This project demonstrates the use of the System Memory Management Unit (SMMU) in a baremetal environment.
| Peripheral | Start address | End address | Size | Security |
|---|---|---|---|---|
| Trusted ROM | 0x00_0000_0000 | 0x00_03FF_FFFF | 64MB | S |
| Trusted SRAM | 0x00_0400_0000 | 0x00_0407_FFFF | 512KB | S |
| UART0, PL011 | 0x00_1C09_0000 | 0x00_1C09_FFFF | 64KB | S/NS |
| SMMUv3 | 0x00_2B40_0000 | 0x00_2B4F_FFFF | 1MB | S/NS |
| GICv3 GICD | 0x00_2F00_0000 | 0x00_2F00_FFFF | 64KB | S/NS |
| GICv3 GITS | 0x00_2F02_0000 | 0x00_2F03_FFFF | 128KB | S/NS |
| GICv3 GICR | 0x00_2F10_0000 | 0x00_2F1F_FFFF | 1MB | S/NS |
| IRQ ID | SPI offset | Device |
|---|---|---|
| 37 | 5 | UART0, PL011. |
| 103 | 71 | SMMUv3 non-secure combined interrupt. |
| 104 | 72 | SMMUv3 secure combined interrupt. |
| 105 | 73 | SMMUv3 secure event queue. |
| 106 | 74 | SMMUv3 non-secure event queue. |
| 107 | 75 | SMMUv3 PRI queue. |
| 108 | 76 | SMMUv3 secure command queue sync. |
| 109 | 77 | SMMUv3 non-secure command queue sync. |
| 110 | 78 | SMMUv3 secure GERROR. |
| 111 | 79 | SMMUv3 non-secure GERROR. |
<root>
├── asm
│ ├── gicv3.s
│ ├── startup.s
│ └── vector.s
├── include
│ ├── pl011_uart.h
│ ├── smmuv3.h
│ └── testcase.h
├── LICENSE
├── Makefile
├── README.md
├── scatter.txt
├── src
│ ├── interrupts.c
│ ├── kernel.c
│ └── pl011_uart.c
└── test_case
├── 01_dump_ird0.c
├── 02_dump_ird1.c
├── 03_dump_ird2.c
├── 04_dump_idr3.c
├── 05_dump_idr4.c
├── 06_dump_idr5.c
├── 07_dump_idr6.c
├── 08_dump_iidr.c
├── 09_dump_aidr.c
└── 10_check_offset.c
-------------------------------------------------------------------------------
Language files blank comment code
-------------------------------------------------------------------------------
C 13 83 63 301
C/C++ Header 3 19 12 215
Assembly 3 42 45 150
make 1 14 1 47
-------------------------------------------------------------------------------
SUM: 20 158 121 713
-------------------------------------------------------------------------------
- Run "make DEBUG=TRUE"
Optionally, adding "DEBUG=TRUE" results in additional logging messages being printed.
● make run
terminal_0: Listening for serial connection on port 5000
terminal_1: Listening for serial connection on port 5001
terminal_2: Listening for serial connection on port 5002
terminal_3: Listening for serial connection on port 5003
Current Exception Level: [3]
SMMU_IDR0: 0x80fe6bf
ST_LEVEL: 1
TERM_MODEL: 0
STALL_MODEL: 0
ATSRECERR: 0
TTENDIAN: 0
VATOS: 0
CD2L: 1
VMID16: 1
VMW: 1
PRI: 1
ATOS: 1
SEV: 1
MSI: 1
ASID16: 0
NS1ATS: 0
ATS: 1
HYP: 1
HTTU: 2
BTM: 1
COHACC: 1
TTF: 3
S1P: 1
S2P: 1
SMMU_IDR1: 0xe739d10
ECMDQ: 0
TABLES_PRESET: 0
QUEUES_PRESET: 0
REL: 0
ATTR_TYPES_OVR: 1
ATTR_PERMS_OVR: 1
CMDQS: 19
EVENTQS: 19
PRIQS: 19
SSIDSIZE: 20
SIDSIZE: 16
SMMU_IDR2: 0x0
BA_VATOS: 0
SMMU_IDR3: 0x14
PTWNNC: 0
E0PD: 0
BBML: 0
RIL: 0
STT: 0
FWB: 0
MPAM: 0
PSS: 0
XNX: 1
PBHA: 0
HAD: 1
SMMU_IDR4: 0x0 [IMPLEMENTATION_DEFINED]
SMMU_IDR5: 0x1005d
STALL_MAX: 1
VAX: 0
GRAN64K: 1
GRAN16K: 0
GRAN4K: 1
OAS: 5
SMMU_IDR6: 0x0
CMDQ_CONTROL_PAGE_LOG2NUMP: 0
CMDQ_CONTROL_PAGE_LOG2NUMQ: 0
SMMU_IIDR: 0x0
ProductID: 0
Variant: 0
Revision: 0
Implementer: 0
SMMU_AIDR: 0x1
ArchMajorRev: 0
ArchMinorRev: 1
SMMU_IDR0 offset:0x0
SMMU_IDR1 offset:0x4
SMMU_IDR2 offset:0x8
SMMU_IDR3 offset:0xc
SMMU_IDR4 offset:0x10
SMMU_IDR5 offset:0x14
SMMU_IIDR offset:0x18
SMMU_AIDR offset:0x1c
SMMU_IDR6 offset:0x190
=== ALL TEST CASE PASS ===