提交 ca3a490c 编写于 作者: X Xiao Guangrong 提交者: Avi Kivity

KVM: introduce KVM_HVA_ERR_BAD

Then, remove bad_hva and inline kvm_is_error_hva
Signed-off-by: NXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>
上级 69552c29
......@@ -82,6 +82,13 @@ 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)
static inline bool kvm_is_error_hva(unsigned long addr)
{
return addr == PAGE_OFFSET;
}
#define KVM_ERR_PTR_BAD_PAGE (ERR_PTR(-ENOENT))
static inline bool is_error_page(struct page *page)
......@@ -430,7 +437,6 @@ id_to_memslot(struct kvm_memslots *slots, int id)
return slot;
}
int kvm_is_error_hva(unsigned long addr);
int kvm_set_memory_region(struct kvm *kvm,
struct kvm_userspace_memory_region *mem,
int user_alloc);
......
......@@ -931,17 +931,6 @@ void kvm_disable_largepages(void)
}
EXPORT_SYMBOL_GPL(kvm_disable_largepages);
static inline unsigned long bad_hva(void)
{
return PAGE_OFFSET;
}
int kvm_is_error_hva(unsigned long addr)
{
return addr == bad_hva();
}
EXPORT_SYMBOL_GPL(kvm_is_error_hva);
struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
{
return __gfn_to_memslot(kvm_memslots(kvm), gfn);
......@@ -988,7 +977,7 @@ static unsigned long gfn_to_hva_many(struct kvm_memory_slot *slot, gfn_t gfn,
gfn_t *nr_pages)
{
if (!slot || slot->flags & KVM_MEMSLOT_INVALID)
return bad_hva();
return KVM_HVA_ERR_BAD;
if (nr_pages)
*nr_pages = slot->npages - (gfn - slot->base_gfn);
......
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