This is a note to let you know that I've just added the patch titled
riscv: put interrupt entries into .irqentry.text
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
riscv-put-interrupt-entries-into-.irqentry.text.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 87615e95f6f9ccd36d4a3905a2d87f91967ea9d2 Mon Sep 17 00:00:00 2001
From: Nam Cao <namcaov@xxxxxxxxx>
Date: Mon, 21 Aug 2023 16:57:09 +0200
Subject: riscv: put interrupt entries into .irqentry.text
From: Nam Cao <namcaov@xxxxxxxxx>
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@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230821145708.21270-1-namcaov@xxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/riscv/kernel/entry.S | 2 ++
1 file changed, 2 insertions(+)
--- 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
Patches currently in stable-queue which might be from namcaov@xxxxxxxxx are
queue-6.6/riscv-put-interrupt-entries-into-.irqentry.text.patch
queue-6.6/riscv-kprobes-allow-writing-to-x0.patch
queue-6.6/riscv-provide-riscv-specific-is_trap_insn.patch
