From patchwork Mon Sep 25 16:11:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 13398135 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 0C44ECE7A9D for ; Mon, 25 Sep 2023 16:20:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231226AbjIYQUk (ORCPT ); Mon, 25 Sep 2023 12:20:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46564 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232767AbjIYQUk (ORCPT ); Mon, 25 Sep 2023 12:20:40 -0400 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2B5BEB8 for ; Mon, 25 Sep 2023 09:20:34 -0700 (PDT) Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.201]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4RvSdz0YDTz6K9qw; Tue, 26 Sep 2023 00:15:35 +0800 (CST) Received: from SecurePC-101-06.china.huawei.com (10.122.247.231) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Mon, 25 Sep 2023 17:20:32 +0100 From: Jonathan Cameron To: , , Michael Tsirkin CC: , Fan Ni , =?utf-8?q?Philippe_M?= =?utf-8?q?athieu-Daud=C3=A9?= , Davidlohr Bueso , Gregory Price , Klaus Jensen , Corey Minyard , Klaus Jensen Subject: [PATCH 18/19] hw/cxl: Add dummy security state get Date: Mon, 25 Sep 2023 17:11:23 +0100 Message-ID: <20230925161124.18940-19-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230925161124.18940-1-Jonathan.Cameron@huawei.com> References: <20230925161124.18940-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.122.247.231] X-ClientProxiedBy: lhrpeml100001.china.huawei.com (7.191.160.183) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org Needed to allow the santize comamnds to be tested with proposed Linux Kernel support. Default value + no control of the security state will work for now. Signed-off-by: Jonathan Cameron --- hw/cxl/cxl-mailbox-utils.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index 644dd97727..f40f12f0de 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -73,6 +73,8 @@ enum { SANITIZE = 0x44, #define OVERWRITE 0x0 #define SECURE_ERASE 0x1 + PERSISTENT_MEM = 0x45, + #define GET_SECURITY_STATE 0x0 MEDIA_AND_POISON = 0x43, #define GET_POISON_LIST 0x0 #define INJECT_POISON 0x1 @@ -869,6 +871,19 @@ static CXLRetCode cmd_sanitize_overwrite(const struct cxl_cmd *cmd, } } +static CXLRetCode cmd_get_security_state(const struct cxl_cmd *cmd, + uint8_t *payload_in, + size_t len_in, + uint8_t *payload_out, + size_t *len_out, + CXLCCI *cci) +{ + uint32_t *state = (uint32_t *)payload_out; + + *state = 0; + *len_out = 4; + return CXL_MBOX_SUCCESS; +} /* * This is very inefficient, but good enough for now! * Also the payload will always fit, so no need to handle the MORE flag and @@ -1115,6 +1130,8 @@ static const struct cxl_cmd cxl_cmd_set[256][256] = { ~0, IMMEDIATE_CONFIG_CHANGE | IMMEDIATE_DATA_CHANGE }, [SANITIZE][OVERWRITE] = { "SANITIZE_OVERWRITE", cmd_sanitize_overwrite, 0, IMMEDIATE_DATA_CHANGE | SECURITY_STATE_CHANGE | BACKGROUND_OPERATION }, + [PERSISTENT_MEM][GET_SECURITY_STATE] = { "GET_SECURITY_STATE", + cmd_get_security_state, 0, 0 }, [MEDIA_AND_POISON][GET_POISON_LIST] = { "MEDIA_AND_POISON_GET_POISON_LIST", cmd_media_get_poison_list, 16, 0 }, [MEDIA_AND_POISON][INJECT_POISON] = { "MEDIA_AND_POISON_INJECT_POISON",