diff options
Diffstat (limited to 'arch/loongarch/kvm/mmu.c')
| -rw-r--r-- | arch/loongarch/kvm/mmu.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/arch/loongarch/kvm/mmu.c b/arch/loongarch/kvm/mmu.c index a556cff35740..98883aa23ab8 100644 --- a/arch/loongarch/kvm/mmu.c +++ b/arch/loongarch/kvm/mmu.c @@ -494,38 +494,6 @@ bool kvm_unmap_gfn_range(struct kvm *kvm, struct kvm_gfn_range *range) range->end << PAGE_SHIFT, &ctx); } -bool kvm_set_spte_gfn(struct kvm *kvm, struct kvm_gfn_range *range) -{ - unsigned long prot_bits; - kvm_pte_t *ptep; - kvm_pfn_t pfn = pte_pfn(range->arg.pte); - gpa_t gpa = range->start << PAGE_SHIFT; - - ptep = kvm_populate_gpa(kvm, NULL, gpa, 0); - if (!ptep) - return false; - - /* Replacing an absent or old page doesn't need flushes */ - if (!kvm_pte_present(NULL, ptep) || !kvm_pte_young(*ptep)) { - kvm_set_pte(ptep, 0); - return false; - } - - /* Fill new pte if write protected or page migrated */ - prot_bits = _PAGE_PRESENT | __READABLE; - prot_bits |= _CACHE_MASK & pte_val(range->arg.pte); - - /* - * Set _PAGE_WRITE or _PAGE_DIRTY iff old and new pte both support - * _PAGE_WRITE for map_page_fast if next page write fault - * _PAGE_DIRTY since gpa has already recorded as dirty page - */ - prot_bits |= __WRITEABLE & *ptep & pte_val(range->arg.pte); - kvm_set_pte(ptep, kvm_pfn_pte(pfn, __pgprot(prot_bits))); - - return true; -} - bool kvm_age_gfn(struct kvm *kvm, struct kvm_gfn_range *range) { kvm_ptw_ctx ctx; |