---
title: efiRuntimeServicesVirtualPageStart
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 10.0+]
path: kernel/boot_args/1506897-efiruntimeservicesvirtualpagesta
---

# efiRuntimeServicesVirtualPageStart

## Declaration

```occ
uint64_t efiRuntimeServicesVirtualPageStart;
```