Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
---
 src/conf/domain_capabilities.c | 15 +++++++++++++++
 src/conf/domain_capabilities.h | 12 ++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/src/conf/domain_capabilities.c b/src/conf/domain_capabilities.c
index 247cfa49de..aacd590601 100644
--- a/src/conf/domain_capabilities.c
+++ b/src/conf/domain_capabilities.c
@@ -598,6 +598,20 @@ virDomainCapsDeviceChannelFormat(virBuffer *buf,
 }
 
 
+static void
+virDomainCapsDeviceCryptoFormat(virBuffer *buf,
+                             const virDomainCapsDeviceCrypto *crypto)
+{
+    FORMAT_PROLOGUE(crypto);
+
+    ENUM_PROCESS(crypto, model, virDomainCryptoModelTypeToString);
+    ENUM_PROCESS(crypto, type, virDomainCryptoTypeTypeToString);
+    ENUM_PROCESS(crypto, backendModel, virDomainCryptoBackendTypeToString);
+
+    FORMAT_EPILOGUE(crypto);
+}
+
+
 /**
  * virDomainCapsFeatureGICFormat:
  * @buf: target buffer
@@ -748,6 +762,7 @@ virDomainCapsFormat(const virDomainCaps *caps)
     virDomainCapsDeviceTPMFormat(&buf, &caps->tpm);
     virDomainCapsDeviceRedirdevFormat(&buf, &caps->redirdev);
     virDomainCapsDeviceChannelFormat(&buf, &caps->channel);
+    virDomainCapsDeviceCryptoFormat(&buf, &caps->crypto);
 
     virBufferAdjustIndent(&buf, -2);
     virBufferAddLit(&buf, "</devices>\n");
diff --git a/src/conf/domain_capabilities.h b/src/conf/domain_capabilities.h
index 1d504a3506..1b128a3a3c 100644
--- a/src/conf/domain_capabilities.h
+++ b/src/conf/domain_capabilities.h
@@ -224,6 +224,17 @@ struct _virSGXCapability {
     virSGXSection *sgxSections;
 };
 
+STATIC_ASSERT_ENUM(VIR_DOMAIN_CRYPTO_MODEL_LAST);
+STATIC_ASSERT_ENUM(VIR_DOMAIN_CRYPTO_TYPE_LAST);
+STATIC_ASSERT_ENUM(VIR_DOMAIN_CRYPTO_BACKEND_LAST);
+typedef struct _virDomainCapsDeviceCrypto virDomainCapsDeviceCrypto;
+struct _virDomainCapsDeviceCrypto {
+    virTristateBool supported;
+    virDomainCapsEnum model;   /* virDomainCryptoModel */
+    virDomainCapsEnum type;   /* virDomainCryptoType */
+    virDomainCapsEnum backendModel;   /* virDomainCryptoBackend */
+};
+
 typedef enum {
     VIR_DOMAIN_CAPS_FEATURE_IOTHREADS = 0,
     VIR_DOMAIN_CAPS_FEATURE_VMCOREINFO,
@@ -258,6 +269,7 @@ struct _virDomainCaps {
     virDomainCapsDeviceTPM tpm;
     virDomainCapsDeviceRedirdev redirdev;
     virDomainCapsDeviceChannel channel;
+    virDomainCapsDeviceCrypto crypto;
     /* add new domain devices here */
 
     virDomainCapsFeatureGIC gic;
-- 
2.34.1

On 1/4/23 04:29, zhenwei pi wrote:
> Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
> ---
>  src/conf/domain_capabilities.c | 15 +++++++++++++++
>  src/conf/domain_capabilities.h | 12 ++++++++++++
>  2 files changed, 27 insertions(+)

Parts of the next patch should be squashed into this one.
Also, you should document this addition in docs/formatdomaincaps.rst.

Michal