The stvec's value must be 4 byte alignment by specification definition.
This directive avoids to stvec be set the non-alignment value by the
following code in head.S
/* Point stvec to virtual address of intruction after satp write */
la a0, 1f
add a0, a0, a1
csrw stvec, a0
Signed-off-by: Zong Li <z...@andestech.com>
---
arch/riscv/kernel/head.S | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S
index 396ec7b349ce..ae7b204f531c 100644
--- a/arch/riscv/kernel/head.S
+++ b/arch/riscv/kernel/head.S
@@ -94,6 +94,7 @@ relocate:
or a0, a0, a1
sfence.vma
csrw sptbr, a0
+.align 2
1:
/* Set trap vector to spin forever to help debug */
la a0, .Lsecondary_park
--
2.16.1
