It's quite possible to host a virtual guest with a passthrough controller, but it's not possible to boot from one. I've documented this configuration here in the past.
I don't think this question would appeal to a large audience, though. This is a pretty esoteric request.
The purpose of the passthrough controller is to provide dedicated access to a hardware resource, bypassing VMware. However, even in this situation, your VM needs to live somewhere. That means the VM folder, .vmx files, logs, RAM .swp files, etc. need to be located somewhere where VMware can see them. For me, that means VMware-accessible storage separate from the passthrough device. The LSI 9211 SAS controller is still perfectly usable for data disks and non-boot disk purposes.
DirectPath I/O PCI configuration for LSI 9211-8i controller
Virtual machine configuration with passthrough device configured
zpool listing showing the drives connected to the passthrough controller
[root@Davalan ~]# zpool status -v
scan: scrub repaired 0 in 1h44m with 0 errors on Sat Jul 6 13:12:06 2013
NAME STATE READ WRITE CKSUM
vol1 ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
scsi-35000c5003af99fa7 ONLINE 0 0 0
scsi-35000cca0153ec2d0 ONLINE 0 0 0
mirror-1 ONLINE 0 0 0
scsi-35000cca01540e340 ONLINE 0 0 0
scsi-35000cca01540e298 ONLINE 0 0 0
ata-STEC_M8IOPS-50_STM000136649 ONLINE 0 0 0