From: Han Han <hhan@redhat.com>
Date: Mon, 4 Dec 2023 10:07:20 +0000 (+0800)
Subject: vir-qemu-sev-validate: Use string() method in xpath
X-Git-Tag: v10.0.0-rc1~127
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6beeca77be0d43fe25c9e3c68b956da485f12441;p=thirdparty%2Flibvirt.git

vir-qemu-sev-validate: Use string() method in xpath

For the xpath "/domain/cpu/@mode", it will return a list type not a
string. Use string() method in the xpath for the string result.

Fixes: 6b95437c17

Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---

diff --git a/tools/virt-qemu-sev-validate b/tools/virt-qemu-sev-validate
index 67edbd085f..115266976b 100755
--- a/tools/virt-qemu-sev-validate
+++ b/tools/virt-qemu-sev-validate
@@ -1054,7 +1054,7 @@ class LibvirtConfidentialVM(ConfidentialVM):
                 raise InsecureUsageException(
                     "Using CPU SKU from capabilities is not secure")
 
-            mode = doc.xpath("/domain/cpu/@mode")
+            mode = doc.xpath("string(/domain/cpu/@mode)")
             if mode != "host-passthrough":
                 raise UnsupportedUsageException(
                     "Using CPU family/model/stepping from host not possible unless 'host-passthrough' is used")