ppc/pnv: Add a HIOMAP erase command
[qemu.git] / include / hw / misc / tz-mpc.h
1 /*
2 * ARM AHB5 TrustZone Memory Protection Controller emulation
3 *
4 * Copyright (c) 2018 Linaro Limited
5 * Written by Peter Maydell
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 or
9 * (at your option) any later version.
10 */
11
12 /* This is a model of the TrustZone memory protection controller (MPC).
13 * It is documented in the ARM CoreLink SIE-200 System IP for Embedded TRM
14 * (DDI 0571G):
15 * https://developer.arm.com/products/architecture/m-profile/docs/ddi0571/g
16 *
17 * The MPC sits in front of memory and allows secure software to
18 * configure it to either pass through or reject transactions.
19 * Rejected transactions may be configured to either be aborted, or to
20 * behave as RAZ/WI. An interrupt can be signalled for a rejected transaction.
21 *
22 * The MPC has a register interface which the guest uses to configure it.
23 *
24 * QEMU interface:
25 * + sysbus MMIO region 0: MemoryRegion for the MPC's config registers
26 * + sysbus MMIO region 1: MemoryRegion for the upstream end of the MPC
27 * + Property "downstream": MemoryRegion defining the downstream memory
28 * + Named GPIO output "irq": set for a transaction-failed interrupt
29 */
30
31 #ifndef TZ_MPC_H
32 #define TZ_MPC_H
33
34 #include "hw/sysbus.h"
35
36 #define TYPE_TZ_MPC "tz-mpc"
37 #define TZ_MPC(obj) OBJECT_CHECK(TZMPC, (obj), TYPE_TZ_MPC)
38
39 #define TZ_NUM_PORTS 16
40
41 #define TYPE_TZ_MPC_IOMMU_MEMORY_REGION "tz-mpc-iommu-memory-region"
42
43 typedef struct TZMPC TZMPC;
44
45 struct TZMPC {
46 /*< private >*/
47 SysBusDevice parent_obj;
48
49 /*< public >*/
50
51 /* State */
52 uint32_t ctrl;
53 uint32_t blk_idx;
54 uint32_t int_stat;
55 uint32_t int_en;
56 uint32_t int_info1;
57 uint32_t int_info2;
58
59 uint32_t *blk_lut;
60
61 qemu_irq irq;
62
63 /* Properties */
64 MemoryRegion *downstream;
65
66 hwaddr blocksize;
67 uint32_t blk_max;
68
69 /* MemoryRegions exposed to user */
70 MemoryRegion regmr;
71 IOMMUMemoryRegion upstream;
72
73 /* MemoryRegion used internally */
74 MemoryRegion blocked_io;
75
76 AddressSpace downstream_as;
77 AddressSpace blocked_io_as;
78 };
79
80 #endif