hi, expert

i study ArmV8 architecture.

  On taking an exception to a higher Exception level, the Execution state either:

    • Remains unchanged.

    • Changes from AArch32 state to AArch64 state.

  i konw that…

Dear sirs,

I'm reading arm v8a specification. I found that when arm is in aarch32 state, only a few exceptions can switch to aarch64 depending on the configuration in the registers. the exceptions are as follows.

abort, physical async abort, physical…

Hi, arm experts,

We want to use ARCH32 mode in secure EL1, I see some descriptions in ARMv8 Arch Reference Manual about Secure EL1 ARCH32 mode as follows:

One is the VBAR(secure), it is mapped to  VBAR_EL3, the other is SCTLR (secure), it is mapped to …