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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 /arch/x86/kvm/paging_tmpl.h
parent19bf7f8ac3f8131100027281c495dbbe00cd5ae0 (diff)
downloadop-kernel-dev-81c52c56e2b43589091ee29038bcf793d3f184ab.zip
op-kernel-dev-81c52c56e2b43589091ee29038bcf793d3f184ab.tar.gz
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 'arch/x86/kvm/paging_tmpl.h')
-rw-r--r--arch/x86/kvm/paging_tmpl.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index d17deca..891eb6d 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -323,7 +323,7 @@ FNAME(prefetch_gpte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
protect_clean_gpte(&pte_access, gpte);
pfn = pte_prefetch_gfn_to_pfn(vcpu, gfn,
no_dirty_log && (pte_access & ACC_WRITE_MASK));
- if (is_invalid_pfn(pfn))
+ if (is_error_pfn(pfn))
return false;
/*
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