return ret;
kvm_vcpu_mark_page_dirty(vcpu, table_gfn);
- walker->ptes[level] = pte;
+ walker->ptes[level - 1] = pte;
}
return 0;
}
int r;
pfn_t pfn;
int level = PT_PAGE_TABLE_LEVEL;
- int force_pt_level;
+ bool force_pt_level = false;
unsigned long mmu_seq;
bool map_writable, is_self_change_mapping;
pgprintk("%s: addr %lx err %x\n", __func__, addr, error_code);
if (unlikely(error_code & PFERR_RSVD_MASK)) {
- r = handle_mmio_page_fault(vcpu, addr, error_code,
- mmu_is_nested(vcpu));
+ r = handle_mmio_page_fault(vcpu, addr, mmu_is_nested(vcpu));
if (likely(r != RET_MMIO_PF_INVALID))
return r;
is_self_change_mapping = FNAME(is_self_change_mapping)(vcpu,
&walker, user_fault, &vcpu->arch.write_fault_to_shadow_pgtable);
- if (walker.level >= PT_DIRECTORY_LEVEL)
- force_pt_level = mapping_level_dirty_bitmap(vcpu, walker.gfn)
- || is_self_change_mapping;
- else
- force_pt_level = 1;
- if (!force_pt_level) {
- level = min(walker.level, mapping_level(vcpu, walker.gfn));
- walker.gfn = walker.gfn & ~(KVM_PAGES_PER_HPAGE(level) - 1);
- }
+ if (walker.level >= PT_DIRECTORY_LEVEL && !is_self_change_mapping) {
+ level = mapping_level(vcpu, walker.gfn, &force_pt_level);
+ if (likely(!force_pt_level)) {
+ level = min(walker.level, level);
+ walker.gfn = walker.gfn & ~(KVM_PAGES_PER_HPAGE(level) - 1);
+ }
+ } else
+ force_pt_level = true;
mmu_seq = vcpu->kvm->mmu_notifier_seq;
smp_rmb();