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KVM: split kvm_arch_flush_shadow

Browse source 
Introducing kvm_arch_flush_shadow_memslot, to invalidate the
translations of a single memory slot.

Signed-off-by: Marcelo Tosatti <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
This commit is contained in:
Marcelo Tosatti 2012-08-24 15:54:57 -03:00 • committed by Avi Kivity
commit 2df72e9bc4
6 changed files with 34 additions and 9 deletions
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8
virt/kvm/kvm_main.c
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@ -408,7 +408,7 @@ static void kvm_mmu_notifier_release(struct mmu_notifier *mn,
int idx;
idx = srcu_read_lock(&kvm->srcu);
kvm_arch_flush_shadow(kvm);
kvm_arch_flush_shadow_all(kvm);
srcu_read_unlock(&kvm->srcu, idx);
}
@ -582,7 +582,7 @@ static void kvm_destroy_vm(struct kvm *kvm)
#if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER)
mmu_notifier_unregister(&kvm->mmu_notifier, kvm->mm);
#else
kvm_arch_flush_shadow(kvm);
kvm_arch_flush_shadow_all(kvm);
#endif
kvm_arch_destroy_vm(kvm);
kvm_free_physmem(kvm);
@ -814,7 +814,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
* - gfn_to_hva (kvm_read_guest, gfn_to_pfn)
* - kvm_is_visible_gfn (mmu_check_roots)
*/
kvm_arch_flush_shadow(kvm);
kvm_arch_flush_shadow_memslot(kvm, slot);
kfree(old_memslots);
}
@ -854,7 +854,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
* mmio sptes.
*/
if (npages && old.base_gfn != mem->guest_phys_addr >> PAGE_SHIFT)
kvm_arch_flush_shadow(kvm);
kvm_arch_flush_shadow_all(kvm);
kvm_free_physmem_slot(&old, &new);
kfree(old_memslots);