Move the basic operations for manipulating an rmap out of mmu.c, into their own files. This is the first step in a series of series to split the Shadow MMU out of mmu.c. Splitting the shadow MMU out results in about a 50% reduction in line count of mmu.c, from ~7K to ~3.5K. The rmap operations only represent about 10% of the Shadow MMU but are split out first becase the are relatively self-contained. This split may also help facilitate the addition of kUnit tests for rmap manipulation, especially the fiddly bit flag which diferentiates a direct pointer from a pte_list_desc. This effort is complimentary to David Matlack's proposal to refactor the TDP MMU into an arch-neutral implementation because it further clarifies the distinction between the Shadow MMU and TDP MMU within x86. This series contains no functional changes. It's just a direct movement of code from one file to another. Whether this rmap code should stay in its own file or get merged with the rest of the shadow MMU code as it is factored out is open for debate. Ben Gardon (7): KVM: x86/MMU: Move pte_list operations to rmap.c KVM: x86/MMU: Move rmap_iterator to rmap.h KVM: x86/MMU: Move gfn_to_rmap() to rmap.c KVM: x86/MMU: Move rmap_can_add() and rmap_remove() to rmap.c KVM: x86/MMU: Move the rmap walk iterator out of mmu.c KVM: x86/MMU: Move rmap zap operations to rmap.c KVM: x86/MMU: Move rmap_add() to rmap.c arch/x86/kvm/Makefile | 2 +- arch/x86/kvm/debugfs.c | 1 + arch/x86/kvm/mmu/mmu.c | 438 +------------------------------- arch/x86/kvm/mmu/mmu_internal.h | 9 +- arch/x86/kvm/mmu/rmap.c | 368 +++++++++++++++++++++++++++ arch/x86/kvm/mmu/rmap.h | 106 ++++++++ 6 files changed, 492 insertions(+), 432 deletions(-) create mode 100644 arch/x86/kvm/mmu/rmap.c create mode 100644 arch/x86/kvm/mmu/rmap.h -- 2.39.0.rc0.267.gcb52ba06e7-goog
