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KVM: x86/mmu: Move definition of make_mmu_pages_available() up 

Move make_mmu_pages_available() above its first user to put it closer
to related code and eliminate a forward declaration.

No functional change intended.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2019-12-06 15:57:15 -08:00 committed by Paolo Bonzini
parent 736c291c9f
commit ba7888dde6
1 changed files with 20 additions and 21 deletions
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41
arch/x86/kvm/mmu/mmu.c
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@ -2903,6 +2903,26 @@ static bool prepare_zap_oldest_mmu_page(struct kvm *kvm,
return kvm_mmu_prepare_zap_page(kvm, sp, invalid_list);
}
static int make_mmu_pages_available(struct kvm_vcpu *vcpu)
{
LIST_HEAD(invalid_list);
if (likely(kvm_mmu_available_pages(vcpu->kvm) >= KVM_MIN_FREE_MMU_PAGES))
return 0;
while (kvm_mmu_available_pages(vcpu->kvm) < KVM_REFILL_PAGES) {
if (!prepare_zap_oldest_mmu_page(vcpu->kvm, &invalid_list))
break;
++vcpu->kvm->stat.mmu_recycled;
}
kvm_mmu_commit_zap_page(vcpu->kvm, &invalid_list);
if (!kvm_mmu_available_pages(vcpu->kvm))
return -ENOSPC;
return 0;
}
/*
* Changing the number of mmu pages allocated to the vm
* Note: if goal_nr_mmu_pages is too small, you will get dead lock
@ -3640,7 +3660,6 @@ static bool fast_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, int level,
static bool try_async_pf(struct kvm_vcpu *vcpu, bool prefault, gfn_t gfn,
gpa_t cr2_or_gpa, kvm_pfn_t *pfn, bool write,
bool *writable);
static int make_mmu_pages_available(struct kvm_vcpu *vcpu);
static int nonpaging_map(struct kvm_vcpu *vcpu, gpa_t gpa, u32 error_code,
gfn_t gfn, bool prefault)
@ -5511,26 +5530,6 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
}
EXPORT_SYMBOL_GPL(kvm_mmu_unprotect_page_virt);
static int make_mmu_pages_available(struct kvm_vcpu *vcpu)
{
LIST_HEAD(invalid_list);
if (likely(kvm_mmu_available_pages(vcpu->kvm) >= KVM_MIN_FREE_MMU_PAGES))
return 0;
while (kvm_mmu_available_pages(vcpu->kvm) < KVM_REFILL_PAGES) {
if (!prepare_zap_oldest_mmu_page(vcpu->kvm, &invalid_list))
break;
++vcpu->kvm->stat.mmu_recycled;
}
kvm_mmu_commit_zap_page(vcpu->kvm, &invalid_list);
if (!kvm_mmu_available_pages(vcpu->kvm))
return -ENOSPC;
return 0;
}
int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, u64 error_code,
void *insn, int insn_len)
{