Commit c77fb9dc authored by Xiantao Zhang's avatar Xiantao Zhang Committed by Avi Kivity
Browse files

KVM: Change is_mmio_pfn to kvm_is_mmio_pfn, and make it common for all archs 



Add a kvm_ prefix to avoid polluting kernel's name space.

Signed-off-by: default avatarXiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 8a98f664

include/linux/kvm_host.h

+2 −0
Original line number Diff line number Diff line
@@ -288,6 +288,8 @@ int kvm_cpu_has_interrupt(struct kvm_vcpu *v); 
int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);

void kvm_vcpu_kick(struct kvm_vcpu *vcpu);



int kvm_is_mmio_pfn(pfn_t pfn);



struct kvm_irq_ack_notifier {

	struct hlist_node link;

	unsigned gsi;

virt/kvm/kvm_main.c

+8 −8
Original line number Diff line number Diff line
@@ -316,7 +316,7 @@ static inline int valid_vcpu(int n) 
	return likely(n >= 0 && n < KVM_MAX_VCPUS);

}



static inline int is_mmio_pfn(pfn_t pfn)

inline int kvm_is_mmio_pfn(pfn_t pfn)

{

	if (pfn_valid(pfn))

		return PageReserved(pfn_to_page(pfn));
@@ -994,7 +994,7 @@ pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn) 


		pfn = ((addr - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;

		up_read(&current->mm->mmap_sem);

		BUG_ON(!is_mmio_pfn(pfn));

		BUG_ON(!kvm_is_mmio_pfn(pfn));

	} else

		pfn = page_to_pfn(page[0]);
@@ -1008,10 +1008,10 @@ struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn) 
	pfn_t pfn;



	pfn = gfn_to_pfn(kvm, gfn);

	if (!is_mmio_pfn(pfn))

	if (!kvm_is_mmio_pfn(pfn))

		return pfn_to_page(pfn);



	WARN_ON(is_mmio_pfn(pfn));

	WARN_ON(kvm_is_mmio_pfn(pfn));



	get_page(bad_page);

	return bad_page;
@@ -1027,7 +1027,7 @@ EXPORT_SYMBOL_GPL(kvm_release_page_clean); 


void kvm_release_pfn_clean(pfn_t pfn)

{

	if (!is_mmio_pfn(pfn))

	if (!kvm_is_mmio_pfn(pfn))

		put_page(pfn_to_page(pfn));

}

EXPORT_SYMBOL_GPL(kvm_release_pfn_clean);
@@ -1053,7 +1053,7 @@ EXPORT_SYMBOL_GPL(kvm_set_page_dirty); 


void kvm_set_pfn_dirty(pfn_t pfn)

{

	if (!is_mmio_pfn(pfn)) {

	if (!kvm_is_mmio_pfn(pfn)) {

		struct page *page = pfn_to_page(pfn);

		if (!PageReserved(page))

			SetPageDirty(page);
@@ -1063,14 +1063,14 @@ EXPORT_SYMBOL_GPL(kvm_set_pfn_dirty); 


void kvm_set_pfn_accessed(pfn_t pfn)

{

	if (!is_mmio_pfn(pfn))

	if (!kvm_is_mmio_pfn(pfn))

		mark_page_accessed(pfn_to_page(pfn));

}

EXPORT_SYMBOL_GPL(kvm_set_pfn_accessed);



void kvm_get_pfn(pfn_t pfn)

{

	if (!is_mmio_pfn(pfn))

	if (!kvm_is_mmio_pfn(pfn))

		get_page(pfn_to_page(pfn));

}

EXPORT_SYMBOL_GPL(kvm_get_pfn);