From: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Date: Tue, 22 Feb 2022 18:57:38 +0000 (+0300)
Subject: x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c}
X-Git-Tag: v5.18-rc1~214^2~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6198311093dabcafbe345d580c56b5d5a9ab5f3c;p=thirdparty%2Fkernel%2Flinux.git

x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c}

Move cc_platform.c to arch/x86/coco/. The directory is going to be the
home space for code related to confidential computing.

Intel TDX code will land here. AMD SEV code will also eventually be
moved there.

No functional changes.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20220222185740.26228-3-kirill.shutemov@linux.intel.com
---

diff --git a/arch/x86/Kbuild b/arch/x86/Kbuild
index f384cb1a4f7a8..5a83da703e876 100644
--- a/arch/x86/Kbuild
+++ b/arch/x86/Kbuild
@@ -1,4 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_ARCH_HAS_CC_PLATFORM) += coco/
+
 obj-y += entry/
 
 obj-$(CONFIG_PERF_EVENTS) += events/
diff --git a/arch/x86/coco/Makefile b/arch/x86/coco/Makefile
new file mode 100644
index 0000000000000..c1ead00017a7f
--- /dev/null
+++ b/arch/x86/coco/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS_REMOVE_core.o	= -pg
+KASAN_SANITIZE_core.o	:= n
+CFLAGS_core.o		+= -fno-stack-protector
+
+obj-y += core.o
diff --git a/arch/x86/kernel/cc_platform.c b/arch/x86/coco/core.c
similarity index 100%
rename from arch/x86/kernel/cc_platform.c
rename to arch/x86/coco/core.c
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 6aef9ee28a394..6462e3dd98f49 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -21,7 +21,6 @@ CFLAGS_REMOVE_ftrace.o = -pg
 CFLAGS_REMOVE_early_printk.o = -pg
 CFLAGS_REMOVE_head64.o = -pg
 CFLAGS_REMOVE_sev.o = -pg
-CFLAGS_REMOVE_cc_platform.o = -pg
 endif
 
 KASAN_SANITIZE_head$(BITS).o				:= n
@@ -30,7 +29,6 @@ KASAN_SANITIZE_dumpstack_$(BITS).o			:= n
 KASAN_SANITIZE_stacktrace.o				:= n
 KASAN_SANITIZE_paravirt.o				:= n
 KASAN_SANITIZE_sev.o					:= n
-KASAN_SANITIZE_cc_platform.o				:= n
 
 # With some compiler versions the generated code results in boot hangs, caused
 # by several compilation units. To be safe, disable all instrumentation.
@@ -49,7 +47,6 @@ endif
 KCOV_INSTRUMENT		:= n
 
 CFLAGS_head$(BITS).o	+= -fno-stack-protector
-CFLAGS_cc_platform.o	+= -fno-stack-protector
 
 CFLAGS_irq.o := -I $(srctree)/$(src)/../include/asm/trace
 
@@ -151,8 +148,6 @@ obj-$(CONFIG_UNWINDER_GUESS)		+= unwind_guess.o
 
 obj-$(CONFIG_AMD_MEM_ENCRYPT)		+= sev.o
 
-obj-$(CONFIG_ARCH_HAS_CC_PLATFORM)	+= cc_platform.o
-
 ###
 # 64 bit specific files
 ifeq ($(CONFIG_X86_64),y)