Hello, This is the v11 of the patchset. Thank you very much for the review of the v10 of the series. We are glad to hear the patchset is getting in a better shape.
We made changes to the following patches in this series. [PATCH v10 06/19] multi-process: define MPQemuMsg format and transmission functions [PATCH v10 08/19] multi-process: Associate fd of a PCIDevice with its object [PATCH v10 10/19] multi-process: introduce proxy object To touch upon the history of this project, we posted the Proof Of Concept patches before the BoF session in 2018. Subsequently, we posted 9 versions on the qemu-devel mailist. You can find them by following the links below ([1] - [9]). Following people contributed to the design and implementation of this project: Jagannathan Raman <jag.ra...@oracle.com> Elena Ufimtseva <elena.ufimts...@oracle.com> John G Johnson <john.g.john...@oracle.com> Stefan Hajnoczi <stefa...@redhat.com> Konrad Wilk <konrad.w...@oracle.com> Kanth Ghatraju <kanth.ghatr...@oracle.com> We would like to thank QEMU community for your feedback in the design and implementation of this project. Qemu wiki page: https://wiki.qemu.org/Features/MultiProcessQEMU For the full concept writeup about QEMU multi-process, please refer to docs/devel/qemu-multiprocess.rst. Also see docs/qemu-multiprocess.txt for usage information. We welcome all your ideas, concerns, and questions for this patchset. [POC]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg566538.html [1]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg602285.html [2]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg624877.html [3]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg642000.html [4]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg655118.html [5]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg682429.html [6]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg697484.html [7]: https://patchew.org/QEMU/cover.1593273671.git.elena.ufimts...@oracle.com/ [8]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg727007.html [9]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg734275.html [10]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg747638.html Elena Ufimtseva (7): multi-process: add qio channel function to transmit multi-process: define MPQemuMsg format and transmission functions multi-process: introduce proxy object multi-process: add proxy communication functions multi-process: Forward PCI config space acceses to the remote process multi-process: perform device reset in the remote process multi-process: add configure and usage information Jagannathan Raman (11): memory: alloc RAM from file at offset multi-process: Add config option for multi-process QEMU multi-process: setup PCI host bridge for remote device multi-process: setup a machine object for remote device process multi-process: Initialize message handler in remote device multi-process: Associate fd of a PCIDevice with its object multi-process: setup memory manager for remote device multi-process: PCI BAR read/write handling for proxy & remote endpoints multi-process: Synchronize remote memory multi-process: create IOHUB object to handle irq multi-process: Retrieve PCI info from remote process John G Johnson (1): multi-process: add the concept description to docs/devel/qemu-multiprocess MAINTAINERS | 26 ++ backends/hostmem-memfd.c | 2 +- configure | 10 + docs/devel/index.rst | 1 + docs/devel/multi-process.rst | 966 ++++++++++++++++++++++++++++++++++++++++ docs/multi-process.rst | 67 +++ hw/i386/meson.build | 5 + hw/i386/remote-iohub.c | 123 +++++ hw/i386/remote-memory.c | 58 +++ hw/i386/remote-msg.c | 241 ++++++++++ hw/i386/remote-obj.c | 154 +++++++ hw/i386/remote.c | 79 ++++ hw/misc/ivshmem.c | 3 +- hw/pci-host/meson.build | 1 + hw/pci-host/remote.c | 75 ++++ hw/pci/memory-sync.c | 210 +++++++++ hw/pci/meson.build | 3 + hw/pci/proxy.c | 377 ++++++++++++++++ include/exec/memory.h | 2 + include/exec/ram_addr.h | 2 +- include/hw/i386/remote-iohub.h | 42 ++ include/hw/i386/remote-memory.h | 19 + include/hw/i386/remote-obj.h | 42 ++ include/hw/i386/remote.h | 40 ++ include/hw/pci-host/remote.h | 31 ++ include/hw/pci/memory-sync.h | 27 ++ include/hw/pci/pci_ids.h | 3 + include/hw/pci/proxy.h | 53 +++ include/io/channel.h | 24 + include/io/mpqemu-link.h | 98 ++++ include/qemu/mmap-alloc.h | 3 +- io/channel.c | 45 ++ io/meson.build | 2 + io/mpqemu-link.c | 303 +++++++++++++ meson.build | 1 + scripts/mpqemu-launcher.py | 49 ++ softmmu/memory.c | 3 +- softmmu/physmem.c | 11 +- util/mmap-alloc.c | 7 +- util/oslib-posix.c | 2 +- 40 files changed, 3197 insertions(+), 13 deletions(-) create mode 100644 docs/devel/multi-process.rst create mode 100644 docs/multi-process.rst create mode 100644 hw/i386/remote-iohub.c create mode 100644 hw/i386/remote-memory.c create mode 100644 hw/i386/remote-msg.c create mode 100644 hw/i386/remote-obj.c create mode 100644 hw/i386/remote.c create mode 100644 hw/pci-host/remote.c create mode 100644 hw/pci/memory-sync.c create mode 100644 hw/pci/proxy.c create mode 100644 include/hw/i386/remote-iohub.h create mode 100644 include/hw/i386/remote-memory.h create mode 100644 include/hw/i386/remote-obj.h create mode 100644 include/hw/i386/remote.h create mode 100644 include/hw/pci-host/remote.h create mode 100644 include/hw/pci/memory-sync.h create mode 100644 include/hw/pci/proxy.h create mode 100644 include/io/mpqemu-link.h create mode 100644 io/mpqemu-link.c create mode 100755 scripts/mpqemu-launcher.py -- 1.8.3.1
