linux-kernel - [PATCH v1 3/4] x86/sev: Rename mem_encrypt.c to mem_encrypt

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Date:   Mon, 15 Nov 2021 16:45:27 -0800
From:   Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        Tom Lendacky <thomas.lendacky@....com>
Cc:     Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        "H . Peter Anvin" <hpa@...or.com>, Tony Luck <tony.luck@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
        Kuppuswamy Sathyanarayanan <knsathya@...nel.org>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1 3/4] x86/sev: Rename mem_encrypt.c to mem_encrypt_amd.c

Both TDX and AMD SEV/SME implement memory encryption features. But
the bulk of the code in mem_encrypt.c is AMD specific. Rename the
file to mem_encrypt_amd.c. A subsequent patch will extract the
parts that can be shared by both TDX and AMD SEV/SME into a generic
file.

No functional changes.

Reviewed-by: Tony Luck <tony.luck@...el.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>
---
 arch/x86/mm/Makefile                             | 8 ++++----
 arch/x86/mm/{mem_encrypt.c => mem_encrypt_amd.c} | 0
 2 files changed, 4 insertions(+), 4 deletions(-)
 rename arch/x86/mm/{mem_encrypt.c => mem_encrypt_amd.c} (100%)

diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index 5864219221ca..c9c480641153 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -1,10 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0
 # Kernel does not boot with instrumentation of tlb.c and mem_encrypt*.c
 KCOV_INSTRUMENT_tlb.o			:= n
-KCOV_INSTRUMENT_mem_encrypt.o		:= n
+KCOV_INSTRUMENT_mem_encrypt_amd.o	:= n
 KCOV_INSTRUMENT_mem_encrypt_identity.o	:= n
 
-KASAN_SANITIZE_mem_encrypt.o		:= n
+KASAN_SANITIZE_mem_encrypt_amd.o	:= n
 KASAN_SANITIZE_mem_encrypt_identity.o	:= n
 
 # Disable KCSAN entirely, because otherwise we get warnings that some functions
@@ -12,7 +12,7 @@ KASAN_SANITIZE_mem_encrypt_identity.o	:= n
 KCSAN_SANITIZE := n
 
 ifdef CONFIG_FUNCTION_TRACER
-CFLAGS_REMOVE_mem_encrypt.o		= -pg
+CFLAGS_REMOVE_mem_encrypt_amd.o		= -pg
 CFLAGS_REMOVE_mem_encrypt_identity.o	= -pg
 endif
 
@@ -52,6 +52,6 @@ obj-$(CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS)	+= pkeys.o
 obj-$(CONFIG_RANDOMIZE_MEMORY)			+= kaslr.o
 obj-$(CONFIG_PAGE_TABLE_ISOLATION)		+= pti.o
 
-obj-$(CONFIG_AMD_MEM_ENCRYPT)	+= mem_encrypt.o
+obj-$(CONFIG_AMD_MEM_ENCRYPT)	+= mem_encrypt_amd.o
 obj-$(CONFIG_AMD_MEM_ENCRYPT)	+= mem_encrypt_identity.o
 obj-$(CONFIG_AMD_MEM_ENCRYPT)	+= mem_encrypt_boot.o
diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt_amd.c
similarity index 100%
rename from arch/x86/mm/mem_encrypt.c
rename to arch/x86/mm/mem_encrypt_amd.c
-- 
2.25.1