Messages in this thread Patch in this message | | | Date | Tue, 07 Aug 2012 17:53:25 +0800 | From | Xiao Guangrong <> | Subject | [PATCH v5 09/12] 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 slot
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> --- 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 7737e45..2df6861 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -77,11 +77,12 @@ 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)) -- 1.7.7.6
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