How to make my domU to see HBA controller?

[andben]

I did like this:

at dom0:
1: Edit /etc/sysconfig/kernel and add "pciback" as a initrd module, recomplie with "mkinitrd", igone error messages.
2: Edit menu.lst and add "pciback.hide=(07:00.0)(07:00.1)" (hba adapters) to the XEN kernel row.
3: Edit /etc/xen/vm/domu and add pci=[ '07:00.0', '07:00.1' ]
4: Reboot
5: ssh to domU and enter "lspci" and the HBA shows up!

dmesg on the dom0 will report:

pciback 0000:07:00.0: PCI INT A -> GSI 24 (level, low) -> IRQ 24
pciback 0000:07:00.0: Driver tried to write to a read-only configuration space field at offset 0x54, size 2. This may be harmless, but if you have problems with your device:
1) see permissive attribute in sysfs
2) report problems to the xen-devel mailing list along with details of your device obtained from lspci.

fdisk -l does NOT show the SAN disk like /dev/sda, /dev/sdb.