"H. Peter Anvin" writes:
> From: "H. Peter Anvin"
>
> This patch implements Supervisor Mode Execution Prevention (SMEP) and
> Supervisor Mode Access Prevention (SMAP) for x86. The purpose of the
> patch, obviously, is to help kernel developers debug the support for
> those features.
>
> A fair
On 09/26/2012 12:50 PM, Anthony Liguori wrote:
>
> The patch looks good except for these two chunks. This would break live
> migration from a new QEMU to an old one because CPUs are currently not
> versioned.
>
> If you just remove these two chunks, the patch can be applied and you
> can still t
From: "H. Peter Anvin"
This patch implements Supervisor Mode Execution Prevention (SMEP) and
Supervisor Mode Access Prevention (SMAP) for x86. The purpose of the
patch, obviously, is to help kernel developers debug the support for
those features.
A fair bit of the code relates to the handling o
