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(parent: 77662e0) | patch
KVM: fix the handling of dirty bitmaps to avoid overflows
authorTakuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Mon, 12 Apr 2010 10:35:35 +0000 (19:35 +0900)
committerAvi Kivity <avi@redhat.com>
Tue, 20 Apr 2010 10:06:55 +0000 (13:06 +0300)
commit87bf6e7de1134f48681fd2ce4b7c1ec45458cb6d
treeae8ce63cecab98c036c0d76422de42cf78e042f4tree | snapshot
parent77662e0028c7c63e34257fda03ff9625c59d939dcommit | diff
KVM: fix the handling of dirty bitmaps to avoid overflows

Int is not long enough to store the size of a dirty bitmap.

This patch fixes this problem with the introduction of a wrapper
function to calculate the sizes of dirty bitmaps.

Note: in mark_page_dirty(), we have to consider the fact that
  __set_bit() takes the offset as int, not long.

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
arch/ia64/kvm/kvm-ia64.c diff | blob | blame | history
arch/powerpc/kvm/book3s.c diff | blob | blame | history
arch/x86/kvm/x86.c diff | blob | blame | history
include/linux/kvm_host.h diff | blob | blame | history
virt/kvm/kvm_main.c diff | blob | blame | history
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