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Kai Huang authored
This patch avoids unnecessary dirty GPA logging to PML buffer in EPT violation path by setting D-bit manually prior to the occurrence of the write from guest. We only set D-bit manually in set_spte, and leave fast_page_fault path unchanged, as fast_page_fault is very unlikely to happen in case of PML. For the hva <-> pa change case, the spte is updated to either read-only (host pte is read-only) or be dropped (host pte is writeable), and both cases will be handled by above changes, therefore no change is necessary. Signed-off-by:
Kai Huang <kai.huang@linux.intel.com> Reviewed-by:
Xiao Guangrong <guangrong.xiao@linux.intel.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
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