ARMv8-A Trap access of EL2 TTBR to EL3

Hi all, I want to trap the non-secure access of several system registers (TTBR0_EL2, VTTBR_EL2, HCR_EL2, etc.) to EL3. However, when I look up the ARMv8-A reference manual, I cannot find some useful...
How interrupts are routed in EL3/EL2/EL1 mode

Sorry for basic question, For ARM64, we have different interrupt vector table for each mode EL3/EL2/EL1 I am wondering, how a specific IRQ is routed to given mode. in GIC, I am not able to find...
ARMv8-A Trap access of EL2 TTBR to EL3

Hi all, I want to trap the non-secure access of several system registers (TTBR0_EL2, VTTBR_EL2, HCR_EL2, etc.) to EL3. However, when I look up the ARMv8-A reference manual, I cannot find some useful...
How interrupts are routed in EL3/EL2/EL1 mode

Sorry for basic question, For ARM64, we have different interrupt vector table for each mode EL3/EL2/EL1 I am wondering, how a specific IRQ is routed to given mode. in GIC, I am not able to find...
Cortex-A53 switching from EL2 to EL1

Hi, I trying to switch from EL2 to EL1 on Cortex-A53. But it doesn't work. Here is my current startup code: #include <asm.h> IMPORT_ASM(_cpu_el3_vec_tbl_set) IMPORT_ASM(_cpu_el2_vec_tbl_set...