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kprobes/x86/xen: blacklist non-attachable xen interrupt functions

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[ Upstream commit bf9445a33a ]

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

See also: a50480cb6d.

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>
This commit is contained in:
Andrea Righi 2018-12-10 16:12:57 +01:00 committed by Greg Kroah-Hartman
parent 6f8c923839
commit e8113c362a
1 changed files with 2 additions and 0 deletions
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2
arch/x86/xen/xen-asm_64.S
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@ -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