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Subject[PATCH 00/16] KVM: x86: pass arguments on the page fault path via struct kvm_page_fault
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This is a revival of Isaku's patches from
https://lore.kernel.org/kvm/cover.1618914692.git.isaku.yamahata@intel.com/.
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@google.com/)
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

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