KVM: PPC: Book3S HV: Use the hardware referenced bit for kvm_age_hva

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This uses the host view of the hardware R (referenced) bit to speed
up kvm_age_hva() and kvm_test_age_hva().  Instead of removing all
the relevant HPTEs in kvm_age_hva(), we now just reset their R bits
if set.  Also, kvm_test_age_hva() now scans the relevant HPTEs to
see if any of them have R set.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>

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Paul Mackerras 2011-12-15 02:02:47 +00:00 • committed by Avi Kivity

parent bad3b5075e

commit 5551489373

3 changed files with 91 additions and 11 deletions

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2

arch/powerpc/include/asm/kvm_book3s.h

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81

arch/powerpc/kvm/book3s_64_mmu_hv.c

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19

arch/powerpc/kvm/book3s_hv_rm_mmu.c

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