From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BBCA2C433B4 for ; Tue, 18 May 2021 22:37:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9EED460232 for ; Tue, 18 May 2021 22:37:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352784AbhERWiW (ORCPT ); Tue, 18 May 2021 18:38:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52716 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230251AbhERWiV (ORCPT ); Tue, 18 May 2021 18:38:21 -0400 Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 30392C06175F for ; Tue, 18 May 2021 15:37:03 -0700 (PDT) Received: by mail-pj1-x1031.google.com with SMTP id b13-20020a17090a8c8db029015cd97baea9so2488660pjo.0 for ; Tue, 18 May 2021 15:37:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=ErYWLyExEuHgygjqniSukEyiBQDpGUTXfvaJIDoXeZ8=; b=B45vMhf2Sh7k8DFsMCvVfJjP97JbxlYZhUBQe40WF631th1jdvO5xcR0NwLsM6xmZ/ OBFI6aZbhHTDUct0J0bF6me+ITM483gD1TK4KcNvcN+CLPJ5Wiv+0XOnXfIjyODLHlps y0kHY69e2q+PF21u7tdyWBe5g/Ul9MGFB732qtoJ1dl8rbCvmxDk99/Fp6wgOQoWvP6k P0CLHb33oLB856ISGTHEax+pgCwg4KVd21HooUXvvlS0pFX5nuMKBFjzVQDwAT52UNuN JEYnlJBQI5i9Vm5RCQdkwA32pIa3Mdf8KqUU6p/NBuGfu7fNt2oiHXXkGkSq4xld4vT/ GUsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=ErYWLyExEuHgygjqniSukEyiBQDpGUTXfvaJIDoXeZ8=; b=TAUpj138zWaiJgPUblb8GdzK4fIK/8T7pEnB4oOjS4cn+9RbZU8GxMLB52OLmIYTfo KCp4FG2pD7Qw6RO5ltRRspiioDehqbx/yYba1Uo5mFCKztBqvlIhdZ7uokqwl7y+ZYPo UIGFswIBCAwhng6uiYbaejc194tDq89iErTVc0ZnhHCKKWvbGdS/S9OSH44pyQ/JcBTJ 9sBosXlpGWfY3Re5EJGIJ7yLjcARi0kxkYWQwkjj6FTniEHRq84yAm1/qHyrQGG7nlJJ MkgoxxpVW9eNUlXAdMtezBHbKFvLI3T0MuLjxQKDPwTorDVenpGw3oNW3sXpW7wtdkId xRKQ== X-Gm-Message-State: AOAM5300v6kcIcjD/bJiESWUBM8lcLTpmP1M/z/SAJPBpWtAZiFuk6Tr 1QAMC1RKOxCuq8K1YTvAHlGrUQ== X-Google-Smtp-Source: ABdhPJzmWfrT1mZ2JQVyt3Hix2SH44mhR3YvHd/95Jvgq+OwAsGfPbhPR1gFC0jClAMbSWGpXmYgHA== X-Received: by 2002:a17:90a:8d82:: with SMTP id d2mr7880767pjo.200.1621377422589; Tue, 18 May 2021 15:37:02 -0700 (PDT) Received: from google.com (240.111.247.35.bc.googleusercontent.com. [35.247.111.240]) by smtp.gmail.com with ESMTPSA id r11sm13583901pgl.34.2021.05.18.15.37.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 May 2021 15:37:01 -0700 (PDT) Date: Tue, 18 May 2021 22:36:58 +0000 From: Sean Christopherson To: Ilias Stamatis Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com, mlevitsk@redhat.com, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org, zamsden@gmail.com, mtosatti@redhat.com, dwmw@amazon.co.uk Subject: Re: [PATCH v2 01/10] math64.h: Add mul_s64_u64_shr() Message-ID: References: <20210512150945.4591-1-ilstam@amazon.com> <20210512150945.4591-2-ilstam@amazon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210512150945.4591-2-ilstam@amazon.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 12, 2021, Ilias Stamatis wrote: > This function is needed for the nested TSC scaling code where we need to s/the nested/KVM's nested virtualization. Non-KVM folk will have no idea what "nested" means without context. They may know not what nested virtualization is, but this will at least give them a starting point for asking the right questions. > multiply the signed TSC offset with the unsigned TSC multiplier.