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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E6837E748E9 for ; Sun, 1 Oct 2023 12:18:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234926AbjJAMSC (ORCPT ); Sun, 1 Oct 2023 08:18:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232837AbjJAMSA (ORCPT ); Sun, 1 Oct 2023 08:18:00 -0400 Received: from mail-ed1-x52c.google.com (mail-ed1-x52c.google.com [IPv6:2a00:1450:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E098F94 for ; Sun, 1 Oct 2023 05:17:56 -0700 (PDT) Received: by mail-ed1-x52c.google.com with SMTP id 4fb4d7f45d1cf-533c8f8f91dso17432537a12.0 for ; Sun, 01 Oct 2023 05:17:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1696162675; x=1696767475; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:from:to:cc:subject:date:message-id :reply-to; bh=GAzLS2dOI2yGk1V4Wl9xWr4J2ifkSYT5oCM0Ek9ZlC8=; b=Lta9eVgqJGx64bM+OYsoMD6qdOeD4XBsArp4+SGAHt96s8gek1zmsg3CatajP6K7Yv WeSasDVG3A0LMCKFjBcad2RMYn2US6iYyJMl//flCybX4p5pdD5yb4lUnQB9HD2zTcne kvL0I3VPCaXFgMT5GpzhYGF7CgaSAPCZtQkmlLIGj9QFHuoPJlGowi+Fgnxl0PprqfHg luUIBRwIfIdHunzhcOw7+KHKjYj/QhD5a+JQe20D44e2WZENMHti4O2UV+Q2MpOQHFzv uqfvRdGxaj+C/aGIbMbZaNTrAxcMG0Qwihpkcw4QTERYoDFWgCgRaYLepyjbsGgUTgT0 OyrA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696162675; x=1696767475; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=GAzLS2dOI2yGk1V4Wl9xWr4J2ifkSYT5oCM0Ek9ZlC8=; b=HhDx3WXp+s7tWkeyrZZfqDPImffPfX4YhIOLg8VwMb/te3HaKMnArIsY37HyceTkL5 Df3ofNl0GARCZkynOH6W4kpOLnfkmNNlLQPTnyKduCtJAsxdm7dbTanB3JcJQiR+XbgR HRZMSUfNgGwUZBky4D+HJEdoqGL902klatOnkuNrCC46bN+hrXHSJkf1F7oe9t581M1N jdE+hCSrOtllTLikxdPljJH8ncJpdfPbGxVyAskRoYngXl32GtQ0w0xd1xzx9E/mOjuh wr5umrBz6VPsG9D/sX2e+gA7+h+uphl82fV48YitFHZFFAQw3eNIjpt8BpYrNF1rtASb eZtQ== X-Gm-Message-State: AOJu0Yx7XYgNn//o+0Wv08015HIjtO2ZsSkHYqDoddEd9+A2hkYNaGLN efdTlmfdXp8erRVvzhL0uuI= X-Google-Smtp-Source: AGHT+IGlUbJ6x50iaYdhuEWNUrelSREHnjmxrrJK6ohea0fCwZ2JyB9hGW++3kFanro7izPMNQqTvg== X-Received: by 2002:a17:907:2cd5:b0:9ae:68dc:d571 with SMTP id hg21-20020a1709072cd500b009ae68dcd571mr7867155ejc.46.1696162674925; Sun, 01 Oct 2023 05:17:54 -0700 (PDT) Received: from gmail.com (84-236-113-123.pool.digikabel.hu. [84.236.113.123]) by smtp.gmail.com with ESMTPSA id i8-20020a17090685c800b009ad7fc17b2asm15458667ejy.224.2023.10.01.05.17.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 01 Oct 2023 05:17:52 -0700 (PDT) Sender: Ingo Molnar Date: Sun, 1 Oct 2023 14:17:50 +0200 From: Ingo Molnar To: Borislav Petkov Cc: Alexey Kardashevskiy , x86@kernel.org, linux-kernel@vger.kernel.org, Ingo Molnar , Tom Lendacky Subject: Re: [PATCH kernel v2] x86/compressed/64: reduce #VC nesting for intercepted CPUID for SEV-SNP guest Message-ID: References: <20230926040526.957240-1-aik@amd.com> <20230930071759.GAZRfLpz38AAITSZzW@fat_crate.local> <20231001095322.GAZRlBkle6JC2rfM6u@fat_crate.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231001095322.GAZRlBkle6JC2rfM6u@fat_crate.local> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Borislav Petkov wrote: > On Sun, Oct 01, 2023 at 08:40:30PM +1100, Alexey Kardashevskiy wrote: > > Ingo says different, who wins? :) > > I do: a function gives you type checking - a macro doesn't. That's false, because this specific macro don't force any types, it only passes types through as-is to type-checked functions, so both the macro and the function variant does similar quality of type checking ... But I'm fine with both approaches, I suggested a macro because the existing rdtsc definitions used macros already - but I have no strong feelings which particular color this shed gets painted ... Thanks, Ingo