mirror of
https://github.com/AsahiLinux/m1n1
synced 2024-12-29 22:43:06 +00:00
d9561b7507
All the common/importable stuff now lives in the 'm1n1' module. General use tools are in tools/ Reverse engineering experiments are in experiments/ Signed-off-by: Hector Martin <marcan@marcan.st>
82 lines
2.4 KiB
Python
Executable file
82 lines
2.4 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
# SPDX-License-Identifier: MIT
|
|
import sys, pathlib
|
|
sys.path.append(str(pathlib.Path(__file__).resolve().parents[1]))
|
|
|
|
from m1n1.setup import *
|
|
from m1n1.find_regs import *
|
|
from m1n1 import asm
|
|
|
|
p.iodev_set_usage(IODEV.FB, 0)
|
|
|
|
if u.mrs(SPRR_CONFIG_EL1):
|
|
u.msr(GXF_CONFIG_EL12, 0)
|
|
u.msr(SPRR_CONFIG_EL12, 0)
|
|
u.msr(GXF_CONFIG_EL1, 0)
|
|
u.msr(SPRR_CONFIG_EL1, 0)
|
|
|
|
# Set up HCR_EL2 for EL1, since we can't do it after enabling GXF
|
|
u.inst("nop", call="el1")
|
|
|
|
all_regs = set()
|
|
for reg in [SPRR_CONFIG_EL1, GXF_CONFIG_EL1, SPRR_CONFIG_EL12, GXF_CONFIG_EL12]:
|
|
old_regs = set(find_regs(u, values=False))
|
|
u.msr(reg, 1)
|
|
el2_items = set(find_regs(u))
|
|
el2_vals = dict(el2_items)
|
|
new_regs = set(k for k, v in el2_items)
|
|
|
|
all_regs = all_regs.union(new_regs)
|
|
|
|
diff_regs = new_regs - old_regs
|
|
|
|
print(reg)
|
|
for r in sorted(diff_regs):
|
|
print(" %s --> %lx" % (sysreg_name(r), u.mrs(r)))
|
|
|
|
gl2_items = list(find_regs(u, regs=static_regs,call="gl2"))
|
|
gl2_vals = dict(gl2_items)
|
|
gl2_regs = set(k for k, v in gl2_items)
|
|
|
|
print("GL2")
|
|
for reg in sorted(gl2_regs - all_regs):
|
|
print(" %s -> %lx" % (sysreg_name(reg), gl2_vals[reg]))
|
|
for reg in sorted(gl2_regs):
|
|
if reg in el2_vals and gl2_vals[reg] != el2_vals[reg]:
|
|
print(" ! %s %lx -> %lx" % (sysreg_name(reg), el2_vals[reg], gl2_vals[reg]))
|
|
|
|
u.msr(GXF_CONFIG_EL12, 0)
|
|
u.msr(SPRR_CONFIG_EL12, 0)
|
|
u.msr(GXF_CONFIG_EL1, 0)
|
|
u.msr(SPRR_CONFIG_EL1, 0)
|
|
|
|
gl1_items = list(find_regs(u, regs=static_regs, call="gl1"))
|
|
gl1_vals = dict(gl1_items)
|
|
gl1_regs = set(k for k, v in gl1_items)
|
|
|
|
print("GL1")
|
|
for reg in sorted(gl1_regs - all_regs):
|
|
val = gl1_vals[reg]
|
|
print(" %s -> %lx" % (sysreg_name(reg), val))
|
|
|
|
cval = u.mrs(reg, call="gl1", silent=False)
|
|
print(" cur: 0x%lx" % (cval))
|
|
|
|
try:
|
|
u.msr(reg, cval, call="gl1", silent=False)
|
|
except:
|
|
print(">RO")
|
|
continue
|
|
|
|
gl2_vals = dict(find_regs(u, regs=static_regs,call="gl2"))
|
|
u.msr(reg, cval ^ 0xffff, call="gl1", silent=True)
|
|
|
|
for r, v in find_regs(u, regs=static_regs, call="gl2"):
|
|
if v != gl2_vals[r]:
|
|
print(" GL2 access: %s %lx -> %lx" % (sysreg_name(r), gl2_vals[r], v))
|
|
|
|
u.msr(reg, cval, call="gl1", silent=True)
|
|
|
|
for reg in sorted(gl1_regs):
|
|
if reg in el2_vals and gl1_vals[reg] != el2_vals[reg]:
|
|
print(" ! %s %lx -> %lx" % (sysreg_name(reg), el2_vals[reg], gl1_vals[reg]))
|