KVM: MMU: mark page dirty in make_spte

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This simplifies set_spte, which we want to remove, and unifies code
between the shadow MMU and the TDP MMU.  The warning will be added
back later to make_spte as well.

There is a small disadvantage in the TDP MMU; it may unnecessarily mark
a page as dirty twice if two vCPUs end up mapping the same page twice.
However, this is a very small cost for a case that is already rare.

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

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Paolo Bonzini 2021-09-24 04:52:23 -04:00

parent 68be1306ca

commit bcc4f2bc50

3 changed files with 4 additions and 23 deletions

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3

arch/x86/kvm/mmu/mmu.c

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3

arch/x86/kvm/mmu/spte.c

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21

arch/x86/kvm/mmu/tdp_mmu.c

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