#include <linux/slab.h>
#include <linux/rcupdate.h>
#include <linux/ratelimit.h>
+#include <linux/err.h>
#include <asm/signal.h>
#include <linux/kvm.h>
#define KVM_PFN_ERR_HWPOISON (-EHWPOISON)
#define KVM_PFN_ERR_BAD (-ENOENT)
+static inline int is_error_pfn(pfn_t pfn)
+{
+ return IS_ERR_VALUE(pfn);
+}
+
+static inline int is_noslot_pfn(pfn_t pfn)
+{
+ return pfn == -ENOENT;
+}
+
+static inline int is_invalid_pfn(pfn_t pfn)
+{
+ return !is_noslot_pfn(pfn) && is_error_pfn(pfn);
+}
+
/*
* vcpu->requests bit members
*/
extern struct page *bad_page;
int is_error_page(struct page *page);
-int is_error_pfn(pfn_t pfn);
-int is_noslot_pfn(pfn_t pfn);
-int is_invalid_pfn(pfn_t pfn);
int kvm_is_error_hva(unsigned long addr);
int kvm_set_memory_region(struct kvm *kvm,
struct kvm_userspace_memory_region *mem,