Messages in this thread | | | From | "Luck, Tony" <> | Subject | RE: [PATCH v4 06/17] PCI: add SIOV and IMS capability detection | Date | Fri, 13 Nov 2020 16:12:39 +0000 |
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> Of course is this not only an x86 problem. Every architecture which > supports virtualization has the same issue. ARM(64) has no way to tell > for sure whether the machine runs bare metal either. No idea about the > other architectures.
Sounds like a hypervisor problem. If the VMM provides perfect emulation of every weird quirk of h/w, then it is OK to let the guest believe that it is running on bare metal.
If it isn't perfect, then it should make sure the guest knows *for sure*, so that the guest can take appropriate actions to avoid the sharp edges.
-Tony
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