tree fdd6216ff10318759f83514714f7fd84d0f90205
parent 5b274ed74d21929c5ec399b32f47ad46105b3721
author Tom Musta <tommusta@gmail.com> 1401372743 -0500
committer Alexander Graf <agraf@suse.de> 1402917880 +0200

target-ppc: Confirm That .bss Pages Are Valid

The existing code does a check to ensure that a .bss region is properly
mmap'd.  When additional mmap is required, the (guest) pages are also
validated.  However, this code has a bug: when host page size is larger
than target page size, it is possible for the .bss pages to already be
(host) mapped but the guest .bss pages may not be valid.

The check to mmap additional space is separated from the flagging of the
target (guest) pages, thus ensuring that both aspects are done properly.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>