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| author | Soby Mathew <soby.mathew@arm.com> | 2015-01-13 15:48:26 +0000 |
|---|---|---|
| committer | Soby Mathew <soby.mathew@arm.com> | 2015-01-26 15:29:32 +0000 |
| commit | f4f1ae777b321e5e16ee1ba4591ea9d45845edef (patch) | |
| tree | c7363c13236627b9d9c12a28c3518d12268fa1d2 /include/bl31 | |
| parent | 07ddb33a8e186c0e1daade975e52beba92a266e7 (diff) | |
| download | platform_external_arm-trusted-firmware-f4f1ae777b321e5e16ee1ba4591ea9d45845edef.tar.gz platform_external_arm-trusted-firmware-f4f1ae777b321e5e16ee1ba4591ea9d45845edef.tar.bz2 platform_external_arm-trusted-firmware-f4f1ae777b321e5e16ee1ba4591ea9d45845edef.zip | |
Demonstrate model for routing IRQs to EL3
This patch provides an option to specify a interrupt routing model
where non-secure interrupts (IRQs) are routed to EL3 instead of S-EL1.
When such an interrupt occurs, the TSPD arranges a return to
the normal world after saving any necessary context. The interrupt
routing model to route IRQs to EL3 is enabled only during STD SMC
processing. Thus the pre-emption of S-EL1 is disabled during Fast SMC
and Secure Interrupt processing.
A new build option TSPD_ROUTE_NS_INT_EL3 is introduced to change
the non secure interrupt target execution level to EL3.
Fixes ARM-software/tf-issues#225
Change-Id: Ia1e779fbbb6d627091e665c73fa6315637cfdd32
Diffstat (limited to 'include/bl31')
| -rw-r--r-- | include/bl31/interrupt_mgmt.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/bl31/interrupt_mgmt.h b/include/bl31/interrupt_mgmt.h index 3a2c00c2d..e07ddf83b 100644 --- a/include/bl31/interrupt_mgmt.h +++ b/include/bl31/interrupt_mgmt.h @@ -63,7 +63,8 @@ #define INTR_NS_VALID_RM0 0x0 /* Routed to EL1/EL2 from NS and to EL3 from Secure */ #define INTR_NS_VALID_RM1 0x1 - +/* This is the default routing model */ +#define INTR_DEFAULT_RM 0x0 /******************************************************************************* * Constants for the _individual_ routing model bits in the 'flags' field for @@ -123,6 +124,8 @@ int32_t register_interrupt_type_handler(uint32_t type, interrupt_type_handler_t handler, uint32_t flags); interrupt_type_handler_t get_interrupt_type_handler(uint32_t interrupt_type); +int disable_intr_rm_local(uint32_t type, uint32_t security_state); +int enable_intr_rm_local(uint32_t type, uint32_t security_state); #endif /*__ASSEMBLY__*/ #endif /* __INTERRUPT_MGMT_H__ */ |