TrustZone Profile

Versal ACAP Technical Reference Manual (AM011)

Document ID
AM011
Release Date
2022-04-26
Revision
1.4 English

The security profile for transaction sources and destinations are listed in the following table.

Table 1. TrustZone Profile
Entity Destination Port Source Port Notes
APU
APU MPCore/L2 ~ Both
GIC Both ~ Global interrupt controller (GIC)
APU system counter Secure ~ System counter uses two APB ports (secure and non-secure)
APU system counter Non-secure ~
SMMU and CCI
CCI control registers Both (internal) ~ Cache coherent interconnect (CCI) control registers can be configured to be secure or non-secure
TCU APB Both ~ SMMU_REG
TBU AXI Both Both Programmable
XPPU and XMPU
APB interface Secure ~  
AXI interface Both Both Programmable
PS DMA Unit
DMA channel XPPU configurable SLCR configurable Programmable on a per channel basis
PS-PL Interconnect Channels

LPD_AXI_PL
FPD_AXI_PL

Defined by transaction host (can be forced non-secure by PL logic) ~ Transaction originating in PS

PL_AXI_LPD
PL_AXI_FPD

~

SLCR configurable:
* Non-secure
* Pass NS bit from PL transaction host

Transaction originating in PL
RPU
RPU cores ~ SLCR configurable
RPU TCMs XPPU configurable ~ External AXI slave port
LPD Peripherals and other Destinations
LPD_SLCR_SECURE registers Secure ~  
       
PSM Secure Secure
eFUSE/BPD/SYSMON Secure ~ eFUSEs, battery power domain, system monitor
CoreSight Secure Secure
Debug Packet Controller XPPU configurable ~  
IOP peripherals XPPU configurable ~ I2C, GPIO, SPI, GEM Ethernet, SD_eMMC, CAN, USB, UART, QSPI, OSPI
LPD_SLCR_SECURE GEM Ethernet, SD_eMMC
LPD interfaces on APB XPPU configurable ~ Potential secure destinations: reset-controller
TTC 0 to 3   ~
LPD_SWDT, FPD_SWDT   ~ Watchdog timers
FPD Peripherals and Slaves
Secure SLCR Secure ~
FP slaves APB XPPU configurable ~ Potential secure slaves: reset-controller and PCIe
PMC Units
eFUSE XPPU configurable ~  
PMC SYSMON XPPU configurable ~  
PPU processor XPPU configurable Secure  
JTAG controller ~ Both Select secure/non-secure via DAP controller
QSPI XPPU configurable Secure Transaction initiated by QSPI during boot
SD_eMMC XPPU configurable SLCR programmable  
OSPI XPPU configurable ~  
SelectMap ~ ~  
PMC_DMA XPPU configurable Secure  
DDR Memory, OCM, and XRAM
DDR memory controller XMPU configurable ~ Secure/non-secure per region with 1 MB granularity
OCM XMPU configurable ~ Secure/non-secure per region with 4 KB granularity
Accelerator RAM (XRAM) XMPU configurable ~ An XMPU on each of the four ports
  1. Secure: peripheral or memory device is always secure, independent of the condition.
  2. Non-secure: peripheral or memory device is always non-secure, independent of the condition.
  3. Configurable: peripheral or memory device could be configured as secure or non-secure but only one mode is allowed at any given time. For configurable sources and destinations, the default registers setting is NS (non-secure). There is one exception: the PSM interconnect has an SLCR control and this defaults to S (Secure).
  4. Both: part of the peripheral or memory device is secure while the other part is non-secure.