diff options
| -rw-r--r-- | arch/x86/kvm/svm.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index f11f88005c2..df795bcebd2 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1567,6 +1567,38 @@ static int nested_svm_exit_handled(struct vcpu_svm *svm, bool kvm_override) nested_svm_exit_handled_real); } +static inline void copy_vmcb_control_area(struct vmcb *dst_vmcb, struct vmcb *from_vmcb) +{ + struct vmcb_control_area *dst = &dst_vmcb->control; + struct vmcb_control_area *from = &from_vmcb->control; + + dst->intercept_cr_read = from->intercept_cr_read; + dst->intercept_cr_write = from->intercept_cr_write; + dst->intercept_dr_read = from->intercept_dr_read; + dst->intercept_dr_write = from->intercept_dr_write; + dst->intercept_exceptions = from->intercept_exceptions; + dst->intercept = from->intercept; + dst->iopm_base_pa = from->iopm_base_pa; + dst->msrpm_base_pa = from->msrpm_base_pa; + dst->tsc_offset = from->tsc_offset; + dst->asid = from->asid; + dst->tlb_ctl = from->tlb_ctl; + dst->int_ctl = from->int_ctl; + dst->int_vector = from->int_vector; + dst->int_state = from->int_state; + dst->exit_code = from->exit_code; + dst->exit_code_hi = from->exit_code_hi; + dst->exit_info_1 = from->exit_info_1; + dst->exit_info_2 = from->exit_info_2; + dst->exit_int_info = from->exit_int_info; + dst->exit_int_info_err = from->exit_int_info_err; + dst->nested_ctl = from->nested_ctl; + dst->event_inj = from->event_inj; + dst->event_inj_err = from->event_inj_err; + dst->nested_cr3 = from->nested_cr3; + dst->lbr_ctl = from->lbr_ctl; +} + static int nested_svm_vmexit_real(struct vcpu_svm *svm, void *arg1, void *arg2, void *opaque) { @@ -1612,7 +1644,7 @@ static int nested_svm_vmexit_real(struct vcpu_svm *svm, void *arg1, nested_vmcb->control.int_ctl &= ~V_INTR_MASKING_MASK; /* Restore the original control entries */ - svm->vmcb->control = hsave->control; + copy_vmcb_control_area(vmcb, hsave); /* Kill any pending exceptions */ if (svm->vcpu.arch.exception.pending == true) @@ -1710,7 +1742,7 @@ static int nested_svm_vmrun(struct vcpu_svm *svm, void *arg1, else hsave->save.cr3 = svm->vcpu.arch.cr3; - hsave->control = vmcb->control; + copy_vmcb_control_area(hsave, vmcb); if (svm->vmcb->save.rflags & X86_EFLAGS_IF) svm->vcpu.arch.hflags |= HF_HIF_MASK; |