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The Security Identifier device found in various Allwinner System on Chip designs gives applications a per-board unique identifier. This commit adds support for the Allwinner Security Identifier using a 128-bit UUID value as input. Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20200311221854.30370-8-nieklinnenbank@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/*
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* Allwinner Security ID emulation
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*
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* Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HW_MISC_ALLWINNER_SID_H
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#define HW_MISC_ALLWINNER_SID_H
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#include "qom/object.h"
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#include "hw/sysbus.h"
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#include "qemu/uuid.h"
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/**
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* Object model
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* @{
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*/
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#define TYPE_AW_SID "allwinner-sid"
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#define AW_SID(obj) \
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OBJECT_CHECK(AwSidState, (obj), TYPE_AW_SID)
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/** @} */
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/**
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* Allwinner Security ID object instance state
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*/
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typedef struct AwSidState {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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/** Maps I/O registers in physical memory */
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MemoryRegion iomem;
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/** Control register defines how and what to read */
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uint32_t control;
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/** RdKey register contains the data retrieved by the device */
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uint32_t rdkey;
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/** Stores the emulated device identifier */
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QemuUUID identifier;
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} AwSidState;
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#endif /* HW_MISC_ALLWINNER_SID_H */
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