devices: Add fw_cfg device

Here we add the fw_cfg device as a legacy device to the device manager.
It is guarded behind a fw_cfg flag in vmm at creation of the
DeviceManager. In this cl we implement the fw_cfg device with one
function (signature).

Signed-off-by: Alex Orozco <alexorozco@google.com>
This commit is contained in:
Alex Orozco
2025-03-24 19:02:50 +00:00
committed by Bo Chen
parent 5226ceb974
commit 777b7ee11e
11 changed files with 455 additions and 0 deletions

1
Cargo.lock generated
View File

@@ -542,6 +542,7 @@ dependencies = [
"vm-memory",
"vm-migration",
"vmm-sys-util",
"zerocopy 0.8.26",
]
[[package]]