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b7f23f62e4
Implement _DSM according to:
PCI Firmware Specification 3.1
4.6.7. DSM for Naming a PCI or PCI Express Device Under
Operating Systems
and wire it up to cold and hot-plugged PCI devices.
Feature depends on ACPI hotplug being enabled (as that provides
PCI devices descriptions in ACPI and MMIO registers that are
reused to fetch acpi-index).
acpi-index should work for
- cold plugged NICs:
$QEMU -device e1000,acpi-index=100
=> 'eno100'
- hot-plugged
(monitor) device_add e1000,acpi-index=200,id=remove_me
=> 'eno200'
- re-plugged
(monitor) device_del remove_me
(monitor) device_add e1000,acpi-index=1
=> 'eno1'
Windows also sees index under "PCI Label Id" field in properties
dialog but otherwise it doesn't seem to have any effect.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20210315180102.3008391-6-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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|---|---|---|
| .. | ||
| acpi-defs.h | ||
| acpi.h | ||
| acpi_dev_interface.h | ||
| aml-build.h | ||
| bios-linker-loader.h | ||
| cpu.h | ||
| cpu_hotplug.h | ||
| generic_event_device.h | ||
| ghes.h | ||
| ich9.h | ||
| ipmi.h | ||
| memory_hotplug.h | ||
| pc-hotplug.h | ||
| pci.h | ||
| pcihp.h | ||
| tco.h | ||
| tpm.h | ||
| utils.h | ||
| vmgenid.h | ||