diff options
| author | Tiejun Chen <tiejun.chen@intel.com> | 2015-07-15 13:37:48 +0800 |
|---|---|---|
| committer | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2015-09-10 12:04:28 +0000 |
| commit | f37d630a69992822f2eb4a47a5a5fc6a54a6dd08 (patch) | |
| tree | 641542e55f7578e7ea253d79354775e95ffed394 /hw/xen/xen_pt.c | |
| parent | bd8107d7301d3fa44f04aa435e06efb2226ca58c (diff) | |
| download | focaccia-qemu-f37d630a69992822f2eb4a47a5a5fc6a54a6dd08.tar.gz focaccia-qemu-f37d630a69992822f2eb4a47a5a5fc6a54a6dd08.zip | |
xen, gfx passthrough: register a isa bridge
Currently we just register this isa bridge when we use IGD passthrough in Xen side. Signed-off-by: Tiejun Chen <tiejun.chen@intel.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Diffstat (limited to 'hw/xen/xen_pt.c')
| -rw-r--r-- | hw/xen/xen_pt.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c index 15b02cbd98..d67bccff3a 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 */ |