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From:   Sasha Levin <sashal@kernel.org>
To:     linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc:     Andrea Righi <righi.andrea@gmail.com>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>,
        Sasha Levin <sashal@kernel.org>, xen-devel@lists.xenproject.org
Subject: [PATCH AUTOSEL 4.19 080/219] kprobes/x86/xen: blacklist non-attachable xen interrupt functions
Date:   Fri, 22 Nov 2019 00:46:52 -0500
Message-Id: <20191122054911.1750-73-sashal@kernel.org>
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From: Andrea Righi <righi.andrea@gmail.com>

[ Upstream commit bf9445a33ae6ac2f0822d2f1ce1365408387d568 ]

Blacklist symbols in Xen probe-prohibited areas, so that user can see
these prohibited symbols in debugfs.

See also: a50480cb6d61.

Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/xen/xen-asm_64.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index 3a6feed76dfc1..a93d8a7cef26c 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -12,6 +12,7 @@
 #include <asm/segment.h>
 #include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
+#include <asm/asm.h>
 
 #include <xen/interface/xen.h>
 
@@ -24,6 +25,7 @@ ENTRY(xen_\name)
 	pop %r11
 	jmp  \name
 END(xen_\name)
+_ASM_NOKPROBE(xen_\name)
 .endm
 
 xen_pv_trap divide_error
-- 
2.20.1