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Message-ID: <20131120042231.15296.11510.stgit@kbuild-fedora.novalocal>
Date: Wed, 20 Nov 2013 04:22:31 +0000
From: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-arch@...r.kernel.org,
Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>,
Ananth N Mavinakayanahalli <ananth@...ibm.com>,
Gleb Natapov <gleb@...hat.com>,
Sandeepa Prabhu <sandeepa.prabhu@...aro.org>, x86@...nel.org,
lkml <linux-kernel@...r.kernel.org>,
"Steven Rostedt (Red Hat)" <rostedt@...dmis.org>,
virtualization@...ts.linux-foundation.org,
Marcelo Tosatti <mtosatti@...hat.com>,
Ingo Molnar <mingo@...hat.com>, systemtap@...rceware.org,
"H. Peter Anvin" <hpa@...or.com>,
Thomas Gleixner <tglx@...utronix.de>,
"David S. Miller" <davem@...emloft.net>
Subject: [PATCH -tip v3 17/23] x86/kvm: Use NOKPROBE_SYMBOL macro in kvm.c
Use NOKPROBE_SYMBOL macro for protecting functions
from kprobes instead of __kprobes annotation in kvm.c.
This also adds kvm_read_and_reset_pf_reason in
the blacklist because it can be called before
do_page_fault.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: Gleb Natapov <gleb@...hat.com>
Cc: Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@...hat.com>
---
arch/x86/kernel/kvm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 6dd802c..fb95987 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -251,8 +251,9 @@ u32 kvm_read_and_reset_pf_reason(void)
return reason;
}
EXPORT_SYMBOL_GPL(kvm_read_and_reset_pf_reason);
+NOKPROBE_SYMBOL(kvm_read_and_reset_pf_reason);
-dotraplinkage void __kprobes
+dotraplinkage void
do_async_page_fault(struct pt_regs *regs, unsigned long error_code)
{
enum ctx_state prev_state;
@@ -276,6 +277,7 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code)
break;
}
}
+NOKPROBE_SYMBOL(do_async_page_fault);
static void __init paravirt_ops_setup(void)
{
--
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