J721E Host Descriptions¶
Introduction¶
This chapter provides information of Host IDs that are permitted in the J721E SoC. These host IDs represent processing entities (or PEs) which is mandatory identification of a Host in a processor.
Typically a host is a ‘compute entity’ which may be an actual processor or even a virtual machine. We just use host or processing entity to indicate the same thing.
Enumeration of Host IDs¶
| Host ID | Host Name | Security Status | Description |
|---|---|---|---|
| 0 | DMSC | Secure | Security Controller |
| 254 | DM | Non Secure | Device Management |
| 3 | MCU_0_R5_0 | Non Secure | Cortex R5 context 0 on MCU island |
| 4 | MCU_0_R5_1 | Secure | Cortex R5 context 1 on MCU island(Boot) |
| 5 | MCU_0_R5_2 | Non Secure | Cortex R5 context 2 on MCU island |
| 6 | MCU_0_R5_3 | Secure | Cortex R5 context 3 on MCU island |
| 10 | A72_0 | Secure | Cortex A72 context 0 on Main island |
| 11 | A72_1 | Secure | Cortex A72 context 1 on Main island |
| 12 | A72_2 | Non Secure | Cortex A72 context 2 on Main island |
| 13 | A72_3 | Non Secure | Cortex A72 context 3 on Main island |
| 14 | A72_4 | Non Secure | Cortex A72 context 4 on Main island |
| 20 | C7X_0 | Secure | C7x Context 0 on Main island |
| 21 | C7X_1 | Non Secure | C7x context 1 on Main island |
| 25 | C6X_0_0 | Secure | C6x_0 Context 0 on Main island |
| 26 | C6X_0_1 | Non Secure | C6x_0 context 1 on Main island |
| 27 | C6X_1_0 | Secure | C6x_1 Context 0 on Main island |
| 28 | C6X_1_1 | Non Secure | C6x_1 context 1 on Main island |
| 30 | GPU_0 | Non Secure | RGX context 0 on Main island |
| 35 | MAIN_0_R5_0 | Non Secure | Cortex R5_0 context 0 on Main island |
| 36 | MAIN_0_R5_1 | Secure | Cortex R5_0 context 1 on Main island |
| 37 | MAIN_0_R5_2 | Non Secure | Cortex R5_0 context 2 on Main island |
| 38 | MAIN_0_R5_3 | Secure | Cortex R5_0 context 3 on MCU island |
| 40 | MAIN_1_R5_0 | Non Secure | Cortex R5_1 context 0 on Main island |
| 41 | MAIN_1_R5_1 | Secure | Cortex R5_1 context 1 on Main island |
| 42 | MAIN_1_R5_2 | Non Secure | Cortex R5_1 context 2 on Main island |
| 43 | MAIN_1_R5_3 | Secure | Cortex R5_1 context 3 on MCU island |
| 50 | ICSSG_0 | Non Secure | ICSSG context 0 on Main island |
| 250 | DM2DMSC | Secure | DM to DMSC communication |
| 251 | DMSC2DM | Non Secure | DMSC to DM communication |
Note
- Description provides an intended purpose of the host ID, though on some systems, this might be used differently, backing memory and link allocations are made with the specified purpose in mind
- Security Status provides an intended purpose for the Host context