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Signed-off-by: Bernhard Beschow --- hw/pci-host/designware.c | 33 ++++++++++++++++++++++----------- 1 file changed, 22 insertions(+), 11 deletions(-) diff --git a/hw/pci-host/designware.c b/hw/pci-host/designware.c index d71133a456..2dd4937e52 100644 --- a/hw/pci-host/designware.c +++ b/hw/pci-host/designware.c @@ -442,11 +442,6 @@ static void designware_pcie_root_realize(PCIDevice *de= v, Error **errp) DesignwarePCIERoot *root =3D DESIGNWARE_PCIE_ROOT(dev); DesignwarePCIEHost *host =3D designware_pcie_root_to_host(root); PCIBridge *br =3D PCI_BRIDGE(dev); - /* - * Dummy values used for initial configuration of MemoryRegions - * that belong to a given viewport - */ - const hwaddr dummy_offset =3D 0; =20 br->bus_name =3D "dw-pcie"; =20 @@ -484,6 +479,26 @@ static void designware_pcie_root_realize(PCIDevice *de= v, Error **errp) DesignwarePCIEViewport *viewport =3D &root->viewports[i][j]; viewport->name =3D names[i][j]; viewport->inbound =3D i =3D=3D DESIGNWARE_PCIE_VIEWPORT_INBOUN= D; + } + } + + memory_region_init_io(&root->msi.iomem, OBJECT(root), + &designware_pci_host_msi_ops, + root, "pcie-msi", 0x4); + memory_region_add_subregion(&host->pci.memory, 0, &root->msi.iomem); +} + +static void designware_pcie_root_reset(DeviceState *dev) +{ + DesignwarePCIERoot *root =3D DESIGNWARE_PCIE_ROOT(dev); + DesignwarePCIEViewport *viewport; + + pci_bridge_reset(dev); + + for (int i =3D 0; i < ARRAY_SIZE(root->viewports); i++) { + for (int j =3D 0; j < DESIGNWARE_PCIE_NUM_VIEWPORTS; j++) { + viewport =3D &root->viewports[i][j]; + viewport->base =3D 0x0000000000000000ULL; viewport->target =3D 0x0000000000000000ULL; viewport->limit =3D UINT32_MAX; @@ -494,17 +509,13 @@ static void designware_pcie_root_realize(PCIDevice *d= ev, Error **errp) } } =20 - memory_region_init_io(&root->msi.iomem, OBJECT(root), - &designware_pci_host_msi_ops, - root, "pcie-msi", 0x4); /* * We initially place MSI interrupt I/O region at address 0 and * disable it. It'll be later moved to correct offset and enabled * in designware_pcie_root_update_msi_mapping() as a part of * initialization done by guest OS */ - memory_region_add_subregion(&host->pci.memory, dummy_offset, - &root->msi.iomem); + memory_region_set_address(&root->msi.iomem, 0); memory_region_set_enabled(&root->msi.iomem, false); } =20 @@ -602,7 +613,7 @@ static void designware_pcie_root_class_init(ObjectClass= *klass, k->config_read =3D designware_pcie_root_config_read; k->config_write =3D designware_pcie_root_config_write; =20 - device_class_set_legacy_reset(dc, pci_bridge_reset); + device_class_set_legacy_reset(dc, designware_pcie_root_reset); /* * PCI-facing part of the host bridge, not usable without the * host-facing part, which can't be device_add'ed, yet. --=20 2.50.1