From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linutronix.de (193.142.43.55:993) by crypto-ml.lab.linutronix.de with IMAP4-SSL for ; 20 Feb 2020 17:53:47 -0000 Received: from mga17.intel.com ([192.55.52.151]) by Galois.linutronix.de with esmtps (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1j4q1C-0004bV-Gg for speck@linutronix.de; Thu, 20 Feb 2020 18:53:46 +0100 Date: Thu, 20 Feb 2020 09:53:40 -0800 From: mark gross Subject: [MODERATED] Re: [PATCH 1/2] more sampling fun 1 Message-ID: <20200220175340.GD58564@mtg-dev.jf.intel.com> Reply-To: mgross@linux.intel.com References: <20200220100745.GA30404@zn.tnic> MIME-Version: 1.0 In-Reply-To: <20200220100745.GA30404@zn.tnic> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable To: speck@linutronix.de List-ID: 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 > > Subject: [PATCH 1/2] Add capability to specify a range of steppings in the > >=20 > > Intel has produced processors with the same CPUID family+model. Code > > may need to check the stepping when programming model specific behavior. > >=20 > > Add an API to allow easy specification of stepping or range of steppings > > with a 16 bit bitmask. > >=20 > > Update cpu_vuln_whitelist using this new API. > >=20 > > 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. > >=20 > > Signed-off-by: mark gross > > Reviewed-by: tony luck > > --- > > 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(-) >=20 > 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 >=20 > --=20 > Regards/Gruss, > Boris. >=20 > SUSE Software Solutions Germany GmbH, GF: Felix Imend=C3=B6rffer, HRB 36809= , AG N=C3=BCrnberg > --=20