This is a revival of Isaku's patches from https://lore.kernel.org/kvm/cover.1618914692.git.isaku.yamahata@xxxxxxxxx/. The current kvm page fault handlers passes around many arguments to the functions. To simplify those arguments and local variables, introduce a data structure, struct kvm_page_fault, to hold those arguments and variables. struct kvm_page_fault is allocated on stack on the caller of kvm fault handler, kvm_mmu_do_page_fault(), and passed around. The patches were redone from scratch based on the suggested struct layout from the review (https://lore.kernel.org/kvm/YK65V++S2Kt1OLTu@xxxxxxxxxx/) and the subjects of Isaku's patches, so I kept authorship for myself and gave him a "Suggested-by" tag. The first two steps are unrelated cleanups that come in handy later on. Paolo Paolo Bonzini (16): KVM: MMU: pass unadulterated gpa to direct_page_fault KVM: x86: clamp host mapping level to max_level in kvm_mmu_max_mapping_level KVM: MMU: Introduce struct kvm_page_fault KVM: MMU: change mmu->page_fault() arguments to kvm_page_fault KVM: MMU: change direct_page_fault() arguments to kvm_page_fault KVM: MMU: change page_fault_handle_page_track() arguments to kvm_page_fault KVM: MMU: change try_async_pf() arguments to kvm_page_fault KVM: MMU: change handle_abnormal_pfn() arguments to kvm_page_fault KVM: MMU: change __direct_map() arguments to kvm_page_fault KVM: MMU: change FNAME(fetch)() arguments to kvm_page_fault KVM: MMU: change kvm_tdp_mmu_map() arguments to kvm_page_fault KVM: MMU: change tdp_mmu_map_handle_target_level() arguments to kvm_page_fault KVM: MMU: change fast_page_fault() arguments to kvm_page_fault KVM: MMU: change kvm_mmu_hugepage_adjust() arguments to kvm_page_fault KVM: MMU: change disallowed_hugepage_adjust() arguments to kvm_page_fault KVM: MMU: change tracepoints arguments to kvm_page_fault arch/x86/include/asm/kvm_host.h | 4 +- arch/x86/kvm/mmu.h | 81 ++++++++++- arch/x86/kvm/mmu/mmu.c | 241 ++++++++++++++------------------ arch/x86/kvm/mmu/mmu_internal.h | 13 +- arch/x86/kvm/mmu/mmutrace.h | 18 +-- arch/x86/kvm/mmu/paging_tmpl.h | 96 ++++++------- arch/x86/kvm/mmu/tdp_mmu.c | 49 +++---- arch/x86/kvm/mmu/tdp_mmu.h | 4 +- 8 files changed, 253 insertions(+), 253 deletions(-) -- 2.27.0
