Page table entry present check is page table type
specific and static, e.g. just need to check bit0
of page entry for entries of MMU page table and
bit2~bit0 for EPT page table case. hence no need to
check it by callback function every time.
This patch remove 'pgentry_present' callback field and
add a new bitmask field for this page entry present check.
It can get better performance especially when this
check is executed frequently.
Tracked-On: #7327
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Fei Li <fei1.li@intel.com>
Reviewed-by: Yu Wang <yu1.wang@intel.com>
80292a482d