Interfaces don't have instance, let's make the interface type really abstract to avoid confusion. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20181204142023.15982-3-marcandre.lureau@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/*
|
|
* QEMU ARM CPU -- interface for the Arm v8M IDAU
|
|
*
|
|
* Copyright (c) 2018 Linaro Ltd
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see
|
|
* <http://www.gnu.org/licenses/gpl-2.0.html>
|
|
*
|
|
* In the v8M architecture, the IDAU is a small piece of hardware
|
|
* typically implemented in the SoC which provides board or SoC
|
|
* specific security attribution information for each address that
|
|
* the CPU performs MPU/SAU checks on. For QEMU, we model this with a
|
|
* QOM interface which is implemented by the board or SoC object and
|
|
* connected to the CPU using a link property.
|
|
*/
|
|
|
|
#ifndef TARGET_ARM_IDAU_H
|
|
#define TARGET_ARM_IDAU_H
|
|
|
|
#include "qom/object.h"
|
|
|
|
#define TYPE_IDAU_INTERFACE "idau-interface"
|
|
#define IDAU_INTERFACE(obj) \
|
|
INTERFACE_CHECK(IDAUInterface, (obj), TYPE_IDAU_INTERFACE)
|
|
#define IDAU_INTERFACE_CLASS(class) \
|
|
OBJECT_CLASS_CHECK(IDAUInterfaceClass, (class), TYPE_IDAU_INTERFACE)
|
|
#define IDAU_INTERFACE_GET_CLASS(obj) \
|
|
OBJECT_GET_CLASS(IDAUInterfaceClass, (obj), TYPE_IDAU_INTERFACE)
|
|
|
|
typedef struct IDAUInterface IDAUInterface;
|
|
|
|
#define IREGION_NOTVALID -1
|
|
|
|
typedef struct IDAUInterfaceClass {
|
|
InterfaceClass parent;
|
|
|
|
/* Check the specified address and return the IDAU security information
|
|
* for it by filling in iregion, exempt, ns and nsc:
|
|
* iregion: IDAU region number, or IREGION_NOTVALID if not valid
|
|
* exempt: true if address is exempt from security attribution
|
|
* ns: true if the address is NonSecure
|
|
* nsc: true if the address is NonSecure-callable
|
|
*/
|
|
void (*check)(IDAUInterface *ii, uint32_t address, int *iregion,
|
|
bool *exempt, bool *ns, bool *nsc);
|
|
} IDAUInterfaceClass;
|
|
|
|
#endif
|