From: "tip-bot2 for Josh Poimboeuf" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: Josh Poimboeuf <jpoimboe@kernel.org>,
Ingo Molnar <mingo@kernel.org>,
"Borislav Petkov (AMD)" <bp@alien8.de>,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: [tip: x86/bugs] x86/retpoline: Remove .text..__x86.return_thunk section
Date: Tue, 19 Sep 2023 09:53:09 -0000 [thread overview]
Message-ID: <169511718913.27769.5314218173944719644.tip-bot2@tip-bot2> (raw)
In-Reply-To: <291aad1dcb2d27c6241fe3f182d66119857757fd.1693889988.git.jpoimboe@kernel.org>
The following commit has been merged into the x86/bugs branch of tip:
Commit-ID: c8b840f7767b3178cc5fd92b70cc4c06c37943ac
Gitweb: https://git.kernel.org/tip/c8b840f7767b3178cc5fd92b70cc4c06c37943ac
Author: Josh Poimboeuf <jpoimboe@kernel.org>
AuthorDate: Mon, 04 Sep 2023 22:05:02 -07:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Tue, 19 Sep 2023 11:42:48 +02:00
x86/retpoline: Remove .text..__x86.return_thunk section
The '.text..__x86.return_thunk' section has no purpose. Remove it and
let the return thunk code live in '.text..__x86.indirect_thunk'.
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/291aad1dcb2d27c6241fe3f182d66119857757fd.1693889988.git.jpoimboe@kernel.org
---
arch/x86/kernel/vmlinux.lds.S | 3 ---
arch/x86/lib/retpoline.S | 2 --
2 files changed, 5 deletions(-)
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 54a5596..9cdb1a7 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -132,10 +132,7 @@ SECTIONS
LOCK_TEXT
KPROBES_TEXT
SOFTIRQENTRY_TEXT
-#ifdef CONFIG_RETPOLINE
*(.text..__x86.indirect_thunk)
- *(.text..__x86.return_thunk)
-#endif
STATIC_CALL_TEXT
ALIGN_ENTRY_TEXT_BEGIN
diff --git a/arch/x86/lib/retpoline.S b/arch/x86/lib/retpoline.S
index 415521d..49f2be7 100644
--- a/arch/x86/lib/retpoline.S
+++ b/arch/x86/lib/retpoline.S
@@ -129,8 +129,6 @@ SYM_CODE_END(__x86_indirect_jump_thunk_array)
#ifdef CONFIG_RETHUNK
- .section .text..__x86.return_thunk
-
#ifdef CONFIG_CPU_SRSO
/*
next prev parent reply other threads:[~2023-09-19 9:53 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-05 5:04 [PATCH v3 00/20] SRSO fixes/cleanups Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 01/20] x86/srso: Fix srso_show_state() side effect Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:45 ` [tip: x86/urgent] " tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 02/20] x86/srso: Set CPUID feature bits independently of bug or mitigation status Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:45 ` [tip: x86/urgent] " tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 03/20] x86/srso: Don't probe microcode in a guest Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:45 ` [tip: x86/urgent] " tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 04/20] x86/srso: Fix SBPB enablement for spec_rstack_overflow=off Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:45 ` [tip: x86/urgent] " tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 05/20] x86/srso: Fix SBPB enablement for (possible) future fixed HW Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 06/20] x86/srso: Print actual mitigation if requested mitigation isn't possible Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 07/20] x86/srso: Print mitigation for retbleed IBPB case Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 08/20] x86/srso: Fix vulnerability reporting for missing microcode Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 09/20] x86/srso: Fix unret validation dependencies Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 10/20] x86/alternatives: Remove faulty optimization Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 11/20] x86/srso: Improve i-cache locality for alias mitigation Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 12/20] x86/srso: Unexport untraining functions Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 13/20] x86/srso: Remove 'pred_cmd' label Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 14/20] x86/bugs: Remove default case for fully switched enums Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:04 ` [PATCH v3 15/20] x86/srso: Move retbleed IBPB check into existing 'has_microcode' code block Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:05 ` [PATCH v3 16/20] x86/srso: Disentangle rethunk-dependent options Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:05 ` [PATCH v3 17/20] x86/rethunk: Use SYM_CODE_START[_LOCAL]_NOALIGN macros Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:05 ` [PATCH v3 18/20] x86/retpoline: Remove .text..__x86.return_thunk section Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf [this message]
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:05 ` [PATCH v3 19/20] x86/nospec: Refactor UNTRAIN_RET[_*] Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 5:05 ` [PATCH v3 20/20] x86/calldepth: Rename __x86_return_skl() to call_depth_return_thunk() Josh Poimboeuf
2023-09-05 10:09 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
2023-09-19 9:53 ` tip-bot2 for Josh Poimboeuf
2023-09-23 12:20 ` tip-bot2 for Josh Poimboeuf
2023-10-20 11:37 ` tip-bot2 for Josh Poimboeuf
2023-09-05 6:35 ` [PATCH v3 00/20] SRSO fixes/cleanups Borislav Petkov
2023-09-05 10:02 ` Ingo Molnar
-- strict thread matches above, loose matches on Subject: below --
2023-08-25 7:01 [PATCH 21/23] x86/retpoline: Remove .text..__x86.return_thunk section Josh Poimboeuf
2023-08-25 10:19 ` [tip: x86/bugs] " tip-bot2 for Josh Poimboeuf
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