From 812f30b234539ccb0139f92dfdbec1e8158cf535 Mon Sep 17 00:00:00 2001 From: Bandan Das Date: Tue, 12 Jul 2016 18:18:50 -0400 Subject: [PATCH] kvm: mmu: remove is_present_gpte() We have two versions of the above function. To prevent confusion and bugs in the future, remove the non-FNAME version entirely and replace all calls with the actual check. Signed-off-by: Bandan Das Signed-off-by: Paolo Bonzini --- arch/x86/kvm/mmu.c | 2 +- arch/x86/kvm/mmu.h | 5 ----- arch/x86/kvm/paging_tmpl.h | 2 +- arch/x86/kvm/x86.c | 2 +- 4 files changed, 3 insertions(+), 8 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 55a20c0..6471f87 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3189,7 +3189,7 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu) MMU_WARN_ON(VALID_PAGE(root)); if (vcpu->arch.mmu.root_level == PT32E_ROOT_LEVEL) { pdptr = vcpu->arch.mmu.get_pdptr(vcpu, i); - if (!is_present_gpte(pdptr)) { + if (!(pdptr & PT_PRESENT_MASK)) { vcpu->arch.mmu.pae_root[i] = 0; continue; } diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h index 66b33b9..ddc56e9 100644 --- a/arch/x86/kvm/mmu.h +++ b/arch/x86/kvm/mmu.h @@ -93,11 +93,6 @@ static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu) return kvm_mmu_load(vcpu); } -static inline int is_present_gpte(unsigned long pte) -{ - return pte & PT_PRESENT_MASK; -} - /* * Currently, we have two sorts of write-protection, a) the first one * write-protects guest page to sync the guest modification, b) another one is diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index bc019f7..fda5b64 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -131,7 +131,7 @@ static inline void FNAME(protect_clean_gpte)(unsigned *access, unsigned gpte) static inline int FNAME(is_present_gpte)(unsigned long pte) { #if PTTYPE != PTTYPE_EPT - return is_present_gpte(pte); + return pte & PT_PRESENT_MASK; #else return pte & 7; #endif diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 0cc6cf8..bb6e8bf 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -540,7 +540,7 @@ int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3) goto out; } for (i = 0; i < ARRAY_SIZE(pdpte); ++i) { - if (is_present_gpte(pdpte[i]) && + if ((pdpte[i] & PT_PRESENT_MASK) && (pdpte[i] & vcpu->arch.mmu.guest_rsvd_check.rsvd_bits_mask[0][2])) { ret = 0; -- 2.7.4