From: Masami Hiramatsu <mhiramat@kernel.org>
To: Andrea Righi <righi.andrea@gmail.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Juergen Gross <jgross@suse.com>,
Stefano Stabellini <sstabellini@kernel.org>,
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: Re: [PATCH] kprobes/x86/xen: blacklist non-attachable xen interrupt functions
Date: Tue, 11 Dec 2018 18:43:00 +0900 [thread overview]
Message-ID: <20181211184300.810577f6087339bb0781068c@kernel.org> (raw)
In-Reply-To: <20181210151256.GA1977@Dell>
On Mon, 10 Dec 2018 16:12:57 +0100
Andrea Righi <righi.andrea@gmail.com> wrote:
> Blacklist symbols in Xen probe-prohibited areas, so that user can see
> these prohibited symbols in debugfs.
>
> See also: a50480cb6d61.
Looks good to me, thanks!
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
>
> 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
>
--
Masami Hiramatsu <mhiramat@kernel.org>
next prev parent reply other threads:[~2018-12-11 9:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-10 15:12 [PATCH] kprobes/x86/xen: blacklist non-attachable xen interrupt functions Andrea Righi
2018-12-11 9:43 ` Masami Hiramatsu [this message]
2018-12-17 15:57 ` Boris Ostrovsky
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