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I want to monitor a specified address on the ARM A76 machine and enter an exception when the address is load. However, I did the configuration and did not enter the exception.
My process as follows:
1. Set MDSCR_EL1 KDE and MDE 1 to enable debug exception in El1;
2. Configures the OSLAR_EL1 register, unlocked. OS.
4. Configure DBGWVR0_EL1 and DBGWCR0_EL1, and make sure instruction store (LSC == 0b10) to the address in DBGWVR0_EL1 will happen.My machine as follows:1. ARM A76+Threadx Rtos 2. The exception to running the program is el1。
I use mrs Instruction to read the relevant register, but can not find the reason, there is a big guy can help
Register print as follows
mdscr_el1 40960DAIF 0OSLSR_EL1 8CurrentEL 4MDSCR_EL1 40960DBGWVR0_EL1 3491870208DBGWCR0_EL1 249