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authorSoby Mathew <soby.mathew@arm.com>2015-10-27 10:01:06 +0000
committerSoby Mathew <soby.mathew@arm.com>2015-11-26 17:07:32 +0000
commit5471841870074043dc53f2bd1a52bc48970038e2 (patch)
tree3f7d8b6b563bc60ba45e45608de12387138970ec /bl31/bl31.mk
parentb39908af748fd273f28991f49c62eec775fce77c (diff)
downloadtrusted-firmware-a-5471841870074043dc53f2bd1a52bc48970038e2.tar.gz
Remove the IMF_READ_INTERRUPT_ID build option
The IMF_READ_INTERRUPT_ID build option enables a feature where the interrupt ID of the highest priority pending interrupt is passed as a parameter to the interrupt handler registered for that type of interrupt. This additional read of highest pending interrupt id from GIC is problematic as it is possible that the original interrupt may get deasserted and another interrupt of different type maybe become the highest pending interrupt. Hence it is safer to prevent such behaviour by removing the IMF_READ_INTERRUPT_ID build option. The `id` parameter of the interrupt handler `interrupt_type_handler_t` is now made a reserved parameter with this patch. It will always contain INTR_ID_UNAVAILABLE. Fixes ARM-software/tf-issues#307 Change-Id: I2173aae1dd37edad7ba6bdfb1a99868635fa34de
Diffstat (limited to 'bl31/bl31.mk')
-rw-r--r--bl31/bl31.mk7
1 files changed, 0 insertions, 7 deletions
diff --git a/bl31/bl31.mk b/bl31/bl31.mk
index 04e154200f..a31c1f475f 100644
--- a/bl31/bl31.mk
+++ b/bl31/bl31.mk
@@ -60,13 +60,6 @@ endif
BL31_LINKERFILE := bl31/bl31.ld.S
-# Flag used by the generic interrupt management framework to determine if
-# upon the assertion of an interrupt, it should pass the interrupt id or not
-IMF_READ_INTERRUPT_ID := 0
-
-$(eval $(call assert_boolean,IMF_READ_INTERRUPT_ID))
-$(eval $(call add_define,IMF_READ_INTERRUPT_ID))
-
# Flag used to inidicate if Crash reporting via console should be included
# in BL3-1. This defaults to being present in DEBUG builds only
ifndef CRASH_REPORTING