A method includes, with a guest, executing a first virtual machine function, determining a first pointer value stored in a register of a processor running on the host system while the first virtual machine function is executed, the first pointer value pointing to a first page table corresponding to a default page table, the first page table indicating that the guest has access to a first privileged page, switching to the first page table, executing a second virtual machine function, the second virtual machine function, determining a second pointer value stored in the register of the processor while the second virtual machine function is executed, the second pointer value pointing to a second page table corresponding to the default page table, the second page table that indicates that the guest has access to a second privileged page, and switching to the second page table.