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2022-11-27libvhost-user: Add format attribute to local function vu_panicStefan Weil via1-1/+12
Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220422070144.1043697-4-sw@weilnetz.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20221126152507.283271-5-sw@weilnetz.de>
2022-11-27libvhost-user: Fix two more format stringsStefan Weil via1-1/+2
This fix is required for 32 bit hosts. The bug was detected by CI for arm-linux, but is also relevant for i386-linux. Reported-by: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20221126152507.283271-4-sw@weilnetz.de>
2022-11-27libvhost-user: Fix format stringsStefan Weil via1-2/+2
Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220422070144.1043697-3-sw@weilnetz.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20221126152507.283271-3-sw@weilnetz.de>
2022-11-27libvhost-user: Fix wrong type of argument to formatting function (reported ↵Stefan Weil via1-1/+1
by LGTM) Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Stefan Weil <sw@weilnetz.de> Message-Id: <20220422070144.1043697-2-sw@weilnetz.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20221126152507.283271-2-sw@weilnetz.de>
2022-11-12libvduse: Avoid warning about dangerous use of strncpy()Philippe Mathieu-Daudé1-2/+2
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>
2022-08-02libvduse: Pass positive value to strerror()Xie Yongji1-2/+2
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>
2022-08-02libvduse: Replace strcpy() with strncpy()Xie Yongji1-1/+2
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>
2022-08-02libvduse: Fix the incorrect function nameXie Yongji1-3/+3
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>
2022-06-27libvhost-user: Fix VHOST_USER_ADD_MEM_REG replyKevin Wolf1-7/+1
With REPLY_NEEDED, libvhost-user sends both the acutal result and an additional ACK reply for VHOST_USER_ADD_MEM_REG. This is incorrect, the spec mandates that it behave the same with and without REPLY_NEEDED because it always sends a reply. Fixes: ec94c8e621de96c50c2d381c8c9ec94f5beec7c1 Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20220627134500.94842-4-kwolf@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-06-27libvhost-user: Fix VHOST_USER_GET_MAX_MEM_SLOTS replyKevin Wolf1-9/+2
With REPLY_NEEDED, libvhost-user sends both the acutal result and an additional ACK reply for VHOST_USER_GET_MAX_MEM_SLOTS. This is incorrect, the spec mandates that it behave the same with and without REPLY_NEEDED because it always sends a reply. Fixes: 6fb2e173d20c9bbb5466183d33a3ad7dcd0375fa Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20220627134500.94842-3-kwolf@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-06-24libvduse: Add support for reconnectingXie Yongji2-5/+242
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>
2022-06-24libvduse: Add VDUSE (vDPA Device in Userspace) libraryXie Yongji7-0/+1399
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>
2022-06-15vfio-user: build libraryJagannathan Raman1-0/+0
add the libvfio-user library as a submodule. build it as a meson subproject. libvfio-user is distributed with BSD 3-Clause license and json-c with MIT (Expat) license Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com> Signed-off-by: John G Johnson <john.g.johnson@oracle.com> Signed-off-by: Jagannathan Raman <jag.raman@oracle.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: c2adec87958b081d1dc8775d4aa05c897912f025.1655151679.git.jag.raman@oracle.com [Changed submodule URL to QEMU's libvfio-user mirror on GitLab. The QEMU project mirrors its dependencies so that it can provide full source code even in the event that its dependencies become unavailable. Note that the mirror repo is manually updated, so please contact me to make newer libvfio-user commits available. If I become a bottleneck we can set up a cronjob. Updated scripts/meson-buildoptions.sh to match the meson_options.txt change. Failure to do so can result in scripts/meson-buildoptions.sh being modified by the build system later on and you end up with a dirty working tree. --Stefan] Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2022-05-16libvhost-user: expose vu_request_to_stringAlex Bennée2-1/+10
This is useful for more human readable debug messages in vhost-user programs. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20220321153037.3622127-9-alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-05-04vhost-user: Don't pass file descriptor for VHOST_USER_REM_MEM_REGKevin Wolf1-4/+4
The spec clarifies now that QEMU should not send a file descriptor in a request to remove a memory region. Change it accordingly. For libvhost-user, this is a bug fix that makes it compatible with rust-vmm's implementation that doesn't send a file descriptor. Keep accepting, but ignoring a file descriptor for compatibility with older QEMU versions. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20220407133657.155281-4-kwolf@redhat.com> Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-05-04libvhost-user: Fix extra vu_add/rem_mem_reg replyKevin Wolf1-6/+3
Outside of postcopy mode, neither VHOST_USER_ADD_MEM_REG nor VHOST_USER_REM_MEM_REG are supposed to send a reply unless explicitly requested with the need_reply flag. Their current implementation always sends a reply, even if it isn't requested. This confuses the master because it will interpret the reply as a reply for the next message for which it actually expects a reply. need_reply is already handled correctly by vu_dispatch(), so just don't send a reply in the non-postcopy part of the message handler for these two commands. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20220407133657.155281-3-kwolf@redhat.com> Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-05-03Use QEMU_SANITIZE_THREADMarc-André Lureau1-0/+1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-04libvhost-user: Map shared RAM with MAP_NORESERVE to support virtio-mem with ↵David Hildenbrand1-5/+5
hugetlb For fd-based shared memory, MAP_NORESERVE is only effective for hugetlb, otherwise it's ignored. Older Linux versions that didn't support reservation of huge pages ignored MAP_NORESERVE completely. The first client to mmap a hugetlb fd without MAP_NORESERVE will trigger reservation of huge pages for the whole mmapped range. There are two cases to consider: 1) QEMU mapped RAM without MAP_NORESERVE We're not dealing with a sparse mapping, huge pages for the whole range have already been reserved by QEMU. An additional mmap() without MAP_NORESERVE won't have any effect on the reservation. 2) QEMU mapped RAM with MAP_NORESERVE We're delaing with a sparse mapping, no huge pages should be reserved. Further mappings without MAP_NORESERVE should be avoided. For 1), it doesn't matter if we set MAP_NORESERVE or not, so we can simply set it. For 2), we'd be overriding QEMUs decision and trigger reservation of huge pages, which might just fail if there are not sufficient huge pages around. We must map with MAP_NORESERVE. This change is required to support virtio-mem with hugetlb: a virtio-mem device mapped into the guest physical memory corresponds to a sparse memory mapping and QEMU maps this memory with MAP_NORESERVE. Whenever memory in that sparse region will be accessed by the VM, QEMU populates huge pages for the affected range by preallocating memory and handling any preallocation errors gracefully. So let's map shared RAM with MAP_NORESERVE. As libvhost-user only supports Linux, there shouldn't be anything to take care of in regard of other OS support. Without this change, libvhost-user will fail mapping the region if there are currently not enough huge pages to perform the reservation: fv_panic: libvhost-user: region mmap error: Cannot allocate memory Cc: "Marc-André Lureau" <marcandre.lureau@redhat.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Raphael Norwitz <raphael.norwitz@nutanix.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20220111123939.132659-1-david@redhat.com> Acked-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
2022-02-04libvhost-user: handle removal of identical regionsRaphael Norwitz1-12/+16
Today if QEMU (or any other VMM) has sent multiple copies of the same region to a libvhost-user based backend and then attempts to remove the region, only one instance of the region will be removed, leaving stale copies of the region in dev->regions[]. This change resolves this by having vu_rem_mem_reg() iterate through all regions in dev->regions[] and delete all matching regions. Suggested-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Message-Id: <20220117041050.19718-7-raphael.norwitz@nutanix.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com>
2022-02-04libvhost-user: prevent over-running max RAM slotsRaphael Norwitz1-0/+8
When VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS support was added to libvhost-user, no guardrails were added to protect against QEMU attempting to hot-add too many RAM slots to a VM with a libvhost-user based backed attached. This change adds the missing error handling by introducing a check on the number of RAM slots the device has available before proceeding to process the VHOST_USER_ADD_MEM_REG message. Suggested-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Message-Id: <20220117041050.19718-6-raphael.norwitz@nutanix.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-02-04libvhost-user: fix VHOST_USER_REM_MEM_REG not closing the fdDavid Hildenbrand1-0/+2
We end up not closing the file descriptor, resulting in leaking one file descriptor for each VHOST_USER_REM_MEM_REG message. Fixes: 875b9fd97b34 ("Support individual region unmap in libvhost-user") Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Raphael Norwitz <raphael.norwitz@nutanix.com> Cc: "Marc-André Lureau" <marcandre.lureau@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Coiby Xu <coiby.xu@gmail.com> Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Message-Id: <20220117041050.19718-5-raphael.norwitz@nutanix.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-02-04libvhost-user: Simplify VHOST_USER_REM_MEM_REGDavid Hildenbrand1-16/+14
Let's avoid having to manually copy all elements. Copy only the ones necessary to close the hole and perform the operation in-place without a second array. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Message-Id: <20220117041050.19718-4-raphael.norwitz@nutanix.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-02-04libvhost-user: Add vu_add_mem_reg input validationRaphael Norwitz1-0/+15
Today if multiple FDs are sent from the VMM to the backend in a VHOST_USER_ADD_MEM_REG message, one FD will be mapped and the remaining FDs will be leaked. Therefore if multiple FDs are sent we report an error and fail the operation, closing all FDs in the message. Likewise in case the VMM sends a message with a size less than that of a memory region descriptor, we add a check to gracefully report an error and fail the operation rather than crashing. Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Message-Id: <20220117041050.19718-3-raphael.norwitz@nutanix.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com>
2022-02-04libvhost-user: Add vu_rem_mem_reg input validationRaphael Norwitz2-0/+17
Today if multiple FDs are sent from the VMM to the backend in a VHOST_USER_REM_MEM_REG message, one FD will be unmapped and the remaining FDs will be leaked. Therefore if multiple FDs are sent we report an error and fail the operation, closing all FDs in the message. Likewise in case the VMM sends a message with a size less than that of a memory region descriptor, we add a check to gracefully report an error and fail the operation rather than crashing. Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Message-Id: <20220117041050.19718-2-raphael.norwitz@nutanix.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com>
2021-10-20libvhost-user: fix VHOST_USER_REM_MEM_REG skipping mmap_addrDavid Hildenbrand1-0/+1
We end up not copying the mmap_addr of all existing regions, resulting in a SEGFAULT once we actually try to map/access anything within our memory regions. Fixes: 875b9fd97b34 ("Support individual region unmap in libvhost-user") Cc: qemu-stable@nongnu.org Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Raphael Norwitz <raphael.norwitz@nutanix.com> Cc: "Marc-André Lureau" <marcandre.lureau@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Coiby Xu <coiby.xu@gmail.com> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20211011201047.62587-1-david@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2021-07-29libvhost-user: fix -Werror=format= warnings with __u64 fieldsMarc-André Lureau1-4/+4
../subprojects/libvhost-user/libvhost-user.c:1070:12: error: format ‘%lx’ expects argument of type ‘long unsigned int’, but argument 3 has type ‘__u64’ {aka ‘long long unsigned int’} [-Werror=format=] 1070 | DPRINT(" desc_user_addr: 0x%016" PRIx64 "\n", vra->desc_user_addr); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~ | | | __u64 {aka long long unsigned int} Rather than using %llx, which may fail if __u64 is declared differently elsewhere, let's just cast the values. Feel free to propose a better solution! Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210505151313.203258-2-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-29meson: fix meson 0.58 warning with libvhost-user subprojectMarc-André Lureau4-6/+4
Meson now checks that subprojects do not access files from parent project. While we all agree this is best practice, libvhost-user also want to share a few headers with QEMU, and libvhost-user isn't really a standalone project at this point (although this is making the dependency a bit more explicit). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210505151313.203258-1-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-23build-sys: add libvhost-user missing dependenciesMarc-André Lureau1-0/+3
This help fixing static compilation issues. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20210114125605.1227742-4-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-20libvhost-user: Include poll.h instead of sys/poll.hJiaxun Yang1-1/+1
Musl libc complains about it's wrong usage. In file included from ../subprojects/libvhost-user/libvhost-user.h:20, from ../subprojects/libvhost-user/libvhost-user-glib.h:19, from ../subprojects/libvhost-user/libvhost-user-glib.c:15: /usr/include/sys/poll.h:1:2: error: #warning redirecting incorrect #include <sys/poll.h> to <poll.h> [-Werror=cpp] 1 | #warning redirecting incorrect #include <sys/poll.h> to <poll.h> | ^~~~~~~ Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20210118063808.12471-3-jiaxun.yang@flygoat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-12-09libvhost-user: add a simple link test without glibMarc-André Lureau2-0/+49
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20201125100640.366523-8-marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-12-08libvhost-user: make it a meson subprojectMarc-André Lureau5-0/+3805
By making libvhost-user a subproject, check it builds standalone (without the global QEMU cflags etc). Note that the library still relies on QEMU include/qemu/atomic.h and linux_headers/. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20201125100640.366523-6-marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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