diff options
| author | Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> | 2012-10-16 20:10:59 +0800 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2012-10-29 20:31:04 -0200 |
| commit | 81c52c56e2b43589091ee29038bcf793d3f184ab (patch) | |
| tree | 763236629eb034e519db87d8568946883499a155 /arch/x86/kvm/paging_tmpl.h | |
| parent | 19bf7f8ac3f8131100027281c495dbbe00cd5ae0 (diff) | |
| download | op-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.h | 2 |
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; /* |
