From d143148383d0395539073dd6c2f25ddf6656bdcc Mon Sep 17 00:00:00 2001 From: Tiejun Chen Date: Mon, 1 Sep 2014 18:44:04 +0800 Subject: KVM: mmio: cleanup kvm_set_mmio_spte_mask Just reuse rsvd_bits() inside kvm_set_mmio_spte_mask() for slightly better code. Signed-off-by: Tiejun Chen Signed-off-by: Paolo Bonzini --- arch/x86/kvm/mmu.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/x86/kvm/mmu.h') diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h index b982112d2ca5..bde8ee725754 100644 --- a/arch/x86/kvm/mmu.h +++ b/arch/x86/kvm/mmu.h @@ -56,6 +56,11 @@ #define PFERR_RSVD_MASK (1U << PFERR_RSVD_BIT) #define PFERR_FETCH_MASK (1U << PFERR_FETCH_BIT) +static inline u64 rsvd_bits(int s, int e) +{ + return ((1ULL << (e - s + 1)) - 1) << s; +} + int kvm_mmu_get_spte_hierarchy(struct kvm_vcpu *vcpu, u64 addr, u64 sptes[4]); void kvm_mmu_set_mmio_spte_mask(u64 mmio_mask); -- cgit v1.2.3-58-ga151