x86/KVM/nVMX: don't use clean fields data on enlightened VMLAUNCH

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Apparently, Windows doesn't maintain clean fields data after it does
VMCLEAR for an enlightened VMCS so we can only use it on VMRESUME.
The issue went unnoticed because currently we do nested_release_evmcs()
in handle_vmclear() and the consecutive enlightened VMPTRLD invalidates
clean fields when a new eVMCS is mapped but we're going to change the
logic.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Vitaly Kuznetsov 2019-06-28 13:23:32 +02:00 • committed by Paolo Bonzini

parent 95c5c7c77c

commit a21a39c206

1 changed files with 12 additions and 8 deletions

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arch/x86/kvm/vmx/nested.c

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