'for-upstream' of git://repo.or.cz/qemu/kevin into staging

Block layer patches

- libvduse: Coverity fixes
- hd-geometry: Fix ignored bios-chs-trans setting
- io_uring: Fix compiler warning (missing #include)
- main loop: add missing documentation links to GS/IO macros
- qemu-iotests: Discard stderr when probing devices

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# gpg: Signature made Tue 02 Aug 2022 06:35:49 AM PDT
# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]

* tag 'for-upstream' of git://repo.or.cz/qemu/kevin:
main loop: add missing documentation links to GS/IO macros
qemu-iotests: Discard stderr when probing devices
hw/block/hd-geometry: Do not override specified bios-chs-trans
libvduse: Pass positive value to strerror()
libvduse: Replace strcpy() with strncpy()
libvduse: Fix the incorrect function name
block/io_uring: add missing include file

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...


# 630179b7 06-Jul-2022 Xie Yongji <xieyongji@bytedance.com>

libvduse: Pass positive value to strerror()

The value passed to strerror() should be positive.
So let's fix it.

Fixes: Coverity CID 1490226, 1490223
Signed-off-by: Xie Yongji <xieyongji@bytedance.c

libvduse: Pass positive value to strerror()

The value passed to strerror() should be positive.
So let's fix it.

Fixes: Coverity CID 1490226, 1490223
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220706095624.328-4-xieyongji@bytedance.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...


# d9cf16c0 06-Jul-2022 Xie Yongji <xieyongji@bytedance.com>

libvduse: Replace strcpy() with strncpy()

Coverity reported a string overflow issue since we copied
"name" to "dev_config->name" without checking the length.
This should be a false positive since we

libvduse: Replace strcpy() with strncpy()

Coverity reported a string overflow issue since we copied
"name" to "dev_config->name" without checking the length.
This should be a false positive since we already checked
the length of "name" in vduse_name_is_invalid(). But anyway,
let's replace strcpy() with strncpy() (as a general library,
we'd like to minimize dependencies on other libraries, so we
didn't use g_strlcpy() here) to fix the coverity complaint.

Fixes: Coverity CID 1490224
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220706095624.328-3-xieyongji@bytedance.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...


# e7156ff7 06-Jul-2022 Xie Yongji <xieyongji@bytedance.com>

libvduse: Fix the incorrect function name

In vduse_name_is_valid(), we actually check whether
the name is invalid or not. So let's change the
function name to vduse_name_is_invalid() to match
the be

libvduse: Fix the incorrect function name

In vduse_name_is_valid(), we actually check whether
the name is invalid or not. So let's change the
function name to vduse_name_is_invalid() to match
the behavior.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220706095624.328-2-xieyongji@bytedance.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...


# 40d52249 24-Jun-2022 Richard Henderson <richard.henderson@linaro.org>

Merge tag 'for-upstream' of git://repo.or.cz/qemu/kevin into staging

Block layer patches

- Add vduse-blk export
- Dirty bitmaps: Fix and improve bitmap merge
- gluster: correctly set max_pdiscard
-

Merge tag 'for-upstream' of git://repo.or.cz/qemu/kevin into staging

Block layer patches

- Add vduse-blk export
- Dirty bitmaps: Fix and improve bitmap merge
- gluster: correctly set max_pdiscard
- rbd: report a better error when namespace does not exist
- aio_wait_kick: add missing memory barrier
- Code cleanups

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# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]

* tag 'for-upstream' of git://repo.or.cz/qemu/kevin:
vduse-blk: Add name option
vduse-blk: Add serial option
nbd: Drop dead code spotted by Coverity
aio_wait_kick: add missing memory barrier
block/gluster: correctly set max_pdiscard
block/rbd: report a better error when namespace does not exist
qsd: document vduse-blk exports
libvduse: Add support for reconnecting
vduse-blk: Add vduse-blk resize support
vduse-blk: Implement vduse-blk export
libvduse: Add VDUSE (vDPA Device in Userspace) library
linux-headers: Add vduse.h
block/export: Abstract out the logic of virtio-blk I/O process
block/export: Fix incorrect length passed to vu_queue_push()
block: Support passing NULL ops to blk_set_dev_ops()
block: simplify handling of try to merge different sized bitmaps
block: improve block_dirty_bitmap_merge(): don't allocate extra bitmap
block: block_dirty_bitmap_merge(): fix error path
block: get rid of blk->guest_block_size
block: drop unused bdrv_co_drain() API

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...


# d043e2db 23-May-2022 Xie Yongji <xieyongji@bytedance.com>

libvduse: Add support for reconnecting

To support reconnecting after restart or crash, VDUSE backend
might need to resubmit inflight I/Os. This stores the metadata
such as the index of inflight I/O'

libvduse: Add support for reconnecting

To support reconnecting after restart or crash, VDUSE backend
might need to resubmit inflight I/Os. This stores the metadata
such as the index of inflight I/O's descriptors to a shm file so
that VDUSE backend can restore them during reconnecting.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Message-Id: <20220523084611.91-9-xieyongji@bytedance.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

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# a6caeee8 23-May-2022 Xie Yongji <xieyongji@bytedance.com>

libvduse: Add VDUSE (vDPA Device in Userspace) library

VDUSE [1] is a linux framework that makes it possible to implement
software-emulated vDPA devices in userspace. This adds a library
as a subpro

libvduse: Add VDUSE (vDPA Device in Userspace) library

VDUSE [1] is a linux framework that makes it possible to implement
software-emulated vDPA devices in userspace. This adds a library
as a subproject to help implementing VDUSE backends in QEMU.

[1] https://www.kernel.org/doc/html/latest/userspace-api/vduse.html

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Message-Id: <20220523084611.91-6-xieyongji@bytedance.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...