@@ -1019,6 +1019,47 @@ int sev_guest_df_flush(int *error)
 }
 EXPORT_SYMBOL_GPL(sev_guest_df_flush);
 
+int sev_guest_snp_decommission(struct sev_data_snp_decommission *data, int *error)
+{
+	return sev_do_cmd(SEV_CMD_SNP_DECOMMISSION, data, error);
+}
+EXPORT_SYMBOL_GPL(sev_guest_snp_decommission);
+
+int sev_guest_snp_df_flush(int *error)
+{
+	return sev_do_cmd(SEV_CMD_SNP_DF_FLUSH, NULL, error);
+}
+EXPORT_SYMBOL_GPL(sev_guest_snp_df_flush);
+
+int sev_snp_reclaim(struct sev_data_snp_page_reclaim *data, int *error)
+{
+	return sev_do_cmd(SEV_CMD_SNP_PAGE_RECLAIM, data, error);
+}
+EXPORT_SYMBOL_GPL(sev_snp_reclaim);
+
+int sev_snp_unsmash(unsigned long paddr, int *error)
+{
+	struct sev_data_snp_page_unsmash *data;
+	int rc;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL_ACCOUNT);
+	if (!data)
+		return -ENOMEM;
+
+	data->paddr = paddr;
+	rc = sev_do_cmd(SEV_CMD_SNP_PAGE_UNSMASH, data, error);
+
+	kfree(data);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(sev_snp_unsmash);
+
+int sev_guest_snp_dbg_decrypt(struct sev_data_snp_dbg *data, int *error)
+{
+	return sev_do_cmd(SEV_CMD_SNP_DBG_DECRYPT, data, error);
+}
+EXPORT_SYMBOL_GPL(sev_guest_snp_dbg_decrypt);
+
 static void sev_exit(struct kref *ref)
 {
 	misc_deregister(&misc_dev->misc);

@@ -821,6 +821,80 @@ int sev_guest_df_flush(int *error);
  */
 int sev_guest_decommission(struct sev_data_decommission *data, int *error);
 
+/**
+ * sev_guest_df_flush - perform SNP DF_FLUSH command
+ *
+ * @sev_ret: sev command return code
+ *
+ * Returns:
+ * 0 if the sev successfully processed the command
+ * -%ENODEV    if the sev device is not available
+ * -%ENOTSUPP  if the sev does not support SEV
+ * -%ETIMEDOUT if the sev command timed out
+ * -%EIO       if the sev returned a non-zero return code
+ */
+int sev_guest_snp_df_flush(int *error);
+
+/**
+ * sev_guest_snp_decommission - perform SNP_DECOMMISSION command
+ *
+ * @decommission: sev_data_decommission structure to be processed
+ * @sev_ret: sev command return code
+ *
+ * Returns:
+ * 0 if the sev successfully processed the command
+ * -%ENODEV    if the sev device is not available
+ * -%ENOTSUPP  if the sev does not support SEV
+ * -%ETIMEDOUT if the sev command timed out
+ * -%EIO       if the sev returned a non-zero return code
+ */
+int sev_guest_snp_decommission(struct sev_data_snp_decommission *data, int *error);
+
+/**
+ * sev_snp_reclaim - perform SNP_PAGE_RECLAIM command
+ *
+ * @decommission: sev_snp_page_reclaim structure to be processed
+ * @sev_ret: sev command return code
+ *
+ * Returns:
+ * 0 if the sev successfully processed the command
+ * -%ENODEV    if the sev device is not available
+ * -%ENOTSUPP  if the sev does not support SEV
+ * -%ETIMEDOUT if the sev command timed out
+ * -%EIO       if the sev returned a non-zero return code
+ */
+int sev_snp_reclaim(struct sev_data_snp_page_reclaim *data, int *error);
+
+/**
+ * sev_snp_reclaim - perform SNP_PAGE_UNSMASH command
+ *
+ * @decommission: sev_snp_page_unmash structure to be processed
+ * @sev_ret: sev command return code
+ *
+ * Returns:
+ * 0 if the sev successfully processed the command
+ * -%ENODEV    if the sev device is not available
+ * -%ENOTSUPP  if the sev does not support SEV
+ * -%ETIMEDOUT if the sev command timed out
+ * -%EIO       if the sev returned a non-zero return code
+ */
+int sev_snp_unsmash(unsigned long paddr, int *error);
+
+/**
+ * sev_guest_snp_dbg_decrypt - perform SEV SNP_DBG_DECRYPT command
+ *
+ * @sev_ret: sev command return code
+ *
+ * Returns:
+ * 0 if the sev successfully processed the command
+ * -%ENODEV    if the sev device is not available
+ * -%ENOTSUPP  if the sev does not support SEV
+ * -%ETIMEDOUT if the sev command timed out
+ * -%EIO       if the sev returned a non-zero return code
+ */
+int sev_guest_snp_dbg_decrypt(struct sev_data_snp_dbg *data, int *error);
+
+
 void *psp_copy_user_blob(u64 uaddr, u32 len);
 
 #else	/* !CONFIG_CRYPTO_DEV_SP_PSP */

@@ -848,6 +922,17 @@ sev_issue_cmd_external_user(struct file *filep, unsigned int id, void *data, int
 
 static inline void *psp_copy_user_blob(u64 __user uaddr, u32 len) { return ERR_PTR(-EINVAL); }
 
+static inline int
+sev_guest_snp_decommission(struct sev_data_snp_decommission *data, int *error) { return -ENODEV; }
+
+static inline int sev_guest_snp_df_flush(int *error) { return -ENODEV; }
+
+static inline int sev_snp_reclaim(struct sev_data_snp_page_reclaim *data, int *error) { return -ENODEV; }
+
+static inline int sev_snp_unsmash(unsigned long paddr, int *error) { return -ENODEV; }
+
+static inline int sev_guest_snp_dbg_decrypt(struct sev_data_snp_dbg *data, int *error) { return -ENODEV; }
+
 #endif	/* CONFIG_CRYPTO_DEV_SP_PSP */
 
 #endif	/* __PSP_SEV_H__ */