path: root/arch/powerpc/kvm/book3s_hv_rm_mmu.c
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authorPaul Mackerras <paulus@samba.org>2011-12-12 12:28:55 +0000
committerAvi Kivity <avi@redhat.com>2012-03-05 14:52:36 +0200
commit93e602490c1da83162a8b6ba86b4b48a7a0f0c9e (patch)
tree7dd0407af03944cffcfdb7798d0ea6155156700e /arch/powerpc/kvm/book3s_hv_rm_mmu.c
parentb2b2f16508de10bb1863bdd4ec1fa212111df5b4 (diff)
KVM: PPC: Add an interface for pinning guest pages in Book3s HV guests
This adds two new functions, kvmppc_pin_guest_page() and kvmppc_unpin_guest_page(), and uses them to pin the guest pages where the guest has registered areas of memory for the hypervisor to update, (i.e. the per-cpu virtual processor areas, SLB shadow buffers and dispatch trace logs) and then unpin them when they are no longer required. Although it is not strictly necessary to pin the pages at this point, since all guest pages are already pinned, later commits in this series will mean that guest pages aren't all pinned. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv_rm_mmu.c')
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