From: Nam Cao <namcaov@gmail.com>
Date: Mon, 21 Aug 2023 14:57:09 +0000 (+0200)
Subject: riscv: put interrupt entries into .irqentry.text
X-Git-Tag: v6.6.17~2574
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a08b414d1ecec1ddc22b2d87f5c189aab1b3097b;p=platform%2Fkernel%2Flinux-rpi.git

riscv: put interrupt entries into .irqentry.text

commit 87615e95f6f9ccd36d4a3905a2d87f91967ea9d2 upstream.

The interrupt entries are expected to be in the .irqentry.text section.
For example, for kprobes to work properly, exception code cannot be
probed; this is ensured by blacklisting addresses in the .irqentry.text
section.

Fixes: 7db91e57a0ac ("RISC-V: Task implementation")
Signed-off-by: Nam Cao <namcaov@gmail.com>
Link: https://lore.kernel.org/r/20230821145708.21270-1-namcaov@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
index 3d11aa3..278d01d 100644
--- a/arch/riscv/kernel/entry.S
+++ b/arch/riscv/kernel/entry.S
@@ -16,6 +16,8 @@
 #include <asm/errata_list.h>
 #include <linux/sizes.h>
 
+	.section .irqentry.text, "ax"
+
 SYM_CODE_START(handle_exception)
 	/*
 	 * If coming from userspace, preserve the user thread pointer and load