diff --git a/src/acpi/acpi.c b/src/acpi/acpi.c
index 6c1828a..0874e6e 100644
--- a/src/acpi/acpi.c
+++ b/src/acpi/acpi.c
@@ -508,6 +508,23 @@
 	return mem->length;
 }
 
+int acpi_create_srat_gia_pci(acpi_srat_gia_t *gia, u32 proximity_domain,
+				u16 seg, u8 bus, u8 dev, u8 func, u32 flags)
+{
+	gia->type = ACPI_SRAT_STRUCTURE_GIA;
+	gia->length = sizeof(acpi_srat_gia_t);
+	gia->proximity_domain = proximity_domain;
+	gia->dev_handle_type = ACPI_SRAT_GIA_DEV_HANDLE_PCI;
+	/* First two bytes has segment number */
+	memcpy(gia->dev_handle, &seg, 2);
+	gia->dev_handle[2] = bus; /* Byte 2 has bus number */
+	/* Byte 3 has bits 7:3 for dev, bits 2:0 for func */
+	gia->dev_handle[3] = PCI_SLOT(dev) | PCI_FUNC(func);
+	gia->flags = flags;
+
+	return gia->length;
+}
+
 /* http://www.microsoft.com/whdc/system/sysinternals/sratdwn.mspx */
 void acpi_create_srat(acpi_srat_t *srat,
 		      unsigned long (*acpi_fill_srat)(unsigned long current))