wuxinyue 75b0fe5a21 vmm: defer PCI device visibility to fix hotplug race condition ...

Split `add_pci_device()` into two phases: `allocate_pci_bars()` which
only allocates BAR address space, and `commit_pci_device()` which
makes the device visible to the guest on the PCI bus.

All callers now follow the pattern: allocate BARs → perform device-
specific setup (ioeventfd, device_tree, mmio mapping) → commit device.
This eliminates a race window where the guest could discover a
partially-initialized device via `acpiphp_check_bridge()` during rapid
sequential hotplug, causing BAR reprogramming to fail because
ioeventfds and device_tree entries were not yet in place.

Signed-off-by: wuxinyue <wuxinyue.wxy@antgroup.com>
Assisted-by: Claude:Opus-4.6

2026-06-12 08:19:42 +00:00

..

src

vmm: defer PCI device visibility to fix hotplug race condition

2026-06-12 08:19:42 +00:00

build.rs

build: Add "fuzzing" as a valid cfg(..) attribute

2024-05-08 08:10:28 +00:00

Cargo.toml

vmm: Make sev_snp depend on igvm

2026-06-10 21:29:40 +00:00