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[RFC PATCH-for-5.0] hw/pci-host: Add Kconfig selector for IGD PCIe pass-
From: |
Philippe Mathieu-Daudé |
Subject: |
[RFC PATCH-for-5.0] hw/pci-host: Add Kconfig selector for IGD PCIe pass-through |
Date: |
Fri, 22 Nov 2019 18:22:01 +0100 |
Introduce a kconfig selector to allow builds without Intel
Integrated Graphics Device GPU PCIe passthrough.
We keep the default as enabled.
Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
RFC because to be able to use the Kconfig-generated
"config-devices.h" header we have to move this device
out of $common-obj and build i440fx.o on a per-target
basis, which is not optimal...
---
hw/pci-host/i440fx.c | 9 ++++++++-
hw/vfio/pci-quirks.c | 6 ++++++
hw/pci-host/Kconfig | 5 +++++
hw/pci-host/Makefile.objs | 2 +-
4 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/hw/pci-host/i440fx.c b/hw/pci-host/i440fx.c
index f27131102d..41e93581f4 100644
--- a/hw/pci-host/i440fx.c
+++ b/hw/pci-host/i440fx.c
@@ -34,6 +34,7 @@
#include "hw/pci-host/pam.h"
#include "qapi/visitor.h"
#include "qemu/error-report.h"
+#include "config-devices.h"
/*
* I440FX chipset data sheet.
@@ -386,6 +387,8 @@ static const TypeInfo i440fx_info = {
},
};
+#ifdef CONFIG_INTEL_IGD_PASSTHROUGH
+
/* IGD Passthrough Host Bridge. */
typedef struct {
uint8_t offset;
@@ -470,6 +473,8 @@ static const TypeInfo igd_passthrough_i440fx_info = {
.class_init = igd_passthrough_i440fx_class_init,
};
+#endif /* CONFIG_INTEL_IGD_PASSTHROUGH */
+
static const char *i440fx_pcihost_root_bus_path(PCIHostState *host_bridge,
PCIBus *rootbus)
{
@@ -514,8 +519,10 @@ static const TypeInfo i440fx_pcihost_info = {
static void i440fx_register_types(void)
{
type_register_static(&i440fx_info);
- type_register_static(&igd_passthrough_i440fx_info);
type_register_static(&i440fx_pcihost_info);
+#ifdef CONFIG_INTEL_IGD_PASSTHROUGH
+ type_register_static(&igd_passthrough_i440fx_info);
+#endif /* CONFIG_INTEL_IGD_PASSTHROUGH */
}
type_init(i440fx_register_types)
diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
index 136f3a9ad6..858148fa39 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -1166,6 +1166,8 @@ static void vfio_probe_rtl8168_bar2_quirk(VFIOPCIDevice
*vdev, int nr)
trace_vfio_quirk_rtl8168_probe(vdev->vbasedev.name);
}
+#ifdef CONFIG_INTEL_IGD_PASSTHROUGH
+
/*
* Intel IGD support
*
@@ -1811,6 +1813,8 @@ out:
g_free(lpc);
}
+#endif /* CONFIG_INTEL_IGD_PASSTHROUGH */
+
/*
* Common quirk probe entry points.
*/
@@ -1860,7 +1864,9 @@ void vfio_bar_quirk_setup(VFIOPCIDevice *vdev, int nr)
vfio_probe_nvidia_bar5_quirk(vdev, nr);
vfio_probe_nvidia_bar0_quirk(vdev, nr);
vfio_probe_rtl8168_bar2_quirk(vdev, nr);
+#ifdef CONFIG_INTEL_IGD_PASSTHROUGH
vfio_probe_igd_bar4_quirk(vdev, nr);
+#endif /* CONFIG_INTEL_IGD_PASSTHROUGH */
}
void vfio_bar_quirk_exit(VFIOPCIDevice *vdev, int nr)
diff --git a/hw/pci-host/Kconfig b/hw/pci-host/Kconfig
index b0aa8351c4..0b7539765a 100644
--- a/hw/pci-host/Kconfig
+++ b/hw/pci-host/Kconfig
@@ -1,6 +1,10 @@
config PAM
bool
+config INTEL_IGD_PASSTHROUGH
+ default y
+ bool
+
config PREP_PCI
bool
select PCI
@@ -32,6 +36,7 @@ config PCI_I440FX
bool
select PCI
select PAM
+ imply INTEL_IGD_PASSTHROUGH
config PCI_EXPRESS_Q35
bool
diff --git a/hw/pci-host/Makefile.objs b/hw/pci-host/Makefile.objs
index efd752b766..3c925192dd 100644
--- a/hw/pci-host/Makefile.objs
+++ b/hw/pci-host/Makefile.objs
@@ -13,7 +13,7 @@ common-obj-$(CONFIG_VERSATILE_PCI) += versatile.o
common-obj-$(CONFIG_PCI_SABRE) += sabre.o
common-obj-$(CONFIG_FULONG) += bonito.o
-common-obj-$(CONFIG_PCI_I440FX) += i440fx.o
+obj-$(CONFIG_PCI_I440FX) += i440fx.o
common-obj-$(CONFIG_PCI_EXPRESS_Q35) += q35.o
common-obj-$(CONFIG_PCI_EXPRESS_GENERIC_BRIDGE) += gpex.o
common-obj-$(CONFIG_PCI_EXPRESS_XILINX) += xilinx-pcie.o
--
2.21.0
- [RFC PATCH-for-5.0] hw/pci-host: Add Kconfig selector for IGD PCIe pass-through,
Philippe Mathieu-Daudé <=