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author | Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> | 2015-11-20 17:45:44 +0900 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-11-25 17:26:47 +0100 |
commit | 77fbbbd2f09fae486190bb2bd7142647dc2a6e8b (patch) | |
tree | 540f568e2226e1cfe370c3ed7cf0bd4544b03c22 /Documentation/BUG-HUNTING | |
parent | afd28fe1c901429eba8957f54bdb4a13cc15ae44 (diff) |
KVM: x86: MMU: Consolidate BUG_ON checks for reverse-mapped sptes
At some call sites of rmap_get_first() and rmap_get_next(), BUG_ON is
placed right after the call to detect unrelated sptes which must not be
found in the reverse-mapping list.
Move this check in rmap_get_first/next() so that all call sites, not
just the users of the for_each_rmap_spte() macro, will be checked the
same way.
One thing to keep in mind is that kvm_mmu_unlink_parents() also uses
rmap_get_first() to handle parent sptes. The change will not break it
because parent sptes are present, at least until drop_parent_pte()
actually unlinks them, and not mmio-sptes.
Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'Documentation/BUG-HUNTING')
0 files changed, 0 insertions, 0 deletions