x86 mm: revert check in clear_mmio_p2m_entry() changed in 21940:
e7afe98afd43
valid_mfn() cannot be used here as MMIO pages are always above max_mem.
Also added sanity checking for type == p2m_mmio_direct before clearing
page table entry. This should fix both VT-d and SR-IOV issues reported
recently as there are no SR-IOV specific code in Xen. As far as Xen
is concern, SR-IOV virtual function is just another PCI device.
Signed-off-by: Allen Kay allen.m.kay@intel.com
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
projects / xen.git / commit