linux-kernel - [tip: x86/urgent] x86/mm/tlb/trace: Export the TLB_REMOTE_WRONG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <176562043619.498.7745633750615805482.tip-bot2@tip-bot2>
Date: Sat, 13 Dec 2025 10:07:16 -0000
From: "tip-bot2 for Tal Zussman" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Tal Zussman <tz2294@...umbia.edu>, Ingo Molnar <mingo@...nel.org>,
 "Steven Rostedt (Google)" <rostedt@...dmis.org>,
 David Hildenbrand <david@...hat.com>, Rik van Riel <riel@...riel.com>,
 x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: x86/urgent] x86/mm/tlb/trace: Export the TLB_REMOTE_WRONG_CPU
 enum in <trace/events/tlb.h>

The following commit has been merged into the x86/urgent branch of tip:

Commit-ID:     8b62e64e6d30fa047b3aefb1a36e1f80c8acb3d2
Gitweb:        https://git.kernel.org/tip/8b62e64e6d30fa047b3aefb1a36e1f80c8acb3d2
Author:        Tal Zussman <tz2294@...umbia.edu>
AuthorDate:    Fri, 12 Dec 2025 04:08:07 -05:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Sat, 13 Dec 2025 11:01:16 +01:00

x86/mm/tlb/trace: Export the TLB_REMOTE_WRONG_CPU enum in <trace/events/tlb.h>

When the TLB_REMOTE_WRONG_CPU enum was introduced for the tlb_flush
tracepoint, the enum was not exported to user-space. Add it to the
appropriate macro definition to enable parsing by userspace tools, as
per:

  Link: https://lore.kernel.org/all/20150403013802.220157513@goodmis.org

[ mingo: Capitalize IPI, etc. ]

Fixes: 2815a56e4b72 ("x86/mm/tlb: Add tracepoint for TLB flush IPI to stale CPU")
Signed-off-by: Tal Zussman <tz2294@...umbia.edu>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@...dmis.org>
Reviewed-by: David Hildenbrand <david@...hat.com>
Reviewed-by: Rik van Riel <riel@...riel.com>
Link: https://patch.msgid.link/20251212-tlb-trace-fix-v2-1-d322e0ad9b69@columbia.edu
---
 include/trace/events/tlb.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h
index b4d8e7d..fb83695 100644
--- a/include/trace/events/tlb.h
+++ b/include/trace/events/tlb.h
@@ -12,8 +12,9 @@
 	EM(  TLB_FLUSH_ON_TASK_SWITCH,	"flush on task switch" )	\
 	EM(  TLB_REMOTE_SHOOTDOWN,	"remote shootdown" )		\
 	EM(  TLB_LOCAL_SHOOTDOWN,	"local shootdown" )		\
-	EM(  TLB_LOCAL_MM_SHOOTDOWN,	"local mm shootdown" )		\
-	EMe( TLB_REMOTE_SEND_IPI,	"remote ipi send" )
+	EM(  TLB_LOCAL_MM_SHOOTDOWN,	"local MM shootdown" )		\
+	EM(  TLB_REMOTE_SEND_IPI,	"remote IPI send" )		\
+	EMe( TLB_REMOTE_WRONG_CPU,	"remote wrong CPU" )
 
 /*
  * First define the enums in TLB_FLUSH_REASON to be exported to userspace