Displaying 6 results from an estimated 6 matches for "prepare_protected_seg".
2007 Apr 18
0
[PATCH 8/21] i386 Segment protect properly
...==================
--- linux-2.6.14-zach-work.orig/include/asm-i386/desc.h 2005-11-04 17:45:02.000000000 -0800
+++ linux-2.6.14-zach-work/include/asm-i386/desc.h 2005-11-05 00:28:08.000000000 -0800
@@ -158,6 +158,15 @@ static inline unsigned long get_desc_bas
return base;
}
+static inline void prepare_protected_segment(int cpu, int gdt_entry, void *base, u32 size)
+{
+ struct desc_struct *gdt = get_cpu_gdt_table(cpu);
+
+ /* Forced zero-length segments to 1-byte access at unmapped page zero */
+ set_base(gdt[gdt_entry], size > 0 ? (u32)base : 0);
+ set_limit(gdt[gdt_entry], size > 0 ? size - 1 : 0);
+}...
2007 Apr 18
0
[PATCH 8/21] i386 Segment protect properly
...==================
--- linux-2.6.14-zach-work.orig/include/asm-i386/desc.h 2005-11-04 17:45:02.000000000 -0800
+++ linux-2.6.14-zach-work/include/asm-i386/desc.h 2005-11-05 00:28:08.000000000 -0800
@@ -158,6 +158,15 @@ static inline unsigned long get_desc_bas
return base;
}
+static inline void prepare_protected_segment(int cpu, int gdt_entry, void *base, u32 size)
+{
+ struct desc_struct *gdt = get_cpu_gdt_table(cpu);
+
+ /* Forced zero-length segments to 1-byte access at unmapped page zero */
+ set_base(gdt[gdt_entry], size > 0 ? (u32)base : 0);
+ set_limit(gdt[gdt_entry], size > 0 ? size - 1 : 0);
+}...
2007 Apr 18
0
[PATCH 10/21] i386 Use protected segment for 16bit stack
Use prepare_protected_segment macro to set up the 16-bit stack.
Whee!! This code is almost readable now.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Index: linux-2.6.14-zach-work/arch/i386/kernel/cpu/common.c
===================================================================
--- linux-2.6.14-zach-work.orig/arch...
2007 Apr 18
0
[PATCH 10/21] i386 Use protected segment for 16bit stack
Use prepare_protected_segment macro to set up the 16-bit stack.
Whee!! This code is almost readable now.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Index: linux-2.6.14-zach-work/arch/i386/kernel/cpu/common.c
===================================================================
--- linux-2.6.14-zach-work.orig/arch...
2007 Apr 18
3
[PATCH 12/21] i386 Deprecate descriptor asm
...load_LDT(mm_context_t
put_cpu();
}
-static inline unsigned long get_desc_base(unsigned long *desc)
-{
- unsigned long base;
- base = ((desc[0] >> 16) & 0x0000ffff) |
- ((desc[1] << 16) & 0x00ff0000) |
- (desc[1] & 0xff000000);
- return base;
-}
-
static inline void prepare_protected_segment(int cpu, int gdt_entry, void *base, u32 size)
{
struct desc_struct *gdt = get_cpu_gdt_table(cpu);
/* Forced zero-length segments to 1-byte access at unmapped page zero */
- set_base(gdt[gdt_entry], size > 0 ? (u32)base : 0);
- set_limit(gdt[gdt_entry], size > 0 ? size - 1 : 0);
+ s...
2007 Apr 18
3
[PATCH 12/21] i386 Deprecate descriptor asm
...load_LDT(mm_context_t
put_cpu();
}
-static inline unsigned long get_desc_base(unsigned long *desc)
-{
- unsigned long base;
- base = ((desc[0] >> 16) & 0x0000ffff) |
- ((desc[1] << 16) & 0x00ff0000) |
- (desc[1] & 0xff000000);
- return base;
-}
-
static inline void prepare_protected_segment(int cpu, int gdt_entry, void *base, u32 size)
{
struct desc_struct *gdt = get_cpu_gdt_table(cpu);
/* Forced zero-length segments to 1-byte access at unmapped page zero */
- set_base(gdt[gdt_entry], size > 0 ? (u32)base : 0);
- set_limit(gdt[gdt_entry], size > 0 ? size - 1 : 0);
+ s...