tree 2da6a8109ddacaf5fc060119ea310856fedf33b4
parent aaa6a40194e9f204cb853f64ef3c1e170bb014e8
author Paolo Bonzini <pbonzini@redhat.com> 1375100859 +0200
committer Paolo Bonzini <pbonzini@redhat.com> 1378397488 +0200

exec: fix writing to MMIO area with non-power-of-two length

The problem is introduced by commit 2332616 (exec: Support 64-bit
operations in address_space_rw, 2013-07-08).  Before that commit,
memory_access_size would only return 1/2/4.

Since alignment is already handled above, reduce l to the largest
power of two that is smaller than l.

Cc: qemu-stable@nongnu.org
Reported-by: Oleksii Shevchuk <alxchk@gmail.com>
Tested-by: Oleksii Shevchuk <alxchk@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>