The following two patches fixup some missing memory handling in KVM/arm64. The first patch supports 48 bit virtual address space which involves supporting a different number of levels of page tables in the host kernel and the stage-2 page tables. This patch removes "depends on BROKEN" from CONFIG_ARM64_VA_BITS_48 which was introduced due to the KVM breakage. The second patch ensures userspace cannot create memory slots with too large IPA space given VTCR_EL2.T0SZ = 24. The following host configurations have been tested with KVM on APM Mustang: 1) 4KB + 39 bits VA space 2) 4KB + 48 bits VA space Due to the 64K/GICV issue, I couldn't test a 64K setup on Mutang. If anyone can test this on Seattle, it would be much appreciated. Tested on TC2 for regressions. Christoffer Dall (2): arm64: KVM: Implement 48 VA support for KVM EL2 and Stage-2 arm/arm64: KVM: Ensure memslots are within KVM_PHYS_SIZE arch/arm/include/asm/kvm_mmu.h | 23 +++++++ arch/arm/kvm/arm.c | 2 +- arch/arm/kvm/mmu.c | 119 +++++++++++++++++++++++++++------- arch/arm64/Kconfig | 1 - arch/arm64/include/asm/kvm_mmu.h | 136 ++++++++++++++++++++++++++++++++++++--- 5 files changed, 247 insertions(+), 34 deletions(-) -- 2.0.0 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
