nagai/kernel
3
0
Fork 0
forked from mirrors/linux
Code Pull requests Activity

KVM: nSVM: move MMU setup to nested_prepare_vmcb_control

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

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2020-05-22 05:27:46 -04:00
parent f241d711b2
commit 69cb877487
1 changed files with 6 additions and 6 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

12
arch/x86/kvm/svm/nested.c
View file

@ -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) 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 */ /* Load the nested guest state */
svm->vmcb->save.es = nested_vmcb->save.es; svm->vmcb->save.es = nested_vmcb->save.es;
svm->vmcb->save.cs = nested_vmcb->save.cs; 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); svm_set_cr4(&svm->vcpu, nested_vmcb->save.cr4);
(void)kvm_set_cr3(&svm->vcpu, nested_vmcb->save.cr3); (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; svm->vmcb->save.cr2 = svm->vcpu.arch.cr2 = nested_vmcb->save.cr2;
kvm_rax_write(&svm->vcpu, nested_vmcb->save.rax); kvm_rax_write(&svm->vcpu, nested_vmcb->save.rax);
kvm_rsp_write(&svm->vcpu, nested_vmcb->save.rsp); 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) 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); svm_flush_tlb(&svm->vcpu);
if (nested_vmcb->control.int_ctl & V_INTR_MASKING_MASK) if (nested_vmcb->control.int_ctl & V_INTR_MASKING_MASK)
svm->vcpu.arch.hflags |= HF_VINTR_MASK; svm->vcpu.arch.hflags |= HF_VINTR_MASK;