website-struct

Struct: nd_pfn_sb

Status

Regular

• In 4.4: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      u8 padding[4012];
      __le64 checksum;
  };
  

• In 4.8: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      u8 padding[4000];
      __le64 checksum;
  };
  

• In 4.10: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      u8 padding[4000];
      __le64 checksum;
  };
  

• In 4.13: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      u8 padding[4000];
      __le64 checksum;
  };
  

• In 4.15: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      u8 padding[4000];
      __le64 checksum;
  };
  

• In 4.18: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      u8 padding[4000];
      __le64 checksum;
  };
  

• In 5.0: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      u8 padding[4000];
      __le64 checksum;
  };
  

• In 5.3: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      u8 padding[4000];
      __le64 checksum;
  };
  

• In 5.4: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In 5.8: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In 5.11: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In 5.13: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In 5.15: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In 5.19: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In 6.2: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In 6.5: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In 6.8: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

Arch

• In arm64: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In armhf: Absent ⚠️
• In ppc64el: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In riscv64: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

Flavor

• In aws: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In azure: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In gcp: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

• In lowlatency: ✅

  struct nd_pfn_sb {
      u8 signature[16];
      u8 uuid[16];
      u8 parent_uuid[16];
      __le32 flags;
      __le16 version_major;
      __le16 version_minor;
      __le64 dataoff;
      __le64 npfns;
      __le32 mode;
      __le32 start_pad;
      __le32 end_trunc;
      __le32 align;
      __le32 page_size;
      __le16 page_struct_size;
      u8 padding[3994];
      __le64 checksum;
  };
  

Differences

Regular

• Changed between 4.4 and 4.8 ⚠️

  • Field added. __le32 start_pad
  • Field added. __le32 end_trunc
  • Field added. __le32 align
  • Field type changed. u8 padding[4012] ➡️ u8 padding[4000]
• No changes between 4.8 and 4.10 ✅
• No changes between 4.10 and 4.13 ✅
• No changes between 4.13 and 4.15 ✅
• No changes between 4.15 and 4.18 ✅
• No changes between 4.18 and 5.0 ✅
• No changes between 5.0 and 5.3 ✅
• Changed between 5.3 and 5.4 ⚠️

  • Field added. __le32 page_size
  • Field added. __le16 page_struct_size
  • Field type changed. u8 padding[4000] ➡️ u8 padding[3994]
• No changes between 5.4 and 5.8 ✅
• No changes between 5.8 and 5.11 ✅
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• No changes between 5.15 and 5.19 ✅
• No changes between 5.19 and 6.2 ✅
• No changes between 6.2 and 6.5 ✅
• No changes between 6.5 and 6.8 ✅

Arch

• No changes between amd64 and arm64 ✅
• No changes between amd64 and ppc64el ✅
• No changes between amd64 and riscv64 ✅

Flavor

• No changes between generic and aws ✅
• No changes between generic and azure ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅