linux-kernel - [tip: x86/sev] x86/sev: Move the instrumentation exclusion bits too

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Date: Sat, 22 Jun 2024 11:32:30 -0000
From: "tip-bot2 for Borislav Petkov (AMD)" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: kernel test robot <lkp@...el.com>, "Borislav Petkov (AMD)" <bp@...en8.de>,
 x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: x86/sev] x86/sev: Move the instrumentation exclusion bits too

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

Commit-ID:     a7e7185ccd2acc4360e2cde688027cd1ecf10d93
Gitweb:        https://git.kernel.org/tip/a7e7185ccd2acc4360e2cde688027cd1ecf10d93
Author:        Borislav Petkov (AMD) <bp@...en8.de>
AuthorDate:    Sat, 22 Jun 2024 11:31:02 +02:00
Committer:     Borislav Petkov (AMD) <bp@...en8.de>
CommitterDate: Sat, 22 Jun 2024 13:20:35 +02:00

x86/sev: Move the instrumentation exclusion bits too

Commit in fixes moved the sev*.c compilation units to coco/ - the guest
confidential computing location - where they belong but forgot the
instrumentation exclusion build directives.

Move them too.

Fixes: 06685975c209 ("x86/sev: Move SEV compilation units")
Closes: https://lore.kernel.org/oe-kbuild-all/202406220748.hG3qlmDx-lkp@intel.com
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Borislav Petkov (AMD) <bp@...en8.de>
---
 arch/x86/coco/sev/Makefile | 8 ++++++++
 arch/x86/kernel/Makefile   | 4 ----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/x86/coco/sev/Makefile b/arch/x86/coco/sev/Makefile
index b89ba3f..5f72e92 100644
--- a/arch/x86/coco/sev/Makefile
+++ b/arch/x86/coco/sev/Makefile
@@ -1,3 +1,11 @@
 # SPDX-License-Identifier: GPL-2.0
 
 obj-y += core.o
+
+ifdef CONFIG_FUNCTION_TRACER
+CFLAGS_REMOVE_core.o = -pg
+endif
+
+KASAN_SANITIZE_core.o	:= n
+KMSAN_SANITIZE_core.o	:= n
+KCOV_INSTRUMENT_core.o	:= n
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index b22ceb9..a847180 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -17,7 +17,6 @@ CFLAGS_REMOVE_ftrace.o = -pg
 CFLAGS_REMOVE_early_printk.o = -pg
 CFLAGS_REMOVE_head64.o = -pg
 CFLAGS_REMOVE_head32.o = -pg
-CFLAGS_REMOVE_sev.o = -pg
 CFLAGS_REMOVE_rethook.o = -pg
 endif
 
@@ -26,19 +25,16 @@ KASAN_SANITIZE_dumpstack.o				:= n
 KASAN_SANITIZE_dumpstack_$(BITS).o			:= n
 KASAN_SANITIZE_stacktrace.o				:= n
 KASAN_SANITIZE_paravirt.o				:= n
-KASAN_SANITIZE_sev.o					:= n
 
 # With some compiler versions the generated code results in boot hangs, caused
 # by several compilation units. To be safe, disable all instrumentation.
 KCSAN_SANITIZE := n
 KMSAN_SANITIZE_head$(BITS).o				:= n
 KMSAN_SANITIZE_nmi.o					:= n
-KMSAN_SANITIZE_sev.o					:= n
 
 # If instrumentation of the following files is enabled, boot hangs during
 # first second.
 KCOV_INSTRUMENT_head$(BITS).o				:= n
-KCOV_INSTRUMENT_sev.o					:= n
 
 CFLAGS_irq.o := -I $(src)/../include/asm/trace