Searched hist:db4728e6fec0364b866d3106125974eedc00e091 (Results 1 – 2 of 2) sorted by relevance
| /openbmc/qemu/include/hw/acpi/ |
| H A D | pcihp.h | db4728e6fec0364b866d3106125974eedc00e091 Mon Oct 14 10:01:11 CDT 2013 Michael S. Tsirkin <mst@redhat.com> pcihp: generalization of piix4 acpi
Add ACPI based PCI hotplug library with bridge hotplug
support.
Design
- each bus gets assigned "bsel" property.
- ACPI code writes this number
to a new BNUM register, then uses existing
UP/DOWN registers to probe slot status;
to eject, write number to BNUM register,
then slot into existing EJ.
The interface is actually backwards-compatible with
existing PIIX4 ACPI (though not migration compatible).
This is split out from PIIX4 codebase so we can
reuse it for Q35 as well.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
|
| /openbmc/qemu/hw/acpi/ |
| H A D | pcihp.c | db4728e6fec0364b866d3106125974eedc00e091 Mon Oct 14 10:01:11 CDT 2013 Michael S. Tsirkin <mst@redhat.com> pcihp: generalization of piix4 acpi
Add ACPI based PCI hotplug library with bridge hotplug
support.
Design
- each bus gets assigned "bsel" property.
- ACPI code writes this number
to a new BNUM register, then uses existing
UP/DOWN registers to probe slot status;
to eject, write number to BNUM register,
then slot into existing EJ.
The interface is actually backwards-compatible with
existing PIIX4 ACPI (though not migration compatible).
This is split out from PIIX4 codebase so we can
reuse it for Q35 as well.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
|