On 09/22/2017 11:00 AM, Peter Maydell wrote:
> Secure function return happens when a non-secure function has been
> called using BLXNS and so has a particular magic LR value (either
> 0xfefe or 0xfeff). The function return via BX behaves
> specially when the new PC value is this magic value
Secure function return happens when a non-secure function has been
called using BLXNS and so has a particular magic LR value (either
0xfefe or 0xfeff). The function return via BX behaves
specially when the new PC value is this magic value, in the same
way that exception returns are handled.