diff mbox series

[PATCHv6,01/15] x86/boot: Centralize __pa()/__va() definitions

Message ID 20220517153444.11195-2-kirill.shutemov@linux.intel.com
State Superseded
Headers show
Series mm, x86/cc: Implement support for unaccepted memory | expand

Commit Message

Kirill A. Shutemov May 17, 2022, 3:34 p.m. UTC 
Replace multiple __pa()/__va() definitions with a single one in misc.h.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
---
 arch/x86/boot/compressed/ident_map_64.c | 8 --------
 arch/x86/boot/compressed/misc.h         | 9 +++++++++
 arch/x86/boot/compressed/sev.c          | 2 --
 3 files changed, 9 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/arch/x86/boot/compressed/ident_map_64.c b/arch/x86/boot/compressed/ident_map_64.c
index 44c350d627c7..66a2e992c5f5 100644
--- a/arch/x86/boot/compressed/ident_map_64.c
+++ b/arch/x86/boot/compressed/ident_map_64.c
@@ -8,14 +8,6 @@ 
  * Copyright (C)      2016  Kees Cook
  */
 
-/*
- * Since we're dealing with identity mappings, physical and virtual
- * addresses are the same, so override these defines which are ultimately
- * used by the headers in misc.h.
- */
-#define __pa(x)  ((unsigned long)(x))
-#define __va(x)  ((void *)((unsigned long)(x)))
-
 /* No PAGE_TABLE_ISOLATION support needed either: */
 #undef CONFIG_PAGE_TABLE_ISOLATION
 
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index 4910bf230d7b..245cf8f2a0bd 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -19,6 +19,15 @@ 
 /* cpu_feature_enabled() cannot be used this early */
 #define USE_EARLY_PGTABLE_L5
 
+/*
+ * Boot stub deals with identity mappings, physical and virtual addresses are
+ * the same, so override these defines.
+ *
+ * <asm/page.h> will not define them if they are already defined.
+ */
+#define __pa(x)  ((unsigned long)(x))
+#define __va(x)  ((void *)((unsigned long)(x)))
+
 #include <linux/linkage.h>
 #include <linux/screen_info.h>
 #include <linux/elf.h>
diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c
index 52f989f6acc2..730c4677e9db 100644
--- a/arch/x86/boot/compressed/sev.c
+++ b/arch/x86/boot/compressed/sev.c
@@ -104,9 +104,7 @@  static enum es_result vc_read_mem(struct es_em_ctxt *ctxt,
 }
 
 #undef __init
-#undef __pa
 #define __init
-#define __pa(x)	((unsigned long)(x))
 
 #define __BOOT_COMPRESSED