Add helper library for cpu context management
This patch introduces functions for saving and restoring shared system registers between secure and non-secure EL1 exception levels, VFP registers and essential EL3 system register and other state. It also defines the 'cpu_context' data structure which will used for saving and restoring execution context for a given security state. These functions will allow runtime services like PSCI and Secure payload dispatcher to implement logic for switching between the secure and non-secure states. The save and restore functions follow AArch64 PCS and only use caller-saved temporary registers. Change-Id: I8ee3aaa061d3caaedb28ae2c5becb9a206b6fd74
WIP_v2.3-LS
master
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for-v0.4/05.22
for-v0.4/05.21
for-v0.4/05.20
for-v0.4-rc0
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bl31/aarch64/context.S 0 → 100644 |
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bl31/bl31.mk |
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include/context.h 0 → 100644 |
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