__vmx_on
The latest version of this topic can be found at __vmx_on.
Microsoft Specific**
Activates virtual machine extensions (VMX) operation in the processor.
Syntax
unsigned char __vmx_on(
unsigned __int64 *VmsSupportPhysicalAddress
);
Parameters
[in] VmsSupportPhysicalAddress
A pointer to a 64-bit physical address that points to a virtual-machine control structure (VMCS).
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, search for the document, "Intel Virtualization Technical Specification for the IA-32 Intel Architecture," document number C97063-002, at the Intel Corporation site.
Requirements
| Intrinsic | Architecture |
|---|---|
__vmx_on |
x64 |
Header file <intrin.h>