Commit fd28938b authored May 11, 2016 by Richard W.M. Jones Committed by Paolo Bonzini May 23, 2016

scripts/signrom.py: Check for magic in option ROMs.



Because of the risk that compilers might not emit the asm() block at
the beginning of the option ROM, check that the ROM contains the
required magic signature.

Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Message-Id: <1463000807-18015-3-git-send-email-rjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent 6f71b779

scripts/signrom.py

+4 −1

Original line number	Diff line number	Diff line
		@@ -17,7 +17,10 @@ if len(sys.argv) < 3:
		fin = open(sys.argv[1], 'rb')
		fout = open(sys.argv[2], 'wb')

		fin.seek(2)
		magic = fin.read(2)
		if magic != '\x55\xaa':
		sys.exit("%s: option ROM does not begin with magic 55 aa" % sys.argv[1])

		size_byte = ord(fin.read(1))
		fin.seek(0)