Re: [PATCH 0/4] x86: enable User-Mode Instruction Prevention

[One Thousand Gnomes]

> I took a closer look at the dosemu code. It appears that it does not

That doesn't tell you want DOS itself will try and do...

> purposely utilize SGDT to obtain the descriptor table while in vm86. It
> does use SGDT (in protected mode) to emulate certain functionality such
> as the Virtual xxx Driver. In such a case, UMIP needs to be disabled.
> However, this code seems to be disabled [1]. dosemu includes an i386
> emulator that in some cases uses the actual instructions of the host
> system. In such cases, UMIP might be needed to be disabled.

Is anyone actually still using DOSemu these days or are people all
using DOSbox ?

Alan