__vmx_on
Microsoft Specific
This topic is new for Visual Studio 2005 SP1.
Activates virtual machine extensions (VMX) operation in the processor.
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>