KVM: introduce KVM_HVA_ERR_RO_BAD
In the later patch, it indicates failure when we try to get a writable hva from the readonly memslot Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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@ -82,11 +82,12 @@ static inline bool is_invalid_pfn(pfn_t pfn)
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return !is_noslot_pfn(pfn) && is_error_pfn(pfn);
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}
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#define KVM_HVA_ERR_BAD (PAGE_OFFSET)
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#define KVM_HVA_ERR_BAD (PAGE_OFFSET)
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#define KVM_HVA_ERR_RO_BAD (PAGE_OFFSET + PAGE_SIZE)
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static inline bool kvm_is_error_hva(unsigned long addr)
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{
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return addr == PAGE_OFFSET;
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return addr >= PAGE_OFFSET;
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}
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#define KVM_ERR_PTR_BAD_PAGE (ERR_PTR(-ENOENT))
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