Page Comparison

https://www.juniper.net/documentation/en_US/vsrx/topics/task/multi-task/security-vsrx-with-kvm-installing.html

...

2- Create an VM ( with virt-manager ) and use the qcow2 HDD + add at list 2 interfaces

type: Redhat 7
Set RAM to 4096 MB and
set CPUs to 2
Network:  br0 ( mgt) and virbr0 ( for data )

/home/me/Downloads/juniper/qcow2files/vsrxremote-vmdisk-17.3R1.10.qcow2
or
/home/me/Downloads/juniper/qcow2files/vsrxhub-vmdisk-17.3R1.10.qcow2

See next page:     /etc/libvirt/qemu/vsrxremote.xml

     <feature policy='force' name='vmx'/>
     <feature policy='disable' name='invtsc'/>

Image Added

It take very look time to boot-up ( could use:  virsh start vSRCVM vsrxremote --console )