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Diff for /wikisrc/ports/xen/howto.mdwn between versions 1.115 and 1.116

version 1.115, 2016/12/20 13:16:43 version 1.116, 2016/12/20 14:52:43
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 Generally any amd64 machine will work with Xen and PV guests.  In  Generally any amd64 machine will work with Xen and PV guests.  In
 theory i386 computers without amd64 support can be used for Xen <=  theory i386 computers without amd64 support can be used for Xen <=
 4.2, but we have no recent reports of this working (this is a hint).  4.2, but we have no recent reports of this working (this is a hint).
 For HVM guests, the VT or VMX CPU feature (Intel) or SVM/HVM/VT  For HVM guests, hardware support is needed, but it is common on recent
 (amd64) is needed; "cpuctl identify 0" will show this.  TODO: Clean up  machines.  For Intel CPUs, one needs the VT-x extension, shown in
 and check the above features.  "cpuctl identify 0" as VMX.  For AMD CPus, one needs the AMD-V
   extensions, shown in "cpuctl identify 0" as SVM.  There are further
   features for IOMMU virtualization, Intel's VT-d and AMD's AMD-Vi.
   TODO: Explain whether Xen on NetBSD makes use of these features.
   TODO: Review by someone who really understands this.
   
 At boot, the dom0 kernel is loaded as a module with Xen as the kernel.  At boot, the dom0 kernel is loaded as a module with Xen as the kernel.
 The dom0 can start one or more domUs.  (Booting is explained in detail  The dom0 can start one or more domUs.  (Booting is explained in detail
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