Messages in this thread Patch in this message | | | From | Maxim Levitsky <> | Subject | [PATCH v2 6/6] KVM: nVMX: avoid loading PDPTRs after migration when possible | Date | Mon, 26 Apr 2021 14:13:33 +0300 |
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if new KVM_*_SREGS2 ioctls are used, the PDPTRs are a part of the migration state and are correctly restored by those ioctls.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> --- arch/x86/kvm/vmx/nested.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index 764781ab805b..743a832d6caf 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -3122,7 +3122,8 @@ static bool nested_get_vmcs12_pages(struct kvm_vcpu *vcpu) struct page *page; u64 hpa; - if (!nested_cpu_has_ept(vmcs12) && is_pae_paging(vcpu)) { + if (vcpu->arch.pdptr_reload_on_nesting_needed && + !nested_cpu_has_ept(vmcs12) && is_pae_paging(vcpu)) { /* * Reload the guest's PDPTRs since after a migration * the guest CR3 might be restored prior to setting the nested -- 2.26.2
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