From 8ac39e2974d9f1395969a500e692f45717c4ccf2 Mon Sep 17 00:00:00 2001 From: Lukas Auer Date: Sun, 17 Mar 2019 19:28:40 +0100 Subject: [PATCH] riscv: hang if relocation of secondary harts fails Print an error message and hang if smp_call_function() returns an error, indicating that relocation of the secondary harts has failed. Signed-off-by: Lukas Auer Reviewed-by: Bin Meng Tested-by: Bin Meng Reviewed-by: Anup Patel --- arch/riscv/cpu/start.S | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S index 5ac899b..a4433fb 100644 --- a/arch/riscv/cpu/start.S +++ b/arch/riscv/cpu/start.S @@ -33,6 +33,10 @@ #define SYM_SIZE 0x18 #endif +.section .data +secondary_harts_relocation_error: + .ascii "Relocation of secondary harts has failed, error %d\n" + .section .text .globl _start _start: @@ -274,8 +278,15 @@ relocate_secondary_harts: mv a2, s3 jal smp_call_function + /* hang if relocation of secondary harts has failed */ + beqz a0, 1f + mv a1, a0 + la a0, secondary_harts_relocation_error + jal printf + jal hang + /* restore relocation offset */ - mv t6, s5 +1: mv t6, s5 #endif /* -- 2.7.4