[coreboot-gerrit] Change in coreboot[master]: mb/emulation/qemu-i440fx: Add acpi_name handler for QEMU

[Duncan Laurie (Code Review)]

Duncan Laurie has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/39835 )

Change subject: mb/emulation/qemu-i440fx: Add acpi_name handler for QEMU
......................................................................

mb/emulation/qemu-i440fx: Add acpi_name handler for QEMU

QEMU does not have a separate northbridge chip, so the mainboard
needs to handle the ACPI name and paths so that devices can get
generated into the SSDT properly.  This fixes the PIRQ and TPM
table generation.

Change-Id: Ifc7d4359eea38ac0b55d655e39191ae7f8655fe4
Signed-off-by: Duncan Laurie 
---
M src/mainboard/emulation/qemu-i440fx/northbridge.c
1 file changed, 17 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/35/39835/1

diff --git a/src/mainboard/emulation/qemu-i440fx/northbridge.c b/src/mainboard/emulation/qemu-i440fx/northbridge.c
index 7e067a4..de96029 100644
--- a/src/mainboard/emulation/qemu-i440fx/northbridge.c
+++ b/src/mainboard/emulation/qemu-i440fx/northbridge.c
@@ -229,6 +229,20 @@
    return len;
 }
 #endif
+
+#if CONFIG(HAVE_ACPI_TABLES)
+static const char *qemu_acpi_name(const struct device *dev)
+{
+	if (dev->path.type == DEVICE_PATH_DOMAIN)
+		return "PCI0";
+
+	if (dev->path.type != DEVICE_PATH_PCI || dev->bus->secondary != 0)
+		return NULL;
+
+	return NULL;
+}
+#endif
+
 static struct device_operations pci_domain_ops = {
    .read_resources		= cpu_pci_domain_read_resources,
    .set_resources		= cpu_pci_domain_set_resources,
@@ -238,6 +252,9 @@
 #if CONFIG(GENERATE_SMBIOS_TABLES)
    .get_smbios_data	= qemu_get_smbios_data,
 #endif
+#if CONFIG(HAVE_ACPI_TABLES)
+	.acpi_name		= qemu_acpi_name,
+#endif
 };

static void cpu_bus_init(struct device *dev)