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KVM: MMU: Add drop_large_spte() helper 

To clarify spte fetching code, move large spte handling into a helper.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Avi Kivity 2010-07-13 14:27:06 +03:00
parent 121eee97a7
commit a3aa51cfaa
2 changed files with 9 additions and 4 deletions
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8
arch/x86/kvm/mmu.c
View File

@ -1492,6 +1492,14 @@ static void link_shadow_page(u64 *sptep, struct kvm_mmu_page *sp)
__set_spte(sptep, spte);
}
static void drop_large_spte(struct kvm_vcpu *vcpu, u64 *sptep)
{
if (is_large_pte(*sptep)) {
drop_spte(vcpu->kvm, sptep, shadow_trap_nonpresent_pte);
kvm_flush_remote_tlbs(vcpu->kvm);
}
}
static void kvm_mmu_page_unlink_children(struct kvm *kvm,
struct kvm_mmu_page *sp)
{

5
arch/x86/kvm/paging_tmpl.h
View File

@ -360,10 +360,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
kvm_flush_remote_tlbs(vcpu->kvm);
}
if (is_large_pte(*sptep)) {
drop_spte(vcpu->kvm, sptep, shadow_trap_nonpresent_pte);
kvm_flush_remote_tlbs(vcpu->kvm);
}
drop_large_spte(vcpu, sptep);
if (level <= gw->level) {
direct = 1;