[pve-devel] [PATCH qemu-server 0/5] implement suspend to disk

Dominik Csapak d.csapak at proxmox.com
Mon Mar 11 15:45:49 CET 2019


implement suspend to disk for vms

the idea is the following:

add a 'suspend' lock
halt execution of the vm
save the vmstate to a file/disk/etc.
hard poweroff the vm (qmp quit)

on the next start check for 'suspend' lock
resume from saved state

the lock prevents any changes to the vm that would prevent a resume
(config change, migration, etc)

this series makes the most sense with my series[0] to show the lock in the
tree, since then the user sees which vms are suspended

also i will send a series that includes the lock in the vm status,
so we can show it in the vm summary also

0: https://pve.proxmox.com/pipermail/pve-devel/2019-February/035830.html

Dominik Csapak (5):
  move code of save_vmstate preparation
  correct comment about size
  implement suspend to disk for running vms
  resume suspended vm on start
  add ability to suspend a vm to disk from the api

 PVE/API2/Qemu.pm  |  10 ++++-
 PVE/QemuConfig.pm |  30 +-------------
 PVE/QemuServer.pm | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++++--
 3 files changed, 123 insertions(+), 33 deletions(-)

-- 
2.11.0




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