diff mbox series

[20/33] acpi: pci: support acpi-index for non-hotpluggable devices

Message ID 20230224153812.4176226-21-imammedo@redhat.com
State New
Headers show
Series pci(pc/q35): acpi-index support on non-hotpluggable slots | expand

Commit Message

Igor Mammedov Feb. 24, 2023, 3:37 p.m. UTC 
Inject static _DSM (EDSM) if non-hotpluggable device has
acpi-index configured on it.
It lets use acpi-index non-hotpluggable devices / devices
attached to non-hotpluggable bus.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/i386/acpi-build.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
diff mbox series

Patch

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 8db65663fc..c33b43a358 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -451,6 +451,25 @@  static Aml *aml_pci_edsm(void)
     return method;
 }
 
+static Aml *aml_pci_static_endpoint_dsm(PCIDevice *pdev)
+{
+    Aml *method;
+
+    g_assert(pdev->acpi_index != 0);
+    method = aml_method("_DSM", 4, AML_SERIALIZED);
+    {
+        Aml *params = aml_local(0);
+        Aml *pkg = aml_package(1);
+        aml_append(pkg, aml_int(pdev->acpi_index));
+        aml_append(method, aml_store(pkg, params));
+        aml_append(method,
+            aml_return(aml_call5("EDSM", aml_arg(0), aml_arg(1),
+                                 aml_arg(2), aml_arg(3), params))
+        );
+    }
+    return method;
+}
+
 static void build_append_pcihp_notify_entry(Aml *method, int slot)
 {
     Aml *if_ctx;
@@ -576,6 +595,12 @@  void build_append_pci_bus_devices(Aml *parent_scope, PCIBus *bus)
         aml_append(dev, aml_name_decl("_ADR", aml_int(adr)));
 
         call_dev_aml_func(DEVICE(bus->devices[devfn]), dev);
+        /* add _DSM if device has acpi-index set */
+        if (pdev->acpi_index && !bsel &&
+            !object_property_get_bool(OBJECT(pdev), "hotpluggable",
+                                      &error_abort)) {
+            aml_append(dev, aml_pci_static_endpoint_dsm(pdev));
+        }
 
         /* device descriptor has been composed, add it into parent context */
         aml_append(parent_scope, dev);