Specifications
Table 1 describes the dynamic metadata management mechanism of the TMM:
Item |
Specification |
||||
|---|---|---|---|---|---|
Trusted Descriptor (TD) |
cVM description. A maximum of 1024 cVMs can be created. |
||||
Trusted Execution Context (TEC) |
vCPU context. A maximum of 1024 TECs are supported. |
||||
Trusted Translation Table (TTT) |
S-EL2 memory page table. A maximum of 8192 TTTs are supported. |
||||
- Generally a cVM consumes 66 TTTs. The current metadata specification allows a maximum of 124 cVMs to start concurrently.
- Mapping cVMs to block devices consumes extra page tables. The remaining available page tables in the TMM can be monitored based on Obtaining Security Memory Information.
Parent topic: Feature Description