This patchseries starts moving some of the gmap logic into KVM itself, going towards the final goal of completely removing gmap from the non-kvm memory management code. Aside from just moving some code from mm/gmap into kvm, this series also starts using __kvm_faultin_pfn() to fault-in pages as needed. But more importantly, this series removes almost all uses of page->index (and all uses of page->lru) from the s390 KVM code. The only remaining use is for the vsie pages, but that has already been taken care of by David in another series. Unfortunately the mix of hastiness and holidays means that this series is a little bit all over the place, and not as complete as I would have liked to. I'm posting it now so to try to speed up the removal of page->index, hopefully I will be able to post another short series before the upcoming merge window closes. Claudio Imbrenda (13): KVM: s390: wrapper for KVM_BUG KVM: s390: fake memslots for ucontrol VMs KVM: s390: use __kvm_faultin_pfn() KVM: s390: move pv gmap functions into kvm KVM: s390: get rid of gmap_fault() KVM: s390: get rid of gmap_translate() KVM: s390: move some gmap shadowing functions away from mm/gmap.c KVM: s390: stop using page->index for non-shadow gmaps KVM: s390: stop using lists to keep track of used dat tables KVM: s390: move gmap_shadow_pgt_lookup() into kvm KVM: s390: remove useless page->index usage KVM: s390: move PGSTE softbits KVM: s390: remove the last user of page->index arch/s390/include/asm/gmap.h | 16 +- arch/s390/include/asm/pgtable.h | 21 +- arch/s390/include/asm/uv.h | 7 +- arch/s390/kernel/uv.c | 293 +++------------ arch/s390/kvm/Makefile | 2 +- arch/s390/kvm/gaccess.c | 42 +++ arch/s390/kvm/gmap.c | 183 ++++++++++ arch/s390/kvm/gmap.h | 19 + arch/s390/kvm/intercept.c | 5 +- arch/s390/kvm/interrupt.c | 19 +- arch/s390/kvm/kvm-s390.c | 229 ++++++++++-- arch/s390/kvm/kvm-s390.h | 18 + arch/s390/kvm/pv.c | 1 + arch/s390/kvm/vsie.c | 137 +++++++ arch/s390/mm/gmap.c | 630 ++++++-------------------------- 15 files changed, 786 insertions(+), 836 deletions(-) create mode 100644 arch/s390/kvm/gmap.c create mode 100644 arch/s390/kvm/gmap.h -- 2.47.1
