path: root/virt/kvm/iommu.c
diff options
authorXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>2012-10-16 20:10:59 +0800
committerMarcelo Tosatti <mtosatti@redhat.com>2012-10-29 20:31:04 -0200
commit81c52c56e2b43589091ee29038bcf793d3f184ab (patch)
tree763236629eb034e519db87d8568946883499a155 /virt/kvm/iommu.c
parent19bf7f8ac3f8131100027281c495dbbe00cd5ae0 (diff)
KVM: do not treat noslot pfn as a error pfn
This patch filters noslot pfn out from error pfns based on Marcelo comment: noslot pfn is not a error pfn After this patch, - is_noslot_pfn indicates that the gfn is not in slot - is_error_pfn indicates that the gfn is in slot but the error is occurred when translate the gfn to pfn - is_error_noslot_pfn indicates that the pfn either it is error pfns or it is noslot pfn And is_invalid_pfn can be removed, it makes the code more clean Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt/kvm/iommu.c')
1 files changed, 2 insertions, 2 deletions
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index 18e1e30019e3..4a340cb23013 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -52,7 +52,7 @@ static pfn_t kvm_pin_pages(struct kvm_memory_slot *slot, gfn_t gfn,
end_gfn = gfn + (size >> PAGE_SHIFT);
gfn += 1;
- if (is_error_pfn(pfn))
+ if (is_error_noslot_pfn(pfn))
return pfn;
while (gfn < end_gfn)
@@ -106,7 +106,7 @@ int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot)
* important because we unmap and unpin in 4kb steps later.
pfn = kvm_pin_pages(slot, gfn, page_size);
- if (is_error_pfn(pfn)) {
+ if (is_error_noslot_pfn(pfn)) {
gfn += 1;

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