riscv/qemu - qemu - Gitea: Git with a cup of tea

Commit Graph

Author	SHA1	Message	Date
Paolo Bonzini	d641ec30be	kconfig: express dependency of individual boards on libfdt Now that boards are enabled by default and the "CONFIG_FOO=y" entries are gone from configs/devices/, there cannot be any more a conflicts between the default contents of configs/devices/ and a failed "depends on" clause. With this change, each individual board or target can express whether it needs FDT. It can then include the common code in the build via "select DEVICE_TREE", which will also as tell meson to link with libfdt. This allows building non-microvm x86 emulators without having libfdt available. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	2 years ago
Paolo Bonzini	1935b7ead1	kconfig: allow compiling out QEMU device tree code per target Introduce a new Kconfig symbol, CONFIG_DEVICE_TREE, that specifies whether to include the common device tree code in system/device_tree.c and to link to libfdt. For now, include it unconditionally if libfdt is available. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	2 years ago
Philippe Mathieu-Daudé	1dfd42c426	hw/rdma: Remove deprecated pvrdma device and rdmacm-mux helper The whole RDMA subsystem was deprecated in commit `e9a54265f5` ("hw/rdma: Deprecate the pvrdma device and the rdma subsystem") released in v8.2. Remove: - PVRDMA device - generated vmw_pvrdma/ directory from linux-headers - rdmacm-mux tool from contrib/ Cc: Yuval Shaia <yuval.shaia.ml@gmail.com> Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20240328130255.52257-2-philmd@linaro.org>	2 years ago
Marc-André Lureau	cca1575686	build-sys: add a "pixman" feature For now, pixman is mandatory, but we set config_host.h and Kconfig. Once compilation is fixed, "pixman" will become actually optional. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>	3 years ago
Maciej S. Szmigiero	0d9e8c0b67	Add Hyper-V Dynamic Memory Protocol driver (hv-balloon) base This driver is like virtio-balloon on steroids: it allows both changing the guest memory allocation via ballooning and (in the next patch) inserting pieces of extra RAM into it on demand from a provided memory backend. The actual resizing is done via ballooning interface (for example, via the "balloon" HMP command). This includes resizing the guest past its boot size - that is, hot-adding additional memory in granularity limited only by the guest alignment requirements, as provided by the next patch. In contrast with ACPI DIMM hotplug where one can only request to unplug a whole DIMM stick this driver allows removing memory from guest in single page (4k) units via ballooning. After a VM reboot the guest is back to its original (boot) size. In the future, the guest boot memory size might be changed on reboot instead, taking into account the effective size that VM had before that reboot (much like Hyper-V does). For performance reasons, the guest-released memory is tracked in a few range trees, as a series of (start, count) ranges. Each time a new page range is inserted into such tree its neighbors are checked as candidates for possible merging with it. Besides performance reasons, the Dynamic Memory protocol itself uses page ranges as the data structure in its messages, so relevant pages need to be merged into such ranges anyway. One has to be careful when tracking the guest-released pages, since the guest can maliciously report returning pages outside its current address space, which later clash with the address range of newly added memory. Similarly, the guest can report freeing the same page twice. The above design results in much better ballooning performance than when using virtio-balloon with the same guest: 230 GB / minute with this driver versus 70 GB / minute with virtio-balloon. During a ballooning operation most of time is spent waiting for the guest to come up with newly freed page ranges, processing the received ranges on the host side (in QEMU and KVM) is nearly instantaneous. The unballoon operation is also pretty much instantaneous: thanks to the merging of the ballooned out page ranges 200 GB of memory can be returned to the guest in about 1 second. With virtio-balloon this operation takes about 2.5 minutes. These tests were done against a Windows Server 2019 guest running on a Xeon E5-2699, after dirtying the whole memory inside guest before each balloon operation. Using a range tree instead of a bitmap to track the removed memory also means that the solution scales well with the guest size: even a 1 TB range takes just a few bytes of such metadata. Since the required GTree operations aren't present in every Glib version a check for them was added to the meson build script, together with new "--enable-hv-balloon" and "--disable-hv-balloon" configure arguments. If these GTree operations are missing in the system's Glib version this driver will be skipped during QEMU build. An optional "status-report=on" device parameter requests memory status events from the guest (typically sent every second), which allow the host to learn both the guest memory available and the guest memory in use counts. Following commits will add support for their external emission as "HV_BALLOON_STATUS_REPORT" QMP events. The driver is named hv-balloon since the Linux kernel client driver for the Dynamic Memory Protocol is named as such and to follow the naming pattern established by the virtio-balloon driver. The whole protocol runs over Hyper-V VMBus. The driver was tested against Windows Server 2012 R2, Windows Server 2016 and Windows Server 2019 guests and obeys the guest alignment requirements reported to the host via DM_CAPABILITIES_REPORT message. Acked-by: David Hildenbrand <david@redhat.com> Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>	3 years ago
Jagannathan Raman	55116968de	vfio-user: build library 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>	4 years ago
Paolo Bonzini	43b6d7ee1f	meson: use have_vhost_* variables to pick sources Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	4 years ago
Paolo Bonzini	65ce87d476	kconfig: split CONFIG_SPARSE_MEM from fuzzing Pass CONFIG_FUZZ via host_kconfig, and use it to select the sparse-mem device. Cc: Alexander Oleinik <alxndr@bu.edu> Reviewed-by: Alexander Bulekov <alxndr@bu.edu> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Alexander Bulekov <alxndr@bu.edu> Message-Id: <20211007130829.632254-1-pbonzini@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	5 years ago
Jagannathan Raman	3090de695b	multi-process: Add config option for multi-process QEMU Add configuration options to enable or disable multiprocess QEMU code Signed-off-by: John G Johnson <john.g.johnson@oracle.com> Signed-off-by: Jagannathan Raman <jag.raman@oracle.com> Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 6cc37253e35418ebd7b675a31a3df6e3c7a12dc1.1611938319.git.jag.raman@oracle.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>	5 years ago
Laurent Vivier	40bc0ca924	configure: Fix build dependencies with vhost-vdpa. Following the same logic as for vhost-net-user and vhost-kernel, enable vhost-net if vhost-net-vdpa is enabled and vhost-net is not explicitly disabled. See `299e6f19b3` ("vhost-net: revamp configure logic") Autoselect VHOST if VHOST_VDPA is set See `21c6b0c87e` ("configure: simplify vhost condition with Kconfig") See `2becc36a3e` ("meson: infrastructure for building emulators" Problems can be triggered using; ... --enable-vhost-vdpa --disable-vhost-user --disable-vhost-kernel ... Fixes: `108a64818e` ("vhost-vdpa: introduce vhost-vdpa backend") Cc: lulu@redhat.com Cc: pbonzini@redhat.com Cc: marcandre.lureau@redhat.com Signed-off-by: Laurent Vivier <lvivier@redhat.com> Message-Id: <20200924210023.160679-1-lvivier@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>	6 years ago
Paolo Bonzini	231073f7fb	kconfig: fix comment referring to old Makefiles Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200908094244.26327-1-pbonzini@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>	6 years ago
Philippe Mathieu-Daudé	06e89e13be	accel/Kconfig: Extract accel selectors into their own config Move the accel selectors from the global Kconfig.host to their own Kconfig file. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	6 years ago
Marc-André Lureau	21c6b0c87e	configure: simplify vhost condition with Kconfig Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	7 years ago
Paolo Bonzini	98387d5802	9p: simplify source file selection Express the complex conditions in Kconfig rather than Makefiles, since Kconfig is better suited at expressing dependencies and detecting contradictions. Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	7 years ago
Paolo Bonzini	d6c1bd4a22	kconfig: add dependencies on CONFIG_MSI_NONBROKEN For devices that require msi_init/msix_init to succeed, add a dependency on CONFIG_MSI_NONBROKEN. This will prevent those devices from appearing in a binary that cannot instantiate them. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	7 years ago
Paolo Bonzini	e0e312f352	build: switch to Kconfig The make_device_config.sh script is replaced by minikconf, which is modified to support the same command line as its predecessor. The roots of the parsing are default-configs/.mak, Kconfig.host and hw/Kconfig. One difference with make_device_config.sh is that all symbols have to be defined in a Kconfig file, including those coming from the configure script. This is the reason for the Kconfig.host file introduced in the previous patch. Whenever a file in default-configs/.mak used $(...) to refer to a config-host.mak symbol, this is replaced by a Kconfig dependency; this part must be done already in this patch for bisectability. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Yang Zhong <yang.zhong@intel.com> Acked-by: Thomas Huth <thuth@redhat.com> Message-Id: <20190123065618.3520-28-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	7 years ago
Paolo Bonzini	82f5181777	kconfig: introduce kconfig files The Kconfig files were generated mostly with this script: for i in `grep -ho CONFIG_[A-Z0-9_]* default-configs/* \| sort -u`; do set fnord `git grep -lw $i -- 'hw//Makefile.objs' ` shift if test $# = 1; then cat >> $(dirname $1)/Kconfig << EOF config ${i#CONFIG_} bool EOF git add $(dirname $1)/Kconfig else echo $i $ fi done sed -i '$d' hw//Kconfig for i in hw/; do if test -d $i && ! test -f $i/Kconfig; then touch $i/Kconfig git add $i/Kconfig fi done Whenever a symbol is referenced from multiple subdirectories, the script prints the list of directories that reference the symbol. These symbols have to be added manually to the Kconfig files. Kconfig.host and hw/Kconfig were created manually. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <20190123065618.3520-27-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	7 years ago

17 Commits (b9c0a2e01c0f38bdc4ba8f69cf298eeebfb3738b)