diff options
| author | Jeenu Viswambharan <jeenu.viswambharan@arm.com> | 2017-10-16 08:43:14 +0100 |
|---|---|---|
| committer | Jeenu Viswambharan <jeenu.viswambharan@arm.com> | 2017-11-13 08:38:51 +0000 |
| commit | b7cb133e5c56f149024a56873216f0c198aa9635 (patch) | |
| tree | 433b74c05447effe493478659701ac64776310e1 /plat/common | |
| parent | 3d732e23e71343f2ba18d456c8f2163015209768 (diff) | |
BL31: Add SDEI dispatcher
The implementation currently supports only interrupt-based SDEI events,
and supports all interfaces as defined by SDEI specification version
1.0 [1].
Introduce the build option SDEI_SUPPORT to include SDEI dispatcher in
BL31.
Update user guide and porting guide. SDEI documentation to follow.
[1] http://infocenter.arm.com/help/topic/com.arm.doc.den0054a/ARM_DEN0054A_Software_Delegated_Exception_Interface.pdf
Change-Id: I758b733084e4ea3b27ac77d0259705565842241a
Co-authored-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
Diffstat (limited to 'plat/common')
| -rw-r--r-- | plat/common/aarch64/plat_common.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/plat/common/aarch64/plat_common.c b/plat/common/aarch64/plat_common.c index 05084e19..a87e7c67 100644 --- a/plat/common/aarch64/plat_common.c +++ b/plat/common/aarch64/plat_common.c @@ -3,6 +3,8 @@ * * SPDX-License-Identifier: BSD-3-Clause */ + +#include <arch_helpers.h> #include <assert.h> #include <console.h> #include <platform.h> @@ -20,6 +22,11 @@ #pragma weak plat_get_syscnt_freq2 #endif /* ERROR_DEPRECATED */ +#if SDEI_SUPPORT +#pragma weak plat_sdei_handle_masked_trigger +#pragma weak plat_sdei_validate_entry_point +#endif + void bl31_plat_enable_mmu(uint32_t flags) { enable_mmu_el3(flags); @@ -64,3 +71,22 @@ unsigned int plat_get_syscnt_freq2(void) return (unsigned int)freq; } #endif /* ERROR_DEPRECATED */ + +#if SDEI_SUPPORT +/* + * Function that handles spurious SDEI interrupts while events are masked. + */ +void plat_sdei_handle_masked_trigger(uint64_t mpidr, unsigned int intr) +{ + WARN("Spurious SDEI interrupt %u on masked PE %lx\n", intr, mpidr); +} + +/* + * Default Function to validate SDEI entry point, which returns success. + * Platforms may override this with their own validation mechanism. + */ +int plat_sdei_validate_entry_point(uintptr_t ep, unsigned int client_mode) +{ + return 0; +} +#endif |