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[23.128.96.18]) by mx.google.com with ESMTP id t17si2589658ejs.79.2021.02.08.02.10.56; Mon, 08 Feb 2021 02:11:20 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=merlin.20170209 header.b=1PpLDVWr; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231712AbhBHKJq (ORCPT + 99 others); Mon, 8 Feb 2021 05:09:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41448 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232141AbhBHKBY (ORCPT ); Mon, 8 Feb 2021 05:01:24 -0500 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 96F7EC061756 for ; Mon, 8 Feb 2021 02:00:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=D5tWWKHXqUG5EZDch0gesu7dkFX2RCXASBX8rVKzm1I=; b=1PpLDVWrRhmvcYo+GoCCpTy6YJ TaR35nwyQXshfjB8vqBMMbArydQmgYItuZDGJQyRR2GxVgn3cGh7b1Fd8g+hbqTFf/KJtuO2E1umC cnJyxZTjtLzuOGyfL9pFSyD1yf7MK9hXdc+sZa7slLX1jCXRekp0/bUb5kbpOFTerFpWqYMGgYC01 mW8sEAiG96XkK6gNMWUcl2tIJQAMLYo0nOGDMFAPJJppgHzAqmGFE6qVpBPuMHmVifdrl2rV0gY60 cjX78vQeoAlcG0xeheg6Fq6jo05KjZS03hJMIROMTgczc4H6QpYR3VbaGhDwzdu51Xh/eY2SZ21BF VRjPzqIQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1l93LH-0001cF-64; Mon, 08 Feb 2021 10:00:27 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id C25823012DF; Mon, 8 Feb 2021 11:00:20 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id E3D132BF2D62E; Mon, 8 Feb 2021 11:00:20 +0100 (CET) Date: Mon, 8 Feb 2021 11:00:20 +0100 From: Peter Zijlstra To: Kuppuswamy Sathyanarayanan Cc: Andy Lutomirski , Dave Hansen , Andi Kleen , Kirill Shutemov , Kuppuswamy Sathyanarayanan , Dan Williams , Raj Ashok , Sean Christopherson , linux-kernel@vger.kernel.org Subject: Re: [RFC v1 04/26] x86/tdx: Get TD execution environment information via TDINFO Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 05, 2021 at 03:38:21PM -0800, Kuppuswamy Sathyanarayanan wrote: > +/* > + * TDCALL instruction is newly added in TDX architecture, > + * used by TD for requesting the host VMM to provide > + * (untrusted) services. > + */ > +#define TDCALL ".byte 0x66,0x0f,0x01,0xcc" This needs a binutils version number.