From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 20F213A1E69; Mon, 5 Jan 2026 05:46:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767591974; cv=none; b=IyTDRsYbeHpLwbw4vHVo5UtD/X0FM8Jv30QwioEhte9b89YYyDHayCWVFgIdceaZ/VVPvNnoosrr0/5w5+HgHYH5dSzpN7rLiB/kqamIN0RCm8PXvVnQUZRyjoj+E6ey961/NUdNfWRtpJZSb1n8uIYrym7JUjg5ZC4tqP9Eqt0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767591974; c=relaxed/simple; bh=a78SIV7Ayp+rZDU5/fJStz+klUrrOsHwW9J5EUR/Gn0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=mE/r8z8f+XqipqoH3xuczBTjTAW9jaiqZeFkxZiLpulErJXkGI9twSb5B7WXWbPOKxHJ8ycXJxJ4h2hFeiLzf3VgZMENQOcmRaKfIiqLwVwbqUGrtZZmiRlRnUHYsKPMxrB3xD//Q9Gb90tRkljj+dGWSgUJ1sQjfYi4gSFAw9U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nDBe6ptc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nDBe6ptc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F17BEC116D0; Mon, 5 Jan 2026 05:46:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767591973; bh=a78SIV7Ayp+rZDU5/fJStz+klUrrOsHwW9J5EUR/Gn0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=nDBe6ptcQn3q8BQfvI6pM7/C+9p4AhfZYwswZ61yvacqRO8IMcxzbzDs3AGyQwK3z kMz8cFUUhnDRoLMPsW6YcOquDmh6ipzdzAJjelG9oKA4oKcD8MsSpxvLeP6L8++lVN qrV+uId2tmJBfdeQIHUERDNKFRtVrMnUEpHtLJ0aZrmm+ECU8l2GdJzZt67+NVdM7L RZSTUOQSAft1pP3rOTDvbAwtGyOFQuU5f5YzEHjoo9d1cABPdLourhLJK8y3bRsGIC kI4zNoFGGsWEApbS7nfJM/NNK3n8AO4wBe8Bm0G5K2/uzBGFQEHipvLgWf8x1ZsG3s aHgd0ika5m4UQ== Date: Mon, 5 Jan 2026 11:16:05 +0530 From: Sumit Garg To: Bjorn Andersson Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.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 Subject: Re: [PATCH 2/2] arm64: dts: qcom: agatti: Address Gunyah memory alignment needs Message-ID: References: <20251229071258.456254-1-sumit.garg@kernel.org> <20251229071258.456254-2-sumit.garg@kernel.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Sat, Jan 03, 2026 at 09:49:04AM -0600, Bjorn Andersson wrote: > On Mon, Dec 29, 2025 at 12:42:58PM +0530, 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. > > > > How come this isn't conveyed to the operating system using the UEFI > memory map? > I agree that with EFI boot, the information is getting conveyed via EFI memory map. But there will be non-EFI boot scenarios as well in case of U-Boot. And moreover I suppose we need to keep the reserved memory ranges in DT updated to reflect the actual memory map. -Sumit