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Enable Debug and SError exceptions on warm boot path 

Enable Debug and SError exceptions:
 - when receiving an SMC;
 - when a CPU is physically powered up (upon resumption from suspend
   or in response to a PSCI cpu_on call)

Change-Id: I7e5613e34034be6ed68ec9e2aef4de66aa5ac65e
This commit is contained in:
Sandrine Bailleux 2014-05-23 13:03:21 +01:00
parent b78f25bf3d
commit 8a40778c75
2 changed files with 12 additions and 0 deletions
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6
bl31/aarch64/runtime_exceptions.S
View File

@ -44,6 +44,12 @@
* -----------------------------------------------------
*/
.macro handle_sync_exception
/* ---------------------------------------------
* Enable Debug and SError interrupts
* ---------------------------------------------
*/
msr daifclr, #(DAIF_ABT_BIT | DAIF_DBG_BIT)
str x30, [sp, #CTX_GPREGS_OFFSET + CTX_GPREG_LR]
mrs x30, esr_el3
ubfx x30, x30, #ESR_EC_SHIFT, #ESR_EC_LENGTH

6
services/std_svc/psci/psci_entry.S
View File

@ -70,6 +70,12 @@ psci_aff_common_finish_entry:
msr vbar_el3, x0
isb
/* ---------------------------------------------
* Enable Debug and SError interrupts
* ---------------------------------------------
*/
msr daifclr, #(DAIF_ABT_BIT | DAIF_DBG_BIT)
/* ---------------------------------------------
* Use SP_EL0 for the C runtime stack.
* ---------------------------------------------