# Pastebin QJ8flBUZ
~/test » sudo virsh console cirros
...

$ lsblk
NAME    MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
vda     252:0    0  112M  0 disk
|-vda1  252:1    0  103M  0 part /
`-vda15 252:15   0    8M  0 part

$ [  188.134029] virtio_blk virtio1: [vda] new size: 8388608 512-byte logical blocks (4.29 GB/4.00 GiB)

$ lsblk
NAME    MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
vda     252:0    0    4G  0 disk
|-vda1  252:1    0  103M  0 part /
`-vda15 252:15   0    8M  0 part