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Allow vfio releted subdirectories to be mirrored by gVisor.

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It expects to mirror sysfs device subdirectories like `vfio-dev` and `vfio#`

PiperOrigin-RevId: 588855389
This commit is contained in:
Jing Chen
2023-12-07 11:29:03 -08:00
committed by gVisor bot
parent 047cabf457
commit d7a3ec8305
1 changed files with 3 additions and 3 deletions
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pkg/sentry/fsimpl/sys/pci.go
+3 -3
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@@ -37,9 +37,9 @@ const (
var (
// Matches PCI device addresses in the main domain.
pciDeviceRegex = regex.MustCompile(`0000:([a-fA-F0-9]{2}|[a-fA-F0-9]{4}):[a-fA-F0-9]{2}\.[a-fA-F0-9]{1,2}`)
// Matches the directories for the main bus (i.e. pci000:00), accel, and
// individual devices (e.g. 00:00:04.0)
sysDevicesDirRegex = regex.MustCompile(`pci0000:00|accel|(0000:([a-fA-F0-9]{2}|[a-fA-F0-9]{4}):[a-fA-F0-9]{2}\.[a-fA-F0-9]{1,2})`)
// Matches the directories for the main bus (i.e. pci000:00),
// individual devices (e.g. 00:00:04.0), accel (TPU v4), and vfio (TPU v5)
sysDevicesDirRegex = regex.MustCompile(`pci0000:00|accel|vfio|(0000:([a-fA-F0-9]{2}|[a-fA-F0-9]{4}):[a-fA-F0-9]{2}\.[a-fA-F0-9]{1,2})`)
// Files allowlisted for host passthrough. These files are read-only.
sysDevicesFiles = map[string]any{
"vendor": nil, "device": nil, "subsystem_vendor": nil, "subsystem_device": nil,