[PATCH v7 02/10] qemu: Extend QEMU capabilities with 'spapr-tpm-proxy'

[Daniel Henrique Barboza <danielhb413@xxxxxxxxx>]

Expose the TPM Proxy support for PPC64 guests by creating a new
cap called QEMU_CAPS_DEVICE_SPAPR_TPM_PROXY.

This device is part of the machinery the guest need to orchestrate
with the PPC64 Ultravisor the transition to the Secure VM (SVM)
mode. Inside QEMU, this device will be used with the H_TPM_COMM
hypercall to connect with the TPM Resource Manager, enabling
the guest to open and close TPM sessions with the host TPM.

Tested-by: Satheesh Rajendran <sathnaga@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
Reviewed-by: Ján Tomko <jtomko@xxxxxxxxxx>
Signed-off-by: Daniel Henrique Barboza <danielhb413@xxxxxxxxx>
---
 src/qemu/qemu_capabilities.c                    | 2 ++
 src/qemu/qemu_capabilities.h                    | 1 +
 tests/qemucapabilitiesdata/caps_4.2.0.ppc64.xml | 1 +
 tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml | 1 +
 4 files changed, 5 insertions(+)

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index aa90eab229..7d52d9725a 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -587,6 +587,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
               "cpu.migratable",
               "query-cpu-model-expansion.migratable",
               "fw_cfg",
+              "spapr-tpm-proxy",
     );
 
 
@@ -1311,6 +1312,7 @@ struct virQEMUCapsStringFlags virQEMUCapsObjectTypes[] = {
     { "vhost-user-fs-device", QEMU_CAPS_DEVICE_VHOST_USER_FS },
     { "tcg-accel", QEMU_CAPS_TCG },
     { "pvscsi", QEMU_CAPS_SCSI_PVSCSI },
+    { "spapr-tpm-proxy", QEMU_CAPS_DEVICE_SPAPR_TPM_PROXY },
 };
 
 
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 0839c50bc4..f868330511 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -568,6 +568,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
     QEMU_CAPS_CPU_MIGRATABLE, /* -cpu ...,migratable=on|off */
     QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION_MIGRATABLE, /* query-cpu-model-expansion supports migratable:false */
     QEMU_CAPS_FW_CFG, /* -fw_cfg command line option */
+    QEMU_CAPS_DEVICE_SPAPR_TPM_PROXY, /* -device spapr-tpm-proxy */
 
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;
diff --git a/tests/qemucapabilitiesdata/caps_4.2.0.ppc64.xml b/tests/qemucapabilitiesdata/caps_4.2.0.ppc64.xml
index 4d44cd4ac6..bdf29dcc39 100644
--- a/tests/qemucapabilitiesdata/caps_4.2.0.ppc64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.2.0.ppc64.xml
@@ -186,6 +186,7 @@
   <flag name='tcg'/>
   <flag name='pvscsi'/>
   <flag name='fw_cfg'/>
+  <flag name='spapr-tpm-proxy'/>
   <version>4001050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>42900242</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml b/tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml
index 409120262e..5c69d1c1dc 100644
--- a/tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml
+++ b/tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml
@@ -202,6 +202,7 @@
   <flag name='virtio-blk-pci.scsi.default.disabled'/>
   <flag name='pvscsi'/>
   <flag name='fw_cfg'/>
+  <flag name='spapr-tpm-proxy'/>
   <version>5000000</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>42900241</microcodeVersion>
-- 
2.26.2