diff options
Diffstat (limited to 'arch/s390/include/asm/pgtable.h')
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index d95012f9e77f..9bfdbca14f95 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -30,6 +30,7 @@ #include <linux/sched.h> #include <linux/mm_types.h> #include <linux/page-flags.h> +#include <linux/radix-tree.h> #include <asm/bug.h> #include <asm/page.h> @@ -789,19 +790,25 @@ static inline pgste_t pgste_set_pte(pte_t *ptep, pgste_t pgste, pte_t entry) /** * struct gmap_struct - guest address space + * @crst_list: list of all crst tables used in the guest address space * @mm: pointer to the parent mm_struct + * @guest_to_host: radix tree with guest to host address translation + * @host_to_guest: radix tree with pointer to segment table entries + * @guest_table_lock: spinlock to protect all entries in the guest page table * @table: pointer to the page directory * @asce: address space control element for gmap page table - * @crst_list: list of all crst tables used in the guest address space * @pfault_enabled: defines if pfaults are applicable for the guest */ struct gmap { struct list_head list; + struct list_head crst_list; struct mm_struct *mm; + struct radix_tree_root guest_to_host; + struct radix_tree_root host_to_guest; + spinlock_t guest_table_lock; unsigned long *table; unsigned long asce; void *private; - struct list_head crst_list; bool pfault_enabled; }; @@ -846,8 +853,8 @@ int gmap_map_segment(struct gmap *gmap, unsigned long from, int gmap_unmap_segment(struct gmap *gmap, unsigned long to, unsigned long len); unsigned long __gmap_translate(struct gmap *, unsigned long gaddr); unsigned long gmap_translate(struct gmap *, unsigned long gaddr); -unsigned long __gmap_fault(struct gmap *, unsigned long gaddr); -unsigned long gmap_fault(struct gmap *, unsigned long gaddr); +int __gmap_link(struct gmap *gmap, unsigned long gaddr, unsigned long vmaddr); +int gmap_fault(struct gmap *, unsigned long gaddr, unsigned int fault_flags); void gmap_discard(struct gmap *, unsigned long from, unsigned long to); void __gmap_zap(struct gmap *, unsigned long gaddr); bool gmap_test_and_clear_dirty(unsigned long address, struct gmap *); |