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hw/acpi: fix a DSDT table issue when a pxb is present.

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PXBs do not support hotplug so they don't have a PCNT function.
Since the PXB's PCI root-bus is a child bus of bus 0, the
build_dsdt code will add a call to the corresponding PCNT function.

Fix this by skipping the PCNT call for the above case.
While at it skip also PCIe child buses.

Reported-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Marcel Apfelbaum 2016-07-17 19:53:11 +03:00 committed by Michael S. Tsirkin
parent 7b346c742c
commit c99cb18eeb
1 changed files with 4 additions and 0 deletions
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hw/i386/acpi-build.c
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@ -600,6 +600,10 @@ static void build_append_pci_bus_devices(Aml *parent_scope, PCIBus *bus,
QLIST_FOREACH(sec, &bus->child, sibling) { QLIST_FOREACH(sec, &bus->child, sibling) {
int32_t devfn = sec->parent_dev->devfn; int32_t devfn = sec->parent_dev->devfn;
if (pci_bus_is_root(sec) || pci_bus_is_express(sec)) {
continue;
}
aml_append(method, aml_name("^S%.02X.PCNT", devfn)); aml_append(method, aml_name("^S%.02X.PCNT", devfn));
} }
} }