add ivshmem documentation

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
This commit is contained in:
Dominik Csapak 2019-02-22 11:38:34 +01:00 committed by Thomas Lamprecht
parent a7b58b52c5
commit 0ad30983a0

19
qm.adoc
View File

@ -703,6 +703,25 @@ you need to set the client resolution in the OVMF menu(which you can reach
with a press of the ESC button during boot), or you have to choose
SPICE as the display type.
[[qm_ivshmem]]
Inter-VM shared memory
~~~~~~~~~~~~~~~~~~~~~~
You can add a Inter-VM shared memory device (`ivshmem`) to be able to
share memory between the host and a guest, or between multiple guests.
To add such a device, you can use `qm`:
qm set <vmid> -ivshmem size=32,name=foo
Where the size is in MiB. The file will be located under
`/dev/shm/pve-shm-$name` (the default name is the vmid).
A usecase for such a device is Looking Glass
footnote:[Looking Glass: https://looking-glass.hostfission.com/]
which enables high performance, low-latency display mirroring between
host and guest.
[[qm_startup_and_shutdown]]
Automatic Start and Shutdown of Virtual Machines
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~