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Diffstat (limited to 'arch/x86/xen/mmu.c')
-rw-r--r--arch/x86/xen/mmu.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 636ef4caa52d..773d68d3e912 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -154,13 +154,13 @@ void xen_setup_mfn_list_list(void)
154{ 154{
155 unsigned pfn, idx; 155 unsigned pfn, idx;
156 156
157 for(pfn = 0; pfn < MAX_DOMAIN_PAGES; pfn += P2M_ENTRIES_PER_PAGE) { 157 for (pfn = 0; pfn < MAX_DOMAIN_PAGES; pfn += P2M_ENTRIES_PER_PAGE) {
158 unsigned topidx = p2m_top_index(pfn); 158 unsigned topidx = p2m_top_index(pfn);
159 159
160 p2m_top_mfn[topidx] = virt_to_mfn(p2m_top[topidx]); 160 p2m_top_mfn[topidx] = virt_to_mfn(p2m_top[topidx]);
161 } 161 }
162 162
163 for(idx = 0; idx < ARRAY_SIZE(p2m_top_mfn_list); idx++) { 163 for (idx = 0; idx < ARRAY_SIZE(p2m_top_mfn_list); idx++) {
164 unsigned topidx = idx * P2M_ENTRIES_PER_PAGE; 164 unsigned topidx = idx * P2M_ENTRIES_PER_PAGE;
165 p2m_top_mfn_list[idx] = virt_to_mfn(&p2m_top_mfn[topidx]); 165 p2m_top_mfn_list[idx] = virt_to_mfn(&p2m_top_mfn[topidx]);
166 } 166 }
@@ -179,7 +179,7 @@ void __init xen_build_dynamic_phys_to_machine(void)
179 unsigned long max_pfn = min(MAX_DOMAIN_PAGES, xen_start_info->nr_pages); 179 unsigned long max_pfn = min(MAX_DOMAIN_PAGES, xen_start_info->nr_pages);
180 unsigned pfn; 180 unsigned pfn;
181 181
182 for(pfn = 0; pfn < max_pfn; pfn += P2M_ENTRIES_PER_PAGE) { 182 for (pfn = 0; pfn < max_pfn; pfn += P2M_ENTRIES_PER_PAGE) {
183 unsigned topidx = p2m_top_index(pfn); 183 unsigned topidx = p2m_top_index(pfn);
184 184
185 p2m_top[topidx] = &mfn_list[pfn]; 185 p2m_top[topidx] = &mfn_list[pfn];
@@ -207,7 +207,7 @@ static void alloc_p2m(unsigned long **pp, unsigned long *mfnp)
207 p = (void *)__get_free_page(GFP_KERNEL | __GFP_NOFAIL); 207 p = (void *)__get_free_page(GFP_KERNEL | __GFP_NOFAIL);
208 BUG_ON(p == NULL); 208 BUG_ON(p == NULL);
209 209
210 for(i = 0; i < P2M_ENTRIES_PER_PAGE; i++) 210 for (i = 0; i < P2M_ENTRIES_PER_PAGE; i++)
211 p[i] = INVALID_P2M_ENTRY; 211 p[i] = INVALID_P2M_ENTRY;
212 212
213 if (cmpxchg(pp, p2m_missing, p) != p2m_missing) 213 if (cmpxchg(pp, p2m_missing, p) != p2m_missing)
@@ -407,7 +407,8 @@ out:
407 preempt_enable(); 407 preempt_enable();
408} 408}
409 409
410pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep) 410pte_t xen_ptep_modify_prot_start(struct mm_struct *mm,
411 unsigned long addr, pte_t *ptep)
411{ 412{
412 /* Just return the pte as-is. We preserve the bits on commit */ 413 /* Just return the pte as-is. We preserve the bits on commit */
413 return *ptep; 414 return *ptep;
@@ -878,7 +879,8 @@ static void __xen_pgd_pin(struct mm_struct *mm, pgd_t *pgd)
878 879
879 if (user_pgd) { 880 if (user_pgd) {
880 xen_pin_page(mm, virt_to_page(user_pgd), PT_PGD); 881 xen_pin_page(mm, virt_to_page(user_pgd), PT_PGD);
881 xen_do_pin(MMUEXT_PIN_L4_TABLE, PFN_DOWN(__pa(user_pgd))); 882 xen_do_pin(MMUEXT_PIN_L4_TABLE,
883 PFN_DOWN(__pa(user_pgd)));
882 } 884 }
883 } 885 }
884#else /* CONFIG_X86_32 */ 886#else /* CONFIG_X86_32 */
@@ -993,7 +995,8 @@ static void __xen_pgd_unpin(struct mm_struct *mm, pgd_t *pgd)
993 pgd_t *user_pgd = xen_get_user_pgd(pgd); 995 pgd_t *user_pgd = xen_get_user_pgd(pgd);
994 996
995 if (user_pgd) { 997 if (user_pgd) {
996 xen_do_pin(MMUEXT_UNPIN_TABLE, PFN_DOWN(__pa(user_pgd))); 998 xen_do_pin(MMUEXT_UNPIN_TABLE,
999 PFN_DOWN(__pa(user_pgd)));
997 xen_unpin_page(mm, virt_to_page(user_pgd), PT_PGD); 1000 xen_unpin_page(mm, virt_to_page(user_pgd), PT_PGD);
998 } 1001 }
999 } 1002 }