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[23.128.96.18]) by mx.google.com with ESMTP id ga42si3069212ejc.8.2021.02.24.20.42.55; Wed, 24 Feb 2021 20:43:18 -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; 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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233952AbhBXXtS (ORCPT + 99 others); Wed, 24 Feb 2021 18:49:18 -0500 Received: from mga07.intel.com ([134.134.136.100]:40059 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233121AbhBXXtR (ORCPT ); Wed, 24 Feb 2021 18:49:17 -0500 IronPort-SDR: DNHRS+vlQSlpMcOrZIPZgs7IironwdHKFdk3z6RCIECEqAg41xoq5jkEq4BIVYz/CPGUWM4ib5 0pCfoq1zg7Gw== X-IronPort-AV: E=McAfee;i="6000,8403,9905"; a="249409039" X-IronPort-AV: E=Sophos;i="5.81,203,1610438400"; d="scan'208";a="249409039" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Feb 2021 15:48:51 -0800 IronPort-SDR: 3otDN6yMYW6PLfOn890S2iTs/YjG9Nn/od3Rj4udhM5LGBfyRgC0QXdjVpgI1076MjE5PdFWb6 mqYw/tEHlSOQ== X-IronPort-AV: E=Sophos;i="5.81,203,1610438400"; d="scan'208";a="431865301" Received: from rbirch-mobl3.amr.corp.intel.com (HELO [10.209.184.29]) ([10.209.184.29]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Feb 2021 15:48:50 -0800 Subject: Re: [PATCH 0/3] Introduce version array structure: sgx_va To: Jarkko Sakkinen , linux-sgx@vger.kernel.org Cc: haitao.huang@intel.com, dan.j.williams@intel.com, dave.hansen@linux.intel.com, bp@alien8.de, tglx@linutronix.de, linux-kernel@vger.kernel.org, x86@kernel.org References: <20210224222049.240754-1-jarkko@kernel.org> From: Dave Hansen Autocrypt: addr=dave.hansen@intel.com; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210224222049.240754-1-jarkko@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/24/21 2:20 PM, Jarkko Sakkinen wrote: > The use of sgx_va can be later on extended to the following use cases: > > - A global VA for reclaimed SECS pages. > - A global VA for reclaimed VA pages. ... > arch/x86/kernel/cpu/sgx/driver.c | 3 +- > arch/x86/kernel/cpu/sgx/encl.c | 180 ++++++++++++++++++++++--------- > arch/x86/kernel/cpu/sgx/encl.h | 36 ++++--- > arch/x86/kernel/cpu/sgx/ioctl.c | 77 +++++-------- > arch/x86/kernel/cpu/sgx/main.c | 19 +--- > 5 files changed, 184 insertions(+), 131 deletions(-) It looks interesting. Were you planning on keeping this on the back burner until we need it more acutely? Or, were you thinking it should be merged immediately?