TCG ACPI Specification Family "1.2" and "2.0" Version 1.2 Revision 8 introduces new start method for ARM SMC.
- Add new start method (type 11) for ARM SMC - Add start method specific parameters for ARM SMC start method Signed-off-by: Jiandi An <[email protected]> --- drivers/char/tpm/tpm_crb.c | 6 +++++- drivers/char/tpm/tpm_tis.c | 6 +++++- include/acpi/actbl2.h | 12 ++++++++++++ 3 files changed, 22 insertions(+), 2 deletions(-) diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c index cb6fb13..089fcf8 100644 --- a/drivers/char/tpm/tpm_crb.c +++ b/drivers/char/tpm/tpm_crb.c @@ -410,12 +410,16 @@ static int crb_acpi_add(struct acpi_device *device) struct tpm_chip *chip; struct device *dev = &device->dev; acpi_status status; + u32 default_len; u32 sm; int rc; + default_len = sizeof(struct acpi_table_tpm2) - + sizeof(union platform_params); + status = acpi_get_table(ACPI_SIG_TPM2, 1, (struct acpi_table_header **) &buf); - if (ACPI_FAILURE(status) || buf->header.length < sizeof(*buf)) { + if (ACPI_FAILURE(status) || buf->header.length < default_len) { dev_err(dev, FW_BUG "failed to get TPM2 ACPI table\n"); return -EINVAL; } diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index c7e1384..0e2e5f6 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -253,11 +253,15 @@ static int tpm_tis_acpi_init(struct acpi_device *acpi_dev) acpi_status st; struct list_head resources; struct tpm_info tpm_info = {}; + u32 default_len; int ret; + default_len = sizeof(struct acpi_table_tpm2) - + sizeof(union platform_params); + st = acpi_get_table(ACPI_SIG_TPM2, 1, (struct acpi_table_header **) &tbl); - if (ACPI_FAILURE(st) || tbl->header.length < sizeof(*tbl)) { + if (ACPI_FAILURE(st) || tbl->header.length < default_len) { dev_err(&acpi_dev->dev, FW_BUG "failed to get TPM2 ACPI table\n"); return -EINVAL; diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index 7aee9fb..9612049 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -1277,6 +1277,14 @@ struct acpi_table_tcpa_server { * ******************************************************************************/ +struct tpm2_crb_smc { + u32 interrupt; + u8 interrupt_flags; + u8 op_flags; + u16 reserved2; + u32 smc_func_id; +}; + struct acpi_table_tpm2 { struct acpi_table_header header; /* Common ACPI table header */ u16 platform_class; @@ -1285,6 +1293,9 @@ struct acpi_table_tpm2 { u32 start_method; /* Platform-specific data follows */ + union platform_params { + struct tpm2_crb_smc smc_params; + } platform_data; }; /* Values for start_method above */ @@ -1294,6 +1305,7 @@ struct acpi_table_tpm2 { #define ACPI_TPM2_MEMORY_MAPPED 6 #define ACPI_TPM2_COMMAND_BUFFER 7 #define ACPI_TPM2_COMMAND_BUFFER_WITH_START_METHOD 8 +#define ACPI_TPM2_COMMAND_BUFFER_WITH_SMC 11 /******************************************************************************* * -- Jiandi An Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ tpmdd-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/tpmdd-devel
