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KVM: x86/mmu: Drop kvm_page_fault.hva, i.e. don't track intermediate hva

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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 <alex.bennee@linaro.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20241010182427.1434605-18-seanjc@google.com>
This commit is contained in:
Sean Christopherson
2024-10-10 11:23:19 -07:00
committed by Paolo Bonzini
parent 6769d1bcd3
commit 084ecf95a0
2 changed files with 2 additions and 5 deletions
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5
arch/x86/kvm/mmu/mmu.c
View File

@@ -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;
}

2
arch/x86/kvm/mmu/mmu_internal.h
View File

@@ -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;