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Re: [Xen-devel] Remapping memory in a HVM DomU from one pfn to another?
| To: | James Harper <james.harper@xxxxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Remapping memory in a HVM DomU from one pfn to another? |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Tue, 10 Jun 2008 13:15:05 +0100 |
| Delivery-date: | Tue, 10 Jun 2008 05:15:47 -0700 |
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| Thread-topic: | [Xen-devel] Remapping memory in a HVM DomU from one pfn to another? |
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On 10/6/08 13:02, "James Harper" <james.harper@xxxxxxxxxxxxxxxx> wrote: >> XENMEM_exchange. Look at 'struct xen_memory_exchange' in >> xen/include/public/memory.h. Note that GMFN means PFN for an HVM > guest. >> Hopefully it is all self-explanatory enough. >> > > I tried it and 'xm dmesg' says: > > (XEN) hvm.c:747:d11 memory_op 11. > > And looking in hvm.c, it appears that this occurs in > do_memory_op_compat32(...) and the only supported memory_op function is > XENMEM_add_to_physmap. Does that mean I'm out of luck? It does for now. We should be using the existing PV 32-on-64 compat shim for memory_op() hypercall for HVM 32-on-64 too. As soon as someone does that work, this hypercall will be available to you. It would already work for HVM 64-on-64 or 32-on-32. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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