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| author | Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> | 2012-08-21 11:02:22 +0800 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-08-22 15:09:01 +0300 |
| commit | 7068d0971524dd47a38f44f6020ba133432871ca (patch) | |
| tree | ce1b9d2b8331c417560a3d53f2bf9c5b52ce9dc0 /include/linux/kvm_host.h | |
| parent | ca3a490c7de8472b514e2d635c052b1e0f8e1c9d (diff) | |
| download | lwn-7068d0971524dd47a38f44f6020ba133432871ca.tar.gz lwn-7068d0971524dd47a38f44f6020ba133432871ca.zip | |
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>
Diffstat (limited to 'include/linux/kvm_host.h')
| -rw-r--r-- | include/linux/kvm_host.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index b9bba60c298b..a913ac709a9d 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -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)) |