diff options
Diffstat (limited to 'hw/arm/sysbus-fdt.c')
| -rw-r--r-- | hw/arm/sysbus-fdt.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/hw/arm/sysbus-fdt.c b/hw/arm/sysbus-fdt.c index 022fc97ecd..6b6906f4cf 100644 --- a/hw/arm/sysbus-fdt.c +++ b/hw/arm/sysbus-fdt.c @@ -30,6 +30,7 @@ #include "hw/arm/sysbus-fdt.h" #include "qemu/error-report.h" #include "sysemu/device_tree.h" +#include "sysemu/tpm.h" #include "hw/platform-bus.h" #include "hw/vfio/vfio-platform.h" #include "hw/vfio/vfio-calxeda-xgmac.h" @@ -436,6 +437,37 @@ static bool vfio_platform_match(SysBusDevice *sbdev, #endif /* CONFIG_LINUX */ +/* + * add_tpm_tis_fdt_node: Create a DT node for TPM TIS + * + * See kernel documentation: + * Documentation/devicetree/bindings/security/tpm/tpm_tis_mmio.txt + * Optional interrupt for command completion is not exposed + */ +static int add_tpm_tis_fdt_node(SysBusDevice *sbdev, void *opaque) +{ + PlatformBusFDTData *data = opaque; + PlatformBusDevice *pbus = data->pbus; + void *fdt = data->fdt; + const char *parent_node = data->pbus_node_name; + char *nodename; + uint32_t reg_attr[2]; + uint64_t mmio_base; + + mmio_base = platform_bus_get_mmio_addr(pbus, sbdev, 0); + nodename = g_strdup_printf("%s/tpm_tis@%" PRIx64, parent_node, mmio_base); + qemu_fdt_add_subnode(fdt, nodename); + + qemu_fdt_setprop_string(fdt, nodename, "compatible", "tcg,tpm-tis-mmio"); + + reg_attr[0] = cpu_to_be32(mmio_base); + reg_attr[1] = cpu_to_be32(0x5000); + qemu_fdt_setprop(fdt, nodename, "reg", reg_attr, 2 * sizeof(uint32_t)); + + g_free(nodename); + return 0; +} + static int no_fdt_node(SysBusDevice *sbdev, void *opaque) { return 0; @@ -456,6 +488,7 @@ static const BindingEntry bindings[] = { TYPE_BINDING(TYPE_VFIO_AMD_XGBE, add_amd_xgbe_fdt_node), VFIO_PLATFORM_BINDING("amd,xgbe-seattle-v1a", add_amd_xgbe_fdt_node), #endif + TYPE_BINDING(TYPE_TPM_TIS_SYSBUS, add_tpm_tis_fdt_node), TYPE_BINDING(TYPE_RAMFB_DEVICE, no_fdt_node), TYPE_BINDING("", NULL), /* last element */ }; |