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[Qemu-devel] [v4][PATCH 5/5] xen:hw:i386:pc_piix: introduce new machine
From: |
Tiejun Chen |
Subject: |
[Qemu-devel] [v4][PATCH 5/5] xen:hw:i386:pc_piix: introduce new machine for IGD passthrough |
Date: |
Wed, 6 Aug 2014 14:50:35 +0800 |
Now we can introduce a new machine, xenigd, specific to IGD
passthrough. This can avoid involving other common codes.
Signed-off-by: Tiejun Chen <address@hidden>
---
hw/i386/pc_piix.c | 43 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
v4:
* Rebase
v3:
* Rebase
v2:
* Unify prefix with XEN_IGD_PASSTHROUGH/xen_igd_passthrough like patch #3
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 2bf8046..9d37f18 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -309,6 +309,15 @@ static void pc_init_pci(MachineState *machine)
TYPE_I440FX_PCI_DEVICE);
}
+
+#ifdef CONFIG_XEN
+static void xen_igd_passthrough_pc_init_pci(MachineState *machine)
+{
+ pc_init1(machine, 1, 1, TYPE_I440FX_PCI_HOST_BRIDGE,
+ TYPE_XEN_IGD_PASSTHROUGH_I440FX_PCI_DEVICE);
+}
+#endif
+
static void pc_compat_2_0(MachineState *machine)
{
/* This value depends on the actual DSDT and SSDT compiled into
@@ -457,6 +466,18 @@ static void pc_xen_hvm_init(MachineState *machine)
pci_create_simple(bus, -1, "xen-platform");
}
}
+
+static void xen_igd_passthrough_pc_hvm_init(MachineState *machine)
+{
+ PCIBus *bus;
+
+ xen_igd_passthrough_pc_init_pci(machine);
+
+ bus = pci_find_primary_bus();
+ if (bus != NULL) {
+ pci_create_simple(bus, -1, "xen-platform");
+ }
+}
#endif
#define PC_I440FX_MACHINE_OPTIONS \
@@ -906,6 +927,27 @@ static QEMUMachine xenfv_machine = {
{ /* end of list */ }
},
};
+
+static QEMUMachine xenigd_machine = {
+ PC_COMMON_MACHINE_OPTIONS,
+ .name = "xenigd",
+ .desc = "Xen Fully-virtualized PC specific to IGD",
+ .init = xen_igd_passthrough_pc_hvm_init,
+ .max_cpus = HVM_MAX_VCPUS,
+ .default_machine_opts = "accel=xen",
+ .hot_add_cpu = pc_hot_add_cpu,
+ .compat_props = (GlobalProperty[]) {
+ /* xenfv has no fwcfg and so does not load acpi from QEMU.
+ * as such new acpi features don't work.
+ */
+ {
+ .driver = "PIIX4_PM",
+ .property = "acpi-pci-hotplug-with-bridge-support",
+ .value = "off",
+ },
+ { /* end of list */ }
+ },
+};
#endif
static void pc_machine_init(void)
@@ -929,6 +971,7 @@ static void pc_machine_init(void)
qemu_register_pc_machine(&isapc_machine);
#ifdef CONFIG_XEN
qemu_register_pc_machine(&xenfv_machine);
+ qemu_register_pc_machine(&xenigd_machine);
#endif
}
--
1.9.1
- [Qemu-devel] [v4][PATCH 3/5] I440FX_PCI_DEVICE: add pci_type to index, (continued)
[Qemu-devel] [v4][PATCH 4/5] xen:hw:pci-host:piix: create host bridge to passthrough, Tiejun Chen, 2014/08/06
[Qemu-devel] [v4][PATCH 5/5] xen:hw:i386:pc_piix: introduce new machine for IGD passthrough,
Tiejun Chen <=