Hi, This patchset adds support for PUD hugepages at stage 2. This feature is useful on cores that have support for large sized TLB mappings (e.g., 1GB for 4K granule). Previous postings can be found at [0][1]. Support is added to code that is shared between arm and arm64. Dummy helpers for arm are provided as the port does not support PUD hugepage sizes. There is a small conflict with the series to add support for 52 bit IPA[2]. The patches have been functionally tested on an A57 based system. The patchset is based on v4.17-rc3 and incorporates feedback received on the previous version. Thanks, Punit Changes v2: * Create helper to check if the page should have exec permission [1/4] * Fix broken condition to detect THP hugepage [1/4] * Fix in-correct hunk resulting from a rebase [4/4] [0] https://www.spinics.net/lists/arm-kernel/msg628053.html [1] https://lkml.org/lkml/2018/4/20/566 [2] https://lwn.net/Articles/750176/ Punit Agrawal (4): KVM: arm/arm64: Share common code in user_mem_abort() KVM: arm/arm64: Introduce helpers to manupulate page table entries KVM: arm64: Support dirty page tracking for PUD hugepages KVM: arm64: Add support for PUD hugepages at stage 2 arch/arm/include/asm/kvm_mmu.h | 40 +++++++++ arch/arm64/include/asm/kvm_mmu.h | 30 +++++++ arch/arm64/include/asm/pgtable-hwdef.h | 4 + arch/arm64/include/asm/pgtable.h | 2 + virt/kvm/arm/mmu.c | 120 +++++++++++++++++-------- 5 files changed, 161 insertions(+), 35 deletions(-) -- 2.17.0 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
