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 ; 01 Nov 2019 09:35:38 -0000 Received: from mail.kernel.org ([198.145.29.99]) by Galois.linutronix.de with esmtps (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1iQTLF-0006Vm-1A for speck@linutronix.de; Fri, 01 Nov 2019 10:35:38 +0100 Date: Fri, 1 Nov 2019 10:35:26 +0100 From: Greg KH Subject: [MODERATED] Re: ***UNCHECKED*** Re: [PATCH 3/9] TAA 3 Message-ID: <20191101093526.GA2758611@kroah.com> References: <580e02757c3e639bff00fcea830aa46eba46a92f.1571905227.git.bp@suse.de> <20191030132858.GA703436@kroah.com> <20191030172402.GB9730@guptapadev.amr> <20191030192758.GD709410@kroah.com> <20191030194440.GP31513@dhcp22.suse.cz> MIME-Version: 1.0 In-Reply-To: <20191030194440.GP31513@dhcp22.suse.cz> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit To: speck@linutronix.de List-ID: On Wed, Oct 30, 2019 at 08:44:40PM +0100, speck for Michal Hocko wrote: > On Wed 30-10-19 20:27:58, speck for Greg KH wrote: > > On Wed, Oct 30, 2019 at 10:24:03AM -0700, speck for Pawan Gupta wrote: > > > On Wed, Oct 30, 2019 at 02:28:58PM +0100, speck for Greg KH wrote: > > > > On Wed, Oct 23, 2019 at 11:01:53AM +0200, speck for Pawan Gupta wrote: > > > > > From: Pawan Gupta > > > > > Subject: [PATCH 3/9] x86/cpu: Add a "tsx=" cmdline option with TSX disabled by > > > > > default > > > > > > > > > > > > > As late at this is, I really would like to change the name here. We > > > > already have a powerpc command line option to disable this for those > > > > chips, and we should use the same name here as well. > > > > > > I think powerpc calls it "ppc_tm=". We can't obviously change to this. > > > > > > ppc_tm= [PPC] > > > Format: {"off"} > > > Disable Hardware Transactional Memory > > > > No, but we can use "tm", and PPC said they would drop the "ppc_" prefix > > and use the generic flag as well. "Transactional Memory" is the generic > > term for this from what I can tell. > > Are those two (tsx and tm) going to have the same semantic? I have > little doubts TBH considering how tsx itself is tricky. Ugh, turns out gmail was marking all of these threads as spam, that answers my "why is this list so quiet?" question :( Anyway, yes, TM shoudl have the same semantic. But, if it's too late at the moment, we can always unify this later on if PPC really wants it. I was just passing on what those developers told me. As the bundles are all set to go now, I'm not going to press the issue. thanks, greg k-h