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proxy: add dart_dump.py

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Signed-off-by: Sven Peter <sven@svenpeter.dev>
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Sven Peter 2021-05-29 20:58:55 +02:00 committed by Hector Martin
parent 9529ec2b4f
commit c47f1b2095
1 changed files with 71 additions and 0 deletions
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71
proxyclient/dart_dump.py Normal file
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from setup import *
import asm
import struct
class DART:
def __init__(self, base):
self.base = base
def dump_table2(self, base, l1_addr):
tbl = iface.readmem(l1_addr, 0x4000)
for i in range(0, len(tbl)//8):
pte = struct.unpack("<Q",tbl[i*8:i*8+8])[0]
if not (pte & 0b01):
#print(" page (%d): %08x ... %08x -> DISABLED" % (i, base + i*0x4000, base + (i+1)*0x4000))
continue
print(" page (%d): %08x ... %08x -> %016x [%s]" % (i, base + i*0x4000, base + (i+1)*0x4000, pte&~0b11, bin(pte&0b11)))
def dump_table(self, base, l1_addr):
tbl = iface.readmem(l1_addr, 0x4000)
for i in range(0, len(tbl)//8):
pte = struct.unpack("<Q",tbl[i*8:i*8+8])[0]
if not (pte & 0b01):
#print(" table (%d): %08x ... %08x -> DISABLED" % (i, base + i*0x2000000, base + (i+1)*0x2000000))
continue
print(" table (%d): %08x ... %08x -> %016x [%s]" % (i, base + i*0x2000000, base + (i+1)*0x2000000, pte&~0b11, bin(pte&0b11)))
self.dump_table2(base + i*0x2000000, pte & ~0b11)
def dump_ttbr(self, idx, ttbr):
if not ttbr & (1<<31):
return
l1_addr = (ttbr & ~(1<<31)) << 12
print(" TTBR%d: %09x" % (idx, l1_addr))
self.dump_table(0, l1_addr)
def dump_device(self, idx):
tcr = p.read32(self.base + 0x100 + 4*idx)
ttbrs = [p.read32(self.base + 0x200 + 16*idx + 4*i) for i in range(4)]
ttbrs_str = " ".join("%08x" % t for t in ttbrs)
print("dev %02x: TCR=%08x TTBRs = [%s]" % (idx, tcr, ttbrs_str))
if (tcr & 0x80) and (tcr & 0x100):
print(" mode: INVALID")
elif tcr & 0x80:
print(" mode: TRANSLATE")
for idx, ttbr in enumerate(ttbrs):
self.dump_ttbr(idx, ttbr)
elif tcr & 0x100:
print(" mode: 0x100, UNKNOWN MODE")
else:
print(" mode: UNKNOWN")
def dump_all(self):
for i in range(16):
self.dump_device(i)
if len(sys.argv) > 1:
dart_addr = int(sys.argv[1], 16)
else:
dart_addr = 0x231304000
# disp0 DART
# note that there's another range just before this one
disp0 = DART(dart_addr)
disp0.dump_all()