Bad code in CPUM.CPP file

[scvetic]

Code in CPUM.CPP for overload CPUID instruction don't work. Code never been execute, and it is not posible to overload instruction. In OSE version is simple to corect this error.

[scvetic]

When I overload CPUID instruction, the guest OS detected overload data, but user program detected the original data (host CPU). I think guest OS-s are running in ring 1, and user space programs in ring 3, VirtualBox catch CPUID instruction only in ring 1 mode and then redirect, but he must catch in both mode.

[Sander van Leeuwen]

I don't understand what you mean by your bug description. CPUID overloading, as you call it, works fine.

As for ring 3 programs seeing the original host cpu, that works as designed. Changing this will have severe performance implications. We can only intercept cpuid in all contexts with hardware acceleration (VT-X & AMD-V).

[Sander van Leeuwen]

Closing it. Reopen if you wish to add something more.