forked from Mirrors/opensbi

This patch adds sbi_trap_set_external_irqfn() API which can be used by OpenSBI platform code to set a callback function for external interrupts. The RISC-V AIA IMSIC driver will use this API to implement inter-processor interrupts on-top-of MSIs. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Atish Patra <atishp@rivosinc.com>