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[Qemu-devel] [PATCH RFC 3/7] hw/acpi: fix a DSDT table issue when a pxb
From: |
Marcel Apfelbaum |
Subject: |
[Qemu-devel] [PATCH RFC 3/7] hw/acpi: fix a DSDT table issue when a pxb is present. |
Date: |
Tue, 31 May 2016 20:48:34 +0300 |
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.
Signed-off-by: Marcel Apfelbaum <address@hidden>
---
hw/i386/acpi-build.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index c6f4afe..0c329fb 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -589,6 +589,10 @@ static void build_append_pci_bus_devices(Aml
*parent_scope, PCIBus *bus,
QLIST_FOREACH(sec, &bus->child, sibling) {
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));
}
}
--
2.4.3
- [Qemu-devel] [PATCH RFC 0/7] q35: add legacy pci acpi hotplug support, Marcel Apfelbaum, 2016/05/31
- [Qemu-devel] [PATCH RFC 2/7] hw/acpi: simplify dsdt building code, Marcel Apfelbaum, 2016/05/31
- [Qemu-devel] [PATCH RFC 3/7] hw/acpi: fix a DSDT table issue when a pxb is present.,
Marcel Apfelbaum <=
- [Qemu-devel] [PATCH RFC 1/7] hw/acpi: remove dead acpi code, Marcel Apfelbaum, 2016/05/31
- [Qemu-devel] [PATCH RFC 4/7] hw/apci: fix pcihp io initialization, Marcel Apfelbaum, 2016/05/31
- [Qemu-devel] [PATCH RFC 6/7] hw/acpi: extend acpi pci hotplug support for pci express, Marcel Apfelbaum, 2016/05/31
- [Qemu-devel] [PATCH RFC 7/7] hw/ich9: enable pci acpi hotplug, Marcel Apfelbaum, 2016/05/31
- [Qemu-devel] [PATCH RFC 5/7] hw/acpi: prepare pci hotplug IO for ich9, Marcel Apfelbaum, 2016/05/31