[SeaBIOS] [Qemu-devel] [PATCH v5 for-2.3 10/28] hw/acpi: add support for multiple root busses
Marcel Apfelbaum
marcel at redhat.com
Tue Mar 10 16:31:56 CET 2015
If the machine has several root busses, we need to add them to
acpi in order to be properly detected by guests.
Signed-off-by: Marcel Apfelbaum <marcel at redhat.com>
---
hw/i386/acpi-build.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index d0a5c85..3e2701b 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -60,6 +60,8 @@
#include "qom/qom-qobject.h"
#include "exec/ram_addr.h"
+#include "qmp-commands.h"
+
/* These are used to size the ACPI tables for -M pc-i440fx-1.7 and
* -M pc-i440fx-2.0. Even if the actual amount of AML generated grows
* a little bit, there should be plenty of free space since the DSDT
@@ -670,6 +672,36 @@ build_ssdt(GArray *table_data, GArray *linker,
/* Reserve space for header */
acpi_data_push(ssdt->buf, sizeof(AcpiTableHeader));
+ {
+ PciInfoList *info_list, *info;
+ Error *err = NULL;
+
+ info_list = qmp_query_pci(&err);
+ if (err) {
+ error_free(err);
+ return;
+ }
+
+ for (info = info_list; info; info = info->next) {
+ PciInfo *bus_info = info->value;
+
+ if (bus_info->bus == 0) {
+ continue;
+ }
+
+ scope = aml_scope("\\_SB");
+ dev = aml_device("PC%.02X", (uint8_t)bus_info->bus);
+ aml_append(dev, aml_name_decl("_UID",
+ aml_string("PC%.02X", (uint8_t)bus_info->bus)));
+ aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A03")));
+ aml_append(dev,
+ aml_name_decl("_BBN", aml_int((uint8_t)bus_info->bus)));
+ aml_append(scope, dev);
+ aml_append(ssdt, scope);
+ }
+ qapi_free_PciInfoList(info_list);
+ }
+
scope = aml_scope("\\_SB.PCI0");
/* build PCI0._CRS */
crs = aml_resource_template();
--
2.1.0
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