Hi All, This v6 patchset supports 4 levels of tranlsation tables for ARM64. Firstly, the patchset introduces virtual address space size and translation level options as taking account into the comment from Catalin Marinas: http://www.spinics.net/linux/lists/arm-kernel/msg319552.html Then, it implements 4 levels of translation tables for native. A dynamic VTTBR_X configuration is added before implementing 4 levels for both HYP and stage2 sides. All ARMv8 and ARMv7 related changes are validated with FastModels+kvmtool and A15+QEMU, respectively. Changes since v1: - fixed unmatched data types as per Steve's comment - removed unnecessary #ifdef in arch/arm64/mm/* as per Steve's comment - revised create_pgd_entry to deal with PUD entry as per Steve's comment - introduced a macro for initial memblock limit as per Steve's comment - dropped "Fix line length exceeding 80 characters" patch as per Marc's comment - removed unnecessary #ifdef in arch/arm/kvm/mmu.c as per Marc's comment - added a macro for a number of objects of as per Marc's comment Changes since v2: - revised some macros in a generic way as per Marc's comment - added a 2 level option for kvm mmu cache allocation as per Marc's comment Changes since v3: - added #ifdef to decide swapper and idmap size as per Steve's comment - introduced Steve's create_pgd_entry Changes since v4: - hided translation level options from menuconfig as per Catalin's comment - dropped some printk changes as per Mitchel's comment - squashed VA_BITS related patches into a single patch Changes since v5: - added dynamic VTTBR_X configuration logic - removed a redundant logic in stage2_set_pte as per Christoffer's comment - added comments for create_pud_entry as per Christoffer and Steve's comment - fixed typos in 4 level descriptions as per Christoffer's comment - revised arm64 Kconfig help message as per Christoffer's comment - rebased on top of for-next/core branch of arm64/linux.git Jungseok Lee (7): arm64: Use pr_* instead of printk arm64: Introduce VA_BITS and translation level options arm64: Add a description on 48-bit address space with 4KB pages arm64: Add 4 levels of page tables definition with 4KB pages arm64: mm: Implement 4 levels of translation tables arm64: KVM: Set physical address size related factors in runtime arm64: KVM: Implement 4 levels of translation tables for HYP and stage2 Documentation/arm64/memory.txt | 59 +++++++++++++--- arch/arm/include/asm/kvm_mmu.h | 10 +++ arch/arm/kvm/arm.c | 90 ++++++++++++++++++++++++- arch/arm/kvm/mmu.c | 77 ++++++++++++++++++--- arch/arm64/Kconfig | 53 ++++++++++++++- arch/arm64/include/asm/kvm_arm.h | 29 ++++---- arch/arm64/include/asm/kvm_mmu.h | 12 ++++ arch/arm64/include/asm/memblock.h | 6 ++ arch/arm64/include/asm/memory.h | 6 +- arch/arm64/include/asm/page.h | 6 +- arch/arm64/include/asm/pgalloc.h | 24 ++++++- arch/arm64/include/asm/pgtable-4level-hwdef.h | 50 ++++++++++++++ arch/arm64/include/asm/pgtable-4level-types.h | 71 +++++++++++++++++++ arch/arm64/include/asm/pgtable-hwdef.h | 8 ++- arch/arm64/include/asm/pgtable.h | 53 +++++++++++++-- arch/arm64/include/asm/tlb.h | 11 ++- arch/arm64/kernel/head.S | 54 ++++++++++++--- arch/arm64/kernel/traps.c | 13 ++-- arch/arm64/kvm/hyp-init.S | 20 ++++-- arch/arm64/mm/fault.c | 1 + arch/arm64/mm/mmu.c | 16 +++-- 21 files changed, 592 insertions(+), 77 deletions(-) create mode 100644 arch/arm64/include/asm/pgtable-4level-hwdef.h create mode 100644 arch/arm64/include/asm/pgtable-4level-types.h -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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