From 128ee6d105d2594f67a4ed462e0d2e515e048a4d Mon Sep 17 00:00:00 2001
From: Rob Bradford <rbradford@meta.com>
Date: Fri, 17 Apr 2026 09:11:47 +0100
Subject: [PATCH] virtio-devices: Implement VirtioDevice::access_platform()

This forwards through to the VirtioCommon implementation and can be used
to simplify the virtio PCI access code.

Signed-off-by: Rob Bradford <rbradford@meta.com>
---
 virtio-devices/src/block.rs        | 4 ++++
 virtio-devices/src/console.rs      | 4 ++++
 virtio-devices/src/net.rs          | 4 ++++
 virtio-devices/src/pmem.rs         | 4 ++++
 virtio-devices/src/rng.rs          | 4 ++++
 virtio-devices/src/vdpa.rs         | 4 ++++
 virtio-devices/src/vsock/device.rs | 4 ++++
 7 files changed, 28 insertions(+)

diff --git a/virtio-devices/src/block.rs b/virtio-devices/src/block.rs
index 961ab9fde..71c0b7ed3 100644
--- a/virtio-devices/src/block.rs
+++ b/virtio-devices/src/block.rs
@@ -1223,6 +1223,10 @@ impl VirtioDevice for Block {
     fn set_access_platform(&mut self, access_platform: Arc<dyn AccessPlatform>) {
         self.common.set_access_platform(access_platform);
     }
+
+    fn access_platform(&self) -> Option<Arc<dyn AccessPlatform>> {
+        self.common.access_platform()
+    }
 }
 
 impl Pausable for Block {
diff --git a/virtio-devices/src/console.rs b/virtio-devices/src/console.rs
index b7519626d..f141d08b1 100644
--- a/virtio-devices/src/console.rs
+++ b/virtio-devices/src/console.rs
@@ -782,6 +782,10 @@ impl VirtioDevice for Console {
     fn set_access_platform(&mut self, access_platform: Arc<dyn AccessPlatform>) {
         self.common.set_access_platform(access_platform);
     }
+
+    fn access_platform(&self) -> Option<Arc<dyn AccessPlatform>> {
+        self.common.access_platform()
+    }
 }
 
 impl Pausable for Console {
diff --git a/virtio-devices/src/net.rs b/virtio-devices/src/net.rs
index 7c50b4f8b..7ddbccca8 100644
--- a/virtio-devices/src/net.rs
+++ b/virtio-devices/src/net.rs
@@ -900,6 +900,10 @@ impl VirtioDevice for Net {
     fn set_access_platform(&mut self, access_platform: Arc<dyn AccessPlatform>) {
         self.common.set_access_platform(access_platform);
     }
+
+    fn access_platform(&self) -> Option<Arc<dyn AccessPlatform>> {
+        self.common.access_platform()
+    }
 }
 
 impl Pausable for Net {
diff --git a/virtio-devices/src/pmem.rs b/virtio-devices/src/pmem.rs
index 91e0f6579..eb94e7104 100644
--- a/virtio-devices/src/pmem.rs
+++ b/virtio-devices/src/pmem.rs
@@ -441,6 +441,10 @@ impl VirtioDevice for Pmem {
     fn set_access_platform(&mut self, access_platform: Arc<dyn AccessPlatform>) {
         self.common.set_access_platform(access_platform);
     }
+
+    fn access_platform(&self) -> Option<Arc<dyn AccessPlatform>> {
+        self.common.access_platform()
+    }
 }
 
 impl Pausable for Pmem {
diff --git a/virtio-devices/src/rng.rs b/virtio-devices/src/rng.rs
index e8fd5b374..2f43ac66d 100644
--- a/virtio-devices/src/rng.rs
+++ b/virtio-devices/src/rng.rs
@@ -305,6 +305,10 @@ impl VirtioDevice for Rng {
     fn set_access_platform(&mut self, access_platform: Arc<dyn AccessPlatform>) {
         self.common.set_access_platform(access_platform);
     }
+
+    fn access_platform(&self) -> Option<Arc<dyn AccessPlatform>> {
+        self.common.access_platform()
+    }
 }
 
 impl Pausable for Rng {
diff --git a/virtio-devices/src/vdpa.rs b/virtio-devices/src/vdpa.rs
index ff7305395..f9bf7a39d 100644
--- a/virtio-devices/src/vdpa.rs
+++ b/virtio-devices/src/vdpa.rs
@@ -465,6 +465,10 @@ impl VirtioDevice for Vdpa {
     fn set_access_platform(&mut self, access_platform: Arc<dyn AccessPlatform>) {
         self.common.set_access_platform(access_platform);
     }
+
+    fn access_platform(&self) -> Option<Arc<dyn AccessPlatform>> {
+        self.common.access_platform()
+    }
 }
 
 impl Pausable for Vdpa {
diff --git a/virtio-devices/src/vsock/device.rs b/virtio-devices/src/vsock/device.rs
index dd877fa55..0b202945b 100644
--- a/virtio-devices/src/vsock/device.rs
+++ b/virtio-devices/src/vsock/device.rs
@@ -501,6 +501,10 @@ where
     fn set_access_platform(&mut self, access_platform: Arc<dyn AccessPlatform>) {
         self.common.set_access_platform(access_platform);
     }
+
+    fn access_platform(&self) -> Option<Arc<dyn AccessPlatform>> {
+        self.common.access_platform()
+    }
 }
 
 impl<B> Pausable for Vsock<B>