Messages in this thread | | | Date | Wed, 17 Nov 2021 08:31:17 +0100 | Subject | Re: Thoughts of AMX KVM support based on latest kernel | From | Paolo Bonzini <> |
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On 11/17/21 05:52, Nakajima, Jun wrote: > If a (creative) guest wants to set XFD[AMX] = 1 for fun while keeping > AMX state alive without saving the AXM state, it may lose the state > after VM exit/entry.
I think this should not happen, unless you also document that other random events (hypothetically, it could be some other core using AMX?) can cause the loss of XTILEDATA if XFD[AMX]=1. Virtualization should not be special, I'd prefer that the guest has the same behavior as bare metal in this respect.
Paolo
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