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path: root/drivers/kvm/kvm_main.c
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Diffstat (limited to 'drivers/kvm/kvm_main.c')
-rw-r--r--drivers/kvm/kvm_main.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index d395c987894e..dfb65e2f87ee 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -498,6 +498,17 @@ int is_error_page(struct page *page)
}
EXPORT_SYMBOL_GPL(is_error_page);
+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);
+
gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
{
int i;