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[PATCH v5 00/50] Initial support for multi-process qemu
From: |
Jagannathan Raman |
Subject: |
[PATCH v5 00/50] Initial support for multi-process qemu |
Date: |
Mon, 24 Feb 2020 15:54:51 -0500 |
Hello
Started with the presentation in October 2017 made by Marc-Andre (Red Hat)
and Konrad Wilk (Oracle) [1], and continued by Jag's BoF at KVM Forum 2018,
the multi-process project is now available and presented in this patchset.
This first series enables the emulation of lsi53c895a in a separate process.
We posted the Proof Of Concept patches [2] before the BoF session in 2018.
Subsequently, we posted RFC v1 [3], RFC v2 [4], RFC v3 [5] and RFC v4 [6].
John & Elena presented the status of this project in KVM Forum 2019. We
appreciate the in-person and email feedback we received to improve this
patchset. We also received valuable feedback and direction on future
improvements from the bi-weekly KVM community conference. We have
incorporated all the feedback in the current version of the series, v5.
Following people contributed to this patchset:
John G Johnson <address@hidden>
Jagannathan Raman <address@hidden>
Elena Ufimtseva <address@hidden>
Kanth Ghatraju <address@hidden>
Konrad Wilk <address@hidden>
For full concept writeup about QEMU disaggregation, refer to
docs/devel/qemu-multiprocess.rst. Please refer to
docs/qemu-multiprocess.txt for usage information.
We are planning on making the following improvements in the future to the
experimental
Qemu multi-process:
- Asynchronous communication channel;
- Performance improvements;
- Libvirt support;
- Enforcement of security policies and privileges control;
We welcome all your ideas, concerns, and questions for this patchset.
Thank you!
[1]:
http://events17.linuxfoundation.org/sites/events/files/slides/KVM%20FORUM%20multi-process.pdf
[1]: https://www.youtube.com/watch?v=Kq1-coHh7lg
[2]: https://www.mail-archive.com/address@hidden/msg566538.html
[3]: https://www.mail-archive.com/address@hidden/msg602285.html
[4]: https://www.mail-archive.com/address@hidden/msg624877.html
[5]: https://www.mail-archive.com/address@hidden/msg642000.html
[6]: https://www.mail-archive.com/address@hidden/msg655118.html
Elena Ufimtseva (23):
multi-process: add a command line option for debug file
multi-process: introduce proxy object
mutli-process: build remote command line args
multi-process: configure remote side devices
multi-process: add qdev_proxy_add to create proxy devices
multi-process: remote: add setup_devices msg processing
multi-process: remote: use fd for socket from parent process
multi-process: remote: add create_done condition
multi-process: add processing of remote device command line
multi-process: refractor vl.c code
multi-process: add remote option
multi-process: add remote options parser
multi-process: add parse_cmdline in remote process
multi-process: send heartbeat messages to remote
multi-process: handle heartbeat messages in remote process
multi-process/mon: choose HMP commands based on target
multi-process/mig: Load VMSD in the proxy object
multi-process/mig: refactor runstate_check into common file
multi-process/mig: Synchronize runstate of remote process
multi-process/mig: Restore the VMSD in remote process
multi-process: Enable support for multiple devices in remote
multi-process: Validate incoming commands from Proxy
multi-process: add configure and usage information
Jagannathan Raman (26):
multi-process: memory: alloc RAM from file at offset
multi-process: Refactor machine_init and exit notifiers
multi-process: Add stub functions to facilate build of multi-process
multi-process: Add config option for multi-process QEMU
multi-process: build system for remote device process
multi-process: define mpqemu-link object
multi-process: add functions to synchronize proxy and remote endpoints
multi-process: setup PCI host bridge for remote device
multi-process: setup a machine object for remote device process
multi-process: setup memory manager for remote device
multi-process: remote process initialization
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
multi-process: Introduce build flags to separate remote process code
multi-process: Use separate MMIO communication channel
multi-process: perform device reset in the remote process
multi-process/mon: stub functions to enable QMP module for remote
process
multi-process/mon: enable QMP module support in the remote process
multi-process/mon: Refactor monitor/chardev functions out of vl.c
multi-process/mon: Initialize QMP module for remote processes
multi-process: prevent duplicate memory initialization in remote
multi-process/mig: build migration module in the remote process
multi-process/mig: Enable VMSD save in the Proxy object
multi-process/mig: Send VMSD of remote to the Proxy object
John G Johnson (1):
multi-process: add the concept description to
docs/devel/qemu-multiprocess
Makefile | 2 +
Makefile.objs | 45 ++
Makefile.target | 105 +++-
accel/Makefile.objs | 2 +
accel/stubs/kvm-stub.c | 5 +
accel/stubs/tcg-stub.c | 107 ++++
backends/Makefile.objs | 2 +
block/Makefile.objs | 2 +
chardev/char.c | 14 +
configure | 15 +
docs/devel/index.rst | 1 +
docs/devel/qemu-multiprocess.rst | 1102 ++++++++++++++++++++++++++++++++++++++
docs/qemu-multiprocess.txt | 86 +++
exec.c | 31 +-
hmp-commands-info.hx | 10 +
hmp-commands.hx | 25 +-
hw/Makefile.objs | 7 +
hw/block/Makefile.objs | 2 +
hw/core/Makefile.objs | 19 +
hw/nvram/Makefile.objs | 2 +
hw/pci/Makefile.objs | 4 +
hw/proxy/memory-sync.c | 212 ++++++++
hw/proxy/qemu-proxy.c | 906 +++++++++++++++++++++++++++++++
hw/scsi/Makefile.objs | 2 +
include/chardev/char.h | 1 +
include/exec/address-spaces.h | 2 +
include/exec/ram_addr.h | 4 +-
include/hw/pci/pci_ids.h | 3 +
include/hw/proxy/memory-sync.h | 37 ++
include/hw/proxy/qemu-proxy.h | 107 ++++
include/hw/qdev-core.h | 2 +
include/io/mpqemu-link.h | 218 ++++++++
include/monitor/monitor.h | 2 +
include/monitor/qdev.h | 26 +
include/qemu-common.h | 8 +
include/qemu/log.h | 1 +
include/qemu/mmap-alloc.h | 3 +-
include/remote/iohub.h | 50 ++
include/remote/machine.h | 32 ++
include/remote/memory.h | 20 +
include/remote/pcihost.h | 45 ++
include/sysemu/runstate.h | 3 +
include/sysemu/sysemu.h | 2 +
io/Makefile.objs | 2 +
io/mpqemu-link.c | 410 ++++++++++++++
memory.c | 2 +-
migration/Makefile.objs | 13 +
migration/savevm.c | 63 +++
migration/savevm.h | 3 +
monitor/Makefile.objs | 4 +
monitor/misc.c | 84 +--
monitor/monitor-internal.h | 38 ++
monitor/monitor.c | 40 +-
net/Makefile.objs | 2 +
qapi/Makefile.objs | 2 +
qdev-monitor.c | 259 ++++++++-
qemu-options.hx | 21 +
qom/Makefile.objs | 4 +
remote/Makefile.objs | 6 +
remote/iohub.c | 148 +++++
remote/machine.c | 99 ++++
remote/memory.c | 63 +++
remote/pcihost.c | 64 +++
remote/remote-main.c | 625 +++++++++++++++++++++
remote/remote-opts.c | 115 ++++
remote/remote-opts.h | 15 +
rules.mak | 2 +-
runstate.c | 41 ++
scripts/hxtool | 44 +-
softmmu/vl.c | 299 ++++-------
stubs/audio.c | 12 +
stubs/gdbstub.c | 23 +
stubs/machine-init-done.c | 4 +
stubs/migration.c | 211 ++++++++
stubs/monitor.c | 72 +++
stubs/net-stub.c | 121 +++++
stubs/qapi-misc.c | 43 ++
stubs/qapi-target.c | 55 ++
stubs/replay.c | 26 +
stubs/runstate-check.c | 3 +
stubs/ui-stub.c | 130 +++++
stubs/vl-stub.c | 195 +++++++
stubs/vmstate.c | 19 +
stubs/xen-mapcache.c | 22 +
ui/Makefile.objs | 2 +
util/Makefile.objs | 2 +
util/log.c | 2 +
util/mmap-alloc.c | 7 +-
util/notify.c | 43 ++
util/oslib-posix.c | 2 +-
vl-parse.c | 164 ++++++
vl.h | 43 ++
92 files changed, 6698 insertions(+), 245 deletions(-)
create mode 100644 docs/devel/qemu-multiprocess.rst
create mode 100644 docs/qemu-multiprocess.txt
create mode 100644 hw/proxy/memory-sync.c
create mode 100644 hw/proxy/qemu-proxy.c
create mode 100644 include/hw/proxy/memory-sync.h
create mode 100644 include/hw/proxy/qemu-proxy.h
create mode 100644 include/io/mpqemu-link.h
create mode 100644 include/remote/iohub.h
create mode 100644 include/remote/machine.h
create mode 100644 include/remote/memory.h
create mode 100644 include/remote/pcihost.h
create mode 100644 io/mpqemu-link.c
create mode 100644 remote/Makefile.objs
create mode 100644 remote/iohub.c
create mode 100644 remote/machine.c
create mode 100644 remote/memory.c
create mode 100644 remote/pcihost.c
create mode 100644 remote/remote-main.c
create mode 100644 remote/remote-opts.c
create mode 100644 remote/remote-opts.h
create mode 100644 runstate.c
mode change 100644 => 100755 scripts/hxtool
create mode 100644 stubs/audio.c
create mode 100644 stubs/migration.c
create mode 100644 stubs/net-stub.c
create mode 100644 stubs/qapi-misc.c
create mode 100644 stubs/qapi-target.c
create mode 100644 stubs/ui-stub.c
create mode 100644 stubs/vl-stub.c
create mode 100644 stubs/xen-mapcache.c
create mode 100644 vl-parse.c
create mode 100644 vl.h
--
1.8.3.1
- [PATCH v5 00/50] Initial support for multi-process qemu,
Jagannathan Raman <=
- [PATCH v5 02/50] multi-process: Refactor machine_init and exit notifiers, Jagannathan Raman, 2020/02/24
- [PATCH v5 03/50] multi-process: add a command line option for debug file, Jagannathan Raman, 2020/02/24
- [PATCH v5 01/50] multi-process: memory: alloc RAM from file at offset, Jagannathan Raman, 2020/02/24
- [PATCH v5 05/50] multi-process: Add config option for multi-process QEMU, Jagannathan Raman, 2020/02/24
- [PATCH v5 07/50] multi-process: define mpqemu-link object, Jagannathan Raman, 2020/02/24
- [PATCH v5 09/50] multi-process: setup PCI host bridge for remote device, Jagannathan Raman, 2020/02/24
- [PATCH v5 06/50] multi-process: build system for remote device process, Jagannathan Raman, 2020/02/24
- [PATCH v5 08/50] multi-process: add functions to synchronize proxy and remote endpoints, Jagannathan Raman, 2020/02/24
- [PATCH v5 11/50] multi-process: setup memory manager for remote device, Jagannathan Raman, 2020/02/24
- [PATCH v5 10/50] multi-process: setup a machine object for remote device process, Jagannathan Raman, 2020/02/24