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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a88b4c40a8sm156484775ad.51.2026.02.01.17.51.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 01 Feb 2026 17:51:58 -0800 (PST) Message-ID: Date: Mon, 2 Feb 2026 09:51:54 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64: dts: qcom: hamoa: Add remoteproc in EL2 device trees To: Dmitry Baryshkov Cc: andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, tingwei.zhang@oss.qualcomm.com, jie.gan@oss.qualcomm.com References: <20260130073113.3091884-1-xin.liu@oss.qualcomm.com> <5qplhwnkiwhsfr5rxzjqk4v6rtvpqkvsg7qxvrpkqd3b7vjvob@jffvv4fvvd3d> From: Xin Liu In-Reply-To: <5qplhwnkiwhsfr5rxzjqk4v6rtvpqkvsg7qxvrpkqd3b7vjvob@jffvv4fvvd3d> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: -Gmz5eSz27jBNVYvg-nrHAZunxKdPbEC X-Proofpoint-GUID: -Gmz5eSz27jBNVYvg-nrHAZunxKdPbEC X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjAyMDAxNCBTYWx0ZWRfX/RWGRem4m8o2 Yv134+PmBwtWMbA2SM8UwgOo/6w7b9Xwg6U3vLdywIvLBWoP4DMlvE80Kea21ynSSnYho6dCucc RRsSJBvs42SeyM0e/0pD9JFSMG7Jx4Kv0j9nPWcA6raioNvzda6nZikI2j/fMpeIrf5U2ADwSp2 WqXHWPpBDD41r7EscLUw0c03pxN60E9rr1I7avvIKcCWXKc4i5z59vEhNX8smh7PKIx6V/2OoZD hdrdPExv9jH9sPRtAP6gYidiOzBjpMrXg2IJpP8tnMB+N+k62wQashKOCpFPdElWwLai30T0ALn kLlp5PvPqBACejyrpVEeLtsqaNk7lZ1pomNmmjxWA/YlJAfoWRT/JXuIYiGcvPhCA7pAuntx2Zf Wb7Nr5dvVUipzxc3CI663LfKb+BNhVxhpfxFi/nqWS276zfvvz8FNhJ/5viNDkTz8S/gBfMOMDB qmmBM7W3P+xTv3l9niQ== X-Authority-Analysis: v=2.4 cv=bIEb4f+Z c=1 sm=1 tr=0 ts=6980033f cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=kEW6tzR9zyLWOYnENaYA:9 a=QEXdDO2ut3YA:10 a=eSe6kog-UzkA:10 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-01_08,2026-01-30_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 phishscore=0 malwarescore=0 lowpriorityscore=0 adultscore=0 impostorscore=0 clxscore=1015 suspectscore=0 bulkscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602020014 On 1/31/2026 3:56 PM, Dmitry Baryshkov wrote: > On Thu, Jan 29, 2026 at 11:31:13PM -0800, Xin Liu wrote: >> All the existing variants Talos boards are using Gunyah hypervisor > Why are you mentioning Talos here? Thank you for your reminder. My fault, will update next version. XIN > >> which means that, so far, Linux-based OS could only boot in EL1 on >> those devices. However, it is possible for us to boot Linux at EL2 >> on these devices [1]. >> >> When running under Gunyah, the remote processor firmware IOMMU streams >> are controlled by Gunyah. However, without Gunyah, the IOMMU is managed >> by the consumer of this DeviceTree. Therefore, describe the firmware >> streams for each remote processor. >> >> Add remoteproc to the EL2 device trees to generate the corresponding >> -el2.dtb files. >> >> [1] >> https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-4/boot-developer-touchpoints.html#uefi >> >> Signed-off-by: Xin Liu >> --- >> arch/arm64/boot/dts/qcom/x1-el2.dtso | 8 ++++++++ >> 1 file changed, 8 insertions(+) >>