Implement payload compression

tools/smmu_payload.py

@@ -0,0 +1,38 @@
+'''
+Copyright (c) 2018 balika011
+
+This program is free software; you can redistribute it and/or modify it
+under the terms and conditions of the GNU General Public License,
+version 2, as published by the Free Software Foundation.
+
+This program is distributed in the hope it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+'''
+
+from keystone import *
+
+CODE = b'''
+	LDR	X1, =0x70019010
+	MOV X0, #0x1
+	STR W0, [X1]
+
+loop:
+	IC	IALLUIS
+	DSB ISH
+	B loop
+	MOV X0, #0x0
+	STR W0, [X1]
+	LDR	X0, =0x4002B000
+	BR	X0
+'''
+try:
+	ks = Ks(KS_ARCH_ARM64, KS_MODE_LITTLE_ENDIAN)
+	encoding, count = ks.asm(CODE, 0x0)
+	print("%s = %s (number of statements: %u)" %(CODE, ', '.join([('0x%02x' % (x)) for x in encoding]), count))
+except KsError as e:
+	print("ERROR: %s" %e)