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KVM: iommu: fix releasing unmapped page
authorXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Fri, 3 Aug 2012 07:36:52 +0000 (15:36 +0800)
committerAvi Kivity <avi@redhat.com>
Mon, 6 Aug 2012 13:04:46 +0000 (16:04 +0300)
commitf0d9796967f8672879b084f011c74903242a0e9b
tree03b85cb0aada8a8fa4fd538d9b0fddc5460df495tree | snapshot
parentc503512f2b9a8c28917cd929325704f28560d644commit | diff
KVM: iommu: fix releasing unmapped page

There are two bugs:
- the 'error page' is forgot to be released
  [ it is unneeded after commit 66894682340c5, for backport, we
    still do kvm_release_pfn_clean for the error pfn ]

- guest pages are always released regardless of the unmapped page
  (e,g, caused by hwpoison)

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
virt/kvm/iommu.c diff | blob | history
Linux Kernel Source Tree.