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Subject[PATCH 2/4] x86: Rename cc_platform.c to arch/x86/coco/core.c
Date
Move cc_platform.c to the newly created arch/x86/coco. The directly is
going to be a home space for code related to confidential computing.

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

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
---
arch/x86/Kbuild | 2 ++
arch/x86/coco/Makefile | 6 ++++++
arch/x86/{kernel/cc_platform.c => coco/core.c} | 0
arch/x86/kernel/Makefile | 5 -----
4 files changed, 8 insertions(+), 5 deletions(-)
create mode 100644 arch/x86/coco/Makefile
rename arch/x86/{kernel/cc_platform.c => coco/core.c} (100%)

diff --git a/arch/x86/Kbuild b/arch/x86/Kbuild
index f384cb1a4f7a..5a83da703e87 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 000000000000..c1ead00017a7
--- /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 6aef9ee28a39..6462e3dd98f4 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)
--
2.34.1
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