diff options
Diffstat (limited to 'services/std_svc/sdei/sdei_dispatch.S')
| -rw-r--r-- | services/std_svc/sdei/sdei_dispatch.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/services/std_svc/sdei/sdei_dispatch.S b/services/std_svc/sdei/sdei_dispatch.S new file mode 100644 index 0000000..8449e4b --- /dev/null +++ b/services/std_svc/sdei/sdei_dispatch.S @@ -0,0 +1,26 @@ +/* + * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <asm_macros.S> + + .globl begin_sdei_synchronous_dispatch + +/* + * void begin_sdei_synchronous_dispatch(jmp_buf *buffer); + * + * Begin SDEI dispatch synchronously by setting up a jump point, and exiting + * EL3. This jump point is jumped to by the dispatcher after the event is + * completed by the client. + */ +func begin_sdei_synchronous_dispatch + stp x30, xzr, [sp, #-16]! + bl setjmp + cbz x0, 1f + ldp x30, xzr, [sp], #16 + ret +1: + b el3_exit +endfunc begin_sdei_synchronous_dispatch |