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[Qemu-devel] [PULL 09/29] xen, gfx passthrough: register a isa bridge
From: |
Stefano Stabellini |
Subject: |
[Qemu-devel] [PULL 09/29] xen, gfx passthrough: register a isa bridge |
Date: |
Thu, 10 Sep 2015 18:15:41 +0100 |
From: Tiejun Chen <address@hidden>
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>
Signed-off-by: Stefano Stabellini <address@hidden>
---
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 */
--
1.7.10.4
- [Qemu-devel] [PULL 00/29] xen-2015-09-10-tag, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 04/29] piix: create host bridge to passthrough, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 01/29] xen-hvm: Add trace to ioreq, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 10/29] xen, gfx passthrough: register host bridge specific to passthrough, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 02/29] i440fx: make types configurable at run-time, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 03/29] pc_init1: pass parameters just with types, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 07/29] xen, gfx passthrough: retrieve VGA BIOS to work, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 05/29] hw/pci-assign: split pci-assign.c, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 09/29] xen, gfx passthrough: register a isa bridge,
Stefano Stabellini <=
- [Qemu-devel] [PULL 06/29] xen, gfx passthrough: basic graphics passthrough support, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 08/29] igd gfx passthrough: create a isa bridge, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 26/29] xen/pt: Make xen_pt_unregister_device idempotent, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 13/29] xen/HVM: atomically access pointers in bufioreq handling, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 12/29] xen-hvm: When using xc_domain_add_to_physmap also include errno when reporting, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 22/29] xen/pt: Check if reg->init function sets the 'data' past the reg->size, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 28/29] xen/pt: Check for return values for xen_host_pci_[get|set] in init, Stefano Stabellini, 2015/09/10
- [Qemu-devel] [PULL 21/29] xen/pt: Sync up the dev.config and data values., Stefano Stabellini, 2015/09/10