This topic is new for Visual Studio 2005 SP1.
Stores a subset of processor state in the specified virtual machine control block (VMCB).
The __svm_vmsave function is equivalent to the VMSAVE 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, "AMD64 Architecture Programmer's Manual Volume 2: System Programming," document number 24593, revision 3.11 or later, at the AMD Corporation site.