On Fri, Jun 25, 2021 at 12:25:46PM +0200, Paolo Bonzini wrote: > On 25/06/21 11:29, Yu Zhang wrote: > > Thanks, Paolo. > > > > Do you mean the L1 can modify its paging mode by setting HOST_CR3 as root of > > a PML5 table in VMCS12 and HOST_CR4 with LA57 flipped in VMCS12, causing the > > GUEST_CR3/4 being changed in VMCS01, and eventually updating the CR3/4 when > > L0 is injecting a VM Exit from L2? > > Yes, you can even do that without a "full" vmentry by setting invalid guest > state in vmcs12. :) Hah.. Interesting. :) I think this is what load_vmcs12_host_state() does. Anyway, thanks a lot for the explanation! Also my reviewed-by for this one. Rviewed-by: Yu Zhang <yu.c.zhang@xxxxxxxxxxxxxxx> B.R. Yu
