Re: [PATCH v10 00/14] KVM: selftests: Add aarch64/page_fault_test

[Sean Christopherson <seanjc@google.com>]

On Mon, Oct 17, 2022, Ricardo Koller wrote:
> This series adds a new aarch64 selftest for testing stage 2 fault handling
> for various combinations of guest accesses (e.g., write, S1PTW), backing
> sources (e.g., anon), and types of faults (e.g., read on hugetlbfs with a
> hole, write on a readonly memslot). Each test tries a different combination
> and then checks that the access results in the right behavior (e.g., uffd
> faults with the right address and write/read flag). Some interesting
> combinations are:

...

> Ricardo Koller (14):
>   KVM: selftests: Add a userfaultfd library
>   KVM: selftests: aarch64: Add virt_get_pte_hva() library function
>   KVM: selftests: Add missing close and munmap in
>     __vm_mem_region_delete()
>   KVM: selftests: aarch64: Construct DEFAULT_MAIR_EL1 using sysreg.h
>     macros
>   tools: Copy bitfield.h from the kernel sources
>   KVM: selftests: Stash backing_src_type in struct userspace_mem_region
>   KVM: selftests: Add vm->memslots[] and enum kvm_mem_region_type
>   KVM: selftests: Fix alignment in virt_arch_pgd_alloc() and
>     vm_vaddr_alloc()
>   KVM: selftests: Use the right memslot for code, page-tables, and data
>     allocations
>   KVM: selftests: aarch64: Add aarch64/page_fault_test
>   KVM: selftests: aarch64: Add userfaultfd tests into page_fault_test
>   KVM: selftests: aarch64: Add dirty logging tests into page_fault_test
>   KVM: selftests: aarch64: Add readonly memslot tests into
>     page_fault_test
>   KVM: selftests: aarch64: Add mix of tests into page_fault_test

One alignment nit in the first patch, but definitely not worthy of a v11.  If it
gets fixed up when applying, yay.  If not, no big deal.
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