linux-kernel - [PATCH 2/2] arm64: dts: qcom: agatti: Address Gunyah memory alignment needs

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Message-ID: <20251229070712.456138-2-sumit.garg@oss.qualcomm.com>
Date: Mon, 29 Dec 2025 12:37:12 +0530
From: Sumit Garg <sumit.garg@....qualcomm.com>
To: linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org
Cc: andersson@...nel.org,
	konradybcio@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	akhilpo@....qualcomm.com,
	vikash.garodia@....qualcomm.com,
	dikshita.agarwal@....qualcomm.com,
	robin.clark@....qualcomm.com,
	lumag@...nel.org,
	linux-kernel@...r.kernel.org,
	Sumit Garg <sumit.garg@....qualcomm.com>
Subject: [PATCH 2/2] arm64: dts: qcom: agatti: Address Gunyah memory alignment needs

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 <sumit.garg@....qualcomm.com>
---
 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@...00000 {
-			reg = <0x0 0x45700000 0x0 0x600000>;
+		hyp_mem: hyp@...00000 {
+			reg = <0x0 0x45600000 0x0 0x700000>;
 			no-map;
 		};
 
-- 
2.51.0