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KVM: introduce KVM_HVA_ERR_RO_BAD

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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>
This commit is contained in:
Xiao Guangrong 2012-08-21 11:02:22 +08:00 committed by Avi Kivity
parent ca3a490c7d
commit 7068d09715
1 changed files with 3 additions and 2 deletions
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5
include/linux/kvm_host.h
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@ -82,11 +82,12 @@ static inline bool is_invalid_pfn(pfn_t pfn)
return !is_noslot_pfn(pfn) && is_error_pfn(pfn);
}
#define KVM_HVA_ERR_BAD (PAGE_OFFSET)
#define KVM_HVA_ERR_BAD (PAGE_OFFSET)
#define KVM_HVA_ERR_RO_BAD (PAGE_OFFSET + PAGE_SIZE)
static inline bool kvm_is_error_hva(unsigned long addr)
{
return addr == PAGE_OFFSET;
return addr >= PAGE_OFFSET;
}
#define KVM_ERR_PTR_BAD_PAGE (ERR_PTR(-ENOENT))