Messages in this thread | | | Subject | Re: [PATCH 05/54] Revert "KVM: x86/mmu: Drop kvm_mmu_extended_role.cr4_la57 hack" | From | Paolo Bonzini <> | Date | Fri, 25 Jun 2021 10:57:51 +0200 |
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On 25/06/21 10:47, Yu Zhang wrote: >> But if L1 is crafty, it can load a new CR4 on VM-Exit and toggle LA57 >> without having to bounce through an unpaged section. L1 can also load a > > May I ask how this is done by the guest? Thanks!
It can set HOST_CR3 and HOST_CR4 to a value that is different from the one on vmentry.
Paolo
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