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X-Received-From: 2a00:1450:4864:20::444 Subject: [Qemu-devel] [RFC v3 5/6] pci_expander_bridge: Add ioport for pxb host bus X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Zihan Yang , "Michael S. Tsirkin" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This enables seabios to read config file in pxb host bus other than sysbus Signed-off-by: Zihan Yang --- hw/pci-bridge/pci_expander_bridge.c | 15 +++++++++++++++ include/hw/pci-bridge/pci_expander_bridge.h | 3 +++ 2 files changed, 18 insertions(+) diff --git a/hw/pci-bridge/pci_expander_bridge.c b/hw/pci-bridge/pci_expand= er_bridge.c index cdfdb90..38212db 100644 --- a/hw/pci-bridge/pci_expander_bridge.c +++ b/hw/pci-bridge/pci_expander_bridge.c @@ -226,6 +226,20 @@ static void pxb_pcie_host_initfn(Object *obj) qdev_prop_allow_set_link_before_realize, 0, NULL); } =20 +static void pxb_pcie_host_realize(DeviceState *dev, Error **errp) +{ + PCIHostState *pci =3D PCI_HOST_BRIDGE(dev); + SysBusDevice *sbd =3D SYS_BUS_DEVICE(dev); + + // FIX ME! Use specific port number for pxb-pcie host bridge, not scal= able! + /* port layout is | pxb1_cmd | pxb1_data | pxb2_cmd | pxb2_data | ... = | */ + sysbus_add_io(sbd, PXB_PCIE_HOST_BRIDGE_CONFIG_ADDR_BASE, &pci->conf_m= em); + sysbus_init_ioports(sbd, PXB_PCIE_HOST_BRIDGE_CONFIG_ADDR_BASE + g_lis= t_length(pxb_dev_list) * 8, 4); + + sysbus_add_io(sbd, PXB_PCIE_HOST_BRIDGE_CONFIG_DATA_BASE, &pci->data_m= em); + sysbus_init_ioports(sbd, PXB_PCIE_HOST_BRIDGE_CONFIG_DATA_BASE + g_lis= t_length(pxb_dev_list) * 8, 4); +} + static Property pxb_pcie_host_props[] =3D { DEFINE_PROP_UINT64(PCIE_HOST_MCFG_BASE, PXBPCIEHost, parent_obj.base_a= ddr, PCIE_BASE_ADDR_UNMAPPED), @@ -254,6 +268,7 @@ static void pxb_pcie_host_class_init(ObjectClass *class= , void *data) =20 dc->fw_name =3D "pcie"; dc->props =3D pxb_pcie_host_props; + dc->realize =3D pxb_pcie_host_realize; /* Reason: Internal part of the pxb/pxb-pcie device, not usable by its= elf */ dc->user_creatable =3D false; sbc->explicit_ofw_unit_address =3D pxb_host_ofw_unit_address; diff --git a/include/hw/pci-bridge/pci_expander_bridge.h b/include/hw/pci-b= ridge/pci_expander_bridge.h index 1119210..e6d3b67 100644 --- a/include/hw/pci-bridge/pci_expander_bridge.h +++ b/include/hw/pci-bridge/pci_expander_bridge.h @@ -7,6 +7,9 @@ #define PROP_PXB_PCIE_DOMAIN_NR "domain_nr" #define PROP_PXB_BUS_NR "bus_nr" =20 +#define PXB_PCIE_HOST_BRIDGE_CONFIG_ADDR_BASE 0x1000 +#define PXB_PCIE_HOST_BRIDGE_CONFIG_DATA_BASE 0x1004 + uint64_t pxb_pcie_mcfg_hole(void); =20 #endif --=20 2.7.4