uVision 4.10 with ST-LINK and STM32F103Z - special registers not visible

I'm using the STM3210E-EVAL board, which has a STM32F103ZD on it. When debugging with ULINK I can see all registers in the register view, when debugging with ST-LINK I can only see the core registers. Is there some tweak to enable viewing the special registers or is the ST-LINK incapable of supporting that?

IAR with ST-LINK shows some of the special registers (MSP/PSP) but not the others (CONTROL, PRIMASK, FAULTMASK or BASEPRI).

Trying to figure out whether this is a Keil or ST problem...

Thanks,
Andrew