[PATCH v2 0/9] x86/p2m: hook adjustments

[Jan Beulich <jbeulich@xxxxxxxx>]

This started out with me getting confused by the two write_p2m_entry()
hooks we have - there really ought to be no more than one, or if two
were absolutely needed they imo would better have distinct names. Other
adjustment opportunities (and I hope they're improvements) were found
while getting rid of that one unnecessary layer of indirect calls.

v2 has a build fix for clang in patch 3 and a few new patches.

1: p2m: paging_write_p2m_entry() is a private function
2: p2m: collapse the two ->write_p2m_entry() hooks
3: p2m: suppress audit_p2m hook when possible
4: HAP: move nested-P2M flush calculations out of locked region
5: p2m: split write_p2m_entry() hook
6: p2m: avoid unnecessary calls of write_p2m_entry_pre() hook
7: p2m: pass old PTE directly to write_p2m_entry_pre() hook
8: shadow: cosmetics to sh_unshadow_for_p2m_change()
9: shadow: adjust TLB flushing in sh_unshadow_for_p2m_change()

Jan