search for: cpu_vm_mask

...umask_t mask; + unsigned cpu; + if (current->active_mm == mm) { if (current->mm == mm) load_cr3(swapper_pg_dir); else leave_mm(smp_processor_id()); + arch_flush_lazy_cpu_mode(); + } + + /* Get the "official" set of cpus referring to our pagetable. */ + mask = mm->cpu_vm_mask; + + /* It's possible that a vcpu may have a stale reference to our + cr3, because its in lazy mode, and it hasn't yet flushed + its set of pending hypercalls yet. In this case, we can + look at its actual current cr3 value, and force it to flush + if needed. */ + for_each_onli...

...umask_t mask; + unsigned cpu; + if (current->active_mm == mm) { if (current->mm == mm) load_cr3(swapper_pg_dir); else leave_mm(smp_processor_id()); + arch_flush_lazy_cpu_mode(); + } + + /* Get the "official" set of cpus referring to our pagetable. */ + mask = mm->cpu_vm_mask; + + /* It's possible that a vcpu may have a stale reference to our + cr3, because its in lazy mode, and it hasn't yet flushed + its set of pending hypercalls yet. In this case, we can + look at its actual current cr3 value, and force it to flush + if needed. */ + for_each_onli...

...c void flush_ldt(void *null) @@ -58,16 +59,22 @@ #ifdef CONFIG_SMP cpumask_t mask; preempt_disable(); + make_pages_readonly(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / + PAGE_SIZE); load_LDT(pc); mask = cpumask_of_cpu(smp_processor_id()); if (!cpus_equal(current->mm->cpu_vm_mask, mask)) smp_call_function(flush_ldt, NULL, 1, 1); preempt_enable(); #else + make_pages_readonly(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / + PAGE_SIZE); load_LDT(pc); #endif } if (oldsize) { + make_pages_writable(oldldt, (oldsize * LDT_ENTRY_SIZE) / + PAGE_SIZE);...

...c void flush_ldt(void *null) @@ -58,16 +59,22 @@ #ifdef CONFIG_SMP cpumask_t mask; preempt_disable(); + make_pages_readonly(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / + PAGE_SIZE); load_LDT(pc); mask = cpumask_of_cpu(smp_processor_id()); if (!cpus_equal(current->mm->cpu_vm_mask, mask)) smp_call_function(flush_ldt, NULL, 1, 1); preempt_enable(); #else + make_pages_readonly(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / + PAGE_SIZE); load_LDT(pc); #endif } if (oldsize) { + make_pages_writable(oldldt, (oldsize * LDT_ENTRY_SIZE) / + PAGE_SIZE);...

...warning */ static void flush_ldt(void *null) @@ -59,16 +60,19 @@ #ifdef CONFIG_SMP cpumask_t mask; preempt_disable(); + SetPagesLDT(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / PAGE_SIZE); load_LDT(pc); mask = cpumask_of_cpu(smp_processor_id()); if (!cpus_equal(current->mm->cpu_vm_mask, mask)) smp_call_function(flush_ldt, NULL, 1, 1); preempt_enable(); #else + SetPagesLDT(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / PAGE_SIZE); load_LDT(pc); #endif } if (oldsize) { + ClearPagesLDT(oldldt, (oldsize * LDT_ENTRY_SIZE) / PAGE_SIZE); if (oldsize*LDT_ENTRY_SIZE &gt...

...warning */ static void flush_ldt(void *null) @@ -59,16 +60,19 @@ #ifdef CONFIG_SMP cpumask_t mask; preempt_disable(); + SetPagesLDT(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / PAGE_SIZE); load_LDT(pc); mask = cpumask_of_cpu(smp_processor_id()); if (!cpus_equal(current->mm->cpu_vm_mask, mask)) smp_call_function(flush_ldt, NULL, 1, 1); preempt_enable(); #else + SetPagesLDT(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / PAGE_SIZE); load_LDT(pc); #endif } if (oldsize) { + ClearPagesLDT(oldldt, (oldsize * LDT_ENTRY_SIZE) / PAGE_SIZE); if (oldsize*LDT_ENTRY_SIZE &gt...

...c void flush_ldt(void *null) @@ -58,16 +59,22 @@ #ifdef CONFIG_SMP cpumask_t mask; preempt_disable(); + make_pages_readonly(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / + PAGE_SIZE); load_LDT(pc); mask = cpumask_of_cpu(smp_processor_id()); if (!cpus_equal(current->mm->cpu_vm_mask, mask)) smp_call_function(flush_ldt, NULL, 1, 1); preempt_enable(); #else + make_pages_readonly(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / + PAGE_SIZE); load_LDT(pc); #endif } if (oldsize) { + make_pages_writable(oldldt, (oldsize * LDT_ENTRY_SIZE) / + PAGE_SIZE);...

...c void flush_ldt(void *null) @@ -58,16 +59,22 @@ #ifdef CONFIG_SMP cpumask_t mask; preempt_disable(); + make_pages_readonly(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / + PAGE_SIZE); load_LDT(pc); mask = cpumask_of_cpu(smp_processor_id()); if (!cpus_equal(current->mm->cpu_vm_mask, mask)) smp_call_function(flush_ldt, NULL, 1, 1); preempt_enable(); #else + make_pages_readonly(pc->ldt, (pc->size * LDT_ENTRY_SIZE) / + PAGE_SIZE); load_LDT(pc); #endif } if (oldsize) { + make_pages_writable(oldldt, (oldsize * LDT_ENTRY_SIZE) / + PAGE_SIZE);...

...2.6.13/include/asm-i386/mmu.h > =================================================================== > --- linux-2.6.13.orig/include/asm-i386/mmu.h 2005-08-15 11:16:59.000000000 -0700 > +++ linux-2.6.13/include/asm-i386/mmu.h 2005-08-15 11:19:49.000000000 -0700 > @@ -9,9 +9,9 @@ > * cpu_vm_mask is used to optimize ldt flushing. > */ > typedef struct { > - int size; > struct semaphore sem; > - void *ldt; > + struct desc_struct *ldt; > + int ldt_pages; > } mm_context_t; > > #endif > Index: linux-2.6.13/include/asm-i386/desc.h > =================...

...2.6.13/include/asm-i386/mmu.h > =================================================================== > --- linux-2.6.13.orig/include/asm-i386/mmu.h 2005-08-15 11:16:59.000000000 -0700 > +++ linux-2.6.13/include/asm-i386/mmu.h 2005-08-15 11:19:49.000000000 -0700 > @@ -9,9 +9,9 @@ > * cpu_vm_mask is used to optimize ldt flushing. > */ > typedef struct { > - int size; > struct semaphore sem; > - void *ldt; > + struct desc_struct *ldt; > + int ldt_pages; > } mm_context_t; > > #endif > Index: linux-2.6.13/include/asm-i386/desc.h > =================...

This is my current set of updates to Xen for 2.6.24. This is largely a bugfix set, and a couple of them are also relevent to 2.6.23. These are in the pre-x86 merge form; I'll update them once the merge goes into git. Quick overview: - remove some dead code in arch/i386/mm/init.c - clean up some duplicate includes - when sending an IPI, yield the vcpu if the destination doesn't have

This is my current set of updates to Xen for 2.6.24. This is largely a bugfix set, and a couple of them are also relevent to 2.6.23. These are in the pre-x86 merge form; I'll update them once the merge goes into git. Quick overview: - remove some dead code in arch/i386/mm/init.c - clean up some duplicate includes - when sending an IPI, yield the vcpu if the destination doesn't have

This is my current set of updates to Xen for 2.6.24. This is largely a bugfix set, and a couple of them are also relevent to 2.6.23. These are in the pre-x86 merge form; I'll update them once the merge goes into git. Quick overview: - remove some dead code in arch/i386/mm/init.c - clean up some duplicate includes - when sending an IPI, yield the vcpu if the destination doesn't have

Seems to work OK for native and Xen. I had to play a bit with the paravirt-sched-clock patch to deal with the VMI changes. Zach, can you check that it still works? Thanks, J

Seems to work OK for native and Xen. I had to play a bit with the paravirt-sched-clock patch to deal with the VMI changes. Zach, can you check that it still works? Thanks, J

...4-zach-work/include/asm-i386/mmu.h =================================================================== --- linux-2.6.14-zach-work.orig/include/asm-i386/mmu.h 2005-11-05 00:28:03.000000000 -0800 +++ linux-2.6.14-zach-work/include/asm-i386/mmu.h 2005-11-05 01:34:31.000000000 -0800 @@ -9,9 +9,9 @@ * cpu_vm_mask is used to optimize ldt flushing. */ typedef struct { - int size; struct semaphore sem; - void *ldt; + struct desc_struct *ldt; + int ldt_pages; } mm_context_t; #endif

...4-zach-work/include/asm-i386/mmu.h =================================================================== --- linux-2.6.14-zach-work.orig/include/asm-i386/mmu.h 2005-11-05 00:28:03.000000000 -0800 +++ linux-2.6.14-zach-work/include/asm-i386/mmu.h 2005-11-05 01:34:31.000000000 -0800 @@ -9,9 +9,9 @@ * cpu_vm_mask is used to optimize ldt flushing. */ typedef struct { - int size; struct semaphore sem; - void *ldt; + struct desc_struct *ldt; + int ldt_pages; } mm_context_t; #endif

...INVAL; + tsk->mm->context.pgstes = 1; /* dirty little tricks .. */ + mm = dup_mm(tsk); + tsk->mm->context.pgstes = 0; + if (!mm) + return -ENOMEM; + mmput(tsk->mm); + tsk->mm = tsk->active_mm = mm; + preempt_disable(); + update_mm(mm, tsk); + cpu_set(smp_processor_id(), mm->cpu_vm_mask); + preempt_enable(); + return 0; +} +EXPORT_SYMBOL_GPL(s390_enable_sie); Index: kvm/include/asm-s390/mmu.h =================================================================== --- kvm.orig/include/asm-s390/mmu.h +++ kvm/include/asm-s390/mmu.h @@ -7,6 +7,7 @@ typedef struct { unsigned long asce_bi...

...atic void -flush_tlb_others (unsigned long cpumask, struct mm_struct *mm, - unsigned long va) +voyager_flush_tlb_others (unsigned long cpumask, struct mm_struct *mm, + unsigned long va) { int stuck = 50000; @@ -937,7 +936,7 @@ flush_tlb_current_task(void) cpu_mask = cpus_addr(mm->cpu_vm_mask)[0] & ~(1 << smp_processor_id()); local_flush_tlb(); if (cpu_mask) - flush_tlb_others(cpu_mask, mm, FLUSH_ALL); + voyager_flush_tlb_others(cpu_mask, mm, FLUSH_ALL); preempt_enable(); } @@ -959,7 +958,7 @@ flush_tlb_mm (struct mm_struct * mm) leave_mm(smp_processor_id());...

...atic void -flush_tlb_others (unsigned long cpumask, struct mm_struct *mm, - unsigned long va) +voyager_flush_tlb_others (unsigned long cpumask, struct mm_struct *mm, + unsigned long va) { int stuck = 50000; @@ -937,7 +936,7 @@ flush_tlb_current_task(void) cpu_mask = cpus_addr(mm->cpu_vm_mask)[0] & ~(1 << smp_processor_id()); local_flush_tlb(); if (cpu_mask) - flush_tlb_others(cpu_mask, mm, FLUSH_ALL); + voyager_flush_tlb_others(cpu_mask, mm, FLUSH_ALL); preempt_enable(); } @@ -959,7 +958,7 @@ flush_tlb_mm (struct mm_struct * mm) leave_mm(smp_processor_id());...