KVM: x86/mmu: Refactor handling of forced 4k pages in page faults

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Refactor the page fault handlers and mapping_level() to track the max
allowed page level instead of only tracking if a 4k page is mandatory
due to one restriction or another.  This paves the way for cleanly
consolidating tdp_page_fault() and nonpaging_page_fault(), and for
eliminating a redundant check on mmu_gfn_lpage_is_disallowed().

No functional change intended.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2019-12-06 15:57:20 -08:00 • committed by Paolo Bonzini

parent f0f37e229c

commit 39ca1ecb78

2 changed files with 29 additions and 32 deletions

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45

arch/x86/kvm/mmu/mmu.c

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16

arch/x86/kvm/mmu/paging_tmpl.h

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