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KVM: MMU: remove global page optimization logic

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Complexity to fix it not worthwhile the gains, as discussed
in http://article.gmane.org/gmane.comp.emulators.kvm.devel/28649.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Marcelo Tosatti
2009-04-05 14:54:47 -03:00
committed by Avi Kivity
parent 2f8b9ee14e
commit c2d0ee46e6
4 changed files with 8 additions and 56 deletions
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6
arch/x86/kvm/paging_tmpl.h
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@@ -268,8 +268,7 @@ static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *page,
kvm_get_pfn(pfn);
mmu_set_spte(vcpu, spte, page->role.access, pte_access, 0, 0,
gpte & PT_DIRTY_MASK, NULL, largepage,
gpte & PT_GLOBAL_MASK, gpte_to_gfn(gpte),
pfn, true);
gpte_to_gfn(gpte), pfn, true);
}
/*
@@ -303,7 +302,6 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
user_fault, write_fault,
gw->ptes[gw->level-1] & PT_DIRTY_MASK,
ptwrite, largepage,
gw->ptes[gw->level-1] & PT_GLOBAL_MASK,
gw->gfn, pfn, false);
break;
}
@@ -592,7 +590,7 @@ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
nr_present++;
pte_access = sp->role.access & FNAME(gpte_access)(vcpu, gpte);
set_spte(vcpu, &sp->spt[i], pte_access, 0, 0,
is_dirty_pte(gpte), 0, gpte & PT_GLOBAL_MASK, gfn,
is_dirty_pte(gpte), 0, gfn,
spte_to_pfn(sp->spt[i]), true, false);
}