version 1.178, 2020/11/14 01:00:40
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version 1.179, 2020/11/15 14:11:07
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Line 8 systems which operate in an unprivileged
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Line 8 systems which operate in an unprivileged
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from the domU systems are forwarded by the Xen hypervisor to the dom0 to be |
from the domU systems are forwarded by the Xen hypervisor to the dom0 to be |
fulfilled. |
fulfilled. |
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Xen supports different styles of guests; see [PV on HVM](https://wiki.xen.org/wiki/PV_on_HVM) and [PVH(v2)](https://wiki.xenproject.org/wiki/PVH_(v2)_Domu) for upstream documentation. |
Xen supports different styles of guests; see [PV on HVM](https://wiki.xen.org/wiki/PV_on_HVM) and [PVH(v2)](https://wiki.xenproject.org/wiki/PVH_(v2\)_Domu) for upstream documentation. |
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[[!table data=""" |
[[!table data=""" |
Style of guest |Supported by NetBSD |
Style of guest |Supported by NetBSD |
Line 29 The dom0 runs qemu to emulate hardware.
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Line 29 The dom0 runs qemu to emulate hardware.
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In PVHVM mode, the guest runs as HVM, but additionally can use PV |
In PVHVM mode, the guest runs as HVM, but additionally can use PV |
drivers for efficiency. |
drivers for efficiency. |
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In PVHv2H mode, operation is similar to PVHVM, except that qemu is not |
In PVHv2 mode, operation is similar to PVHVM, except that qemu is not |
run and thus the PV interfaces for console, disks, networking are the |
run and thus the PV interfaces for console, disks, networking are the |
only way to access these resources. |
only way to access these resources. (There was an original PVH mode |
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that is no longer in use, and now, sometimes PVHv2 is referred to as |
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simply PVH.) |
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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 |