KVM: x86/mmu: introduce struct kvm_pagewalk

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In preparation for separating walking and building of page tables,
introduce a dummy struct kvm_pagewalk and pass it around instead of
its containing kvm_mmu to functions that do not build the page tables.
Outermost functions retrieve the mmu via container_of, while internal
functions can pass around the struct kvm_pagewalk pointer.

x86.c is still mostly oblivious to the existence of struct kvm_pagewalk,
with are only a couple exceptions for now, but the plan is for it to
use struct kvm_pagewalk whenever dealing with guest page tables and have
only limited knowledge of struct kvm_mmu.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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This commit is contained in:

Paolo Bonzini 2026-05-10 18:39:18 +02:00

parent 9a82ec076e

commit ac889bdd23

7 changed files with 46 additions and 31 deletions

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7

arch/x86/include/asm/kvm_host.h

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2

arch/x86/kvm/hyperv.c

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19

arch/x86/kvm/mmu.h

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2

arch/x86/kvm/mmu/mmu.c

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43

arch/x86/kvm/mmu/paging_tmpl.h

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2

arch/x86/kvm/regs.c

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2

arch/x86/kvm/x86.c

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