Displaying 19 results from an estimated 19 matches for "instruction_pointer".
2007 Apr 18
2
[patch 3/8] Allow a kernel to not be in ring 0.
...urn (regs->xcs & SEGMENT_RPL_MASK) == USER_RPL;
}
static inline int user_mode_vm(struct pt_regs *regs)
{
- return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0;
+ return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL;
}
#define instruction_pointer(regs) ((regs)->eip)
#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
--- 2.6.18-rc3-32.orig/include/asm-i386/segment.h
+++ 2.6.18-rc3-32/include/asm-i386/segment.h
@@ -83,6 +83,11 @@
#define GDT_SIZE (GDT_ENTRIES * 8)
+/* Matches __KERNEL_CS and __USER_CS (they must be 2 en...
2007 Apr 18
2
[patch 3/8] Allow a kernel to not be in ring 0.
...urn (regs->xcs & SEGMENT_RPL_MASK) == USER_RPL;
}
static inline int user_mode_vm(struct pt_regs *regs)
{
- return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0;
+ return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL;
}
#define instruction_pointer(regs) ((regs)->eip)
#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
--- 2.6.18-rc3-32.orig/include/asm-i386/segment.h
+++ 2.6.18-rc3-32/include/asm-i386/segment.h
@@ -83,6 +83,11 @@
#define GDT_SIZE (GDT_ENTRIES * 8)
+/* Matches __KERNEL_CS and __USER_CS (they must be 2 en...
2007 Apr 18
1
[PATCH] Slight cleanups for x86 ring macros (against rc3-mm2)
...mp; SEGMENT_RPL_MASK) == USER_RPL;
}
static inline int user_mode_vm(struct pt_regs *regs)
{
- return (((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= 3);
+ return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL;
}
#define instruction_pointer(regs) ((regs)->eip)
extern unsigned long profile_pc(struct pt_regs *regs);
diff -r d8064f9b5964 include/asm-i386/segment.h
--- a/include/asm-i386/segment.h Mon Aug 07 13:30:17 2006 +1000
+++ b/include/asm-i386/segment.h Mon Aug 07 14:32:11 2006 +1000
@@ -83,10 +83,9 @@
#define GDT_SIZE (GDT_...
2007 Apr 18
1
[PATCH] Slight cleanups for x86 ring macros (against rc3-mm2)
...mp; SEGMENT_RPL_MASK) == USER_RPL;
}
static inline int user_mode_vm(struct pt_regs *regs)
{
- return (((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= 3);
+ return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL;
}
#define instruction_pointer(regs) ((regs)->eip)
extern unsigned long profile_pc(struct pt_regs *regs);
diff -r d8064f9b5964 include/asm-i386/segment.h
--- a/include/asm-i386/segment.h Mon Aug 07 13:30:17 2006 +1000
+++ b/include/asm-i386/segment.h Mon Aug 07 14:32:11 2006 +1000
@@ -83,10 +83,9 @@
#define GDT_SIZE (GDT_...
2007 Apr 18
0
[RFC, PATCH 11/24] i386 Vmi segment changes
...!= 0;
+ return (regs->xcs & SEGMENT_RPL_MASK) == 3;
}
static inline int user_mode_vm(struct pt_regs *regs)
{
- return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0;
+ return (((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= 3);
}
#define instruction_pointer(regs) ((regs)->eip)
#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
Index: linux-2.6.16-rc5/include/asm-i386/segment.h
===================================================================
--- linux-2.6.16-rc5.orig/include/asm-i386/segment.h 2006-03-08 16:58:49.000000000 -0800
++...
2007 Apr 18
0
[RFC, PATCH 11/24] i386 Vmi segment changes
...!= 0;
+ return (regs->xcs & SEGMENT_RPL_MASK) == 3;
}
static inline int user_mode_vm(struct pt_regs *regs)
{
- return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0;
+ return (((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= 3);
}
#define instruction_pointer(regs) ((regs)->eip)
#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
Index: linux-2.6.16-rc5/include/asm-i386/segment.h
===================================================================
--- linux-2.6.16-rc5.orig/include/asm-i386/segment.h 2006-03-08 16:58:49.000000000 -0800
++...
2007 Apr 18
2
[PATCH 19/21] i386 Kprobes semaphore fix
..._)
#include <asm/vm86.h>
+#include <asm/mmu.h>
+#include <asm/uaccess.h>
struct task_struct;
extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code);
@@ -82,6 +84,45 @@ extern unsigned long profile_pc(struct p
#else
#define profile_pc(regs) instruction_pointer(regs)
#endif
-#endif /* __KERNEL__ */
+
+/*
+ * Return EIP plus the CS segment base. The segment limit is also
+ * adjusted, clamped to the kernel/user address space (whichever is
+ * appropriate), and returned in *eip_limit.
+ *
+ * The segment is checked, because it might have been changed by a...
2007 Apr 18
2
[PATCH 19/21] i386 Kprobes semaphore fix
..._)
#include <asm/vm86.h>
+#include <asm/mmu.h>
+#include <asm/uaccess.h>
struct task_struct;
extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code);
@@ -82,6 +84,45 @@ extern unsigned long profile_pc(struct p
#else
#define profile_pc(regs) instruction_pointer(regs)
#endif
-#endif /* __KERNEL__ */
+
+/*
+ * Return EIP plus the CS segment base. The segment limit is also
+ * adjusted, clamped to the kernel/user address space (whichever is
+ * appropriate), and returned in *eip_limit.
+ *
+ * The segment is checked, because it might have been changed by a...
2007 Apr 18
1
[RFC] [PATCH] Split host arch headers for UML's benefit
...#ifndef __ASSEMBLY__
#include "linux/config.h"
-
-#define pt_regs pt_regs_subarch
-#define show_regs show_regs_subarch
-#define send_sigtrap send_sigtrap_subarch
-
-#include "asm/arch/ptrace.h"
-
-#undef pt_regs
-#undef show_regs
-#undef send_sigtrap
-#undef user_mode
-#undef instruction_pointer
-
+#include "asm/arch/ptrace-abi.h"
#include "sysdep/ptrace.h"
struct pt_regs {
Index: linux-2.6.13-rc5-mm1-abi/include/asm-um/system-generic.h
===================================================================
--- linux-2.6.13-rc5-mm1-abi.orig/include/asm-um/system-generic...
2007 Apr 18
1
[RFC] [PATCH] Split host arch headers for UML's benefit
...#ifndef __ASSEMBLY__
#include "linux/config.h"
-
-#define pt_regs pt_regs_subarch
-#define show_regs show_regs_subarch
-#define send_sigtrap send_sigtrap_subarch
-
-#include "asm/arch/ptrace.h"
-
-#undef pt_regs
-#undef show_regs
-#undef send_sigtrap
-#undef user_mode
-#undef instruction_pointer
-
+#include "asm/arch/ptrace-abi.h"
#include "sysdep/ptrace.h"
struct pt_regs {
Index: linux-2.6.13-rc5-mm1-abi/include/asm-um/system-generic.h
===================================================================
--- linux-2.6.13-rc5-mm1-abi.orig/include/asm-um/system-generic...
2007 Apr 18
8
[patch 0/8] Basic infrastructure patches for a paravirtualized kernel
Hi Andrew,
This series of patches lays the basic ground work for the
paravirtualized kernel patches coming later on. I think this lot is
ready for the rough-and-tumble world of the -mm tree.
The main change from the last posting is that all the page-table
related patches have been moved out, and will be posted separately.
Also, the off-by-one in reserving the top of address space has been
2007 Apr 18
8
[patch 0/8] Basic infrastructure patches for a paravirtualized kernel
Hi Andrew,
This series of patches lays the basic ground work for the
paravirtualized kernel patches coming later on. I think this lot is
ready for the rough-and-tumble world of the -mm tree.
The main change from the last posting is that all the page-table
related patches have been moved out, and will be posted separately.
Also, the off-by-one in reserving the top of address space has been
2007 Apr 18
2
[PATCH 1/3] Paravirtualization: Kernel Ring Cleanups
...!= 0;
+ return (regs->xcs & SEGMENT_RPL_MASK) == 3;
}
static inline int user_mode_vm(struct pt_regs *regs)
{
- return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0;
+ return (((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= 3);
}
#define instruction_pointer(regs) ((regs)->eip)
#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
diff -urpN --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.6.17-rc2-git7/include/asm-i386/segment.h tmp/include/asm-i386/segment.h
--- linux-2.6.17-rc2-git7/include/...
2007 Apr 18
2
[PATCH 1/3] Paravirtualization: Kernel Ring Cleanups
...!= 0;
+ return (regs->xcs & SEGMENT_RPL_MASK) == 3;
}
static inline int user_mode_vm(struct pt_regs *regs)
{
- return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0;
+ return (((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= 3);
}
#define instruction_pointer(regs) ((regs)->eip)
#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
diff -urpN --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal linux-2.6.17-rc2-git7/include/asm-i386/segment.h tmp/include/asm-i386/segment.h
--- linux-2.6.17-rc2-git7/include/...
2007 Apr 18
15
[PATCH 0 of 13] Basic infrastructure patches for a paravirtualized kernel
[ REPOST: Apologies to anyone who has seen this before. It
didn't make it onto any of the lists it should have. -J ]
Hi Andrew,
This series of patches lays the basic ground work for the
paravirtualized kernel patches coming later on. I think this lot is
ready for the rough-and-tumble world of the -mm tree.
For the most part, these patches do nothing or very little. The
patches should
2007 Apr 18
15
[PATCH 0 of 13] Basic infrastructure patches for a paravirtualized kernel
[ REPOST: Apologies to anyone who has seen this before. It
didn't make it onto any of the lists it should have. -J ]
Hi Andrew,
This series of patches lays the basic ground work for the
paravirtualized kernel patches coming later on. I think this lot is
ready for the rough-and-tumble world of the -mm tree.
For the most part, these patches do nothing or very little. The
patches should
2007 Apr 18
43
[RFC PATCH 00/35] Xen i386 paravirtualization support
Unlike full virtualization in which the virtual machine provides
the same platform interface as running natively on the hardware,
paravirtualization requires modification to the guest operating system
to work with the platform interface provided by the hypervisor.
Xen was designed with performance in mind. Calls to the hypervisor
are minimized, batched if necessary, and non-critical codepaths
2007 Apr 18
43
[RFC PATCH 00/35] Xen i386 paravirtualization support
Unlike full virtualization in which the virtual machine provides
the same platform interface as running natively on the hardware,
paravirtualization requires modification to the guest operating system
to work with the platform interface provided by the hypervisor.
Xen was designed with performance in mind. Calls to the hypervisor
are minimized, batched if necessary, and non-critical codepaths
2007 Apr 18
33
[RFC PATCH 00/33] Xen i386 paravirtualization support
Unlike full virtualization in which the virtual machine provides
the same platform interface as running natively on the hardware,
paravirtualization requires modification to the guest operating system
to work with the platform interface provided by the hypervisor.
Xen was designed with performance in mind. Calls to the hypervisor
are minimized, batched if necessary, and non-critical codepaths