From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50964) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XKHFq-0002nM-6X for qemu-devel@nongnu.org; Wed, 20 Aug 2014 21:33:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XKHFk-0001ef-2u for qemu-devel@nongnu.org; Wed, 20 Aug 2014 21:33:30 -0400 Received: from mga14.intel.com ([192.55.52.115]:7150) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XKHFj-0001d4-Uv for qemu-devel@nongnu.org; Wed, 20 Aug 2014 21:33:24 -0400 From: Tiejun Chen Date: Thu, 21 Aug 2014 09:28:28 +0800 Message-Id: <1408584508-5946-3-git-send-email-tiejun.chen@intel.com> In-Reply-To: <1408584508-5946-1-git-send-email-tiejun.chen@intel.com> References: <1408584508-5946-1-git-send-email-tiejun.chen@intel.com> Subject: [Qemu-devel] [PATCH 2/2] xen:i386:pc_piix: create isa bridge specific to IGD passthrough List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: mst@redhat.com Cc: xen-devel@lists.xensource.com, allen.m.kay@intel.com, qemu-devel@nongnu.org Currenjly this ISA bridge should be fixed at 1f.0, and pass the real vendor/device ids as the driver expect. Signed-off-by: Tiejun Chen --- hw/i386/pc_piix.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index 7710724..b131fa3 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -50,7 +50,8 @@ #include "cpu.h" #include "qemu/error-report.h" #ifdef CONFIG_XEN -# include +#include +#include #endif #define MAX_IDE_BUS 2 @@ -463,6 +464,26 @@ static void pc_xen_hvm_init(MachineState *machine) } } +static void xen_igd_passthrough_isa_bridge_create(PCIBus *bus) +{ + struct PCIDevice *dev; + XenHostPCIDevice hdev; + int r = 0; + + /* This shoudl be fixed at 1f.0 then pass vendor/device ids. + */ + dev = pci_create_simple(bus, PCI_DEVFN(0x1f, 0), + "xen-igd-passthrough-isa-bridge"); + if (dev) { + r = xen_host_pci_device_get(&hdev, 0, 0, PCI_DEVFN(0x1f, 0), 0); + if (!r) { + pci_config_set_vendor_id(dev->config, hdev.vendor_id); + pci_config_set_device_id(dev->config, hdev.device_id); + } else + fprintf(stderr, "xen set xen-igd-passthrough-isa-bridge failed\n"); + } +} + static void xen_igd_passthrough_pc_hvm_init(MachineState *machine) { PCIBus *bus; @@ -472,6 +493,7 @@ static void xen_igd_passthrough_pc_hvm_init(MachineState *machine) bus = pci_find_primary_bus(); if (bus != NULL) { pci_create_simple(bus, -1, "xen-platform"); + xen_igd_passthrough_isa_bridge_create(bus); } } #endif -- 1.9.1