1 files changed, 0 insertions, 136 deletions
diff --git a/linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/mmu_context.h b/linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/mmu_context.h
deleted file mode 100644
index e0a03bf3a7..0000000000
--- a/linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/mmu_context.h
+++ /dev/null
@@ -1,136 +0,0 @@
-#ifndef __X86_64_MMU_CONTEXT_H
-#define __X86_64_MMU_CONTEXT_H
-
-#include <asm/desc.h>
-#include <asm/atomic.h>
-#include <asm/pgalloc.h>
-#include <asm/page.h>
-#include <asm/pda.h>
-#include <asm/pgtable.h>
-#include <asm/tlbflush.h>
-
-/*
- * possibly do the LDT unload here?
- */
-int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
-void destroy_context(struct mm_struct *mm);
-
-static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
-{
-#if defined(CONFIG_SMP) && !defined(CONFIG_XEN)
-	if (read_pda(mmu_state) == TLBSTATE_OK) 
-		write_pda(mmu_state, TLBSTATE_LAZY);
-#endif
-}
-
-#define prepare_arch_switch(next)	__prepare_arch_switch()
-
-static inline void __prepare_arch_switch(void)
-{
-	/*
-	 * Save away %es, %ds, %fs and %gs. Must happen before reload
-	 * of cr3/ldt (i.e., not in __switch_to).
-	 */
-	__asm__ __volatile__ (
-		"mov %%es,%0 ; mov %%ds,%1 ; mov %%fs,%2 ; mov %%gs,%3"
-		: "=m" (current->thread.es),
-		  "=m" (current->thread.ds),
-		  "=m" (current->thread.fsindex),
-		  "=m" (current->thread.gsindex) );
-
-	if (current->thread.ds)
-		__asm__ __volatile__ ( "movl %0,%%ds" : : "r" (0) );
-
-	if (current->thread.es)
-		__asm__ __volatile__ ( "movl %0,%%es" : : "r" (0) );
-
-	if (current->thread.fsindex) {
-		__asm__ __volatile__ ( "movl %0,%%fs" : : "r" (0) );
-		current->thread.fs = 0;
-	}
-
-	if (current->thread.gsindex) {
-		load_gs_index(0);
-		current->thread.gs = 0;
-	}
-}
-
-extern void mm_pin(struct mm_struct *mm);
-extern void mm_unpin(struct mm_struct *mm);
-void mm_pin_all(void);
-
-static inline void load_cr3(pgd_t *pgd)
-{
-	asm volatile("movq %0,%%cr3" :: "r" (phys_to_machine(__pa(pgd))) :
-		     "memory");
-}
-
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, 
-			     struct task_struct *tsk)
-{
-	unsigned cpu = smp_processor_id();
-	struct mmuext_op _op[3], *op = _op;
-
-	if (likely(prev != next)) {
-		BUG_ON(!xen_feature(XENFEAT_writable_page_tables) &&
-		       !next->context.pinned);
-
-		/* stop flush ipis for the previous mm */
-		cpu_clear(cpu, prev->cpu_vm_mask);
-#if defined(CONFIG_SMP) && !defined(CONFIG_XEN)
-		write_pda(mmu_state, TLBSTATE_OK);
-		write_pda(active_mm, next);
-#endif
-		cpu_set(cpu, next->cpu_vm_mask);
-
-		/* load_cr3(next->pgd) */
-		op->cmd = MMUEXT_NEW_BASEPTR;
-		op->arg1.mfn = pfn_to_mfn(__pa(next->pgd) >> PAGE_SHIFT);
-		op++;
-
-		/* xen_new_user_pt(__pa(__user_pgd(next->pgd))) */
-		op->cmd = MMUEXT_NEW_USER_BASEPTR;
-		op->arg1.mfn = pfn_to_mfn(__pa(__user_pgd(next->pgd)) >> PAGE_SHIFT);
-		op++;
-		
-		if (unlikely(next->context.ldt != prev->context.ldt)) {
-			/* load_LDT_nolock(&next->context, cpu) */
-			op->cmd = MMUEXT_SET_LDT;
-			op->arg1.linear_addr = (unsigned long)next->context.ldt;
-			op->arg2.nr_ents     = next->context.size;
-			op++;
-		}
-
-		BUG_ON(HYPERVISOR_mmuext_op(_op, op-_op, NULL, DOMID_SELF));
-	}
-#if defined(CONFIG_SMP) && !defined(CONFIG_XEN)
-	else {
-		write_pda(mmu_state, TLBSTATE_OK);
-		if (read_pda(active_mm) != next)
-			out_of_line_bug();
-		if (!cpu_test_and_set(cpu, next->cpu_vm_mask)) {
-			/* We were in lazy tlb mode and leave_mm disabled 
-			 * tlb flush IPI delivery. We must reload CR3
-			 * to make sure to use no freed page tables.
-			 */
-                        load_cr3(next->pgd);
-                        xen_new_user_pt(__pa(__user_pgd(next->pgd)));		
-			load_LDT_nolock(&next->context, cpu);
-		}
-	}
-#endif
-}
-
-#define deactivate_mm(tsk,mm)	do { \
-	load_gs_index(0); \
-	asm volatile("movl %0,%%fs"::"r"(0));  \
-} while(0)
-
-static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
-{
-	if (!next->context.pinned)
-		mm_pin(next);
-	switch_mm(prev, next, NULL);
-}
-
-#endif