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One more place to extend IGD check #203

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merged 1 commit into from
Feb 23, 2025
Merged

One more place to extend IGD check #203

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22 changes: 22 additions & 0 deletions 0654-libxl-extend-IGD-check.patch
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,28 @@ index 35e3e1360423..5be9b8239567 100644
return true;
}

@@ -2721,7 +2721,8 @@ int libxl__grant_vga_iomem_permission(libxl__gc *gc, const uint32_t domid,

if (sysfs_dev_get_class(gc, pci, &pci_device_class))
continue;
- if (pci_device_class != 0x030000) /* VGA class */
+ if (pci_device_class != 0x030000 && /* VGA class */
+ pci_device_class != 0x038000) /* Display class */
continue;

stubdom_domid = libxl_get_stubdom_id(CTX, domid);
diff --git a/tools/firmware/hvmloader/pci.c b/tools/firmware/hvmloader/pci.c
index fe5ad75e9eb4..f87b33b28257 100644
--- a/tools/firmware/hvmloader/pci.c
+++ b/tools/firmware/hvmloader/pci.c
@@ -178,6 +178,7 @@ void pci_setup(void)
switch ( class )
{
case 0x0300:
+ case 0x0380:
/* If emulated VGA is found, preserve it as primary VGA. */
if ( (vendor_id == 0x1234) && (device_id == 0x1111) )
{
--
2.46.0

2 changes: 1 addition & 1 deletion 1017-Fix-IGD-passthrough-with-linux-stubdomain.patch
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Original file line number Diff line number Diff line change
Expand Up @@ -148,7 +148,7 @@ index 0302b5990f06..35e3e1360423 100644
unsigned long pci_device_class;

@@ -2613,30 +2724,19 @@ int libxl__grant_vga_iomem_permission(libxl__gc *gc, const uint32_t domid,
if (pci_device_class != 0x030000) /* VGA class */
pci_device_class != 0x038000) /* Display class */
continue;

- stubdom_domid = libxl_get_stubdom_id(CTX, domid);
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