Commit a8a7c02b authored by Liran Alon's avatar Liran Alon Committed by Paolo Bonzini

KVM: nVMX: Verify VMCS shadowing controls

Signed-off-by: default avatarLiran Alon <liran.alon@oracle.com>
Signed-off-by: default avatarJim Mattson <jmattson@google.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent f792d274
......@@ -11038,6 +11038,19 @@ static int nested_vmx_check_pml_controls(struct kvm_vcpu *vcpu,
return 0;
}
static int nested_vmx_check_shadow_vmcs_controls(struct kvm_vcpu *vcpu,
struct vmcs12 *vmcs12)
{
if (!nested_cpu_has_shadow_vmcs(vmcs12))
return 0;
if (!page_address_valid(vcpu, vmcs12->vmread_bitmap) ||
!page_address_valid(vcpu, vmcs12->vmwrite_bitmap))
return -EINVAL;
return 0;
}
static int nested_vmx_msr_check_common(struct kvm_vcpu *vcpu,
struct vmx_msr_entry *e)
{
......@@ -11639,6 +11652,9 @@ static int check_vmentry_prereqs(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
if (nested_vmx_check_pml_controls(vcpu, vmcs12))
return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
if (nested_vmx_check_shadow_vmcs_controls(vcpu, vmcs12))
return VMXERR_ENTRY_INVALID_CONTROL_FIELD;
if (!vmx_control_verify(vmcs12->cpu_based_vm_exec_control,
vmx->nested.msrs.procbased_ctls_low,
vmx->nested.msrs.procbased_ctls_high) ||
......
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