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Hi, in order for installers and hardware discovery programs to be able to load the right device drivers, we really want a virtual device bus in Xen, a'la power5 VIO. This "xen bus" is on the top of Jeremy's TODO list, but since I have heard rumors that some of our friends here might have (some of the) code already it would seem prudent to check whether that code could be

Hi, in order for installers and hardware discovery programs to be able to load the right device drivers, we really want a virtual device bus in Xen, a'la power5 VIO. This "xen bus" is on the top of Jeremy's TODO list, but since I have heard rumors that some of our friends here might have (some of the) code already it would seem prudent to check whether that code could be

...gt.o +diff --git a/drivers/scsi/ibmvscsi/ibmvstgt.c b/drivers/scsi/ibmvscsi/ibmvstgt.c +new file mode 100644 +index 0000000..73fcfca +--- /dev/null ++++ b/drivers/scsi/ibmvscsi/ibmvstgt.c +@@ -0,0 +1,958 @@ ++/* ++ * IBM eServer i/pSeries Virtual SCSI Target Driver ++ * Copyright (C) 2003-2005 Dave Boutcher (boutcher@us.ibm.com) IBM Corp. ++ * Santiago Leon (santil@us.ibm.com) IBM Corp. ++ * Linda Xie (lxie@us.ibm.com) IBM Corp. ++ * ++ * Copyright (C) 2005-2006 FUJITA Tomonori <tomof@acm.org> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under...

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths