KVM: MMU: make spte_is_locklessly_modifiable() more clear
spte_is_locklessly_modifiable() checks that both SPTE_HOST_WRITEABLE and SPTE_MMU_WRITEABLE are present on spte. Make it more explicit. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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@ -448,7 +448,8 @@ static bool __check_direct_spte_mmio_pf(u64 spte)
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static bool spte_is_locklessly_modifiable(u64 spte)
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static bool spte_is_locklessly_modifiable(u64 spte)
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{
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{
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return !(~spte & (SPTE_HOST_WRITEABLE | SPTE_MMU_WRITEABLE));
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return (spte & (SPTE_HOST_WRITEABLE | SPTE_MMU_WRITEABLE)) ==
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(SPTE_HOST_WRITEABLE | SPTE_MMU_WRITEABLE);
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}
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}
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static bool spte_has_volatile_bits(u64 spte)
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static bool spte_has_volatile_bits(u64 spte)
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