exec: Respect as_tranlsate_internal length clamp
commitc3c1bb99d1c11978d9ce94d1bdcf0705378c1459
authorPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Tue, 17 Mar 2015 05:35:54 +0000 (16 22:35 -0700)
committerPaolo Bonzini <pbonzini@redhat.com>
Wed, 18 Mar 2015 11:09:42 +0000 (18 12:09 +0100)
tree4389c54ae07345591dfadb0b30d528df3e29711f
parent196d4fc56d824ccbbb58714e9ad0793053ef8260
exec: Respect as_tranlsate_internal length clamp

address_space_translate_internal will clamp the *plen length argument
based on the size of the memory region being queried. The iommu walker
logic in addresss_space_translate was ignoring this by discarding the
post fn call value of *plen. Fix by just always using *plen as the
length argument throughout the fn, removing the len local variable.

This fixes a bootloader bug when a single elf section spans multiple
QEMU memory regions.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-Id: <1426570554-15940-1-git-send-email-peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
exec.c