linux-kernel - Re: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels

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Date:	Sat, 12 Apr 2014 17:13:40 -0400
From:	Brian Gerst <brgerst@...il.com>
To:	Borislav Petkov <bp@...en8.de>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	stable <stable@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...ux.intel.com>
Subject: Re: [tip:x86/urgent] x86-64, modify_ldt: Ban 16-bit segments on
 64-bit kernels

On Sat, Apr 12, 2014 at 4:59 PM, Borislav Petkov <bp@...en8.de> wrote:
> On Sat, Apr 12, 2014 at 04:34:14PM -0400, Brian Gerst wrote:
>> 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.
>
> Are you saying, you've run your game in a guest and perf. is sucky?
>

Performance is bad in general, running a 32-bit Fedora 20 guest.
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