Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751834AbdIUH41 (ORCPT ); Thu, 21 Sep 2017 03:56:27 -0400 Received: from mail-pg0-f41.google.com ([74.125.83.41]:52192 "EHLO mail-pg0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751521AbdIUH40 (ORCPT ); Thu, 21 Sep 2017 03:56:26 -0400 X-Google-Smtp-Source: AOwi7QCpgOOxwxWUV2xq32m1sI2dRM3hyWO91V6CGWP5DsauZWw7hMHpZHt8Xb3tck928yZufLSc//31lZBJynOHnHs= MIME-Version: 1.0 In-Reply-To: <59C36E18.1050106@huawei.com> References: <1505977937-25034-1-git-send-email-mchitale@apm.com> <59C36E18.1050106@huawei.com> From: Mayuresh Chitale Date: Thu, 21 Sep 2017 13:26:25 +0530 Message-ID: Subject: Re: [PATCH] tee: ACPI support for optee driver To: Hanjun Guo Cc: linux-kernel@vger.kernel.org, "linux-arm-kernel@lists.infradead.org" , linux-acpi@vger.kernel.org, Jens Wiklander , "patches@apm.com" Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 910 Lines: 23 On Thu, Sep 21, 2017 at 1:15 PM, Hanjun Guo wrote: > On 2017/9/21 15:12, Mayuresh Chitale wrote: >> This patch modifies the optee driver to add support for parsing >> the conduit method from an ACPI node. > > Sorry I didn't involve this earlier, but I think this is a wrong > approach, in ACPI 5.1+ spec, there is a bit in FADT table which > indicates PSCI using SMC or HVC, please see ACPI 6.2 [1], > Table 5-37 Fixed ACPI Description Table ARM Boot Architecture Flags. > > Can we just use that to get the conduit method for optee driver too? Thanks for the comment. I will check it out. > > [1]: http://www.uefi.org/sites/default/files/resources/ACPI_6_2.pdf > > Thanks > Hanjun > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html