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

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Message-ID: <20251229071258.456254-2-sumit.garg@kernel.org>
Date: Mon, 29 Dec 2025 12:42:58 +0530
From: Sumit Garg <sumit.garg@...nel.org>
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

From: Sumit Garg <sumit.garg@....qualcomm.com>

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