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| author | Igor Mammedov <imammedo@redhat.com> | 2023-03-02 17:15:33 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-03-07 12:39:00 -0500 |
| commit | 05a49b9c2fbe79661ac185aa4389ab250e2d689a (patch) | |
| tree | 87dcc305ffebcdaa54c8916f187ab4042757a3e5 /scripts/qapi/parser.py | |
| parent | a0facf38de479fc2d40d51dc4ad08ed5d160d21e (diff) | |
| download | focaccia-qemu-05a49b9c2fbe79661ac185aa4389ab250e2d689a.tar.gz focaccia-qemu-05a49b9c2fbe79661ac185aa4389ab250e2d689a.zip | |
acpi: pci: describe all functions on populated slots
describing all present devices on functions other than 0 was complicated when non hotplug and hotplug code was intermixed. So QEMU has been excluding non zero functions since they are not supported by hotplug code, then a condition to whitelist coldplugged bridges was added and later whitelisting of devices that advertise presence of their own AML description. With non hotplug and hotplug code separated, it is possible to relax rules and allow describing all non-hotpluggble functions and hence simplify conditions whether PCI device should be enumerated by generic (non-hotplug) code. Price of that simplification is an extra few Device() descriptors in DSDT exposing built-in chipset functions, which has no functional effect on guest side. Apart from that, the enumeration of non zero functions, allows to attach more NICs with acpi-index enabled directly on hostbridge (if hotplug is not required). Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <20230302161543.286002-25-imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'scripts/qapi/parser.py')
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