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qemu / qemu / 9b80ddf3460f5513b917720a07a1d32ec4ba1817
commit9b80ddf3460f5513b917720a07a1d32ec4ba1817[log] [tgz]
authoraliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>Sat Mar 28 17:55:06 2009 +0000
committeraliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>Sat Mar 28 17:55:06 2009 +0000
tree68e77ffff069d930d29bfc0f0a18aadef5234f94
parent64bf3f4eec322cd0d179d4b50f3cfc11901bf235 [diff]
Introducing qcow2 extensions (Uri Lublin)

Qcow2 extensions are build of magic (id) len (in bytes) and data.
They reside right after the qcow2 header.
If a backing filename exists it follows the qcow2 extension (if exist)

Qcow2 extensions are read upon image open.
Qcow2 extensions are identified by their magic.
Unknown qcow2 extensions (unknown magic) are skipped.
A Special magic of 0 means end-of-qcow2-extensions.

In this patchset, to be used to keep backing file format.

Based on a work done by Shahar Frank <sfrank@redhat.com>.

Signed-off-by: Uri Lublin <uril@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6907 c046a42c-6fe2-441c-8c8c-71466251a162
1 file changed
tree: 68e77ffff069d930d29bfc0f0a18aadef5234f94
  1. audio/
  2. bsd-user/
  3. darwin-user/
  4. fpu/
  5. gdb-xml/
  6. hw/
  7. keymaps/
  8. linux-user/
  9. pc-bios/
  10. slirp/
  11. target-alpha/
  12. target-arm/
  13. target-cris/
  14. target-i386/
  15. target-m68k/
  16. target-mips/
  17. target-ppc/
  18. target-sh4/
  19. target-sparc/
  20. tcg/
  21. tests/
  22. .gitignore
  23. a.out.h
  24. acl.c
  25. acl.h
  26. aes.c
  27. aes.h
  28. aio.c
  29. alpha-dis.c
  30. alpha.ld
  31. arm-dis.c
  32. arm-semi.c
  33. arm.ld
  34. balloon.h
  35. block-bochs.c
  36. block-cloop.c
  37. block-cow.c
  38. block-dmg.c
  39. block-nbd.c
  40. block-parallels.c
  41. block-qcow.c
  42. block-qcow2.c
  43. block-raw-posix.c
  44. block-raw-win32.c
  45. block-vmdk.c
  46. block-vpc.c
  47. block-vvfat.c
  48. block.c
  49. block.h
  50. block_int.h
  51. bswap.h
  52. bt-host.c
  53. bt-host.h
  54. bt-vhci.c
  55. buffered_file.c
  56. buffered_file.h
  57. cache-utils.c
  58. cache-utils.h
  59. Changelog
  60. cocoa.m
  61. configure
  62. console.c
  63. console.h
  64. COPYING
  65. COPYING.LIB
  66. cpu-all.h
  67. cpu-defs.h
  68. cpu-exec.c
  69. cris-dis.c
  70. curses.c
  71. curses_keys.h
  72. cutils.c
  73. d3des.c
  74. d3des.h
  75. def-helper.h
  76. device_tree.c
  77. device_tree.h
  78. dis-asm.h
  79. disas.c
  80. disas.h
  81. dma-helpers.c
  82. dma.h
  83. dyngen-exec.h
  84. elf.h
  85. elf_ops.h
  86. exec-all.h
  87. exec.c
  88. feature_to_c.sh
  89. gdbstub.c
  90. gdbstub.h
  91. gen-icount.h
  92. host-utils.c
  93. host-utils.h
  94. hostregs_helper.h
  95. hpet.h
  96. hppa-dis.c
  97. hppa.ld
  98. hxtool
  99. i386-dis.c
  100. i386.ld
  101. ia64.ld
  102. keymaps.c
  103. keymaps.h
  104. kqemu.c
  105. kqemu.h
  106. kvm-all.c
  107. kvm.h
  108. libfdt_env.h
  109. LICENSE
  110. loader.c
  111. m68k-dis.c
  112. m68k-semi.c
  113. m68k.ld
  114. MAINTAINERS
  115. Makefile
  116. Makefile.target
  117. migration-exec.c
  118. migration-tcp.c
  119. migration.c
  120. migration.h
  121. mips-dis.c
  122. mips.ld
  123. mipsel.ld
  124. monitor.c
  125. monitor.h
  126. nbd.c
  127. nbd.h
  128. net-checksum.c
  129. net.c
  130. net.h
  131. osdep.c
  132. osdep.h
  133. pci-ids.txt
  134. posix-aio-compat.c
  135. posix-aio-compat.h
  136. ppc-dis.c
  137. ppc.ld
  138. ppc64.ld
  139. qemu-aio.h
  140. qemu-binfmt-conf.sh
  141. qemu-char.c
  142. qemu-char.h
  143. qemu-common.h
  144. qemu-doc.texi
  145. qemu-img.c
  146. qemu-img.texi
  147. qemu-lock.h
  148. qemu-log.h
  149. qemu-malloc.c
  150. qemu-nbd.c
  151. qemu-nbd.texi
  152. qemu-options.hx
  153. qemu-sockets.c
  154. qemu-tech.texi
  155. qemu-timer.h
  156. qemu-tool.c
  157. qemu.sasl
  158. qemu_socket.h
  159. readline.c
  160. readline.h
  161. README
  162. rules.mak
  163. s390-dis.c
  164. s390.ld
  165. savevm.c
  166. sdl.c
  167. sdl_keysym.h
  168. sh4-dis.c
  169. softmmu-semi.h
  170. softmmu_defs.h
  171. softmmu_exec.h
  172. softmmu_header.h
  173. softmmu_template.h
  174. sparc-dis.c
  175. sparc.ld
  176. sparc64.ld
  177. sys-queue.h
  178. sysemu.h
  179. tap-win32.c
  180. texi2pod.pl
  181. thunk.c
  182. thunk.h
  183. TODO
  184. translate-all.c
  185. uboot_image.h
  186. usb-bsd.c
  187. usb-linux.c
  188. usb-stub.c
  189. VERSION
  190. vgafont.h
  191. vl.c
  192. vnc-auth-sasl.c
  193. vnc-auth-sasl.h
  194. vnc-auth-vencrypt.c
  195. vnc-auth-vencrypt.h
  196. vnc-tls.c
  197. vnc-tls.h
  198. vnc.c
  199. vnc.h
  200. vnc_keysym.h
  201. vnchextile.h
  202. x86_64.ld
  203. x_keymap.c
  204. x_keymap.h