Changeset cfd6efd2 in mainline

Timestamp:

2005-08-24T12:33:38Z (19 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

361635c

Parents:

6e787c4

Message:

Do not allow red area on stack in kernel mode.
Small updates for AMD64 memory layout.

Location:

arch/amd64

Files:

• Makefile.inc (modified) (1 diff)
• include/mm/page.h (modified) (1 diff)
• include/mm/vm.h (modified) (1 diff)

arch/amd64/Makefile.inc

@@ -11 +11 @@
 DEFS=-DARCH=$(ARCH)
 CPPFLAGS=$(DEFS) -nostdinc -I../include
-CFLAGS=$(CPPFLAGS) -nostdlib -fno-builtin -fno-unwind-tables -Wmissing-prototypes -Werror -O3 -march=opteron -m64 -mcmodel=kernel
+CFLAGS=$(CPPFLAGS) -nostdlib -fno-builtin -fno-unwind-tables -Wmissing-prototypes -Werror -O3 -march=opteron -m64 -mcmodel=kernel -mno-red-zone
 LFLAGS=-M -T ../arch/amd64/_link.ld
 

arch/amd64/include/mm/page.h

@@ -36 +36 @@
 #define PAGE_SIZE       FRAME_SIZE
 
-#define KA2PA(x)        (((__address) (x)) - 0x80000000)
-#define PA2KA(x)        (((__address) (x)) + 0x80000000)
+#define KA2PA(x)        (((__address) (x)) + 0x80000000)
+#define PA2KA(x)        (((__address) (x)) - 0x80000000)
 
 #define PTL0_INDEX_ARCH(vaddr)          0

arch/amd64/include/mm/vm.h

@@ -32 +32 @@
 #include <arch/types.h>
 
-#define KERNEL_ADDRESS_SPACE_START_ARCH         (__address) 0x80000000
-#define KERNEL_ADDRESS_SPACE_END_ARCH           (__address) 0xffffffff  
-#define USER_ADDRESS_SPACE_START_ARCH           (__address) 0x00000000
-#define USER_ADDRESS_SPACE_END_ARCH             (__address) 0x7fffffff
+#define KERNEL_ADDRESS_SPACE_START_ARCH         (__address) 0xffffffff80000000
+#define KERNEL_ADDRESS_SPACE_END_ARCH           (__address) 0xffffffffffffffff
+#define USER_ADDRESS_SPACE_START_ARCH           (__address) 0x0000000000000000
+#define USER_ADDRESS_SPACE_END_ARCH             (__address) 0x00008fffffffffff
 
 #define UTEXT_ADDRESS_ARCH      0x00001000
-#define USTACK_ADDRESS_ARCH     (0x7fffffff-(PAGE_SIZE-1))
+#define USTACK_ADDRESS_ARCH     (USER_ADDRESS_SPACE_END_ARCH-(PAGE_SIZE-1))
 #define UDATA_ADDRESS_ARCH      0x21000000