On 04/25/2010 10:02 AM, Xiao Guangrong wrote:
Let invlpg not depends on kvm_mmu_pte_write path, later patch will need
this feature
if (mmu_topup_memory_caches(vcpu))
return;
- kvm_mmu_pte_write(vcpu, pte_gpa, NULL, sizeof(pt_element_t), 0);
+
+ kvm_read_guest_page(vcpu->kvm, gfn,&gentry, offset,
+ sizeof(pt_element_t));
+
Need error check.
+ mmu_guess_page_from_pte_write(vcpu, gfn_to_gpa(gfn) + offset, gentry);
This needs an undo operation to drop the page if we don't update_pte();
see the end of kvm_mmu_pte_write(). That needs to go into a helper to
avoid duplication.
+ spin_lock(&vcpu->kvm->mmu_lock);
+ if (atomic_read(&vcpu->kvm->arch.invlpg_counter) == invlpg_counter&&
+ sp->role.level == PT_PAGE_TABLE_LEVEL) {
+ ++vcpu->kvm->stat.mmu_pte_updated;
+ FNAME(update_pte)(vcpu, sp, sptep,&gentry);
+ }
+
+ spin_unlock(&vcpu->kvm->mmu_lock);
}
static gpa_t FNAME(gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t vaddr, u32 access,
--
error compiling committee.c: too many arguments to function
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