From bf8d492405feaee2c1685b3b9d5e03228ed3e47f Mon Sep 17 00:00:00 2001 From: Marcel Apfelbaum Date: Mon, 27 Jun 2016 18:38:33 +0300 Subject: [PATCH] q35: allow dynamic sysbus Allow adding sysbus devices with -device on Q35. At first Q35 will support only intel-iommu to be added this way, however the command line will support all sysbus devices. Mark with 'cannot_instantiate_with_device_add_yet' the ones causing immediate problems (e.g. crashes). Signed-off-by: Marcel Apfelbaum Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/i386/pc_q35.c | 1 + hw/pci-bridge/pci_expander_bridge.c | 2 ++ hw/pci-host/piix.c | 2 ++ hw/pci-host/q35.c | 2 ++ 4 files changed, 7 insertions(+) diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index cd57bced1a..fbaf2e6ca2 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -290,6 +290,7 @@ static void pc_q35_machine_options(MachineClass *m) m->default_machine_opts = "firmware=bios-256k.bin"; m->default_display = "std"; m->no_floppy = 1; + m->has_dynamic_sysbus = true; } static void pc_q35_2_7_machine_options(MachineClass *m) diff --git a/hw/pci-bridge/pci_expander_bridge.c b/hw/pci-bridge/pci_expander_bridge.c index ba320bd857..ab8612158d 100644 --- a/hw/pci-bridge/pci_expander_bridge.c +++ b/hw/pci-bridge/pci_expander_bridge.c @@ -149,6 +149,8 @@ static void pxb_host_class_init(ObjectClass *class, void *data) PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(class); dc->fw_name = "pci"; + /* Reason: Internal part of the pxb/pxb-pcie device, not usable by itself */ + dc->cannot_instantiate_with_device_add_yet = true; sbc->explicit_ofw_unit_address = pxb_host_ofw_unit_address; hc->root_bus_path = pxb_host_root_bus_path; } diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c index df2b0e26f5..7167e58a12 100644 --- a/hw/pci-host/piix.c +++ b/hw/pci-host/piix.c @@ -865,6 +865,8 @@ static void i440fx_pcihost_class_init(ObjectClass *klass, void *data) dc->realize = i440fx_pcihost_realize; dc->fw_name = "pci"; dc->props = i440fx_props; + /* Reason: needs to be wired up by pc_init1 */ + dc->cannot_instantiate_with_device_add_yet = true; } static const TypeInfo i440fx_pcihost_info = { diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c index 03be05dc0d..015003906a 100644 --- a/hw/pci-host/q35.c +++ b/hw/pci-host/q35.c @@ -142,6 +142,8 @@ static void q35_host_class_init(ObjectClass *klass, void *data) hc->root_bus_path = q35_host_root_bus_path; dc->realize = q35_host_realize; dc->props = mch_props; + /* Reason: needs to be wired up by pc_q35_init */ + dc->cannot_instantiate_with_device_add_yet = true; set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); dc->fw_name = "pci"; } -- 2.11.0