linux-kernel - Re: [PATCH v6] usb: misc: qcom_eud: Access EUD_MODE

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Message-ID: <2025072141-anointer-venus-d99f@gregkh>
Date: Mon, 21 Jul 2025 08:53:48 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Komal Bajaj <komal.bajaj@....qualcomm.com>
Cc: Souradeep Chowdhury <quic_schowdhu@...cinc.com>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	Melody Olvera <quic_molvera@...cinc.com>,
	Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH v6] usb: misc: qcom_eud: Access EUD_MODE_MANAGER2 through
 secure calls

On Mon, Jul 21, 2025 at 12:08:41PM +0530, Komal Bajaj wrote:
> EUD_MODE_MANAGER2 register is mapped to a memory region that is marked
> as read-only for HLOS, enforcing access restrictions that prohibit
> direct memory-mapped writes via writel().

What is "HLOS"?