block: vhdx - remove BAT file offset bit shifting

Bit shifting can be fun, but in this case it was unnecessary.  The
upper 44 bits of the 64-bit BAT entry is specifies the File Offset,
so we shifted the bits to get access to the value.

However, per the spec the value is in MB.  So we dutifully shifted back
to the left by 20 bits, to convert to a true uint64_t file offset.

This replaces those steps with just a bit mask, to get rid of the lower
20 bits instead.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2 files changed
tree: e8ca87c861263fb2f1748b7e8d24f282aec692b5
  1. audio/
  2. backends/
  3. block/
  4. bsd-user/
  5. default-configs/
  6. disas/
  7. docs/
  8. fpu/
  9. fsdev/
  10. gdb-xml/
  11. hw/
  12. include/
  13. libcacard/
  14. linux-headers/
  15. linux-user/
  16. net/
  17. pc-bios/
  18. po/
  19. qapi/
  20. qga/
  21. qobject/
  22. qom/
  23. roms/
  24. scripts/
  25. slirp/
  26. stubs/
  27. sysconfigs/
  28. target-alpha/
  29. target-arm/
  30. target-cris/
  31. target-i386/
  32. target-lm32/
  33. target-m68k/
  34. target-microblaze/
  35. target-mips/
  36. target-moxie/
  37. target-openrisc/
  38. target-ppc/
  39. target-s390x/
  40. target-sh4/
  41. target-sparc/
  42. target-unicore32/
  43. target-xtensa/
  44. tcg/
  45. tests/
  46. trace/
  47. ui/
  48. util/
  49. .exrc
  50. .gitignore
  51. .gitmodules
  52. .mailmap
  53. aio-posix.c
  54. aio-win32.c
  55. arch_init.c
  56. async.c
  57. balloon.c
  58. block-migration.c
  59. block.c
  60. blockdev-nbd.c
  61. blockdev.c
  62. blockjob.c
  63. bt-host.c
  64. bt-vhci.c
  65. Changelog
  66. CODING_STYLE
  67. configure
  68. COPYING
  69. COPYING.LIB
  70. coroutine-gthread.c
  71. coroutine-sigaltstack.c
  72. coroutine-ucontext.c
  73. coroutine-win32.c
  74. cpu-exec.c
  75. cpus.c
  76. cputlb.c
  77. device-hotplug.c
  78. device_tree.c
  79. disas.c
  80. dma-helpers.c
  81. dump.c
  82. exec.c
  83. gdbstub.c
  84. HACKING
  85. hmp-commands.hx
  86. hmp.c
  87. hmp.h
  88. iohandler.c
  89. ioport.c
  90. kvm-all.c
  91. kvm-stub.c
  92. LICENSE
  93. main-loop.c
  94. MAINTAINERS
  95. Makefile
  96. Makefile.objs
  97. Makefile.target
  98. memory.c
  99. memory_mapping.c
  100. migration-exec.c
  101. migration-fd.c
  102. migration-rdma.c
  103. migration-tcp.c
  104. migration-unix.c
  105. migration.c
  106. monitor.c
  107. nbd.c
  108. os-posix.c
  109. os-win32.c
  110. page_cache.c
  111. qapi-schema.json
  112. qdev-monitor.c
  113. qdict-test-data.txt
  114. qemu-bridge-helper.c
  115. qemu-char.c
  116. qemu-coroutine-io.c
  117. qemu-coroutine-lock.c
  118. qemu-coroutine-sleep.c
  119. qemu-coroutine.c
  120. qemu-doc.texi
  121. qemu-img-cmds.hx
  122. qemu-img.c
  123. qemu-img.texi
  124. qemu-io-cmds.c
  125. qemu-io.c
  126. qemu-log.c
  127. qemu-nbd.c
  128. qemu-nbd.texi
  129. qemu-options-wrapper.h
  130. qemu-options.h
  131. qemu-options.hx
  132. qemu-seccomp.c
  133. qemu-tech.texi
  134. qemu-timer.c
  135. qemu.nsi
  136. qemu.sasl
  137. qmp-commands.hx
  138. qmp.c
  139. qtest.c
  140. readline.c
  141. README
  142. rules.mak
  143. savevm.c
  144. spice-qemu-char.c
  145. tcg-runtime.c
  146. tci.c
  147. thread-pool.c
  148. thunk.c
  149. tpm.c
  150. trace-events
  151. translate-all.c
  152. translate-all.h
  153. user-exec.c
  154. VERSION
  155. version.rc
  156. vl.c
  157. xbzrle.c
  158. xen-all.c
  159. xen-mapcache.c
  160. xen-stub.c