tree a9becb56474891281bd5abdf70a85b6520908b20
parent 9ac63c59c4b6de7e48a6702ad799dc961a4fd6de
author Achin Gupta <achin.gupta@arm.com> 1391241088 +0000
committer Dan Handley <dan.handley@arm.com> 1392663104 +0000

Add context management library

This patch adds support for a cpu context management library. This
library will be used to:

1. Share pointers to secure and non-secure state cpu contexts between
   runtime services e.g. PSCI and Secure Payload Dispatcher services
2. Set SP_EL3 to a context structure which will be used for
   programming an ERET into a lower EL
3. Provide wrapper functions to save and restore EL3 & EL1
   state. These functions will in turn use the helper functions in
   context.S

Change-Id: I655eeef83dcd2a0c6f2eb2ac23efab866ac83ca0