__vmx_on
Microsoft Specific
Activates virtual machine extensions (VMX) operation in the processor.
Syntax
unsigned char __vmx_on(
unsigned __int64 *VmxonRegionPhysicalAddress
);
Parameters
VmxonRegionPhysicalAddress
[in] A pointer to a 64-bit, 4KB-aligned physical address that points to a VMXON region.
Return value
| Value | Meaning |
|---|---|
| 0 | The operation succeeded. |
| 1 | The operation failed with extended status available in the VM-instruction error field of the current VMCS. |
| 2 | The operation failed without status available. |
Remarks
The __vmx_on function corresponds to the VMXON machine instruction. This function supports the interaction of a host's virtual machine monitor with a guest operating system and its applications. For more information, see "Intel 64 and IA-32 Architectures Software Developer's Manual, Volume 3C: System Programming Guide, Part 3" in the Intel 64 and IA-32 Architecture Developer Manuals.
Requirements
| Intrinsic | Architecture |
|---|---|
__vmx_on |
x64 |
Header file <intrin.h>
END Microsoft Specific