+This should be just PAGE_SIZE, as this code is unrelated to communication
+/*
+ * hv_map_memory - map memory to extra space in the AMD SEV-SNP Isolation VM.
+ */
+void *hv_map_memory(void *addr, unsigned long size)
+{
+ unsigned long *pfns = kcalloc(size / HV_HYP_PAGE_SIZE,
with Hyper-V.