303
edits
Changes
Document DVDLowGetNoDiscOpenPartitionParams and DVDLowGetNoDiscBufferSizes based on what's still left
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=== <s>0x90 DVDLowGetNoDiscOpenPartitionParams</s> ===
=== <s>0x90 DVDLowGetNoDiscOpenPartitionParams</s> ===
−<strong>Dummied out</strong>; always returns 0x80. However, still usable as an Ioctl (which is probably unintended). System menu 4.3U still has a PPC-side implementation (815504c4) but this is not used{{check}}.
+<strong>Dummied out</strong>; always returns 0x80. However, still usable as an Ioctl (which is probably unintended). System menu 4.3U (among other titles) still has a PPC-side implementation (815504c4) but this is not used (the higher-level function that calls it is gone due to not being referenced). This does allow determination of the inputs, though:
+{| class="wikitable"
+ |+ Vector
+ ! Name
+ ! Direction
+ ! Size
+ ! Alignment
+ |-
+ | Command
+ | In
+ | 0x20
+ | 4
+ |-
+ | [[TMD]] size pointer
+ | In
+ | 4
+ | 32
+ |-
+ | [[Certificate chain|Shared certs]] size pointer
+ | In
+ | 4
+ | 32
+ |-
+ | [[Ticket]]
+ | Out
+ | 0x2A4
+ | 32
+ |-
+ | TMD size pointer (again; aliases with previous pointer)
+ | Out
+ | 4
+ | 32
+ |-
+ | [[TMD]]
+ | Out
+ | TMD size, from before
+ | 32
+ |-
+ | Shared certs size pointer (again; aliases with the previous pointer)
+ | Out
+ | 4
+ | 32
+ |-
+ | Shared certs
+ | Out
+ | Shared certs size, from before
+ | 32
+ |-
+ | Partition data offset pointer
+ | Out
+ | 4
+ | 32
+ |-
+ | H3 hashes
+ | Out
+ | 0x18000
+ | 32
+ |}
+Presumably, the ioctlv would have validated size and alignment, and then filled in additional parameters on the command before passing it on to the shared logic that it is still accessible via the ioctlv.
=== <s>0x91 DVDLowNoDiscOpenPartition</s> ===
=== <s>0x91 DVDLowNoDiscOpenPartition</s> ===
<strong>Dummied out</strong>; always returns 0x80. However, still usable as an Ioctl (which is probably unintended).
<strong>Dummied out</strong>; always returns 0x80. However, still usable as an Ioctl (which is probably unintended).
+
+Presumably, the ioctlv would have validated size and alignment, and then filled in additional parameters on the command before passing it on to the shared logic that it is still accessible via the ioctlv. However, no PPC-side code exists so the exact ioctlv arguments are unknown.
=== <s>0x92 DVDLowGetNoDiscBufferSizes</s> ===
=== <s>0x92 DVDLowGetNoDiscBufferSizes</s> ===
−<strong>Dummied out</strong>; always returns 0x80. However, still usable as an Ioctl (which is probably unintended). System menu 4.3U still has a PPC-side implementation (815502b8) but this is not used{{check}}.
+<strong>Dummied out</strong>; always returns 0x80. However, still usable as an Ioctl (which is probably unintended). System menu 4.3U (among other titles) still has a PPC-side implementation (815502b8) but this is not used{{check}}. but this is not used (the higher-level function that calls it is gone due to not being referenced). This does allow determination of the inputs, though:
+{| class="wikitable"
+ |+ Vector
+ ! Name
+ ! Direction
+ ! Size
+ ! Alignment
+ |-
+ | Command
+ | In
+ | 0x20
+ | 4
+ |-
+ | [[TMD]] size pointer
+ | Out
+ | 4
+ | 32
+ |-
+ | [[Certificate chain|Shared certs]] size pointer
+ | Out
+ | 4
+ | 32
+ |}
+Presumably, the ioctlv would have validated size and alignment, and then filled in additional parameters on the command before passing it on to the shared logic that it is still accessible via the ioctlv.
=== 0x93 DVDLowOpenPartitionWithTmdAndTicket ===
=== 0x93 DVDLowOpenPartitionWithTmdAndTicket ===