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SubjectRe: [PATCH 05/54] Revert "KVM: x86/mmu: Drop kvm_mmu_extended_role.cr4_la57 hack"
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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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