From: Sean Christopherson Date: Thu, 10 Oct 2024 18:23:19 +0000 (-0700) Subject: KVM: x86/mmu: Drop kvm_page_fault.hva, i.e. don't track intermediate hva X-Git-Tag: v6.13-rc1~97^2~17^2~68 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=084ecf95a086b01ce80c8732ff9b1d593077d0a8;p=thirdparty%2Fkernel%2Flinux.git KVM: x86/mmu: Drop kvm_page_fault.hva, i.e. don't track intermediate hva Remove kvm_page_fault.hva as it is never read, only written. This will allow removing the @hva param from __gfn_to_pfn_memslot(). Tested-by: Alex Bennée Signed-off-by: Sean Christopherson Tested-by: Dmitry Osipenko Signed-off-by: Paolo Bonzini Message-ID: <20241010182427.1434605-18-seanjc@google.com> --- diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index cae81209f9ed1..d4e21071b78e9 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -3301,7 +3301,6 @@ static int kvm_handle_noslot_fault(struct kvm_vcpu *vcpu, fault->slot = NULL; fault->pfn = KVM_PFN_NOSLOT; fault->map_writable = false; - fault->hva = KVM_HVA_ERR_BAD; /* * If MMIO caching is disabled, emulate immediately without @@ -4386,7 +4385,7 @@ static int __kvm_faultin_pfn(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault fault->pfn = __gfn_to_pfn_memslot(fault->slot, fault->gfn, false, true, fault->write, &fault->map_writable, - &fault->hva); + NULL); /* * If resolving the page failed because I/O is needed to fault-in the @@ -4415,7 +4414,7 @@ static int __kvm_faultin_pfn(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault */ fault->pfn = __gfn_to_pfn_memslot(fault->slot, fault->gfn, true, true, fault->write, &fault->map_writable, - &fault->hva); + NULL); return RET_PF_CONTINUE; } diff --git a/arch/x86/kvm/mmu/mmu_internal.h b/arch/x86/kvm/mmu/mmu_internal.h index 4da83544c4e1b..633aedec3c2e3 100644 --- a/arch/x86/kvm/mmu/mmu_internal.h +++ b/arch/x86/kvm/mmu/mmu_internal.h @@ -238,7 +238,6 @@ struct kvm_page_fault { /* Outputs of kvm_faultin_pfn. */ unsigned long mmu_seq; kvm_pfn_t pfn; - hva_t hva; bool map_writable; /* @@ -313,7 +312,6 @@ static inline int kvm_mmu_do_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, .is_private = err & PFERR_PRIVATE_ACCESS, .pfn = KVM_PFN_ERR_FAULT, - .hva = KVM_HVA_ERR_BAD, }; int r;