From f74e78220dbfec557922eb6e8ec0a78d08743e02 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Mon, 16 Sep 2024 18:10:11 +0100 Subject: acpi/pci: Move Generic Initiator object handling into acpi/pci.* 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 Tested-by: "Huang, Ying" Reviewed-by: Igor Mammedov Signed-off-by: Jonathan Cameron Message-Id: <20240916171017.1841767-7-Jonathan.Cameron@huawei.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/acpi/pci.c | 124 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 124 insertions(+) (limited to 'hw/acpi/pci.c') 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); +} -- cgit 1.4.1