Re: several messages
From: Borislav Petkov
Date: Fri Jan 29 2016 - 08:21:26 EST
On Wed, Jan 27, 2016 at 11:09:04AM +0100, Thomas Gleixner wrote:
> On Mon, 25 Jan 2016, Andy Lutomirski wrote:
> > This is a straightforward speedup on Ivy Bridge and newer, IIRC.
> > (I tested on Skylake. INVPCID is not available on Sandy Bridge.
> > I don't have Ivy Bridge, Haswell or Broadwell to test on, so I
> > could be wrong as to when the feature was introduced.)
> Haswell and Broadwell have it. No idea about ivy bridge.
I have an IVB model 58. It doesn't have it:
CPUID_0x00000007: EAX=0x00000000, EBX=0x00000281, ECX=0x00000000, EDX=0x00000000
INVPCID should be EBX.
ECO tip #101: Trim your mails when you reply.