Displaying 20 results from an estimated 251 matches for "desc_struct".
2007 Dec 06
51
[PATCH 0/19] desc_struct integration
Hi,
this is a series of patches that unify the struct desc_struct and friends
across x86_64 and i386. As usual, it provides paravirt capabilities as a
side-effect for x86_64.
I consider the main goal, namely, of unifying the desc_struct, an ongoing
effort, being this the beginning. A lot of old code has to be touched to
accomplish that.
I don't consider th...
2007 Dec 06
51
[PATCH 0/19] desc_struct integration
Hi,
this is a series of patches that unify the struct desc_struct and friends
across x86_64 and i386. As usual, it provides paravirt capabilities as a
side-effect for x86_64.
I consider the main goal, namely, of unifying the desc_struct, an ongoing
effort, being this the beginning. A lot of old code has to be touched to
accomplish that.
I don't consider th...
2007 Apr 18
1
[PATCH 2/12] ldt-accessors
...4) && (current->mm)) {
- lp = (unsigned long *) ((unsigned long)((regs->xcs >> 3) * 8)
- + (char *) current->mm->context.ldt);
- addr = (kprobe_opcode_t *) (get_desc_base(lp) + regs->eip -
+ if (segment_is_ldt(regs->xcs) && (current->mm)) {
+ struct desc_struct *desc = &LDT_DESCRIPTOR(regs->xcs);
+ addr = (kprobe_opcode_t *) (get_desc_base(desc) + regs->eip -
sizeof(kprobe_opcode_t));
} else {
addr = (kprobe_opcode_t *)(regs->eip - sizeof(kprobe_opcode_t));
Index: linux-2.6.13/arch/i386/math-emu/fpu_system.h
=====================...
2007 Apr 18
1
[PATCH 2/12] ldt-accessors
...4) && (current->mm)) {
- lp = (unsigned long *) ((unsigned long)((regs->xcs >> 3) * 8)
- + (char *) current->mm->context.ldt);
- addr = (kprobe_opcode_t *) (get_desc_base(lp) + regs->eip -
+ if (segment_is_ldt(regs->xcs) && (current->mm)) {
+ struct desc_struct *desc = &LDT_DESCRIPTOR(regs->xcs);
+ addr = (kprobe_opcode_t *) (get_desc_base(desc) + regs->eip -
sizeof(kprobe_opcode_t));
} else {
addr = (kprobe_opcode_t *)(regs->eip - sizeof(kprobe_opcode_t));
Index: linux-2.6.13/arch/i386/math-emu/fpu_system.h
=====================...
2007 Apr 18
3
[PATCH 12/21] i386 Deprecate descriptor asm
...sm-i386/desc.h
===================================================================
--- linux-2.6.14-zach-work.orig/include/asm-i386/desc.h 2005-11-04 17:45:04.000000000 -0800
+++ linux-2.6.14-zach-work/include/asm-i386/desc.h 2005-11-05 00:28:07.000000000 -0800
@@ -49,20 +49,68 @@ extern struct Xgt_desc_struct idt_descr,
extern struct desc_struct default_ldt[];
extern void set_intr_gate(unsigned int irq, void * addr);
-#define _set_tssldt_desc(n,addr,limit,type) \
-__asm__ __volatile__ ("movw %w3,0(%2)\n\t" \
- "movw %w1,2(%2)\n\t" \
- "rorl $16,%1\n\t" \
- "movb %b...
2007 Apr 18
3
[PATCH 12/21] i386 Deprecate descriptor asm
...sm-i386/desc.h
===================================================================
--- linux-2.6.14-zach-work.orig/include/asm-i386/desc.h 2005-11-04 17:45:04.000000000 -0800
+++ linux-2.6.14-zach-work/include/asm-i386/desc.h 2005-11-05 00:28:07.000000000 -0800
@@ -49,20 +49,68 @@ extern struct Xgt_desc_struct idt_descr,
extern struct desc_struct default_ldt[];
extern void set_intr_gate(unsigned int irq, void * addr);
-#define _set_tssldt_desc(n,addr,limit,type) \
-__asm__ __volatile__ ("movw %w3,0(%2)\n\t" \
- "movw %w1,2(%2)\n\t" \
- "rorl $16,%1\n\t" \
- "movb %b...
2007 Apr 18
2
[PATCH 8/14] i386 / Add a per cpu gdt accessor
...x: linux-2.6.13/include/asm-i386/desc.h
===================================================================
--- linux-2.6.13.orig/include/asm-i386/desc.h 2005-08-09 20:17:21.000000000 -0700
+++ linux-2.6.13/include/asm-i386/desc.h 2005-08-10 20:41:03.000000000 -0700
@@ -39,6 +39,8 @@
extern struct desc_struct cpu_gdt_table[GDT_ENTRIES];
DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]);
+#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table, _cpu))
+
DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
struct Xgt_desc_struct {
Index: linux-2.6.13/include/asm-i386/...
2007 Apr 18
2
[PATCH 8/14] i386 / Add a per cpu gdt accessor
...x: linux-2.6.13/include/asm-i386/desc.h
===================================================================
--- linux-2.6.13.orig/include/asm-i386/desc.h 2005-08-09 20:17:21.000000000 -0700
+++ linux-2.6.13/include/asm-i386/desc.h 2005-08-10 20:41:03.000000000 -0700
@@ -39,6 +39,8 @@
extern struct desc_struct cpu_gdt_table[GDT_ENTRIES];
DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]);
+#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table, _cpu))
+
DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
struct Xgt_desc_struct {
Index: linux-2.6.13/include/asm-i386/...
2007 Apr 18
0
[PATCH 18/21] i386 Ldt cleanups 2
...-i386/desc.h
===================================================================
--- linux-2.6.14-zach-work.orig/include/asm-i386/desc.h 2005-11-04 18:10:53.000000000 -0800
+++ linux-2.6.14-zach-work/include/asm-i386/desc.h 2005-11-05 00:28:03.000000000 -0800
@@ -30,7 +30,24 @@ static inline struct desc_struct *get_cp
{
return ((struct desc_struct *)cpu_gdt_descr[cpu].address);
}
-
+
+static inline int segment_from_ldt(unsigned int segment)
+{
+ return segment & LDT_SEGMENT;
+}
+
+static inline struct desc_struct *get_gdt_desc(int cpu, unsigned int segment)
+{
+ char *gdt = (char *)get_cpu_gdt_...
2007 Apr 18
0
[PATCH 18/21] i386 Ldt cleanups 2
...-i386/desc.h
===================================================================
--- linux-2.6.14-zach-work.orig/include/asm-i386/desc.h 2005-11-04 18:10:53.000000000 -0800
+++ linux-2.6.14-zach-work/include/asm-i386/desc.h 2005-11-05 00:28:03.000000000 -0800
@@ -30,7 +30,24 @@ static inline struct desc_struct *get_cp
{
return ((struct desc_struct *)cpu_gdt_descr[cpu].address);
}
-
+
+static inline int segment_from_ldt(unsigned int segment)
+{
+ return segment & LDT_SEGMENT;
+}
+
+static inline struct desc_struct *get_gdt_desc(int cpu, unsigned int segment)
+{
+ char *gdt = (char *)get_cpu_gdt_...
2007 Apr 18
0
[PATCH 7/12] gdt-accessor
...x: linux-2.6.13/include/asm-i386/desc.h
===================================================================
--- linux-2.6.13.orig/include/asm-i386/desc.h 2005-08-08 17:15:56.000000000 -0700
+++ linux-2.6.13/include/asm-i386/desc.h 2005-08-08 17:16:07.000000000 -0700
@@ -21,6 +21,8 @@
extern struct desc_struct cpu_gdt_table[GDT_ENTRIES];
DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]);
+#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table, _cpu))
+
DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
struct Xgt_desc_struct {
@@ -68,7 +70,7 @@
static inline...
2007 Apr 18
0
[PATCH 7/12] gdt-accessor
...x: linux-2.6.13/include/asm-i386/desc.h
===================================================================
--- linux-2.6.13.orig/include/asm-i386/desc.h 2005-08-08 17:15:56.000000000 -0700
+++ linux-2.6.13/include/asm-i386/desc.h 2005-08-08 17:16:07.000000000 -0700
@@ -21,6 +21,8 @@
extern struct desc_struct cpu_gdt_table[GDT_ENTRIES];
DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]);
+#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table, _cpu))
+
DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
struct Xgt_desc_struct {
@@ -68,7 +70,7 @@
static inline...
2007 Apr 18
0
[PATCH 13/21] i386 Gdt page isolation
...=========================================================
--- linux-2.6.14-zach-work.orig/include/asm-i386/desc.h 2005-11-04 17:45:31.000000000 -0800
+++ linux-2.6.14-zach-work/include/asm-i386/desc.h 2005-11-05 00:28:06.000000000 -0800
@@ -15,9 +15,6 @@
#include <asm/mmu.h>
extern struct desc_struct cpu_gdt_table[GDT_ENTRIES];
-DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]);
-
-#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table,_cpu))
DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
@@ -29,6 +26,11 @@ struct Xgt_desc_struct {
extern struct Xgt...
2007 Apr 18
0
[PATCH 13/21] i386 Gdt page isolation
...=========================================================
--- linux-2.6.14-zach-work.orig/include/asm-i386/desc.h 2005-11-04 17:45:31.000000000 -0800
+++ linux-2.6.14-zach-work/include/asm-i386/desc.h 2005-11-05 00:28:06.000000000 -0800
@@ -15,9 +15,6 @@
#include <asm/mmu.h>
extern struct desc_struct cpu_gdt_table[GDT_ENTRIES];
-DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]);
-
-#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table,_cpu))
DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
@@ -29,6 +26,11 @@ struct Xgt_desc_struct {
extern struct Xgt...
2007 Apr 18
1
[PATCH 2/3] Gdt_accessor
....14-rc1/include/asm-i386/desc.h
===================================================================
--- linux-2.6.14-rc1.orig/include/asm-i386/desc.h 2005-09-20 14:49:10.000000000 -0700
+++ linux-2.6.14-rc1/include/asm-i386/desc.h 2005-09-20 18:49:07.000000000 -0700
@@ -17,6 +17,8 @@
extern struct desc_struct cpu_gdt_table[GDT_ENTRIES];
DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]);
+#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table,_cpu))
+
DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
struct Xgt_desc_struct {
@@ -60,7 +62,7 @@ __asm__ __volatile__...
2007 Apr 18
1
[PATCH 2/3] Gdt_accessor
....14-rc1/include/asm-i386/desc.h
===================================================================
--- linux-2.6.14-rc1.orig/include/asm-i386/desc.h 2005-09-20 14:49:10.000000000 -0700
+++ linux-2.6.14-rc1/include/asm-i386/desc.h 2005-09-20 18:49:07.000000000 -0700
@@ -17,6 +17,8 @@
extern struct desc_struct cpu_gdt_table[GDT_ENTRIES];
DECLARE_PER_CPU(struct desc_struct, cpu_gdt_table[GDT_ENTRIES]);
+#define get_cpu_gdt_table(_cpu) (per_cpu(cpu_gdt_table,_cpu))
+
DECLARE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
struct Xgt_desc_struct {
@@ -60,7 +62,7 @@ __asm__ __volatile__...
2007 Dec 13
2
[PATCH] avoid ifdefs in desc.h, getting rid of pack_ldt and pack_tss
...---------------------------
1 files changed, 17 insertions(+), 38 deletions(-)
diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h
index 8849666..e302a02 100644
--- a/include/asm-x86/desc.h
+++ b/include/asm-x86/desc.h
@@ -125,21 +125,6 @@ static inline void native_write_gdt_entry(struct desc_struct *gdt, int entry,
memcpy(&gdt[entry], desc, size);
}
-static inline void set_tssldt_descriptor(struct ldttss_desc64 *d,
- unsigned long tss, unsigned type,
- unsigned size)
-{
- memset(d, 0, sizeof(*d));
- d->limit0 = size & 0xFFFF;
- d->base0 = PTR_LOW(tss);
- d->bas...
2007 Dec 13
2
[PATCH] avoid ifdefs in desc.h, getting rid of pack_ldt and pack_tss
...---------------------------
1 files changed, 17 insertions(+), 38 deletions(-)
diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h
index 8849666..e302a02 100644
--- a/include/asm-x86/desc.h
+++ b/include/asm-x86/desc.h
@@ -125,21 +125,6 @@ static inline void native_write_gdt_entry(struct desc_struct *gdt, int entry,
memcpy(&gdt[entry], desc, size);
}
-static inline void set_tssldt_descriptor(struct ldttss_desc64 *d,
- unsigned long tss, unsigned type,
- unsigned size)
-{
- memset(d, 0, sizeof(*d));
- d->limit0 = size & 0xFFFF;
- d->base0 = PTR_LOW(tss);
- d->bas...
2007 Apr 18
1
[PATCH 7/14] i386 / Add some descriptor convenience functions
...000000 -0700
@@ -14,6 +14,28 @@
#include <asm/mmu.h>
+#define desc_empty(desc) \
+ (!((desc)->a + (desc)->b))
+
+#define desc_equal(desc1, desc2) \
+ (((desc1)->a == (desc2)->a) && ((desc1)->b == (desc2)->b))
+
+static inline unsigned long get_desc_base(struct desc_struct *desc)
+{
+ unsigned long base;
+ base = ((desc->a >> 16) & 0x0000ffff) |
+ ((desc->b << 16) & 0x00ff0000) |
+ (desc->b & 0xff000000);
+ return base;
+}
+
+static inline unsigned long get_desc_limit(struct desc_struct *desc)
+{
+ unsigned long limit;
+ limit = (d...
2007 Apr 18
1
[PATCH 7/14] i386 / Add some descriptor convenience functions
...000000 -0700
@@ -14,6 +14,28 @@
#include <asm/mmu.h>
+#define desc_empty(desc) \
+ (!((desc)->a + (desc)->b))
+
+#define desc_equal(desc1, desc2) \
+ (((desc1)->a == (desc2)->a) && ((desc1)->b == (desc2)->b))
+
+static inline unsigned long get_desc_base(struct desc_struct *desc)
+{
+ unsigned long base;
+ base = ((desc->a >> 16) & 0x0000ffff) |
+ ((desc->b << 16) & 0x00ff0000) |
+ (desc->b & 0xff000000);
+ return base;
+}
+
+static inline unsigned long get_desc_limit(struct desc_struct *desc)
+{
+ unsigned long limit;
+ limit = (d...