From: Andrea Righi <righi.andrea@gmail.com>
To: Masami Hiramatsu <mhiramat@kernel.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Juergen Gross <jgross@suse.com>,
Stefano Stabellini <sstabellini@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, xen-devel@lists.xenproject.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] kprobes/x86/xen: blacklist non-attachable xen interrupt functions
Date: Mon, 10 Dec 2018 16:12:57 +0100 [thread overview]
Message-ID: <20181210151256.GA1977@Dell> (raw)
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>
---
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 bb1c2da0381d..1e9ef0ba30a5 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
--
2.17.1
next reply other threads:[~2018-12-10 15:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-10 15:12 Andrea Righi [this message]
2018-12-11 9:43 ` [PATCH] kprobes/x86/xen: blacklist non-attachable xen interrupt functions Masami Hiramatsu
2018-12-17 15:57 ` Boris Ostrovsky
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