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[PATCH RFC 00/11] vl: Explore redesign of startup
From: |
Markus Armbruster |
Subject: |
[PATCH RFC 00/11] vl: Explore redesign of startup |
Date: |
Thu, 2 Dec 2021 08:04:39 +0100 |
These patches are meant to back the memo "Redesign of QEMU startup &
initial configuration" I just posted. Read that first, please.
My running example for initial configuration via QMP is cold plug. It
works at the end of the series.
I'm taking a number of shortcuts:
* I hack up qemu-system-FOO instead of creating an alternate program.
Just so I don't have to mess with Meson.
* Instead of creating QAPI/CLI infrastructure, I use QMP as CLI: each
argument is interpreted as QMP command. This is certainly bad CLI,
but should suffice to demonstrate things.
* Instead of feeding the CLI's QMP commands to the main loop via a
quasi-monitor, I send them directly to the QMP dispatcher. Simpler,
but I'm not sure that's going to work for all QMP commands we want.
* Phase advance is by explicit command @until-phase only. Carelessly
named. We may want some other commands to advance the phase
automatically.
* There are no safeguards. You *can* run QMP commands in phases where
they crash. Data corruption is left as an exercise for the reader.
* Possibly more I can't remember right now :)
Markus Armbruster (11):
vl: Cut off the CLI with an axe
vl: Drop x-exit-preconfig
vl: Hardcode a QMP monitor on stdio for now
vl: Hardcode a VGA device for now
vl: Demonstrate (bad) CLI wrapped around QMP
vl: Factor qemu_until_phase() out of qemu_init()
vl: Implement qemu_until_phase() running from arbitrary phase
vl: Implement qemu_until_phase() running to arbitrary phase
vl: New QMP command until-phase
vl: Disregard lack of 'allow-preconfig': true
vl: Enter main loop in phase @machine-initialized
qapi/misc.json | 27 -
qapi/phase.json | 31 +
qapi/qapi-schema.json | 1 +
include/hw/qdev-core.h | 31 -
hw/core/machine-qmp-cmds.c | 1 +
hw/core/machine.c | 1 +
hw/core/qdev.c | 7 +
hw/pci/pci.c | 1 +
hw/usb/core.c | 1 +
hw/virtio/virtio-iommu.c | 1 +
monitor/hmp-cmds.c | 8 -
monitor/hmp.c | 1 +
softmmu/qdev-monitor.c | 3 +
softmmu/vl.c | 2833 ++----------------------------------
ui/console.c | 1 +
MAINTAINERS | 1 +
hmp-commands.hx | 18 -
qapi/meson.build | 1 +
18 files changed, 180 insertions(+), 2788 deletions(-)
create mode 100644 qapi/phase.json
--
2.31.1
- [PATCH RFC 00/11] vl: Explore redesign of startup,
Markus Armbruster <=
- [PATCH RFC 02/11] vl: Drop x-exit-preconfig, Markus Armbruster, 2021/12/02
- [PATCH RFC 10/11] vl: Disregard lack of 'allow-preconfig': true, Markus Armbruster, 2021/12/02
- [PATCH RFC 06/11] vl: Factor qemu_until_phase() out of qemu_init(), Markus Armbruster, 2021/12/02
- [PATCH RFC 07/11] vl: Implement qemu_until_phase() running from arbitrary phase, Markus Armbruster, 2021/12/02
- [PATCH RFC 03/11] vl: Hardcode a QMP monitor on stdio for now, Markus Armbruster, 2021/12/02
- [PATCH RFC 08/11] vl: Implement qemu_until_phase() running to arbitrary phase, Markus Armbruster, 2021/12/02
- [PATCH RFC 11/11] vl: Enter main loop in phase @machine-initialized, Markus Armbruster, 2021/12/02
- [PATCH RFC 05/11] vl: Demonstrate (bad) CLI wrapped around QMP, Markus Armbruster, 2021/12/02
- [PATCH RFC 04/11] vl: Hardcode a VGA device for now, Markus Armbruster, 2021/12/02
- [PATCH RFC 09/11] vl: New QMP command until-phase, Markus Armbruster, 2021/12/02