On Mon, Jul 02, 2012 at 05:52:39PM +0900, Takuya Yoshikawa wrote: > v3->v4: Resolved trace_kvm_age_page() issue -- patch 6,7 > v2->v3: Fixed intersection calculations. -- patch 3, 8 > > Takuya > > Takuya Yoshikawa (8): > KVM: MMU: Use __gfn_to_rmap() to clean up kvm_handle_hva() > KVM: Introduce hva_to_gfn_memslot() for kvm_handle_hva() > KVM: MMU: Make kvm_handle_hva() handle range of addresses > KVM: Introduce kvm_unmap_hva_range() for > kvm_mmu_notifier_invalidate_range_start() > KVM: Separate rmap_pde from kvm_lpage_info->write_count > KVM: MMU: Add memslot parameter to hva handlers > KVM: MMU: Push trace_kvm_age_page() into kvm_age_rmapp() > KVM: MMU: Avoid handling same rmap_pde in kvm_handle_hva_range() > > arch/powerpc/include/asm/kvm_host.h | 2 + > arch/powerpc/kvm/book3s_64_mmu_hv.c | 47 ++++++++++++--- > arch/x86/include/asm/kvm_host.h | 3 +- > arch/x86/kvm/mmu.c | 107 > +++++++++++++++++++++++------------ > arch/x86/kvm/x86.c | 11 ++++ > include/linux/kvm_host.h | 8 +++ > virt/kvm/kvm_main.c | 3 +- > 7 files changed, 131 insertions(+), 50 deletions(-) > > > >From v2: > > The new test result was impressively good, see below, and THP page > invalidation was more than 5 times faster on my x86 machine. > > Before: > ... > 19.852 us | __mmu_notifier_invalidate_range_start(); > 28.033 us | __mmu_notifier_invalidate_range_start(); > 19.066 us | __mmu_notifier_invalidate_range_start(); > 44.715 us | __mmu_notifier_invalidate_range_start(); > 31.613 us | __mmu_notifier_invalidate_range_start(); > 20.659 us | __mmu_notifier_invalidate_range_start(); > 19.979 us | __mmu_notifier_invalidate_range_start(); > 20.416 us | __mmu_notifier_invalidate_range_start(); > 20.632 us | __mmu_notifier_invalidate_range_start(); > 22.316 us | __mmu_notifier_invalidate_range_start(); > ... > > After: > ... > 4.089 us | __mmu_notifier_invalidate_range_start(); > 4.096 us | __mmu_notifier_invalidate_range_start(); > 3.560 us | __mmu_notifier_invalidate_range_start(); > 3.376 us | __mmu_notifier_invalidate_range_start(); > 3.772 us | __mmu_notifier_invalidate_range_start(); > 3.353 us | __mmu_notifier_invalidate_range_start(); > 3.332 us | __mmu_notifier_invalidate_range_start(); > 3.332 us | __mmu_notifier_invalidate_range_start(); > 3.332 us | __mmu_notifier_invalidate_range_start(); > 3.337 us | __mmu_notifier_invalidate_range_start(); > ...
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