Defining the 'keymap' option in libvirt results in the '-k' option being
passed through to QEMU [1][2]. This QEMU option has some uses, primarily
for users interacting with QEMU via stdin on the text console. However,
for users interacting with QEMU via VNC or Spice, like nova users do, it
is strongly recommended to never add the "-k" option. Doing so will
force QEMU to do keymap conversions which are known to be lossy. This
disproportionately affects users with non-US keyboard layouts, who would
be better served by relying on the guest OS to manage this.
In the long term, we would like to deprecate these options. However, we
must do this in three parts. This part allows users to unset the options
and warns users who have them set about the side effects. This change is
intended to be backported. A future change will fully deprecate the
options. Finally, after the deprecation cycle has passed, we can remove
these options in their entirety.
[1] https://github.com/libvirt/libvirt/blob/v1.2.9-maint/src/qemu/qemu_command.c#L6985-L6986
[2] https://github.com/libvirt/libvirt/blob/v1.2.9-maint/src/qemu/qemu_command.c#L7215-L7216
Change-Id: I6b1d719db0537b0f53768dbb00a5b4d01c85ba3a
Related-Bug: #1682020
d983234288