From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ua1-x931.google.com (mail-ua1-x931.google.com [IPv6:2607:f8b0:4864:20::931]) by sourceware.org (Postfix) with ESMTPS id 4B2EF3858C27 for ; Wed, 31 Mar 2021 21:42:21 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 4B2EF3858C27 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=ocallahan.org Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=rocallahan@gmail.com Received: by mail-ua1-x931.google.com with SMTP id f4so2024972uad.12 for ; Wed, 31 Mar 2021 14:42:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ocallahan-org.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:reply-to:from:date:message-id :subject:to:cc; bh=Dm0wbOpFh785zQvfbpu+Gc+GoqlFqm/RgMC8mqoD454=; b=WErKMdfwEEzxHs7ggw/O2PQZpwoXB2Iotis7qJYEo0LRMCZXsa+qYkwiSOCFmPYHSa Liu6m1KZBi2RPMTFSN6sNzBiRYruN286prnZ5ftunCiK7tKu5bIHt7mBwhOZ+H7HTnQF AKw0Au9LcsoOAs4NgfVmrL8a+W37Ub2+pqsY//5W3xDYPFdqHmnlsRvQamuZLFdncL2z YjmXe8tXjicjVLSxR0u/VH82Ks94K1sTf8f16ZZnvDYLVWE73Fx/MusoAtKEfKGRqc+q 4w7yY9ULAMo/gfWNdh0RakFn36LylnUnn4LIU8KJ+f37gOVtSFeTCeaY3Zj+mBqxwgFz qLMQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:reply-to :from:date:message-id:subject:to:cc; bh=Dm0wbOpFh785zQvfbpu+Gc+GoqlFqm/RgMC8mqoD454=; b=GhU91kJifcEjL6q6CPN7kLjr6yXdR2SZlxYB5HVqJ+yiaa9nPrm7QlleMxQrSXh4Hy chbayqadpokU253TIgy81H4Rzkxfh5whSn9EF5Ozrn+h3phG5TrgiuKImsvwe+lVeT3l D/ujBIWw5hR5vUUNrZoRHeO7EGt/rIWfmeJNWNR7Z1Lf8T474YT2ddYVNsKyE8dbhlU1 p6pWLtMYUDSWS6Uc2ZQQpgyxuY+w2DmWGmZmLguIYOlyUfpuAGq8o/t8j26EI5dsHyvE 2meUBiVMaFCqsqrnq3N8gJWFaLWgufh2ZFIEMzgtkI2wAU71IeQXzgXf60lM6SAr8/gs nj0Q== X-Gm-Message-State: AOAM530tpLXy4Hv4GPndMnMe8vB4EzgoHgEoIhKJ+qAHNwipunsRUAcG fSpyNWTt9tdF/rUMEiTDR4ibuMpy1Es27MEk7wE= X-Google-Smtp-Source: ABdhPJzQXGO7xNMfiF+fsWwrOhWMH2IoZPkeQ1c/q0a5akhIsplUSQbq7ZQS2Km1iImMQjHLVJxaxaOJ6yhhEwdPiGs= X-Received: by 2002:ab0:4042:: with SMTP id h60mr3070914uad.133.1617226940932; Wed, 31 Mar 2021 14:42:20 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Reply-To: robert@ocallahan.org From: "Robert O'Callahan" Date: Thu, 1 Apr 2021 10:42:09 +1300 Message-ID: Subject: Re: Candidate Linux ABI for Intel AMX and hypothetical new related features To: Andy Lutomirski Cc: Len Brown , David Laight , Dave Hansen , Andy Lutomirski , Greg KH , "Bae, Chang Seok" , X86 ML , LKML , libc-alpha , Florian Weimer , Rich Felker , Kyle Huey , Keno Fischer , Linux API Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 31 Mar 2021 21:42:23 -0000 For the record, the benefits of dynamic XCR0 for rr recording portability still apply. I guess it'd be useful for CRIU too. We would also benefit from anything that incentivizes increased support for CPUID faulting. Rob -- Su ot deraeppa sah dna Rehtaf eht htiw saw hcihw, efil lanrete eht uoy ot mialcorp ew dna, ti ot yfitset dna ti nees evah ew; deraeppa efil eht. Efil fo Drow eht gninrecnoc mialcorp ew siht - dehcuot evah sdnah ruo dna ta dekool evah ew hcihw, seye ruo htiw nees evah ew hcihw, draeh evah ew hcihw, gninnigeb eht morf saw hcihw taht.