Jason Andryuk 0a5e0ce0fb
libxl: Add suppress-vmdesc to QEMU machine ...
The device model state saved by QMP xen-save-devices-state doesn't
include the vmdesc json. When restoring an HVM, xen-load-devices-state
always triggers "Expected vmdescription section, but got 0". This is
not a problem when restore comes from a file. However, when QEMU runs
in a linux stubdom and comes over a console, EOF is not received. This
causes a delay restoring - though it does restore.
Setting suppress-vmdesc skips looking for the vmdesc during restore and
avoids the wait.
QEMU 5.2 enables suppress-vmdesc by default for xenfv, but this change
sets it manually for xenfv and xen_platform_pci=0 when -machine pc is
use.
QEMU commit 9850c6047b8b "migration: Allow to suppress vmdesc
submission" added suppress-vmdesc in QEMU 2.3.
Signed-off-by: Jason Andryuk <jandryuk@gmail.com >
Acked-by: Anthony PERARD <anthony.perard@citrix.com >
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Jason Andryuk
0a5e0ce0fb