Displaying 20 results from an estimated 24 matches for "_x86_kernel_process_io_h".
2013 Oct 31
1
[PATCH 1/3] x86: process: Unify 32-bit and 64-bit copy_thread I/O bitmap handling
...deletions(-)
> create mode 100644 arch/x86/kernel/process-io.h
>
> diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
> new file mode 100644
> index 0000000..d884444
> --- /dev/null
> +++ b/arch/x86/kernel/process-io.h
> @@ -0,0 +1,22 @@
> +#ifndef _X86_KERNEL_PROCESS_IO_H
> +#define _X86_KERNEL_PROCESS_IO_H
> +
> +static inline int copy_io_bitmap(struct task_struct *me,
> + struct task_struct *p)
> +{
> + if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) {
> + p->thread.io_bitmap_ptr = kmemdup(me->thread.io_bitmap_ptr,
> +...
2013 Oct 31
1
[PATCH 1/3] x86: process: Unify 32-bit and 64-bit copy_thread I/O bitmap handling
...deletions(-)
> create mode 100644 arch/x86/kernel/process-io.h
>
> diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
> new file mode 100644
> index 0000000..d884444
> --- /dev/null
> +++ b/arch/x86/kernel/process-io.h
> @@ -0,0 +1,22 @@
> +#ifndef _X86_KERNEL_PROCESS_IO_H
> +#define _X86_KERNEL_PROCESS_IO_H
> +
> +static inline int copy_io_bitmap(struct task_struct *me,
> + struct task_struct *p)
> +{
> + if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) {
> + p->thread.io_bitmap_ptr = kmemdup(me->thread.io_bitmap_ptr,
> +...
2013 Oct 22
0
[PATCH 1/3] x86: process: Unify 32-bit and 64-bit copy_thread I/O bitmap handling
...-----
3 files changed, 35 insertions(+), 42 deletions(-)
create mode 100644 arch/x86/kernel/process-io.h
diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
new file mode 100644
index 0000000..d884444
--- /dev/null
+++ b/arch/x86/kernel/process-io.h
@@ -0,0 +1,22 @@
+#ifndef _X86_KERNEL_PROCESS_IO_H
+#define _X86_KERNEL_PROCESS_IO_H
+
+static inline int copy_io_bitmap(struct task_struct *me,
+ struct task_struct *p)
+{
+ if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) {
+ p->thread.io_bitmap_ptr = kmemdup(me->thread.io_bitmap_ptr,
+ IO_BITMAP_BYTES, GFP_KERNEL);
+ if...
2014 Oct 29
2
[PATCH v3 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
On Wed, Oct 29, 2014 at 09:59:25AM -0700, Kees Cook wrote:
> On Wed, Oct 29, 2014 at 9:10 AM, Josh Triplett <josh at joshtriplett.org> wrote:
> > --- a/arch/x86/kernel/process-io.h
> > +++ b/arch/x86/kernel/process-io.h
> > @@ -1,9 +1,17 @@
> > #ifndef _X86_KERNEL_PROCESS_IO_H
> > #define _X86_KERNEL_PROCESS_IO_H
> >
> > +static inline void clear_thread_io_bitmap(struct task_struct *p)
> > +{
> > +#ifdef CONFIG_X86_IOPORT
> > + p->thread.io_bitmap_ptr = NULL;
> > +#endif /* CONFIG_X86_IOPORT */
> > +}
>
> P...
2014 Oct 29
2
[PATCH v3 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
On Wed, Oct 29, 2014 at 09:59:25AM -0700, Kees Cook wrote:
> On Wed, Oct 29, 2014 at 9:10 AM, Josh Triplett <josh at joshtriplett.org> wrote:
> > --- a/arch/x86/kernel/process-io.h
> > +++ b/arch/x86/kernel/process-io.h
> > @@ -1,9 +1,17 @@
> > #ifndef _X86_KERNEL_PROCESS_IO_H
> > #define _X86_KERNEL_PROCESS_IO_H
> >
> > +static inline void clear_thread_io_bitmap(struct task_struct *p)
> > +{
> > +#ifdef CONFIG_X86_IOPORT
> > + p->thread.io_bitmap_ptr = NULL;
> > +#endif /* CONFIG_X86_IOPORT */
> > +}
>
> P...
2014 Mar 11
2
[PATCHv2 1/3] x86: process: Unify 32-bit and 64-bit copy_thread I/O bitmap handling
...-----
3 files changed, 35 insertions(+), 40 deletions(-)
create mode 100644 arch/x86/kernel/process-io.h
diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
new file mode 100644
index 0000000..d884444
--- /dev/null
+++ b/arch/x86/kernel/process-io.h
@@ -0,0 +1,22 @@
+#ifndef _X86_KERNEL_PROCESS_IO_H
+#define _X86_KERNEL_PROCESS_IO_H
+
+static inline int copy_io_bitmap(struct task_struct *me,
+ struct task_struct *p)
+{
+ if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) {
+ p->thread.io_bitmap_ptr = kmemdup(me->thread.io_bitmap_ptr,
+ IO_BITMAP_BYTES, GFP_KERNEL);
+ if...
2014 Mar 11
2
[PATCHv2 1/3] x86: process: Unify 32-bit and 64-bit copy_thread I/O bitmap handling
...-----
3 files changed, 35 insertions(+), 40 deletions(-)
create mode 100644 arch/x86/kernel/process-io.h
diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
new file mode 100644
index 0000000..d884444
--- /dev/null
+++ b/arch/x86/kernel/process-io.h
@@ -0,0 +1,22 @@
+#ifndef _X86_KERNEL_PROCESS_IO_H
+#define _X86_KERNEL_PROCESS_IO_H
+
+static inline int copy_io_bitmap(struct task_struct *me,
+ struct task_struct *p)
+{
+ if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) {
+ p->thread.io_bitmap_ptr = kmemdup(me->thread.io_bitmap_ptr,
+ IO_BITMAP_BYTES, GFP_KERNEL);
+ if...
2014 Nov 02
12
[PATCH v4 00/10] x86: Support compiling out userspace IO (iopl and ioperm)
This patch series makes it possible to compile out the userspace IO system
calls, iopl and ioperm.
The first patch does some 32/64 unification in copy_thread to make subsequent
changes easier. The second patch simplifies the complex calculation of the TSS
segment limit, which also makes it easier to change in the last patch. Patches
3-9 introduce helpers to make it easier to compile out IO.
2014 Nov 02
12
[PATCH v4 00/10] x86: Support compiling out userspace IO (iopl and ioperm)
This patch series makes it possible to compile out the userspace IO system
calls, iopl and ioperm.
The first patch does some 32/64 unification in copy_thread to make subsequent
changes easier. The second patch simplifies the complex calculation of the TSS
segment limit, which also makes it easier to change in the last patch. Patches
3-9 introduce helpers to make it easier to compile out IO.
2014 Oct 29
2
[PATCH v3 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
..._MASK(native_set_iopl_mask)
.io_delay = native_io_delay,
.start_context_switch = paravirt_nop,
diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
index d884444..3e773fa 100644
--- a/arch/x86/kernel/process-io.h
+++ b/arch/x86/kernel/process-io.h
@@ -1,9 +1,17 @@
#ifndef _X86_KERNEL_PROCESS_IO_H
#define _X86_KERNEL_PROCESS_IO_H
+static inline void clear_thread_io_bitmap(struct task_struct *p)
+{
+#ifdef CONFIG_X86_IOPORT
+ p->thread.io_bitmap_ptr = NULL;
+#endif /* CONFIG_X86_IOPORT */
+}
+
static inline int copy_io_bitmap(struct task_struct *me,
struct task_struct *p)
{
+#if...
2014 Oct 29
2
[PATCH v3 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
..._MASK(native_set_iopl_mask)
.io_delay = native_io_delay,
.start_context_switch = paravirt_nop,
diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
index d884444..3e773fa 100644
--- a/arch/x86/kernel/process-io.h
+++ b/arch/x86/kernel/process-io.h
@@ -1,9 +1,17 @@
#ifndef _X86_KERNEL_PROCESS_IO_H
#define _X86_KERNEL_PROCESS_IO_H
+static inline void clear_thread_io_bitmap(struct task_struct *p)
+{
+#ifdef CONFIG_X86_IOPORT
+ p->thread.io_bitmap_ptr = NULL;
+#endif /* CONFIG_X86_IOPORT */
+}
+
static inline int copy_io_bitmap(struct task_struct *me,
struct task_struct *p)
{
+#if...
2013 Oct 22
9
[PATCH 0/3] x86: Support compiling out userspace I/O (iopl and ioperm)
This patch series makes it possible to compile out the iopl and ioperm system
calls, which allow privileged processes to request permission to directly poke
I/O ports from userspace.
Nothing on a modern Linux system uses these calls anymore, and anything new
should be using /dev/port instead, or better yet writing a driver.
Copying the bloat-o-meter stats from the final patch:
32-bit
2013 Oct 22
9
[PATCH 0/3] x86: Support compiling out userspace I/O (iopl and ioperm)
This patch series makes it possible to compile out the iopl and ioperm system
calls, which allow privileged processes to request permission to directly poke
I/O ports from userspace.
Nothing on a modern Linux system uses these calls anymore, and anything new
should be using /dev/port instead, or better yet writing a driver.
Copying the bloat-o-meter stats from the final patch:
32-bit
2014 Oct 29
4
[PATCH v3 1/3] x86: process: Unify 32-bit and 64-bit copy_thread I/O bitmap handling
...-----
3 files changed, 35 insertions(+), 40 deletions(-)
create mode 100644 arch/x86/kernel/process-io.h
diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
new file mode 100644
index 0000000..d884444
--- /dev/null
+++ b/arch/x86/kernel/process-io.h
@@ -0,0 +1,22 @@
+#ifndef _X86_KERNEL_PROCESS_IO_H
+#define _X86_KERNEL_PROCESS_IO_H
+
+static inline int copy_io_bitmap(struct task_struct *me,
+ struct task_struct *p)
+{
+ if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) {
+ p->thread.io_bitmap_ptr = kmemdup(me->thread.io_bitmap_ptr,
+ IO_BITMAP_BYTES, GFP_KERNEL);
+ if...
2014 Oct 29
4
[PATCH v3 1/3] x86: process: Unify 32-bit and 64-bit copy_thread I/O bitmap handling
...-----
3 files changed, 35 insertions(+), 40 deletions(-)
create mode 100644 arch/x86/kernel/process-io.h
diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
new file mode 100644
index 0000000..d884444
--- /dev/null
+++ b/arch/x86/kernel/process-io.h
@@ -0,0 +1,22 @@
+#ifndef _X86_KERNEL_PROCESS_IO_H
+#define _X86_KERNEL_PROCESS_IO_H
+
+static inline int copy_io_bitmap(struct task_struct *me,
+ struct task_struct *p)
+{
+ if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) {
+ p->thread.io_bitmap_ptr = kmemdup(me->thread.io_bitmap_ptr,
+ IO_BITMAP_BYTES, GFP_KERNEL);
+ if...
2013 Oct 31
1
[PATCH 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
...= native_io_delay,
>
> .start_context_switch = paravirt_nop,
> diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
> index d884444..3e773fa 100644
> --- a/arch/x86/kernel/process-io.h
> +++ b/arch/x86/kernel/process-io.h
> @@ -1,9 +1,17 @@
> #ifndef _X86_KERNEL_PROCESS_IO_H
> #define _X86_KERNEL_PROCESS_IO_H
>
> +static inline void clear_thread_io_bitmap(struct task_struct *p)
> +{
> +#ifdef CONFIG_X86_IOPORT
> + p->thread.io_bitmap_ptr = NULL;
> +#endif /* CONFIG_X86_IOPORT */
> +}
> +
This is thought of as ugly... Instead, do someth...
2013 Oct 31
1
[PATCH 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
...= native_io_delay,
>
> .start_context_switch = paravirt_nop,
> diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
> index d884444..3e773fa 100644
> --- a/arch/x86/kernel/process-io.h
> +++ b/arch/x86/kernel/process-io.h
> @@ -1,9 +1,17 @@
> #ifndef _X86_KERNEL_PROCESS_IO_H
> #define _X86_KERNEL_PROCESS_IO_H
>
> +static inline void clear_thread_io_bitmap(struct task_struct *p)
> +{
> +#ifdef CONFIG_X86_IOPORT
> + p->thread.io_bitmap_ptr = NULL;
> +#endif /* CONFIG_X86_IOPORT */
> +}
> +
This is thought of as ugly... Instead, do someth...
2013 Oct 22
0
[PATCH 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
...dif /* CONFIG_X86_IOPORT */
.io_delay = native_io_delay,
.start_context_switch = paravirt_nop,
diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
index d884444..3e773fa 100644
--- a/arch/x86/kernel/process-io.h
+++ b/arch/x86/kernel/process-io.h
@@ -1,9 +1,17 @@
#ifndef _X86_KERNEL_PROCESS_IO_H
#define _X86_KERNEL_PROCESS_IO_H
+static inline void clear_thread_io_bitmap(struct task_struct *p)
+{
+#ifdef CONFIG_X86_IOPORT
+ p->thread.io_bitmap_ptr = NULL;
+#endif /* CONFIG_X86_IOPORT */
+}
+
static inline int copy_io_bitmap(struct task_struct *me,
struct task_struct *p)
{
+#if...
2014 Mar 11
0
[PATCHv2 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
...dif /* CONFIG_X86_IOPORT */
.io_delay = native_io_delay,
.start_context_switch = paravirt_nop,
diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
index d884444..3e773fa 100644
--- a/arch/x86/kernel/process-io.h
+++ b/arch/x86/kernel/process-io.h
@@ -1,9 +1,17 @@
#ifndef _X86_KERNEL_PROCESS_IO_H
#define _X86_KERNEL_PROCESS_IO_H
+static inline void clear_thread_io_bitmap(struct task_struct *p)
+{
+#ifdef CONFIG_X86_IOPORT
+ p->thread.io_bitmap_ptr = NULL;
+#endif /* CONFIG_X86_IOPORT */
+}
+
static inline int copy_io_bitmap(struct task_struct *me,
struct task_struct *p)
{
+#if...
2013 Oct 26
1
[PATCH 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
...tive_io_delay,
>
> .start_context_switch = paravirt_nop,
> diff --git a/arch/x86/kernel/process-io.h b/arch/x86/kernel/process-io.h
> index d884444..3e773fa 100644
> --- a/arch/x86/kernel/process-io.h
> +++ b/arch/x86/kernel/process-io.h
> @@ -1,9 +1,17 @@
> #ifndef _X86_KERNEL_PROCESS_IO_H
> #define _X86_KERNEL_PROCESS_IO_H
>
> +static inline void clear_thread_io_bitmap(struct task_struct *p)
> +{
> +#ifdef CONFIG_X86_IOPORT
> + p->thread.io_bitmap_ptr = NULL;
> +#endif /* CONFIG_X86_IOPORT */
> +}
> +
> static inline int copy_io_bitmap(struct...