KVM: x86/mmu: pull struct kvm_pagewalk out of struct kvm_mmu

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Replace kvm_mmu's w field with a pointer to an external instance of
struct kvm_pagewalk.  This is the first step towards using a single
kvm_pagewalk struct for all GVA walks, whether nested or not.

With this patch, non-MMU code basically does not use kvm_mmu anymore:
it does care about page walks, but it funnels (almost) all interactions
with the TLB to mmu.c.

kvm_mmu_invalidate_addr() still needs to go from kvm_pagewalk to kvm_mmu,
and it cannot anymore use container_of() to do it; the mapping is hardcoded
based on the provided kvm_pagewalk, since there are just three of them.

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

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This commit is contained in:

Paolo Bonzini 2026-05-11 08:40:05 -04:00

parent b99416dd99

commit 0a59a8b8a2

7 changed files with 88 additions and 75 deletions

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8

arch/x86/include/asm/kvm_host.h

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2

arch/x86/kvm/mmu.h

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113

arch/x86/kvm/mmu/mmu.c

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14

arch/x86/kvm/mmu/paging_tmpl.h

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11

arch/x86/kvm/svm/nested.c

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arch/x86/kvm/vmx/nested.c

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2

arch/x86/kvm/x86.c

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