[libvirt PATCH 5/5] qemu: Reject TPM 1.2 for ARM virt guests

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We already reject TPM 1.2 in a number of scenarios; let's add
ARM virt guests to the list.

https://bugzilla.redhat.com/show_bug.cgi?id=1970310

Signed-off-by: Andrea Bolognani <abologna@xxxxxxxxxx>
---
 src/qemu/qemu_validate.c                          |  6 ++++++
 .../qemuxml2argvdata/aarch64-tpm-wrong-model.err  |  1 +
 .../qemuxml2argvdata/aarch64-tpm-wrong-model.xml  | 15 +++++++++++++++
 tests/qemuxml2argvtest.c                          |  1 +
 4 files changed, 23 insertions(+)
 create mode 100644 tests/qemuxml2argvdata/aarch64-tpm-wrong-model.err
 create mode 100644 tests/qemuxml2argvdata/aarch64-tpm-wrong-model.xml

diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c
index 382473d03b..b133ce3cd6 100644
--- a/src/qemu/qemu_validate.c
+++ b/src/qemu/qemu_validate.c
@@ -4517,6 +4517,12 @@ qemuValidateDomainDeviceDefTPM(virDomainTPMDef *tpm,
                            _("TPM 1.2 is not supported with the SPAPR device model"));
             return -1;
         }
+        /* TPM 1.2 + ARM does not work */
+        if (qemuDomainIsARMVirt(def)) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("TPM 1.2 is not supported on ARM"));
+            return -1;
+        }
         break;
     case VIR_DOMAIN_TPM_VERSION_2_0:
     case VIR_DOMAIN_TPM_VERSION_DEFAULT:
diff --git a/tests/qemuxml2argvdata/aarch64-tpm-wrong-model.err b/tests/qemuxml2argvdata/aarch64-tpm-wrong-model.err
new file mode 100644
index 0000000000..a3a82fdcf5
--- /dev/null
+++ b/tests/qemuxml2argvdata/aarch64-tpm-wrong-model.err
@@ -0,0 +1 @@
+unsupported configuration: TPM 1.2 is not supported on ARM
diff --git a/tests/qemuxml2argvdata/aarch64-tpm-wrong-model.xml b/tests/qemuxml2argvdata/aarch64-tpm-wrong-model.xml
new file mode 100644
index 0000000000..9441c4d05a
--- /dev/null
+++ b/tests/qemuxml2argvdata/aarch64-tpm-wrong-model.xml
@@ -0,0 +1,15 @@
+<domain type="qemu">
+  <name>aarch64test</name>
+  <uuid>496d7ea8-9739-544b-4ebd-ef08be936e8b</uuid>
+  <memory>1048576</memory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch="aarch64" machine="virt">hvm</type>
+  </os>
+  <devices>
+    <emulator>/usr/bin/qemu-system-aarch64</emulator>
+    <tpm model='tpm-tis'>
+      <backend type='emulator' version='1.2'/>
+    </tpm>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 9df28658b9..16236f0331 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -2565,6 +2565,7 @@ mymain(void)
     DO_TEST_CAPS_LATEST("tpm-emulator-tpm2-pstate");
     DO_TEST_CAPS_LATEST_PPC64("tpm-emulator-spapr");
     DO_TEST_CAPS_ARCH_LATEST("aarch64-tpm", "aarch64");
+    DO_TEST_PARSE_ERROR("aarch64-tpm-wrong-model", "aarch64");
 
     DO_TEST_PARSE_ERROR("pci-domain-invalid", NONE);
     DO_TEST_PARSE_ERROR("pci-bus-invalid", NONE);
-- 
2.31.1




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