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Commit 2df72e9b authored by Marcelo Tosatti's avatar Marcelo Tosatti Committed by Avi Kivity
Browse files

KVM: split kvm_arch_flush_shadow 



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

Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 09941fbb

arch/ia64/kvm/kvm-ia64.c

+7 −1
Original line number Diff line number Diff line
@@ -1613,11 +1613,17 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, 
	return;

}



void kvm_arch_flush_shadow(struct kvm *kvm)

void kvm_arch_flush_shadow_all(struct kvm *kvm)

{

	kvm_flush_remote_tlbs(kvm);

}



void kvm_arch_flush_shadow_memslot(struct kvm *kvm,

				   struct kvm_memory_slot *slot)

{

	kvm_arch_flush_shadow_all();

}



long kvm_arch_dev_ioctl(struct file *filp,

			unsigned int ioctl, unsigned long arg)

{

arch/powerpc/kvm/powerpc.c

+5 −1
Original line number Diff line number Diff line
@@ -334,8 +334,12 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, 
	kvmppc_core_commit_memory_region(kvm, mem);

}



void kvm_arch_flush_shadow_all(struct kvm *kvm)

{

}



void kvm_arch_flush_shadow(struct kvm *kvm)

void kvm_arch_flush_shadow_memslot(struct kvm *kvm,

				   struct kvm_memory_slot *slot)

{

}

arch/s390/kvm/kvm-s390.c

+6 −1
Original line number Diff line number Diff line
@@ -969,7 +969,12 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, 
	return;

}



void kvm_arch_flush_shadow(struct kvm *kvm)

void kvm_arch_flush_shadow_all(struct kvm *kvm)

{

}



void kvm_arch_flush_shadow_memslot(struct kvm *kvm,

				   struct kvm_memory_slot *slot)

{

}

arch/x86/kvm/x86.c

+7 −1
Original line number Diff line number Diff line
@@ -6447,12 +6447,18 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, 
	spin_unlock(&kvm->mmu_lock);

}



void kvm_arch_flush_shadow(struct kvm *kvm)

void kvm_arch_flush_shadow_all(struct kvm *kvm)

{

	kvm_mmu_zap_all(kvm);

	kvm_reload_remote_mmus(kvm);

}



void kvm_arch_flush_shadow_memslot(struct kvm *kvm,

				   struct kvm_memory_slot *slot)

{

	kvm_arch_flush_shadow_all(kvm);

}



int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)

{

	return (vcpu->arch.mp_state == KVM_MP_STATE_RUNNABLE &&

include/linux/kvm_host.h

+5 −1
Original line number Diff line number Diff line
@@ -458,7 +458,11 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, 
				int user_alloc);

bool kvm_largepages_enabled(void);

void kvm_disable_largepages(void);

void kvm_arch_flush_shadow(struct kvm *kvm);

/* flush all memory translations */

void kvm_arch_flush_shadow_all(struct kvm *kvm);

/* flush memory translations pointing to 'slot' */

void kvm_arch_flush_shadow_memslot(struct kvm *kvm,

				   struct kvm_memory_slot *slot);



int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages,

			    int nr_pages);