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hw/loongarch: Add TPM device for LoongArch virt machine 

Add TPM device for LoongArch virt machine, including
establish TPM acpi info and add TYPE_TPM_TIS_SYSBUS
to dynamic_sysbus_devices list.

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20221028014007.2718352-4-yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
master
Xiaojuan Yang 2022-10-28 09:40:07 +08:00 committed by Song Gao
parent ca5bf7ad02
commit 3dfbb6dee5
No known key found for this signature in database
GPG Key ID: 40A2FFF239263EDF
2 changed files with 54 additions and 1 deletions
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51
hw/loongarch/acpi-build.c
View File

@ -31,6 +31,9 @@
#include "hw/acpi/generic_event_device.h"
#include "hw/pci-host/gpex.h"
#include "sysemu/tpm.h"
#include "hw/platform-bus.h"
#include "hw/acpi/aml-build.h"
#define ACPI_BUILD_ALIGN_SIZE 0x1000
#define ACPI_BUILD_TABLE_SIZE 0x20000
@ -275,6 +278,41 @@ static void build_pci_device_aml(Aml *scope, LoongArchMachineState *lams)
acpi_dsdt_add_gpex(scope, &cfg);
}
#ifdef CONFIG_TPM
static void acpi_dsdt_add_tpm(Aml *scope, LoongArchMachineState *vms)
{
PlatformBusDevice *pbus = PLATFORM_BUS_DEVICE(vms->platform_bus_dev);
hwaddr pbus_base = VIRT_PLATFORM_BUS_BASEADDRESS;
SysBusDevice *sbdev = SYS_BUS_DEVICE(tpm_find());
MemoryRegion *sbdev_mr;
hwaddr tpm_base;
if (!sbdev) {
return;
}
tpm_base = platform_bus_get_mmio_addr(pbus, sbdev, 0);
assert(tpm_base != -1);
tpm_base += pbus_base;
sbdev_mr = sysbus_mmio_get_region(sbdev, 0);
Aml *dev = aml_device("TPM0");
aml_append(dev, aml_name_decl("_HID", aml_string("MSFT0101")));
aml_append(dev, aml_name_decl("_STR", aml_string("TPM 2.0 Device")));
aml_append(dev, aml_name_decl("_UID", aml_int(0)));
Aml *crs = aml_resource_template();
aml_append(crs,
aml_memory32_fixed(tpm_base,
(uint32_t)memory_region_size(sbdev_mr),
AML_READ_WRITE));
aml_append(dev, aml_name_decl("_CRS", crs));
aml_append(scope, dev);
}
#endif
/* build DSDT */
static void
build_dsdt(GArray *table_data, BIOSLinker *linker, MachineState *machine)
@ -289,7 +327,9 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, MachineState *machine)
build_uart_device_aml(dsdt);
build_pci_device_aml(dsdt, lams);
build_la_ged_aml(dsdt, machine);
#ifdef CONFIG_TPM
acpi_dsdt_add_tpm(dsdt, lams);
#endif
/* System State Package */
scope = aml_scope("\\");
pkg = aml_package(4);
@ -359,6 +399,15 @@ static void acpi_build(AcpiBuildTables *tables, MachineState *machine)
lams->oem_table_id);
}
#ifdef CONFIG_TPM
/* TPM info */
if (tpm_get_version(tpm_find()) == TPM_VERSION_2_0) {
acpi_add_table(table_offsets, tables_blob);
build_tpm2(tables_blob, tables->linker,
tables->tcpalog, lams->oem_id,
lams->oem_table_id);
}
#endif
/* Add tables supplied by user (if any) */
for (u = acpi_table_first(); u; u = acpi_table_next(u)) {
unsigned len = acpi_table_len(u);

4
hw/loongarch/virt.c
View File

@ -41,6 +41,7 @@
#include "hw/platform-bus.h"
#include "hw/display/ramfb.h"
#include "hw/mem/pc-dimm.h"
#include "sysemu/tpm.h"
static void fdt_add_rtc_node(LoongArchMachineState *lams)
{
@ -960,6 +961,9 @@ static void loongarch_class_init(ObjectClass *oc, void *data)
object_class_property_set_description(oc, "acpi",
"Enable ACPI");
machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE);
#ifdef CONFIG_TPM
machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS);
#endif
}
static const TypeInfo loongarch_machine_types[] = {