Acelogic
1510d8c6ce
An EL2 monitor/hypervisor and toolchain that boots macOS 27 on the ASUS A16 (Snapdragon X2 Elite), with an Adreno Metal plug-in and IOGPU kext, and air2ir3, an AIR to Mesa ir3 shader compiler. MIT, with GPL-2.0 components listed in LICENSE and THIRD_PARTY_NOTICES.md. No Apple, Qualcomm, ASUS or Microsoft binaries are included.
38 lines
1.9 KiB
Python
38 lines
1.9 KiB
Python
# SPDX-License-Identifier: MIT
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"""Validate a stopped CPU's breakpoint-bank lifecycle, not merely build flags."""
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import struct
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SIZE=280
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SITES={
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0xfffffe000b86eae8:0xd5184033,0xfffffe000b86eb08:0xd5184032,
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0xfffffe000b86f9f4:0xd5184002,0xfffffe000b86fc14:0xd5184002,
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0xfffffe000b86fc70:0xd518402c,0xfffffe000b86fe88:0xd5184002,
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}
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FIELDS=('dfr0','saved','installed','install_verified','restores','restore_failed',
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'traps','rejected','stepped','last_pc','last_word')
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def audit(raw,*,enabled,prepared):
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if len(raw)!=SIZE or type(enabled) is not bool or type(prepared) is not bool:
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raise ValueError('invalid native writer audit input')
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words=struct.unpack('<35Q',raw)
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if not enabled or not prepared:
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if any(words):raise ValueError('unused native writer bank changed')
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return dict(active=False,traps=0,stepped=0,raw_hex=raw.hex())
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row=dict(zip(FIELDS,words[24:]))
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if not 6<=row['dfr0']&15<=11 or (row['dfr0']>>12)&15<5:
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raise ValueError('native writer debug capacity differs')
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if (row['saved'],row['installed'],row['install_verified'],row['restores'],
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row['restore_failed'],row['rejected'])!=(1,0,1,1,0,0):
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raise ValueError('native writer bank lifecycle is not restored and qualified')
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if words[:12]!=words[12:24]:
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raise ValueError('native writer debug register restoration differs')
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if row['stepped']>row['traps']:
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raise ValueError('native writer step accounting differs')
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if row['traps']:
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if SITES.get(row['last_pc'])!=row['last_word']:
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raise ValueError('native writer terminal instruction differs')
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elif row['last_pc'] or row['last_word']:
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raise ValueError('unobserved native writer has a last instruction')
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return dict(row,active=True,raw_hex=raw.hex(),
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boundary='Recorded per-CPU install/readback and restoration; register bits alone do not prove every comparator executed.')
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