search for: vm86_info

...=== --- linux-2.6.13.orig/include/asm-i386/processor.h 2005-08-08 15:27:25.000000000 -0700 +++ linux-2.6.13/include/asm-i386/processor.h 2005-08-08 17:57:17.000000000 -0700 @@ -463,6 +463,7 @@ }; #define INIT_THREAD { \ + .tls_array = { [ 0 ... GDT_ENTRY_TLS_ENTRIES-1 ] = { 0,0 } }, \ .vm86_info = NULL, \ .sysenter_cs = __KERNEL_CS, \ .io_bitmap_ptr = NULL, \ Index: linux-2.6.13/arch/i386/kernel/cpu/common.c =================================================================== --- linux-2.6.13.orig/arch/i386/kernel/cpu/common.c 2005-08-08 17:09:57.000000000 -0700 +++ linux-...

...=== --- linux-2.6.13.orig/include/asm-i386/processor.h 2005-08-08 15:27:25.000000000 -0700 +++ linux-2.6.13/include/asm-i386/processor.h 2005-08-08 17:57:17.000000000 -0700 @@ -463,6 +463,7 @@ }; #define INIT_THREAD { \ + .tls_array = { [ 0 ... GDT_ENTRY_TLS_ENTRIES-1 ] = { 0,0 } }, \ .vm86_info = NULL, \ .sysenter_cs = __KERNEL_CS, \ .io_bitmap_ptr = NULL, \ Index: linux-2.6.13/arch/i386/kernel/cpu/common.c =================================================================== --- linux-2.6.13.orig/arch/i386/kernel/cpu/common.c 2005-08-08 17:09:57.000000000 -0700 +++ linux-...

Hi, This series integrate the processor.h header. There are a lot of things that are deeply architectural differences between architectures, but I've done my best to come to a settlement. With this series, I am very close to have selectable paravirt for x86_64, It applies ontop of today's x86 git, mm branch.

Hi, This series integrate the processor.h header. There are a lot of things that are deeply architectural differences between architectures, but I've done my best to come to a settlement. With this series, I am very close to have selectable paravirt for x86_64, It applies ontop of today's x86 git, mm branch.

This patch removes the __init modifier from an extern function declaration in acpi.h. Besides not being strictly needed, it requires the inclusion of linux/init.h, which is usually not even included directly, increasing header mess by a lot. Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> --- include/asm-x86/acpi.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)

This patch removes the __init modifier from an extern function declaration in acpi.h. Besides not being strictly needed, it requires the inclusion of linux/init.h, which is usually not even included directly, increasing header mess by a lot. Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> --- include/asm-x86/acpi.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)

...=== --- linux-2.6.13.orig/include/asm-i386/processor.h 2005-08-09 18:37:48.000000000 -0700 +++ linux-2.6.13/include/asm-i386/processor.h 2005-08-10 20:42:20.000000000 -0700 @@ -366,6 +366,7 @@ }; #define INIT_THREAD { \ + .tls_array = { [ 0 ... GDT_ENTRY_TLS_ENTRIES-1 ] = { 0,0 } }, \ .vm86_info = NULL, \ .sysenter_cs = __KERNEL_CS, \ .io_bitmap_ptr = NULL, \ Index: linux-2.6.13/arch/i386/kernel/cpu/common.c =================================================================== --- linux-2.6.13.orig/arch/i386/kernel/cpu/common.c 2005-08-09 18:37:48.000000000 -0700 +++ linux-...

...=== --- linux-2.6.13.orig/include/asm-i386/processor.h 2005-08-09 18:37:48.000000000 -0700 +++ linux-2.6.13/include/asm-i386/processor.h 2005-08-10 20:42:20.000000000 -0700 @@ -366,6 +366,7 @@ }; #define INIT_THREAD { \ + .tls_array = { [ 0 ... GDT_ENTRY_TLS_ENTRIES-1 ] = { 0,0 } }, \ .vm86_info = NULL, \ .sysenter_cs = __KERNEL_CS, \ .io_bitmap_ptr = NULL, \ Index: linux-2.6.13/arch/i386/kernel/cpu/common.c =================================================================== --- linux-2.6.13.orig/arch/i386/kernel/cpu/common.c 2005-08-09 18:37:48.000000000 -0700 +++ linux-...

The current code simply calls "start_kernel" directly if we're under a hypervisor and no paravirt_ops backend wants us, because paravirt.c registers that as a backend. This was always a vain hope; start_kernel won't get far without setup. It's also impossible for paravirt_ops backends which don't sit in the arch/i386/kernel directory: they can't link before

The current code simply calls "start_kernel" directly if we're under a hypervisor and no paravirt_ops backend wants us, because paravirt.c registers that as a backend. This was always a vain hope; start_kernel won't get far without setup. It's also impossible for paravirt_ops backends which don't sit in the arch/i386/kernel directory: they can't link before

...4 @@ static inline void prefetchw(const void *x) } #define spin_lock_prefetch(x) prefetchw(x) +#ifdef CONFIG_X86_32 +/* + * User space process size: 3GB (default). + */ +#define TASK_SIZE (PAGE_OFFSET) + +#define INIT_THREAD { \ + .sp0 = sizeof(init_stack) + (long)&init_stack, \ + .vm86_info = NULL, \ + .sysenter_cs = __KERNEL_CS, \ + .io_bitmap_ptr = NULL, \ + .fs = __KERNEL_PERCPU, \ +} + +/* + * Note that the .io_bitmap member must be extra-big. This is because + * the CPU will access an additional byte beyond the end of the IO + * permission bitmap. The extra byt...

...4 @@ static inline void prefetchw(const void *x) } #define spin_lock_prefetch(x) prefetchw(x) +#ifdef CONFIG_X86_32 +/* + * User space process size: 3GB (default). + */ +#define TASK_SIZE (PAGE_OFFSET) + +#define INIT_THREAD { \ + .sp0 = sizeof(init_stack) + (long)&init_stack, \ + .vm86_info = NULL, \ + .sysenter_cs = __KERNEL_CS, \ + .io_bitmap_ptr = NULL, \ + .fs = __KERNEL_PERCPU, \ +} + +/* + * Note that the .io_bitmap member must be extra-big. This is because + * the CPU will access an additional byte beyond the end of the IO + * permission bitmap. The extra byt...

...ve_load_sp0(struct tss_struct *tss, struct thread_struct *thread) @@ -828,12 +856,8 @@ static inline void spin_lock_prefetch(const void *x) #define STACK_TOP TASK_SIZE #define STACK_TOP_MAX STACK_TOP -#define INIT_THREAD { \ - .sp0 = sizeof(init_stack) + (long)&init_stack, \ - .vm86_info = NULL, \ - .sysenter_cs = __KERNEL_CS, \ - .io_bitmap_ptr = NULL, \ -} +#ifdef CONFIG_X86_IOPORT +#define INIT_THREAD_IO .io_bitmap_ptr = NULL, /* * Note that the .io_bitmap member must be extra-big. This is because @@ -841,6 +865,19 @@ static inline void spin_lock_prefetc...

...ve_load_sp0(struct tss_struct *tss, struct thread_struct *thread) @@ -832,12 +860,8 @@ static inline void spin_lock_prefetch(const void *x) #define STACK_TOP TASK_SIZE #define STACK_TOP_MAX STACK_TOP -#define INIT_THREAD { \ - .sp0 = sizeof(init_stack) + (long)&init_stack, \ - .vm86_info = NULL, \ - .sysenter_cs = __KERNEL_CS, \ - .io_bitmap_ptr = NULL, \ -} +#ifdef CONFIG_X86_IOPORT +#define INIT_THREAD_IO .io_bitmap_ptr = NULL, /* * Note that the .io_bitmap member must be extra-big. This is because @@ -845,6 +869,19 @@ static inline void spin_lock_prefetc...

...fetch(const void *x) > #define STACK_TOP TASK_SIZE > #define STACK_TOP_MAX STACK_TOP > > -#define INIT_THREAD { \ > - .sp0 = sizeof(init_stack) + (long)&init_stack, \ > - .vm86_info = NULL, \ > - .sysenter_cs = __KERNEL_CS, \ > - .io_bitmap_ptr = NULL, \ > -} > +#ifdef CONFIG_X86_IOPORT > +#define INIT_THREAD_IO .io_bitmap_p...

...fetch(const void *x) > #define STACK_TOP TASK_SIZE > #define STACK_TOP_MAX STACK_TOP > > -#define INIT_THREAD { \ > - .sp0 = sizeof(init_stack) + (long)&init_stack, \ > - .vm86_info = NULL, \ > - .sysenter_cs = __KERNEL_CS, \ > - .io_bitmap_ptr = NULL, \ > -} > +#ifdef CONFIG_X86_IOPORT > +#define INIT_THREAD_IO .io_bitmap_p...

The 32-bit and 64-bit versions of copy_thread have functionally identical handling for copying the I/O bitmap, modulo differences in error handling. Clean up the error paths in both by moving the copy of the I/O bitmap to the end, to eliminate the need to free it if subsequent copy steps fail; move the resulting identical code to a static inline in a common header. Signed-off-by: Josh Triplett

The 32-bit and 64-bit versions of copy_thread have functionally identical handling for copying the I/O bitmap, modulo differences in error handling. Clean up the error paths in both by moving the copy of the I/O bitmap to the end, to eliminate the need to free it if subsequent copy steps fail; move the resulting identical code to a static inline in a common header. Signed-off-by: Josh Triplett

...fetch(const void *x) > #define STACK_TOP TASK_SIZE > #define STACK_TOP_MAX STACK_TOP > > -#define INIT_THREAD { \ > - .sp0 = sizeof(init_stack) + (long)&init_stack, \ > - .vm86_info = NULL, \ > - .sysenter_cs = __KERNEL_CS, \ > - .io_bitmap_ptr = NULL, \ > -} > +#ifdef CONFIG_X86_IOPORT > +#define INIT_THREAD_IO .io_bitmap_p...

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