From 3abc1e1e51e22c799ada7ea03ce07c4c5a083598 Mon Sep 17 00:00:00 2001
From: lizhaoxin1 <Lxiaoyouling@163.com>
Date: Thu, 4 Aug 2022 11:33:44 +0800
Subject: [PATCH] vmm: config: Add "uuid" option to "--platform"

The uuid indicates the unique ID of a virtual machine.
cloud-hypervisor takes the uuid passed by libvirt
and uses it to initialize cloud-init.

Signed-off-by: lizhaoxin1 <Lxiaoyouling@163.com>
---
 src/main.rs       | 2 +-
 vmm/src/config.rs | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index 0e6d5e98b..890416c37 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -155,7 +155,7 @@ fn create_app<'a>(
             Arg::new("platform")
                 .long("platform")
                 .help(
-                    "num_pci_segments=<num pci segments>,iommu_segments=<list_of_segments>,serial_number=<(DMI) device serial number>",
+                    "num_pci_segments=<num_pci_segments>,iommu_segments=<list_of_segments>,serial_number=<dmi_device_serial_number>,uuid=<dmi_device_uuid>",
                 )
                 .takes_value(true)
                 .group("vm-config"),
diff --git a/vmm/src/config.rs b/vmm/src/config.rs
index 1c8e93b24..d51b54b69 100644
--- a/vmm/src/config.rs
+++ b/vmm/src/config.rs
@@ -634,6 +634,8 @@ pub struct PlatformConfig {
     pub iommu_segments: Option<Vec<u16>>,
     #[serde(default)]
     pub serial_number: Option<String>,
+    #[serde(default)]
+    pub uuid: Option<String>,
 }
 
 impl PlatformConfig {
@@ -642,6 +644,7 @@ impl PlatformConfig {
         parser.add("num_pci_segments");
         parser.add("iommu_segments");
         parser.add("serial_number");
+        parser.add("uuid");
         parser.parse(platform).map_err(Error::ParsePlatform)?;
 
         let num_pci_segments: u16 = parser
@@ -655,10 +658,12 @@ impl PlatformConfig {
         let serial_number = parser
             .convert("serial_number")
             .map_err(Error::ParsePlatform)?;
+        let uuid = parser.convert("uuid").map_err(Error::ParsePlatform)?;
         Ok(PlatformConfig {
             num_pci_segments,
             iommu_segments,
             serial_number,
+            uuid,
         })
     }
 
@@ -687,6 +692,7 @@ impl Default for PlatformConfig {
             num_pci_segments: DEFAULT_NUM_PCI_SEGMENTS,
             iommu_segments: None,
             serial_number: None,
+            uuid: None,
         }
     }
 }