search for: get_segment_

...1/arch/i386/mm/fault.c =================================================================== --- linux-2.6.14-rc1.orig/arch/i386/mm/fault.c 2005-09-20 14:49:10.000000000 -0700 +++ linux-2.6.14-rc1/arch/i386/mm/fault.c 2005-09-20 14:49:50.000000000 -0700 @@ -108,7 +108,7 @@ static inline unsigned long get_segment_ desc = (void *)desc + (seg & ~7); } else { /* Must disable preemption while reading the GDT. */ - desc = (u32 *)&per_cpu(cpu_gdt_table, get_cpu()); + desc = (u32 *)get_cpu_gdt_table(get_cpu()); desc = (void *)desc + (seg & ~7); }

...1/arch/i386/mm/fault.c =================================================================== --- linux-2.6.14-rc1.orig/arch/i386/mm/fault.c 2005-09-20 14:49:10.000000000 -0700 +++ linux-2.6.14-rc1/arch/i386/mm/fault.c 2005-09-20 14:49:50.000000000 -0700 @@ -108,7 +108,7 @@ static inline unsigned long get_segment_ desc = (void *)desc + (seg & ~7); } else { /* Must disable preemption while reading the GDT. */ - desc = (u32 *)&per_cpu(cpu_gdt_table, get_cpu()); + desc = (u32 *)get_cpu_gdt_table(get_cpu()); desc = (void *)desc + (seg & ~7); }

...mm/fault.c =================================================================== --- linux-2.6.14-zach-work.orig/arch/i386/mm/fault.c 2005-11-04 16:54:41.000000000 -0800 +++ linux-2.6.14-zach-work/arch/i386/mm/fault.c 2005-11-05 00:28:04.000000000 -0800 @@ -113,7 +113,7 @@ static inline unsigned long get_segment_ } /* Decode the code segment base from the descriptor */ - base = get_desc_base((unsigned long *)desc); + base = get_desc_base(desc); if (seg & (1<<2)) { up(&current->mm->context.sem); Index: linux-2.6.14-zach-work/drivers/pnp/pnpbios/bioscalls.c ==================...

...mm/fault.c =================================================================== --- linux-2.6.14-zach-work.orig/arch/i386/mm/fault.c 2005-11-04 16:54:41.000000000 -0800 +++ linux-2.6.14-zach-work/arch/i386/mm/fault.c 2005-11-05 00:28:04.000000000 -0800 @@ -113,7 +113,7 @@ static inline unsigned long get_segment_ } /* Decode the code segment base from the descriptor */ - base = get_desc_base((unsigned long *)desc); + base = get_desc_base(desc); if (seg & (1<<2)) { up(&current->mm->context.sem); Index: linux-2.6.14-zach-work/drivers/pnp/pnpbios/bioscalls.c ==================...

...mm/fault.c +++ 2.6.18-rc3-32/arch/i386/mm/fault.c @@ -27,6 +27,7 @@ #include <asm/uaccess.h> #include <asm/desc.h> #include <asm/kdebug.h> +#include <asm/segment.h> extern void die(const char *,struct pt_regs *,long); @@ -119,10 +120,10 @@ static inline unsigned long get_segment_ } /* The standard kernel/user address space limit. */ - *eip_limit = (seg & 3) ? USER_DS.seg : KERNEL_DS.seg; + *eip_limit = user_mode(regs) ? USER_DS.seg : KERNEL_DS.seg; /* By far the most common cases. */ - if (likely(seg == __USER_CS || seg == __KERNEL_CS)) + if (likely(SEGMENT_I...

...mm/fault.c +++ 2.6.18-rc3-32/arch/i386/mm/fault.c @@ -27,6 +27,7 @@ #include <asm/uaccess.h> #include <asm/desc.h> #include <asm/kdebug.h> +#include <asm/segment.h> extern void die(const char *,struct pt_regs *,long); @@ -119,10 +120,10 @@ static inline unsigned long get_segment_ } /* The standard kernel/user address space limit. */ - *eip_limit = (seg & 3) ? USER_DS.seg : KERNEL_DS.seg; + *eip_limit = user_mode(regs) ? USER_DS.seg : KERNEL_DS.seg; /* By far the most common cases. */ - if (likely(seg == __USER_CS || seg == __KERNEL_CS)) + if (likely(SEGMENT_I...

...here. - * - * If CS is no longer a valid code segment, or if EIP is beyond the - * limit, or if it is a kernel address when CS is not a kernel segment, - * then the returned value will be greater than *eip_limit. - * - * This is slow, but is very rarely executed. - */ -static inline unsigned long get_segment_eip(struct pt_regs *regs, - unsigned long *eip_limit) -{ - unsigned long eip = regs->eip; - unsigned seg = regs->xcs & 0xffff; - u32 seg_ar, seg_limit, base, *desc; - - /* The standard kernel/user address space limit. */ - *eip_limit = (seg & 3) ? USER_DS.seg : KERNEL_DS.seg; -...

...here. - * - * If CS is no longer a valid code segment, or if EIP is beyond the - * limit, or if it is a kernel address when CS is not a kernel segment, - * then the returned value will be greater than *eip_limit. - * - * This is slow, but is very rarely executed. - */ -static inline unsigned long get_segment_eip(struct pt_regs *regs, - unsigned long *eip_limit) -{ - unsigned long eip = regs->eip; - unsigned seg = regs->xcs & 0xffff; - u32 seg_ar, seg_limit, base, *desc; - - /* The standard kernel/user address space limit. */ - *eip_limit = (seg & 3) ? USER_DS.seg : KERNEL_DS.seg; -...

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

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

[ 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

[ 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

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 this patch ready for inclusion.

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 this patch ready for inclusion.

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

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

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