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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8037f09149sm3309398566b.47.2025.12.29.04.42.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 29 Dec 2025 04:42:43 -0800 (PST) Message-ID: Date: Mon, 29 Dec 2025 13:42:40 +0100 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 2/2] arm64: dts: qcom: agatti: Address Gunyah memory alignment needs To: Sumit Garg , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org Cc: andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, akhilpo@oss.qualcomm.com, vikash.garodia@oss.qualcomm.com, dikshita.agarwal@oss.qualcomm.com, robin.clark@oss.qualcomm.com, lumag@kernel.org, linux-kernel@vger.kernel.org, Sumit Garg References: <20251229071258.456254-1-sumit.garg@kernel.org> <20251229071258.456254-2-sumit.garg@kernel.org> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20251229071258.456254-2-sumit.garg@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=Raidyltv c=1 sm=1 tr=0 ts=69527745 cx=c_pps a=JbAStetqSzwMeJznSMzCyw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=YvOuzFCPeRrlURUD1m4A:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-ORIG-GUID: pbG-j8vQbe_S-ta1v-GE5vCoMMQqOEk8 X-Proofpoint-GUID: pbG-j8vQbe_S-ta1v-GE5vCoMMQqOEk8 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjI5MDExOCBTYWx0ZWRfX7VznOUVEOzpa jWq/lpjtFPKirDNH1K7Xjdipfxqf2LLsx5eg+/8iKC5aQe7e7vGpcCuzxbCvC4y9CrqxYHGeR59 INhKbpSBv3Hmqen1vbNPCQXYrF/QOb8dY1c3Wge2M1l7JoLkwRLshTpmlKy5n82ZhHZfIiDYYZz LEjeraf5PnOI0aQB+Og1nimLuIXZqK6YPE4TVJtVKayBBx9RWiVxk5HlEeMnVsUgL96w2spt5tR a3mU9RR9aZCi8gDWvGLXm0Pj7ht+4RhxVkMdSXfqUJWdRzNsTznzcx/I059bNDtDj1KtBXLkZB3 x1Hx8aqnYZo99kDyKFMEbOm/bqE4IzG0xBoV2x3i8jBhvpewQ9a3mfp5G9ahh8lX39Cacnwa9Xk UPOqjKsE5VCwXQEmmmuCspm7+mwIMIxB+OFbCEAxsseADZZUulQT//qahJZOugepBcxkZitpzg6 62lVY+zeGln2Q6nCizg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-29_04,2025-12-29_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 clxscore=1015 phishscore=0 impostorscore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 malwarescore=0 spamscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2512290118 On 12/29/25 8:12 AM, Sumit Garg wrote: > From: Sumit Garg > > Gunyah hypervisor requires it's memory start address to be 2MB aligned. > So the address map for Agatti is updated to incorporate that requirement. > This should be a backwards compatible DT change which should work with > legacy QHEE based firmware stack too. > > Signed-off-by: Sumit Garg > --- > arch/arm64/boot/dts/qcom/agatti.dtsi | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/qcom/agatti.dtsi b/arch/arm64/boot/dts/qcom/agatti.dtsi > index e705eb24160a..153916980ac0 100644 > --- a/arch/arm64/boot/dts/qcom/agatti.dtsi > +++ b/arch/arm64/boot/dts/qcom/agatti.dtsi > @@ -298,8 +298,8 @@ reserved_memory: reserved-memory { > #size-cells = <2>; > ranges; > > - hyp_mem: hyp@45700000 { > - reg = <0x0 0x45700000 0x0 0x600000>; > + hyp_mem: hyp@45600000 { > + reg = <0x0 0x45600000 0x0 0x700000>; Losing another 1M of RAM on an often-2G platform hurts a little.. Reviewed-by: Konrad Dybcio Konrad