michaelh/zephyr
1
0
Fork 0
Code Releases Activity

arch: arc: secure world only check secure interrupt

Browse source 
* in arc secureshield interrupts can be configured
  as secure or normal
* in sw design, high interrupt priorites are allocated to
  secure world, low priorities are allocated to normal world.
* secure interrupt > secure thread > normal interrupt > normal
  thead

So, here secure world/firmware only checks secure interrupt
priorities

Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
This commit is contained in:
Wayne Ren 2019-08-13 23:52:36 +08:00 • committed by Ioannis Glaropoulos
commit 146c7e8c7e
1 changed files with 4 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

4
arch/arc/include/swap_macros.h
View file

@ -300,7 +300,11 @@
*/
.macro _check_nest_int_by_irq_act reg1, reg2
lr \reg1, [_ARC_V2_AUX_IRQ_ACT]
#ifdef CONFIG_ARC_SECURE_FIRMWARE
and \reg1, \reg1, ((1 << ARC_N_IRQ_START_LEVEL) - 1)
#else
and \reg1, \reg1, 0xffff
#endif
ffs \reg2, \reg1
fls \reg1, \reg1
cmp \reg1, \reg2