forked from Minki/linux
KVM: MMU: Mark sp mmio cached when creating mmio spte
This will be used not to zap unrelated mmu pages when creating/moving a memory slot later. Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Signed-off-by: Gleb Natapov <gleb@redhat.com>
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@ -230,6 +230,7 @@ struct kvm_mmu_page {
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#endif
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int write_flooding_count;
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bool mmio_cached;
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};
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struct kvm_pio_request {
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@ -199,8 +199,11 @@ EXPORT_SYMBOL_GPL(kvm_mmu_set_mmio_spte_mask);
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static void mark_mmio_spte(u64 *sptep, u64 gfn, unsigned access)
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{
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struct kvm_mmu_page *sp = page_header(__pa(sptep));
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access &= ACC_WRITE_MASK | ACC_USER_MASK;
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sp->mmio_cached = true;
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trace_mark_mmio_spte(sptep, gfn, access);
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mmu_spte_set(sptep, shadow_mmio_mask | access | gfn << PAGE_SHIFT);
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}
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