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author | Yatharth Kochar <yatharth.kochar@arm.com> | 2016-06-28 16:58:26 +0100 |
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committer | Yatharth Kochar <yatharth.kochar@arm.com> | 2016-09-21 16:27:15 +0100 |
commit | 1a0a3f0622e4b569513304109d9a0d093b71228a (patch) | |
tree | 9850566923168a92a6ec7ebbabe03119f14b2786 /common | |
parent | a8aa7fec1d4a6df8617c0d0463f1e10f1827a609 (diff) |
AArch32: Common changes needed for BL1/BL2
This patch adds common changes to support AArch32 state in
BL1 and BL2. Following are the changes:
* Added functions for disabling MMU from Secure state.
* Added AArch32 specific SMC function.
* Added semihosting support.
* Added reporting of unhandled exceptions.
* Added uniprocessor stack support.
* Added `el3_entrypoint_common` macro that can be
shared by BL1 and BL32 (SP_MIN) BL stages. The
`el3_entrypoint_common` is similar to the AArch64
counterpart with the main difference in the assembly
instructions and the registers that are relevant to
AArch32 execution state.
* Enabled `LOAD_IMAGE_V2` flag in Makefile for
`ARCH=aarch32` and added check to make sure that
platform has not overridden to disable it.
Change-Id: I33c6d8dfefb2e5d142fdfd06a0f4a7332962e1a3
Diffstat (limited to 'common')
-rw-r--r-- | common/aarch32/debug.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/common/aarch32/debug.S b/common/aarch32/debug.S index 01ec1e38..6be69512 100644 --- a/common/aarch32/debug.S +++ b/common/aarch32/debug.S @@ -32,6 +32,7 @@ #include <asm_macros.S> .globl do_panic + .globl report_exception /*********************************************************** * The common implementation of do_panic for all BL stages @@ -40,3 +41,14 @@ func do_panic b plat_panic_handler endfunc do_panic + /*********************************************************** + * This function is called from the vector table for + * unhandled exceptions. It reads the current mode and + * passes it to platform. + ***********************************************************/ +func report_exception + mrs r0, cpsr + and r0, #MODE32_MASK + bl plat_report_exception + bl plat_panic_handler +endfunc report_exception |