Messages in this thread | | | Date | Thu, 08 Jul 2010 22:33:08 -0700 | From | Jeremy Fitzhardinge <> | Subject | Re: [PATCH 1/2] x86: ioremap: fix wrong physical address handling |
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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
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