[PATCH v5 06/13] acpi/pci: Move Generic Initiator object handling into acpi/pci.*

Jonathan Cameron
2024-07-12T11:11:44Z

Whilst ACPI SRAT Generic Initiator Afinity Structures are able to refer to
both PCI and ACPI Device Handles, the QEMU implementation only implements
the PCI Device Handle case. For now move the code into the existing
hw/acpi/pci.c file and header. If support for ACPI Device Handles is
added in the future, perhaps this will be moved again.

Also push the struct AcpiGenericInitiator down into the c file as not
used outside pci.c.

Suggested-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: "Huang, Ying" <ying.huang@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

---
v5: Carry forward changes from previous patch.
Move the TYPE_ACPI_GENERIC_INTIATOR define down into the c file
along with include qom/object_interfaces.h
---
include/hw/acpi/acpi_generic_initiator.h | 24 -----
include/hw/acpi/pci.h | 3 +
hw/acpi/acpi_generic_initiator.c | 120 ----------------------
hw/acpi/pci.c | 124 +++++++++++++++++++++++
hw/arm/virt-acpi-build.c | 1 -
hw/i386/acpi-build.c | 1 -
hw/acpi/meson.build | 1 -
7 files changed, 127 insertions(+), 147 deletions(-)

diff --git a/include/hw/acpi/acpi_generic_initiator.h b/include/hw/acpi/acpi_generic_initiator.h
deleted file mode 100644
index 7b98676713..0000000000
--- a/include/hw/acpi/acpi_generic_initiator.h
+++ /dev/null
@@ -1,24 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved
- */
-
-#ifndef ACPI_GENERIC_INITIATOR_H
-#define ACPI_GENERIC_INITIATOR_H
-
-#include "qom/object_interfaces.h"
-
-#define TYPE_ACPI_GENERIC_INITIATOR "acpi-generic-initiator"
-
-typedef struct AcpiGenericInitiator {
- /* private */
- Object parent;
-
- /* public */
- char *pci_dev;
- uint16_t node;
-} AcpiGenericInitiator;
-
-void build_srat_generic_pci_initiator(GArray *table_data);
-
-#endif
diff --git a/include/hw/acpi/pci.h b/include/hw/acpi/pci.h
index 467a99461c..3015a8171c 100644
--- a/include/hw/acpi/pci.h
+++ b/include/hw/acpi/pci.h
@@ -40,4 +40,7 @@ Aml *aml_pci_device_dsm(void);

void build_append_pci_bus_devices(Aml *parent_scope, PCIBus *bus);
void build_pci_bridge_aml(AcpiDevAmlIf *adev, Aml *scope);
+
+void build_srat_generic_pci_initiator(GArray *table_data);
+
#endif
diff --git a/hw/acpi/acpi_generic_initiator.c b/hw/acpi/acpi_generic_initiator.c
deleted file mode 100644
index 365feb527f..0000000000
--- a/hw/acpi/acpi_generic_initiator.c
+++ /dev/null
@@ -1,120 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved
- */
-
-#include "qemu/osdep.h"
-#include "hw/acpi/acpi_generic_initiator.h"
-#include "hw/acpi/aml-build.h"
-#include "hw/boards.h"
-#include "hw/pci/pci_device.h"
-#include "qemu/error-report.h"
-#include "qapi/error.h"
-
-typedef struct AcpiGenericInitiatorClass {
- ObjectClass parent_class;
-} AcpiGenericInitiatorClass;
-
-OBJECT_DEFINE_TYPE_WITH_INTERFACES(AcpiGenericInitiator, acpi_generic_initiator,
- ACPI_GENERIC_INITIATOR, OBJECT,
- { TYPE_USER_CREATABLE },
- { NULL })
-
-OBJECT_DECLARE_SIMPLE_TYPE(AcpiGenericInitiator, ACPI_GENERIC_INITIATOR)
-
-static void acpi_generic_initiator_init(Object *obj)
-{
- AcpiGenericInitiator *gi = ACPI_GENERIC_INITIATOR(obj);
-
- gi->node = MAX_NODES;
- gi->pci_dev = NULL;
-}
-
-static void acpi_generic_initiator_finalize(Object *obj)
-{
- AcpiGenericInitiator *gi = ACPI_GENERIC_INITIATOR(obj);
-
- g_free(gi->pci_dev);
-}
-
-static void acpi_generic_initiator_set_pci_device(Object *obj, const char *val,
- Error **errp)
-{
- AcpiGenericInitiator *gi = ACPI_GENERIC_INITIATOR(obj);
-
- gi->pci_dev = g_strdup(val);
-}
-
-static void acpi_generic_initiator_set_node(Object *obj, Visitor *v,
- const char *name, void *opaque,
- Error **errp)
-{
- AcpiGenericInitiator *gi = ACPI_GENERIC_INITIATOR(obj);
- MachineState *ms = MACHINE(qdev_get_machine());
- uint32_t value;
-
- if (!visit_type_uint32(v, name, &value, errp)) {
- return;
- }
-
- if (value >= MAX_NODES) {
- error_printf("%s: Invalid NUMA node specified\n",
- TYPE_ACPI_GENERIC_INITIATOR);
- exit(1);
- }
-
- gi->node = value;
- ms->numa_state->nodes[gi->node].has_gi = true;
-}
-
-static void acpi_generic_initiator_class_init(ObjectClass *oc, void *data)
-{
- object_class_property_add_str(oc, "pci-dev", NULL,
- acpi_generic_initiator_set_pci_device);
- object_class_property_add(oc, "node", "int", NULL,
- acpi_generic_initiator_set_node, NULL, NULL);
-}
-
-static int build_acpi_generic_initiator(Object *obj, void *opaque)
-{
- MachineState *ms = MACHINE(qdev_get_machine());
- AcpiGenericInitiator *gi;
- GArray *table_data = opaque;
- int32_t devfn;
- uint8_t bus;
- Object *o;
-
- if (!object_dynamic_cast(obj, TYPE_ACPI_GENERIC_INITIATOR)) {
- return 0;
- }
-
- gi = ACPI_GENERIC_INITIATOR(obj);
- if (gi->node >= ms->numa_state->num_nodes) {
- error_printf("%s: Specified node %d is invalid.\n",
- TYPE_ACPI_GENERIC_INITIATOR, gi->node);
- exit(1);
- }
-
- o = object_resolve_path_type(gi->pci_dev, TYPE_PCI_DEVICE, NULL);
- if (!o) {
- error_printf("%s: Specified device must be a PCI device.\n",
- TYPE_ACPI_GENERIC_INITIATOR);
- exit(1);
- }
-
- bus = object_property_get_uint(o, "busnr", &error_fatal);
- devfn = object_property_get_int(o, "addr", &error_fatal);
- /* devfn is constrained in PCI to be 8 bit but storage is an int32_t */
- assert(devfn >= 0 && devfn < PCI_DEVFN_MAX);
-
- build_srat_pci_generic_initiator(table_data, gi->node, 0, bus, devfn);
-
- return 0;
-}
-
-void build_srat_generic_pci_initiator(GArray *table_data)
-{
- object_child_foreach_recursive(object_get_root(),
- build_acpi_generic_initiator,
- table_data);
-}
diff --git a/hw/acpi/pci.c b/hw/acpi/pci.c
index 20b70dcd81..3e1db161cc 100644
--- a/hw/acpi/pci.c
+++ b/hw/acpi/pci.c
@@ -24,8 +24,13 @@
*/

#include "qemu/osdep.h"
+#include "qemu/error-report.h"
+#include "qom/object_interfaces.h"
+#include "qapi/error.h"
+#include "hw/boards.h"
#include "hw/acpi/aml-build.h"
#include "hw/acpi/pci.h"
+#include "hw/pci/pci_device.h"
#include "hw/pci/pcie_host.h"

/*
@@ -59,3 +64,122 @@ void build_mcfg(GArray *table_data, BIOSLinker *linker, AcpiMcfgInfo *info,

acpi_table_end(linker, &table);
}
+
+typedef struct AcpiGenericInitiator {
+ /* private */
+ Object parent;
+
+ /* public */
+ char *pci_dev;
+ uint16_t node;
+} AcpiGenericInitiator;
+
+typedef struct AcpiGenericInitiatorClass {
+ ObjectClass parent_class;
+} AcpiGenericInitiatorClass;
+
+#define TYPE_ACPI_GENERIC_INITIATOR "acpi-generic-initiator"
+
+OBJECT_DEFINE_TYPE_WITH_INTERFACES(AcpiGenericInitiator, acpi_generic_initiator,
+ ACPI_GENERIC_INITIATOR, OBJECT,
+ { TYPE_USER_CREATABLE },
+ { NULL })
+
+OBJECT_DECLARE_SIMPLE_TYPE(AcpiGenericInitiator, ACPI_GENERIC_INITIATOR)
+
+static void acpi_generic_initiator_init(Object *obj)
+{
+ AcpiGenericInitiator *gi = ACPI_GENERIC_INITIATOR(obj);
+
+ gi->node = MAX_NODES;
+ gi->pci_dev = NULL;
+}
+
+static void acpi_generic_initiator_finalize(Object *obj)
+{
+ AcpiGenericInitiator *gi = ACPI_GENERIC_INITIATOR(obj);
+
+ g_free(gi->pci_dev);
+}
+
+static void acpi_generic_initiator_set_pci_device(Object *obj, const char *val,
+ Error **errp)
+{
+ AcpiGenericInitiator *gi = ACPI_GENERIC_INITIATOR(obj);
+
+ gi->pci_dev = g_strdup(val);
+}
+
+static void acpi_generic_initiator_set_node(Object *obj, Visitor *v,
+ const char *name, void *opaque,
+ Error **errp)
+{
+ AcpiGenericInitiator *gi = ACPI_GENERIC_INITIATOR(obj);
+ MachineState *ms = MACHINE(qdev_get_machine());
+ uint32_t value;
+
+ if (!visit_type_uint32(v, name, &value, errp)) {
+ return;
+ }
+
+ if (value >= MAX_NODES) {
+ error_printf("%s: Invalid NUMA node specified\n",
+ TYPE_ACPI_GENERIC_INITIATOR);
+ exit(1);
+ }
+
+ gi->node = value;
+ ms->numa_state->nodes[gi->node].has_gi = true;
+}
+
+static void acpi_generic_initiator_class_init(ObjectClass *oc, void *data)
+{
+ object_class_property_add_str(oc, "pci-dev", NULL,
+ acpi_generic_initiator_set_pci_device);
+ object_class_property_add(oc, "node", "int", NULL,
+ acpi_generic_initiator_set_node, NULL, NULL);
+}
+
+static int build_acpi_generic_initiator(Object *obj, void *opaque)
+{
+ MachineState *ms = MACHINE(qdev_get_machine());
+ AcpiGenericInitiator *gi;
+ GArray *table_data = opaque;
+ int32_t devfn;
+ uint8_t bus;
+ Object *o;
+
+ if (!object_dynamic_cast(obj, TYPE_ACPI_GENERIC_INITIATOR)) {
+ return 0;
+ }
+
+ gi = ACPI_GENERIC_INITIATOR(obj);
+ if (gi->node >= ms->numa_state->num_nodes) {
+ error_printf("%s: Specified node %d is invalid.\n",
+ TYPE_ACPI_GENERIC_INITIATOR, gi->node);
+ exit(1);
+ }
+
+ o = object_resolve_path_type(gi->pci_dev, TYPE_PCI_DEVICE, NULL);
+ if (!o) {
+ error_printf("%s: Specified device must be a PCI device.\n",
+ TYPE_ACPI_GENERIC_INITIATOR);
+ exit(1);
+ }
+
+ bus = object_property_get_uint(o, "busnr", &error_fatal);
+ devfn = object_property_get_uint(o, "addr", &error_fatal);
+ /* devfn is constrained in PCI to be 8 bit but storage is an int32_t */
+ assert(devfn >= 0 && devfn < PCI_DEVFN_MAX);
+
+ build_srat_pci_generic_initiator(table_data, gi->node, 0, bus, devfn);
+
+ return 0;
+}
+
+void build_srat_generic_pci_initiator(GArray *table_data)
+{
+ object_child_foreach_recursive(object_get_root(),
+ build_acpi_generic_initiator,
+ table_data);
+}
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index e10cad86dd..a50b00b7c1 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -57,7 +57,6 @@
#include "migration/vmstate.h"
#include "hw/acpi/ghes.h"
#include "hw/acpi/viot.h"
-#include "hw/acpi/acpi_generic_initiator.h"
#include "hw/virtio/virtio-acpi.h"
#include "target/arm/multiprocessing.h"

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index f4e366f64f..ee92783836 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -68,7 +68,6 @@
#include "hw/acpi/utils.h"
#include "hw/acpi/pci.h"
#include "hw/acpi/cxl.h"
-#include "hw/acpi/acpi_generic_initiator.h"

#include "qom/qom-qobject.h"
#include "hw/i386/amd_iommu.h"
diff --git a/hw/acpi/meson.build b/hw/acpi/meson.build
index fa5c07db90..5441c9b1e4 100644
--- a/hw/acpi/meson.build
+++ b/hw/acpi/meson.build
@@ -1,6 +1,5 @@
acpi_ss = ss.source_set()
acpi_ss.add(files(
- 'acpi_generic_initiator.c',
'acpi_interface.c',
'aml-build.c',
'bios-linker-loader.c',
--
2.43.0