From 299d0ea888eaefa6ee801fa13ca71813127a9fc3 Mon Sep 17 00:00:00 2001
From: Michal Privoznik <mprivozn@redhat.com>
Date: Wed, 25 Nov 2020 11:38:22 +0100
Subject: [PATCH] domain_conf: Check NVDIMM UUID in ABI stability

The UUID is guest visible and thus shouldn't change if we want to
not break guest ABI.

Fixes: 08ed673901bb5b4f419b37bcce9b11d31ce370e6
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Han Han <hhan@redhat.com>
---
 src/conf/domain_conf.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 425e3c3710..d8df18b542 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -24204,6 +24204,12 @@ virDomainMemoryDefCheckABIStability(virDomainMemoryDefPtr src,
                              "source NVDIMM readonly flag"));
             return false;
         }
+
+        if (memcmp(src->uuid, dst->uuid, VIR_UUID_BUFLEN) != 0) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("Target NVDIMM UUID doesn't match source NVDIMM"));
+            return false;
+        }
     }
 
     return virDomainDeviceInfoCheckABIStability(&src->info, &dst->info);