From 037b3feba79a4e537c9a6a089e0c7e30bab9c0b4 Mon Sep 17 00:00:00 2001
From: Matt Bilker <me@mbilker.us>
Date: Mon, 29 Jul 2024 10:15:23 +0000
Subject: [PATCH] utils: fix Proxmox format

- Closes #34
---
 src/utils.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/utils.rs b/src/utils.rs
index 1395e4a..30e6c6a 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -36,8 +36,11 @@ pub fn from_c_str(value: &[u8]) -> Cow<'_, str> {
 /// All except the last segment must be zero
 #[cfg(feature = "proxmox")]
 pub fn uuid_to_vmid(uuid: Uuid) -> Option<u64> {
-    // Ensure that the first parts of the uuid are only 0
-    if uuid.0 != 0 || uuid.1 != 0 || uuid.2 != 0 || uuid.3[0] != 0 || uuid.3[1] != 0 {
+    // Following https://forum.proxmox.com/threads/automatically-assign-uuid-to-a-vgpu-instance.98994/#post-427480
+    //
+    // The format is `<HOST_PCI_INDEX>-0000-0000-0000-<VM_ID>`. Ensure the parts that should be
+    // zero are in fact zero.
+    if uuid.1 != 0 || uuid.2 != 0 || uuid.3[0] != 0 || uuid.3[1] != 0 {
         return None;
     }