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[Qemu-devel] [v9][PATCH 08/10] xen, gfx passthrough: register a isa brid
From: |
Tiejun Chen |
Subject: |
[Qemu-devel] [v9][PATCH 08/10] xen, gfx passthrough: register a isa bridge |
Date: |
Tue, 7 Jul 2015 13:33:09 +0800 |
Currently we just register this isa bridge when we use IGD
passthrough in Xen side.
Signed-off-by: Tiejun Chen <address@hidden>
Acked-by: Stefano Stabellini <address@hidden>
---
v9:
* Move is_igd_vga_passthrough(dev)) from xen_igd_passthrough_isa_bridge_create()
into xen_pt_initfn().
hw/xen/xen_pt.c | 21 +++++++++++++++++++++
include/hw/xen/xen.h | 1 +
2 files changed, 22 insertions(+)
diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c
index 15b02cb..f764131 100644
--- a/hw/xen/xen_pt.c
+++ b/hw/xen/xen_pt.c
@@ -684,6 +684,17 @@ static const MemoryListener xen_pt_io_listener = {
.priority = 10,
};
+static void
+xen_igd_passthrough_isa_bridge_create(XenPCIPassthroughState *s,
+ XenHostPCIDevice *dev)
+{
+ uint16_t gpu_dev_id;
+ PCIDevice *d = &s->dev;
+
+ gpu_dev_id = dev->device_id;
+ igd_passthrough_isa_bridge_create(d->bus, gpu_dev_id);
+}
+
/* init */
static int xen_pt_initfn(PCIDevice *d)
@@ -728,11 +739,21 @@ static int xen_pt_initfn(PCIDevice *d)
/* Setup VGA bios for passthrough GFX */
if ((s->real_device.domain == 0) && (s->real_device.bus == 0) &&
(s->real_device.dev == 2) && (s->real_device.func == 0)) {
+ if (!is_igd_vga_passthrough(&s->real_device)) {
+ XEN_PT_ERR(d, "Need to enable igd-passthru if you're trying"
+ " to passthrough IGD GFX.\n");
+ xen_host_pci_device_put(&s->real_device);
+ return -1;
+ }
+
if (xen_pt_setup_vga(s, &s->real_device) < 0) {
XEN_PT_ERR(d, "Setup VGA BIOS of passthrough GFX failed!\n");
xen_host_pci_device_put(&s->real_device);
return -1;
}
+
+ /* Register ISA bridge for passthrough GFX. */
+ xen_igd_passthrough_isa_bridge_create(s, &s->real_device);
}
/* Handle real device's MMIO/PIO BARs */
diff --git a/include/hw/xen/xen.h b/include/hw/xen/xen.h
index 4356af4..703148e 100644
--- a/include/hw/xen/xen.h
+++ b/include/hw/xen/xen.h
@@ -51,4 +51,5 @@ void xen_register_framebuffer(struct MemoryRegion *mr);
# define HVM_MAX_VCPUS 32
#endif
+extern void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t
gpu_dev_id);
#endif /* QEMU_HW_XEN_H */
--
1.9.1
- [Qemu-devel] [v9][PATCH 00/10] xen: add Intel IGD passthrough, Tiejun Chen, 2015/07/07
- [Qemu-devel] [v9][PATCH 02/10] pc_init1: pass parameters just with types, Tiejun Chen, 2015/07/07
- [Qemu-devel] [v9][PATCH 03/10] piix: create host bridge to passthrough, Tiejun Chen, 2015/07/07
- [Qemu-devel] [v9][PATCH 01/10] i440fx: make types configurable at run-time, Tiejun Chen, 2015/07/07
- [Qemu-devel] [v9][PATCH 05/10] xen, gfx passthrough: basic graphics passthrough support, Tiejun Chen, 2015/07/07
- [Qemu-devel] [v9][PATCH 04/10] hw/pci-assign: split pci-assign.c, Tiejun Chen, 2015/07/07
- [Qemu-devel] [v9][PATCH 06/10] xen, gfx passthrough: retrieve VGA BIOS to work, Tiejun Chen, 2015/07/07
- [Qemu-devel] [v9][PATCH 07/10] igd gfx passthrough: create a isa bridge, Tiejun Chen, 2015/07/07
- [Qemu-devel] [v9][PATCH 08/10] xen, gfx passthrough: register a isa bridge,
Tiejun Chen <=
- Re: [Qemu-devel] [v9][PATCH 08/10] xen, gfx passthrough: register a isa bridge, Stefano Stabellini, 2015/07/13
- Re: [Qemu-devel] [v9][PATCH 08/10] xen, gfx passthrough: register a isa bridge, Michael S. Tsirkin, 2015/07/13
- Re: [Qemu-devel] [v9][PATCH 08/10] xen, gfx passthrough: register a isa bridge, Chen, Tiejun, 2015/07/14
- Re: [Qemu-devel] [v9][PATCH 08/10] xen, gfx passthrough: register a isa bridge, Michael S. Tsirkin, 2015/07/14
[Qemu-devel] [v9][PATCH 09/10] xen, gfx passthrough: register host bridge specific to passthrough, Tiejun Chen, 2015/07/07
[Qemu-devel] [v9][PATCH 10/10] xen, gfx passthrough: add opregion mapping, Tiejun Chen, 2015/07/07