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nVMX x86: Make nested_vmx_check_pml_controls() concise

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Suggested-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Reviewed-by: Mark Kanda <mark.kanda@oracle.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Krish Sadhukhan 2018-09-27 14:33:27 -04:00 committed by Paolo Bonzini
parent 3ff519f29d
commit 55c1dcd80b
1 changed files with 5 additions and 8 deletions
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13
arch/x86/kvm/vmx.c
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@ -11779,15 +11779,12 @@ static int nested_vmx_check_msr_switch_controls(struct kvm_vcpu *vcpu,
static int nested_vmx_check_pml_controls(struct kvm_vcpu *vcpu,
struct vmcs12 *vmcs12)
{
u64 address = vmcs12->pml_address;
int maxphyaddr = cpuid_maxphyaddr(vcpu);
if (!nested_cpu_has_pml(vmcs12))
return 0;
if (nested_cpu_has2(vmcs12, SECONDARY_EXEC_ENABLE_PML)) {
if (!nested_cpu_has_ept(vmcs12) ||
!IS_ALIGNED(address, 4096) ||
address >> maxphyaddr)
return -EINVAL;
}
if (!nested_cpu_has_ept(vmcs12) ||
!page_address_valid(vcpu, vmcs12->pml_address))
return -EINVAL;
return 0;
}