load custom kernel + initrd.gz proxmox Kvm

hello to all.

can someone tell me how i can specify into my VMs .conf files that KVM has to use a custom vmlinuz.kernel and a custom initrd.gz ?

i can't find this info as i easly found how to link a virtual serial and i can login it with telnet :)

basically, i want to manage all of the VM by the web panel but it has to load that 2 files. in some webpages i saw parameters like: -kernel /boot/vmlinuz-2.6.30-1-amd64 -initrd /boot/initrd.img-2.6.30-1-amd64
in the command that uses directly kvm like the one following

/usr/bin/kvm ..... -nographic -monitor pty -boot c -kernel /boot/vmlinuz-2.6.30-1-amd64 -initrd /boot/initrd.img-2.6.30-1-amd64 ....... -serial pty -parallel none -usb


i cut some part of the command that is no interesting i think for me.

TY to ALL for the support that u can give to me.
Bests
Simone