On 10/12/2016 01:50 PM, Thomas Hanson wrote: ... > > Still looking into handling of tagged addresses for exceptions and > exception returns. Will handle that as a separate patch set.
Peter, Looking at arm_cpu_do_interrupt_aarch64() and the ARM spec, the new PC value is always an offset from the appropriate VBAR. The only place I can find the the VBAR being set is at boot time (i.e. UEFI). Can the boot code use a tagged pointer to specify the VBAR? Is there some other place/time when the VBAR can be modified post-boot? Thanks, Tom
