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xen, gfx passthrough: basic graphics passthrough support

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basic gfx passthrough support:
- add a vga type for gfx passthrough
- register/unregister legacy VGA I/O ports and MMIOs for passthrough GFX

Signed-off-by: Tiejun Chen <tiejun.chen@intel.com>
Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This commit is contained in:
Tiejun Chen 2015-07-15 13:37:45 +08:00 • committed by Stefano Stabellini
parent bcd7461e7e
commit 798141799c
10 changed files with 165 additions and 1 deletions
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4
hw/xen/xen_pt.c
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@ -502,6 +502,7 @@ static int xen_pt_register_regions(XenPCIPassthroughState *s, uint16_t *cmd)
d->rom.size, d->rom.base_addr);
}
xen_pt_register_vga_regions(d);
return 0;
}
@ -801,6 +802,7 @@ out:
static void xen_pt_unregister_device(PCIDevice *d)
{
XenPCIPassthroughState *s = XEN_PT_DEVICE(d);
XenHostPCIDevice *host_dev = &s->real_device;
uint8_t machine_irq = s->machine_irq;
uint8_t intx = xen_pt_pci_intx(s);
int rc;
@ -844,6 +846,8 @@ static void xen_pt_unregister_device(PCIDevice *d)
/* delete all emulated config registers */
xen_pt_config_delete(s);
xen_pt_unregister_vga_regions(host_dev);
memory_listener_unregister(&s->memory_listener);
memory_listener_unregister(&s->io_listener);