Guest fails to boot when the memory is backed up by hugetlbfs regions, which correspond to contiguous PMDs or PTEs. For example, the guest fails to boot when its memory is backed up by 64KB hugetlbfs pages. The first two patches are sorts of cleanup, not introducing any logical changes. The last patch resolves the issue by fail the unsupported huge page sizes back to nearby one. Ideally, we teach the stage-2 page table to use contiguous mapping in this case, but the page-table walker doesn't it well and needs some sort of reworks and I will do that in the future. Gavin Shan (3): KVM: arm64: Check if 52-bits PA is enabled KVM: arm64: Don't map PUD huge page if it's not available KVM: arm64: Failback on unsupported huge page sizes arch/arm64/kvm/hyp/pgtable.c | 10 ++++++---- arch/arm64/kvm/mmu.c | 12 +++++++++++- 2 files changed, 17 insertions(+), 5 deletions(-) -- 2.23.0 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
