vTPM : fix arm issue by selecting correct dev name based on arch

The vTPM device name is different on ARM and x86. This patch fixes the the issue by selecting the correct device name based on the architecture. Signed-off-by: Shahriyar Jalayeri <[email protected]>
lf-edge · Sep 13, 2024 · f1d311e · f1d311e
1 parent af37037
commit f1d311e
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/pkg/pillar/hypervisor/kvm.go b/pkg/pillar/hypervisor/kvm.go
@@ -426,7 +426,14 @@ const qemuSwtpmTemplate = `
   chardev = "swtpm"
 
 [device "tpm-tis"]
+# 'virt' refers to aarch64
+# 'tpm-tis-device' for aarch64 versus 'tpm-tis' for x86
+# Reference: https://listman.redhat.com/archives/libvir-list/2021-February/msg00647.html
+{{- if eq .Machine "virt"}}
+  driver = "tpm-tis-device"
+{{- else}}
   driver = "tpm-tis"
+{{- end}}
   tpmdev = "tpm0"
 `