diff options
| author |   Paolo Bonzini <pbonzini@redhat.com> | 2021-04-02 08:05:19 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-04-17 08:31:04 -0400 |
| commit | dbb6964e4c38509936719223530acb1870cd6e86 (patch) | |
| tree | 697cb3afcd09d2b28d9013a216fd301e7375d187 /virt/kvm | |
| parent | KVM: s390x: implement KVM_CAP_SET_GUEST_DEBUG2 (diff) | |
| download | linux-dev-dbb6964e4c38509936719223530acb1870cd6e86.tar.xz linux-dev-dbb6964e4c38509936719223530acb1870cd6e86.zip | |
KVM: MMU: protect TDP MMU pages only down to required level
When using manual protection of dirty pages, it is not necessary
to protect nested page tables down to the 4K level; instead KVM
can protect only hugepages in order to split them lazily, and
delay write protection at 4K-granularity until KVM_CLEAR_DIRTY_LOG.
This was overlooked in the TDP MMU, so do it there as well.
Fixes: a6a0b05da9f37 ("kvm: x86/mmu: Support dirty logging for the TDP MMU")
Cc: Ben Gardon <bgardon@google.com>
Reviewed-by: Keqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt/kvm')
0 files changed, 0 insertions, 0 deletions