How to differentiate STM32L1 medium+ from high density devices?

[mitchd]

I have a project using an STM32L1 high density device. I've populated the necessary fields in stlink-common.h to communicate with the device. However, both the medium+ and high density devices share the same chip_id according to the macros in stlink-common

The memory specifications for the medium+ aren't really compatible with the high density device.

A link to my fork with the high density parameters populated:

git://github.com/mitchd/stlink.git