[11/28] KVM: nSVM: move MMU setup to nested_prepare_vmcb_control

Commit Message

Paolo Bonzini May 26, 2020, 5:22 p.m. UTC

Everything that is needed during nested state restore is now part of
nested_prepare_vmcb_control.

Signed-off-by: Paolo Bonzini <[e-mail]>
---
 arch/x86/kvm/svm/nested.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Patch

diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index af7c9ce8c5ad..7fbd7aaa4ce0 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -247,9 +247,6 @@  static void load_nested_vmcb_control(struct vcpu_svm *svm,
 
 static void nested_prepare_vmcb_save(struct vcpu_svm *svm, struct vmcb *nested_vmcb)
 {
-	if (nested_vmcb->control.nested_ctl & SVM_NESTED_CTL_NP_ENABLE)
-		nested_svm_init_mmu_context(&svm->vcpu);
-
 	/* Load the nested guest state */
 	svm->vmcb->save.es = nested_vmcb->save.es;
 	svm->vmcb->save.cs = nested_vmcb->save.cs;
@@ -263,9 +260,6 @@  static void nested_prepare_vmcb_save(struct vcpu_svm *svm, struct vmcb *nested_v
 	svm_set_cr4(&svm->vcpu, nested_vmcb->save.cr4);
 	(void)kvm_set_cr3(&svm->vcpu, nested_vmcb->save.cr3);
 
-	/* Guest paging mode is active - reset mmu */
-	kvm_mmu_reset_context(&svm->vcpu);
-
 	svm->vmcb->save.cr2 = svm->vcpu.arch.cr2 = nested_vmcb->save.cr2;
 	kvm_rax_write(&svm->vcpu, nested_vmcb->save.rax);
 	kvm_rsp_write(&svm->vcpu, nested_vmcb->save.rsp);
@@ -282,6 +276,12 @@  static void nested_prepare_vmcb_save(struct vcpu_svm *svm, struct vmcb *nested_v
 
 static void nested_prepare_vmcb_control(struct vcpu_svm *svm, struct vmcb *nested_vmcb)
 {
+	if (nested_vmcb->control.nested_ctl & SVM_NESTED_CTL_NP_ENABLE)
+		nested_svm_init_mmu_context(&svm->vcpu);
+
+	/* Guest paging mode is active - reset mmu */
+	kvm_mmu_reset_context(&svm->vcpu);
+
 	svm_flush_tlb(&svm->vcpu);
 	if (nested_vmcb->control.int_ctl & V_INTR_MASKING_MASK)
 		svm->vcpu.arch.hflags |= HF_VINTR_MASK;