cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

idau.h (2159B)

      1/*
      2 * QEMU ARM CPU -- interface for the Arm v8M IDAU
      3 *
      4 * Copyright (c) 2018 Linaro Ltd
      5 *
      6 * This program is free software; you can redistribute it and/or
      7 * modify it under the terms of the GNU General Public License
      8 * as published by the Free Software Foundation; either version 2
      9 * of the License, or (at your option) any later version.
     10 *
     11 * This program is distributed in the hope that it will be useful,
     12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 * GNU General Public License for more details.
     15 *
     16 * You should have received a copy of the GNU General Public License
     17 * along with this program; if not, see
     18 * <http://www.gnu.org/licenses/gpl-2.0.html>
     19 *
     20 * In the v8M architecture, the IDAU is a small piece of hardware
     21 * typically implemented in the SoC which provides board or SoC
     22 * specific security attribution information for each address that
     23 * the CPU performs MPU/SAU checks on. For QEMU, we model this with a
     24 * QOM interface which is implemented by the board or SoC object and
     25 * connected to the CPU using a link property.
     26 */
     27
     28#ifndef TARGET_ARM_IDAU_H
     29#define TARGET_ARM_IDAU_H
     30
     31#include "qom/object.h"
     32
     33#define TYPE_IDAU_INTERFACE "idau-interface"
     34#define IDAU_INTERFACE(obj) \
     35    INTERFACE_CHECK(IDAUInterface, (obj), TYPE_IDAU_INTERFACE)
     36typedef struct IDAUInterfaceClass IDAUInterfaceClass;
     37DECLARE_CLASS_CHECKERS(IDAUInterfaceClass, IDAU_INTERFACE,
     38                       TYPE_IDAU_INTERFACE)
     39
     40typedef struct IDAUInterface IDAUInterface;
     41
     42#define IREGION_NOTVALID -1
     43
     44struct IDAUInterfaceClass {
     45    InterfaceClass parent;
     46
     47    /* Check the specified address and return the IDAU security information
     48     * for it by filling in iregion, exempt, ns and nsc:
     49     *  iregion: IDAU region number, or IREGION_NOTVALID if not valid
     50     *  exempt: true if address is exempt from security attribution
     51     *  ns: true if the address is NonSecure
     52     *  nsc: true if the address is NonSecure-callable
     53     */
     54    void (*check)(IDAUInterface *ii, uint32_t address, int *iregion,
     55                  bool *exempt, bool *ns, bool *nsc);
     56};
     57
     58#endif