[MODERATED] Re: [PATCH 1/2] more sampling fun 1

[mark gross <mgross@linux.intel.com>]

On Thu, Feb 20, 2020 at 11:07:45AM +0100, speck for Borislav Petkov wrote:
> On Thu, Feb 06, 2020 at 02:11:02PM -0800, speck for mark gross wrote:
> > From: mark gross <mgross@linux.intel.com>
> > Subject: [PATCH 1/2] Add capability to specify a range of steppings in the
> > 
> > Intel has produced processors with the same CPUID family+model. Code
> > may need to check the stepping when programming model specific behavior.
> > 
> > Add an API to allow easy specification of stepping or range of steppings
> > with a 16 bit bitmask.
> > 
> > Update cpu_vuln_whitelist using this new API.
> > 
> > I implemented this in the way I did to avoid modifying x86_cpu_id as
> > that structure is an exported ABI and any change would impact user mode
> > code using the structure.
> > 
> > Signed-off-by: mark gross <mgross@linux.intel.com>
> > Reviewed-by: tony luck <tony.luck@intel.com>
> > ---
> >  arch/x86/include/asm/cpu_device_id.h | 12 ++++++++++++
> >  arch/x86/kernel/cpu/common.c         | 28 ++++++++++++++--------------
> >  arch/x86/kernel/cpu/match.c          | 26 ++++++++++++++++++++++++++
> >  3 files changed, 52 insertions(+), 14 deletions(-)
> 
> Why isn't this sent to lkml like a normal patch?
Because its only needed in the context of the WIP mitigation patch that I'm
having issues sending propperly.

Sigh, I guess I'll just put it in a reply.

--mark

> 
> -- 
> Regards/Gruss,
>     Boris.
> 
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