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[Qemu-devel] [v10][PATCH 08/10] xen, gfx passthrough: register a isa bri
From: |
Tiejun Chen |
Subject: |
[Qemu-devel] [v10][PATCH 08/10] xen, gfx passthrough: register a isa bridge |
Date: |
Wed, 15 Jul 2015 13:37:48 +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>
---
v10:
* Don't extern igd_passthrough_isa_bridge_create() in the
include/hw/xen/xen.h file. Instead, move inside the
include/hw/i386/pc.h file in patch #7
v9:
* Move is_igd_vga_passthrough(dev)) from xen_igd_passthrough_isa_bridge_create()
into xen_pt_initfn().
hw/xen/xen_pt.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c
index 15b02cb..d67bccf 100644
--- a/hw/xen/xen_pt.c
+++ b/hw/xen/xen_pt.c
@@ -56,6 +56,7 @@
#include "hw/pci/pci.h"
#include "hw/xen/xen.h"
+#include "hw/i386/pc.h"
#include "hw/xen/xen_backend.h"
#include "xen_pt.h"
#include "qemu/range.h"
@@ -684,6 +685,17 @@ 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 +740,21 @@ 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 */
--
1.9.1
- [Qemu-devel] [v10][PATCH 00/10] xen: add Intel IGD passthrough, Tiejun Chen, 2015/07/15
- [Qemu-devel] [v10][PATCH 01/10] i440fx: make types configurable at run-time, Tiejun Chen, 2015/07/15
- [Qemu-devel] [v10][PATCH 03/10] piix: create host bridge to passthrough, Tiejun Chen, 2015/07/15
- [Qemu-devel] [v10][PATCH 02/10] pc_init1: pass parameters just with types, Tiejun Chen, 2015/07/15
- [Qemu-devel] [v10][PATCH 04/10] hw/pci-assign: split pci-assign.c, Tiejun Chen, 2015/07/15
- [Qemu-devel] [v10][PATCH 05/10] xen, gfx passthrough: basic graphics passthrough support, Tiejun Chen, 2015/07/15
- [Qemu-devel] [v10][PATCH 06/10] xen, gfx passthrough: retrieve VGA BIOS to work, Tiejun Chen, 2015/07/15
- [Qemu-devel] [v10][PATCH 07/10] igd gfx passthrough: create a isa bridge, Tiejun Chen, 2015/07/15
- [Qemu-devel] [v10][PATCH 08/10] xen, gfx passthrough: register a isa bridge,
Tiejun Chen <=
- [Qemu-devel] [v10][PATCH 09/10] xen, gfx passthrough: register host bridge specific to passthrough, Tiejun Chen, 2015/07/15
- [Qemu-devel] [v10][PATCH 10/10] xen, gfx passthrough: add opregion mapping, Tiejun Chen, 2015/07/15
- Re: [Qemu-devel] [v10][PATCH 00/10] xen: add Intel IGD passthrough, Stefano Stabellini, 2015/07/15