Messages in this thread | | | Date | Sat, 12 Apr 2014 16:34:14 -0400 | Subject | Re: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels | From | Brian Gerst <> |
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On Sat, Apr 12, 2014 at 4:11 PM, Borislav Petkov <bp@alien8.de> wrote: > On Sat, Apr 12, 2014 at 12:44:42PM -0700, H. Peter Anvin wrote: >> Run a 32-bit VM. The 32-bit kernel does this right. > > Yes, even better. > >> I suspect it would also work fine in a Qemu user mode guest (is >> this supported by KVM?), in a ReactOS VM, or some other number of >> combinations. > > Right. > > So basically, there a lot of different virt scenarios which can all take > care of those use cases *without* encumbering some insane solutions on > 64-bit. > >> The real question is how many real users are actually affected. > > And if they are, virtualize them, for chrissake. It is time we finally > used virt for maybe one of its major use cases - virtualize old/obscure > hw. It should be pretty reliable by now. > > :-P > > -- > Regards/Gruss, > Boris. > > Sent from a fat crate under my desk. Formatting is fine. > --
My experience with kvm so far is that is slow and clunky. It may be OK for a server environment, but interactively it's difficult to use.
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