AMPR events were registered and raised as EVFILT_USER. Titles that
dispatch their AMPR queue by filter ignore those events, so reads that
complete through WriteKernelEventQueue never finish. Add, delete and
trigger them with EVFILT_AMPR (-25).
sceAmprAmmCommandBufferMapAsPrt, AllocatePaForPrt, RemapIntoPrt and
UnmapToPrt, with the MapAsPrt and AllocatePaForPrt measures. Signatures,
checks and their order follow ampr_emu.
The executor keeps the PRT pages of the AMM ranges. Unbacked PRT pages
are zero-filled with GPU read access; AllocatePaForPrt backs each
unbacked page with a pool page and changes the type and protection of
backed ones; RemapIntoPrt moves a mapped range into a PRT range; and
UnmapToPrt returns the pages to the pool and zero-fills them again. A
plain map, unmap or remap over a PRT range ends it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
libSceAmpr gains sceAmprAmmCommandBufferRemap, MultiMap, ModifyProtect
and ModifyMtypeProtect with their GPU mask forms and the eight measure
functions. Signatures and the protection and mask checks follow ampr_emu.
The executor keeps a page table of the AMM ranges: each page's physical
offset, protection, memory type and whether it came from the pool. A
remap moves the pages of a fully mapped range and leaves the old range
reserved; a multimap maps the same pages again; a pool page returns to
the pool only when its last mapping goes. A protection change applies
the masked bits page by page.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
libSceAmpr gains the AMM command buffer (constructor, destructor, map,
map direct and unmap, with their GPU mask forms and measures),
sceAmprAmmGiveDirectMemory, sceAmprAmmGetVirtualAddressRanges, the three
submit forms and sceAmprAmmWaitCommandBufferCompletion. The APR
MapBegin, MapDirectBegin and MapEnd commands and their measures record
the same map commands.
The libkernel executor now maps: a plain map takes pages from the direct
memory given to the mapper with usage 1, a direct map uses the given
offset, and an unmap returns the pages to that pool and leaves the range
reserved. The AMM ranges are reserved in the guest arena on first use.
Commands are walked by the buffer's byte offset so an AMM submission can
run raw command memory.
Signatures, the protection mask and the APR map rules follow ampr_emu;
the mapper model follows PS5PCEM. While an APR map region is open, a
second begin and every completion write return EPERM.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
sceAmprAprCommandBufferReadFileGather, ReadFileScatter,
ReadFileGatherScatter and ResetGatherScatterState, with their measure
functions. Signatures, argument checks and the read cursor follow
ampr_emu: each read leaves the file, the next offset and the next
destination; a gather reads at a new offset into the next destination, a
scatter continues in the file into a new destination, and a
gather-scatter takes both. Recording one needs a file read since the last
reset, tracked in the command buffer object next to its type.
sceAmprAprCommandBufferReadFile now applies the same length, offset and
destination checks and rejects a null command buffer instead of
dereferencing it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
sceAmprCommandBufferWaitOnCounter_04_00 and WriteCounter_04_00 take the
counter access size and offset, the wait mask and the write operation,
with their measure functions; ConstructNop records a nop with an optional
leading word and a payload of up to 60 bytes, and ConstructMarker records
the set, push and pop markers by type. Signatures and checks follow
ampr_emu.
The executor now reads and writes counters by access: the 8-byte access
of counter n spans n and n + 1, the 2- and 1-byte accesses a half or a
byte of the counter. Waits compare at the access width, so the signed and
wrapped compares see the field's own sign bit, and the atomic writes wrap
within the field. The legacy counter commands record a 4-byte access.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
sceAmprCommandBufferWaitOnAddress took (address, reference, mask,
compare) and WaitOnCounter (counter, reference, compare), and both read
the compare value as WAIT_REG_MEM (0 always, 1 <, 2 <=, 3 ==, ...).
ampr_emu, which replaces libSceAmpr for retail titles on the console,
has (address, reference, compare, flush) and (counter, reference,
compare, flush) with the SCE compare values (0 ==, 1 > unsigned,
2 < unsigned, 3 !=), so waits were decoded as other comparisons and
could block forever or pass early.
WriteAddressFromCounterPairOnCompletion takes one counter index, not
two, and WriteKernelEventQueueOnCompletion an int id and no user data.
Counter indices above 127, compare values above 3, flush values above 1
and misaligned wait addresses return EINVAL, as in ampr_emu.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
sceAmprCommandBufferPushMarker, PushMarkerWithColor, PopMarker, SetMarker
and SetMarkerWithColor record a marker command, and the matching
sceAmprMeasureCommandSize functions return its size. The APR executor
skips markers, as it does a nop.
Signatures follow the ampr_emu reimplementation of libSceAmpr.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Sign-in, web browser and player dialogs finish cancelled; the message dialog finishes at once;
NpAuth, entitlement consumption, reachability, account age and the NpUtility bandwidth test
report signed out; sceKernelMtypeprotect changes the protection (the memory type has no host
equivalent); the APR ForEach resolvers resolve every path and report each failure in its own
result entry. vswprintf's stub is dropped in favor of the existing wide-formatter
implementation, which already covers it on every platform.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
A file read into guest memory is a host write: before the I/O it pins the shared pages it
covers, which reopens any page armed for write tracking and keeps write tracking from arming
it again until the read ends, when the pages count as written. A destination the guest cannot
write fails with EFAULT before any I/O; read and pread throw as for any failed read, AIO
reports SCE_KERNEL_ERROR_EFAULT, and APR throws. APR also throws when a read ends before the
requested size.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Only the lines this branch added lose their comments; the commits before
keep them, with the reasoning behind each change, for whoever digs into
that code later.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
libkernel:
- direct memory keeps its contents per physical page across unmap and
remap; a page mapped at two live addresses at once throws
- sceKernelDirectMemoryQuery answers from tracked allocations
- SCE protections read back as set, GPU and AMPR bits included
- APR prefix path resolve, file size and stat by id, positional reads,
fsync/pread/pwrite; directories open as descriptors on Windows
- sceKernelCheckReachability, getpeername, shutdown
- Dinkumware C11 threads (_Mtx_*, _Cnd_*, _Thrd_*) in the title libc
layout; any pthread stack size, rounded at thread creation
libc:
- unaddressed guest mappings go to the system-managed area from
0x2_0000_0000, leaving the application area to fixed mappings
- the process starts in /app0
- guest sscanf on Windows; a null %s prints as (null) as on FreeBSD
- localeconv, _FNan, _FDtest, _FExp, __udivti3, wcsncpy_s, aligned
operator new, _Throw_Cpp_error
Tests: direct memory following physical pages, guest formatting.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- libc: reserve guest memory in one arena below the PS5 map limit with
MEM_WRITE_WATCH (GuestArena) and a caching guest heap; the allocation
registry gains a generation counter, an invalidator callback for the
driver's page cache and a pin waiter for leased ranges. This replaces
the fault-based GuestMemoryTracking/GuestMemoryBacking layer, whose
files are removed.
- libkernel: mmap/mprotect/munmap on the arena, flexible memory budget,
real sceKernelVirtualQuery; POSIX pthread layer, rwlocks, timed locks,
TSD, event flags; 0.5 ms scheduler tick and high-resolution sleeps;
TSC/clock/time functions; file APIs return SCE errno codes; the APR
file-streaming API.
- libc: vectored crash reporter with backtraces for fatal exceptions,
SIGABRT, UCRT invalid parameters and process exit; SSE4a EXTRQ/INSERTQ
emulation for Intel hosts; %ls/%lc/%S/%C with the guest's 16-bit
wchar_t; hand-written setjmp/longjmp for the guest jmp_buf; a path
alias table for short save-data mount points; more string, stdio and
math exports.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0177gthrWEBBfBu5xJDXgBfo
Gjon Gojcevic
Chad
DotDebian
boykopovar
Michon
STL1te
devilismyfriend