93ea484375
Minor bugfixes all over the places, including one CVE. Additionally, a fix for an ancient bug in migration - one has to wonder how come no one noticed. The fix is also non-trivial since we dare not break all existing machine types with pci - we have a work around in the works, for now we just skip the work-around for old machine types. Great job by Hogan Wang noticing, debugging and fixing it, and thanks to Dr. David Alan Gilbert for reviewing the patches. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAl8e9CIPHG1zdEByZWRo YXQuY29tAAoJECgfDbjSjVRpsAIH/2EEq9rLpjqMJdzRvjq3/UAHsvm42zeTnJl7 81cM887Mrg2Nd7MXFoxurLK5UEehTzlD2DRTvaDFfJaJlrtkPM2QEU2X/6c3syAS GbmOQaljQtR4zEFE81t84mZQS025Gp0s+uble7KvtXakgp1A/vdu93OEvJkhtRY8 JBdRMlTt2T0eizvHn1obBKjaQN7tAUKl5KagHWxP1ApGU0YibUbrBadpJ18ZcKMl vwB3dwmoi4f7AjuC0GnxYKp7kC/MMhUPFoDxQKI7d+wMGFnbsAF4sBIN9EZKeOkv xT2InNSAzk/PTSuQpnDnZQjmrf4dPuL/GNJ8vQk27eaFfVchJyc= =Bu6o -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging virtio,pci: bugfixes Minor bugfixes all over the places, including one CVE. Additionally, a fix for an ancient bug in migration - one has to wonder how come no one noticed. The fix is also non-trivial since we dare not break all existing machine types with pci - we have a work around in the works, for now we just skip the work-around for old machine types. Great job by Hogan Wang noticing, debugging and fixing it, and thanks to Dr. David Alan Gilbert for reviewing the patches. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Mon 27 Jul 2020 16:34:58 BST # gpg: using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469 # gpg: issuer "mst@redhat.com" # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full] # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [full] # Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67 # Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469 * remotes/mst/tags/for_upstream: virtio-pci: fix virtio_pci_queue_enabled() MAINTAINERS: Cover the firmware JSON schema vhost-vdpa :Fix Coverity CID 1430270 / CID 1420267 libvhost-user: Report descriptor index on panic Fix vhost-user buffer over-read on ram hot-unplug hw/pci-host: save/restore pci host config register virtio-mem-pci: force virtio version 1 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
=========== QEMU README =========== QEMU is a generic and open source machine & userspace emulator and virtualizer. QEMU is capable of emulating a complete machine in software without any need for hardware virtualization support. By using dynamic translation, it achieves very good performance. QEMU can also integrate with the Xen and KVM hypervisors to provide emulated hardware while allowing the hypervisor to manage the CPU. With hypervisor support, QEMU can achieve near native performance for CPUs. When QEMU emulates CPUs directly it is capable of running operating systems made for one machine (e.g. an ARMv7 board) on a different machine (e.g. an x86_64 PC board). QEMU is also capable of providing userspace API virtualization for Linux and BSD kernel interfaces. This allows binaries compiled against one architecture ABI (e.g. the Linux PPC64 ABI) to be run on a host using a different architecture ABI (e.g. the Linux x86_64 ABI). This does not involve any hardware emulation, simply CPU and syscall emulation. QEMU aims to fit into a variety of use cases. It can be invoked directly by users wishing to have full control over its behaviour and settings. It also aims to facilitate integration into higher level management layers, by providing a stable command line interface and monitor API. It is commonly invoked indirectly via the libvirt library when using open source applications such as oVirt, OpenStack and virt-manager. QEMU as a whole is released under the GNU General Public License, version 2. For full licensing details, consult the LICENSE file. Building ======== QEMU is multi-platform software intended to be buildable on all modern Linux platforms, OS-X, Win32 (via the Mingw64 toolchain) and a variety of other UNIX targets. The simple steps to build QEMU are: .. code-block:: shell mkdir build cd build ../configure make Additional information can also be found online via the QEMU website: * `<https://qemu.org/Hosts/Linux>`_ * `<https://qemu.org/Hosts/Mac>`_ * `<https://qemu.org/Hosts/W32>`_ Submitting patches ================== The QEMU source code is maintained under the GIT version control system. .. code-block:: shell git clone https://git.qemu.org/git/qemu.git When submitting patches, one common approach is to use 'git format-patch' and/or 'git send-email' to format & send the mail to the qemu-devel@nongnu.org mailing list. All patches submitted must contain a 'Signed-off-by' line from the author. Patches should follow the guidelines set out in the CODING_STYLE.rst file. Additional information on submitting patches can be found online via the QEMU website * `<https://qemu.org/Contribute/SubmitAPatch>`_ * `<https://qemu.org/Contribute/TrivialPatches>`_ The QEMU website is also maintained under source control. .. code-block:: shell git clone https://git.qemu.org/git/qemu-web.git * `<https://www.qemu.org/2017/02/04/the-new-qemu-website-is-up/>`_ A 'git-publish' utility was created to make above process less cumbersome, and is highly recommended for making regular contributions, or even just for sending consecutive patch series revisions. It also requires a working 'git send-email' setup, and by default doesn't automate everything, so you may want to go through the above steps manually for once. For installation instructions, please go to * `<https://github.com/stefanha/git-publish>`_ The workflow with 'git-publish' is: .. code-block:: shell $ git checkout master -b my-feature $ # work on new commits, add your 'Signed-off-by' lines to each $ git publish Your patch series will be sent and tagged as my-feature-v1 if you need to refer back to it in the future. Sending v2: .. code-block:: shell $ git checkout my-feature # same topic branch $ # making changes to the commits (using 'git rebase', for example) $ git publish Your patch series will be sent with 'v2' tag in the subject and the git tip will be tagged as my-feature-v2. Bug reporting ============= The QEMU project uses Launchpad as its primary upstream bug tracker. Bugs found when running code built from QEMU git or upstream released sources should be reported via: * `<https://bugs.launchpad.net/qemu/>`_ If using QEMU via an operating system vendor pre-built binary package, it is preferable to report bugs to the vendor's own bug tracker first. If the bug is also known to affect latest upstream code, it can also be reported via launchpad. For additional information on bug reporting consult: * `<https://qemu.org/Contribute/ReportABug>`_ Contact ======= The QEMU community can be contacted in a number of ways, with the two main methods being email and IRC * `<mailto:qemu-devel@nongnu.org>`_ * `<https://lists.nongnu.org/mailman/listinfo/qemu-devel>`_ * #qemu on irc.oftc.net Information on additional methods of contacting the community can be found online via the QEMU website: * `<https://qemu.org/Contribute/StartHere>`_