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=-11.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 95407C433DB for ; Sat, 30 Jan 2021 13:12:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5CE0660234 for ; Sat, 30 Jan 2021 13:12:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230036AbhA3NMI (ORCPT ); Sat, 30 Jan 2021 08:12:08 -0500 Received: from mail.kernel.org ([198.145.29.99]:35712 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229620AbhA3NMF (ORCPT ); Sat, 30 Jan 2021 08:12:05 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id CB43D60235; Sat, 30 Jan 2021 13:11:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1612012285; bh=m3ZnxRe/kgAbv1hWdDIPtBmiARwysYIMnvEru0zEGhk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=B4i7V5ejZoSndy0b3oQ8q7xpMopzMKh2+7qLS7cjK2mm59cs4l31mtgH3zHGwzQYW pyaqRSnn8sssncHPlZ7WexqNE1qvL+OWSO8fiVF3B6V+8oJayMAV04hl9TwnG1WXIU jb8catoktNE4k930+iWJspO1+E88SAtqJhQV5qEVK2IO/eul9cKE8yVY69NVhw+UX2 poRHUy310HtT5iWmzAzGoTftTxrSblN2NqpTK3u36xcPeo12uMMJJLjJHSPPGD1x6o HHnAE0zQqQvQx6QqLncbbeqvyQaR5U3+0sItH8gIUnZV7L4l2foRY20kqU8qBmYqpc 3xJ4yfCnJ7XTg== Date: Sat, 30 Jan 2021 15:11:20 +0200 From: Jarkko Sakkinen To: Kai Huang Cc: linux-sgx@vger.kernel.org, kvm@vger.kernel.org, x86@kernel.org, seanjc@google.com, luto@kernel.org, dave.hansen@intel.com, haitao.huang@intel.com, pbonzini@redhat.com, bp@alien8.de, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com Subject: Re: [RFC PATCH v3 01/27] x86/cpufeatures: Add SGX1 and SGX2 sub-features 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: kvm@vger.kernel.org On Tue, Jan 26, 2021 at 10:30:16PM +1300, Kai Huang wrote: > From: Sean Christopherson > > Add SGX1 and SGX2 feature flags, via CPUID.0x12.0x0.EAX, as scattered > features, since adding a new leaf for only two bits would be wasteful. > As part of virtualizing SGX, KVM will expose the SGX CPUID leafs to its > guest, and to do so correctly needs to query hardware and kernel support > for SGX1 and SGX2. > > Signed-off-by: Sean Christopherson > Signed-off-by: Kai Huang Acked-by: Jarkko Sakkinen /Jarkko