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.
39 lines
1.8 KiB
Python
Executable File
39 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python3
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# SPDX-License-Identifier: MIT
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"""Pin the shipped boot CPU self-IPI and guest-owned signal-enable path."""
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import importlib.util
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from pathlib import Path
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import struct
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import unittest
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ROOT=Path(__file__).resolve().parents[1]
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class StockIPI(unittest.TestCase):
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def test_self_request_fiq_ack_and_signal_enable(self):
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spec=importlib.util.spec_from_file_location('kc',ROOT/'tools/kc-load.py')
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kc=importlib.util.module_from_spec(spec);spec.loader.exec_module(kc)
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im=kc.Image((ROOT/'downloads/extracted/j700ap/kernelcache.release.mac17p').read_bytes())
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def word(low):
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va=0xfffffe0000000000+low
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_,base,_,off,_=next(s for s in im.segments if s[1]<=va<s[1]+s[4])
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return struct.unpack_from('<I',im.data,off+va-base)[0]
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# PE_cpu_machine_init chooses local/global self request from MPIDR.
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self.assertEqual(word(0xc1ebfe0),0xd51df008)
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self.assertEqual(word(0xc1ebff0),0xd51df028)
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# The observed SMP path uses the same local request encoding.
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self.assertEqual(word(0xba7e310),0xd51df008)
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# The fast FIQ path reads pending, W1C-acks, and calls the signal handler(0).
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self.assertEqual(word(0xba8591c),0xd53df134)
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self.assertEqual(word(0xba85930),0xd51df133)
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self.assertEqual(word(0xba85938),0x52800000)
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branch=word(0xba8593c)
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self.assertEqual(branch>>26,0x25)
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imm=branch&0x3ffffff
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if imm&(1<<25):imm-=1<<26
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self.assertEqual(0xba8593c+4*imm,0xba7e788)
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# Signal handler clears SIGPdisabled in cpu_data+0x48 with a real guest atomic.
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self.assertEqual(word(0xba7e804),0x910122a8)
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self.assertEqual(word(0xba7e808),0x52b00009)
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self.assertEqual(word(0xba7e80c),0xb8e91116)
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if __name__=='__main__':unittest.main()
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