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Define an enum kvm_tdp_mmu_root_types to specify the KVM MMU root type [1] so that the iterator on the root page table can consistently filter the root page table type instead of only_valid. TDX KVM will operate on KVM page tables with specified types. Shared page table, private page table, or both. Introduce an enum instead of bool only_valid so that we can easily enhance page table types applicable to shared, private, or both in addition to valid or not. Replace only_valid=false with KVM_ANY_ROOTS and only_valid=true with KVM_ANY_VALID_ROOTS. Use KVM_ANY_ROOTS and KVM_ANY_VALID_ROOTS to wrap KVM_VALID_ROOTS to avoid further code churn when direct vs mirror root concepts are introduced in future patches. Link: https://lore.kernel.org/kvm/ZivazWQw1oCU8VBC@google.com/ [1] Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com> Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com> Message-ID: <20240718211230.1492011-11-rick.p.edgecombe@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.