Hello, El 16/06/15 a les 7.42, Manish Jaggi ha escrit: [...] >>>> Beware that the 1:1 mapping doesn't fit with the current guest memory >>>> layout which is pre-defined at Xen build time. So you would also have >>>> to make it dynamically or decide to use the same memory layout as the >>>> host. >>> If same layout as host used, would there be any issue? >> I'm not sure that a 1:1 mapping is any different to the host layout. But >> in any case, the host layout also doesn't match the guest layout, so it >> has the same issues. > There is a domctl on x86 DOMCTL_iomem_permission which looks doing the > same thing as the map_mmio hypercall which I am proposing. I am not sure > if it does a 1:1. Do you have more info on it?
No, this hypercall only sets the permissions of IO memory ranges, but AFAICT it doesn't touch the p2m at all. Roger. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
