diff options
| -rw-r--r-- | drivers/pci/host/vmd.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pci/host/vmd.c b/drivers/pci/host/vmd.c index e27ad2a3bd33..53aa1d4b17e8 100644 --- a/drivers/pci/host/vmd.c +++ b/drivers/pci/host/vmd.c @@ -539,7 +539,10 @@ static void vmd_detach_resources(struct vmd_dev *vmd) } /* - * VMD domains start at 0x1000 to not clash with ACPI _SEG domains. + * VMD domains start at 0x10000 to not clash with ACPI _SEG domains. + * Per ACPI r6.0, sec 6.5.6, _SEG returns an integer, of which the lower + * 16 bits are the PCI Segment Group (domain) number. Other bits are + * currently reserved. */ static int vmd_find_free_domain(void) { |