From patchwork Wed Jan 11 11:43:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 641333 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 7B436C54EBC for ; Wed, 11 Jan 2023 11:45:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233509AbjAKLpx (ORCPT ); Wed, 11 Jan 2023 06:45:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232691AbjAKLp1 (ORCPT ); Wed, 11 Jan 2023 06:45:27 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AF32C559A; Wed, 11 Jan 2023 03:44:13 -0800 (PST) Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 30BA3Emn011352; Wed, 11 Jan 2023 11:43:58 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=qcppdkim1; bh=Pf8uSiZqQXfQ69hfqvBwH35xGsTTEHCOviTzh/nfQ8A=; b=hu2hdmR/HdqiipapA3PsGXHwavSBg/D63Hx5RGt8guGd4DgOd0R7j9/i2geZDg7ebytQ 48TV5Mz7YfzsXdQFPIkLQDLZL9OiwnaxDlObhVX5rV72qEdthvS0TGMH1lIKUuCdgxKu eIVN5U15+fgEbXEEhh/+BGmCZTITOPJiNapzA0EA/nzY78gSU7YOTuzIeTd97yHKh+lD 7JDaVayrBg8HCT6m7NqtsDDtbqQ6U41+4GC6srSZaQ3mnG/+nsuOko2cFOZW56p+2hwP 9N0GGwh4maPwNJkJquLmBcXnloxXVmOKKJYJOrx0Xm5IQafM1jNBLXe4EUrxHmdfOsI8 XQ== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3n1k9j16sr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 11 Jan 2023 11:43:58 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 30BBhvig002389 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 11 Jan 2023 11:43:57 GMT Received: from blr-ubuntu-87.ap.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36; Wed, 11 Jan 2023 03:43:53 -0800 From: Sibi Sankar To: , , CC: , , , , , , , , , , , , Sibi Sankar Subject: [PATCH V3 00/10] Fix XPU violation during modem metadata authentication Date: Wed, 11 Jan 2023 17:13:27 +0530 Message-ID: <20230111114337.24782-1-quic_sibis@quicinc.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: _9t-nuSSbI3o5s1ZbBm7hh28PWcrcRsp X-Proofpoint-ORIG-GUID: _9t-nuSSbI3o5s1ZbBm7hh28PWcrcRsp X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2023-01-11_05,2023-01-11_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 spamscore=0 impostorscore=0 mlxscore=0 malwarescore=0 phishscore=0 priorityscore=1501 mlxlogscore=999 lowpriorityscore=0 bulkscore=0 suspectscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301110086 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The memory region allocated using dma_alloc_attr with no kernel mapping attribute set would still be a part of the linear kernel map. Any access to this region by the application processor after assigning it to the remote Q6 will result in a XPU violation. Fix this by replacing the dynamically allocated memory region with a no-map carveout and unmap the modem metadata memory region before passing control to the remote Q6. The addition of the carveout and memunmap is required only on SoCs that mandate memory protection before transferring control to Q6, hence the driver falls back to dynamic memory allocation in the absence of the modem metadata carveout. V3: * remove double space [Krzysztof] * Pickup R-bs * yaml description rewrite [Krzysztof] * fix compatible property [Krzysztof] * add blank lines and additionalProperties: false to mba/mpss objects * add blank lines and additionalProperties: false to mdata objects [Krzysztof] * Drop revert no_kernel_mapping since it's already on the list [Mani] * kfree metadata from the branch for parity V2: * Convert legacy bindings to yaml * Revert no_kernel_mapping [Mani/Robin] * Pad commit message to explain bindings break [Krzysztof] * Split dt/bindings per SoC [Krzysztof] Depends on: [revert no_kernel_mapping]: https://lore.kernel.org/linux-arm-msm/20221223092703.61927-2-hch@lst.de/ Sibi Sankar (10): dt-bindings: remoteproc: qcom,q6v5: Move MSM8996 to schema dt-bindings: remoteproc: qcom,msm8996-mss-pil: Update memory region dt-bindings: remoteproc: qcom,sc7180-mss-pil: Update memory-region dt-bindings: remoteproc: qcom,sc7280-mss-pil: Update memory-region remoteproc: qcom_q6v5_mss: Use a carveout to authenticate modem headers arm64: dts: qcom: msm8996: Add a carveout for modem metadata arm64: dts: qcom: msm8998: Add a carveout for modem metadata arm64: dts: qcom: sdm845: Add a carveout for modem metadata arm64: dts: qcom: sc7180: Add a carveout for modem metadata arm64: dts: qcom: sc7280: Add a carveout for modem metadata .../remoteproc/qcom,msm8996-mss-pil.yaml | 393 ++++++++++++++++++ .../bindings/remoteproc/qcom,q6v5.txt | 137 +----- .../remoteproc/qcom,sc7180-mss-pil.yaml | 3 +- .../remoteproc/qcom,sc7280-mss-pil.yaml | 3 +- .../boot/dts/qcom/msm8996-xiaomi-common.dtsi | 6 + arch/arm64/boot/dts/qcom/msm8996.dtsi | 9 + arch/arm64/boot/dts/qcom/msm8998.dtsi | 9 + arch/arm64/boot/dts/qcom/sc7180-idp.dts | 7 +- arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 7 +- .../dts/qcom/sc7280-herobrine-lte-sku.dtsi | 7 +- arch/arm64/boot/dts/qcom/sdm845.dtsi | 9 + drivers/remoteproc/qcom_q6v5_mss.c | 48 ++- 12 files changed, 495 insertions(+), 143 deletions(-) create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml