KVM: x86/mmu: Explicitly disallow private accesses to emulated MMIO

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Explicitly detect and disallow private accesses to emulated MMIO in
kvm_handle_noslot_fault() instead of relying on kvm_faultin_pfn_private()
to perform the check.  This will allow the page fault path to go straight
to kvm_handle_noslot_fault() without bouncing through __kvm_faultin_pfn().

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-ID: <20240228024147.41573-12-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2024-02-27 18:41:42 -08:00 • committed by Paolo Bonzini

parent 5bd74f6eec

commit bde9f9d27e

1 changed files with 5 additions and 0 deletions

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arch/x86/kvm/mmu/mmu.c

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