On 07/08/2010 09:24 PM, Simon Horman wrote: >> I think it would be a pretty large change. From the Xen's perspective, >> any machine even approximately approaching the 2^44 limit will be >> capable of running Xen guests in hvm mode, so PV isn't really a concern. >> > Hi Jeremy, > > Is the implication of that statement that HVM is preferred where > supported by HW? > I wouldn't go that far; the PV vs HVM choice is pretty complex, and depends on what your workload is and what hardware you have available. All I meant was what I said: that if you're running on a machine with a large amount of memory, then you should run your 32-bit domains as HVM rather than PV. Though Xen could easily keep domains limited to memory that they can actually use (it already does this, in fact). J -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html