diff options
Diffstat (limited to 'xen/include/asm-x86/paging.h')
| -rw-r--r-- | xen/include/asm-x86/paging.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/xen/include/asm-x86/paging.h b/xen/include/asm-x86/paging.h index 27890791d8..c6b429c691 100644 --- a/xen/include/asm-x86/paging.h +++ b/xen/include/asm-x86/paging.h @@ -192,6 +192,10 @@ int paging_mfn_is_dirty(struct domain *d, mfn_t gmfn); #define L4_LOGDIRTY_IDX(pfn) ((pfn_x(pfn) >> (PAGE_SHIFT + 3 + PAGETABLE_ORDER * 2)) & \ (LOGDIRTY_NODE_ENTRIES-1)) +#define paging_logdirty_levels() \ + (DIV_ROUND_UP(PADDR_BITS - PAGE_SHIFT - (PAGE_SHIFT + 3), \ + PAGE_SHIFT - ilog2(sizeof(mfn_t))) + 1) + #ifdef CONFIG_HVM /* VRAM dirty tracking support */ struct sh_dirty_vram { |