diff options
| author | Jason Gunthorpe <jgunthorpe@obsidianresearch.com> | 2012-11-21 21:54:33 +0100 |
|---|---|---|
| committer | Kent Yoder <key@linux.vnet.ibm.com> | 2013-02-05 16:38:22 +0100 |
| commit | c584af1926b7626ef3bdab3354382cb2bd434d36 (patch) | |
| tree | 1d614a9e70d9a5195fa80c89f0027899c5af9531 /drivers/char/tpm/tpm.h | |
| parent | char/tpm: simplify duration calculation and eliminate smatch warning. (diff) | |
| download | linux-c584af1926b7626ef3bdab3354382cb2bd434d36.tar.xz linux-c584af1926b7626ef3bdab3354382cb2bd434d36.zip | |
TPM: Issue TPM_STARTUP at driver load if the TPM has not been started
The TPM will respond to TPM_GET_CAP with TPM_ERR_INVALID_POSTINIT if
TPM_STARTUP has not been issued. Detect this and automatically
issue TPM_STARTUP.
This is for embedded applications where the kernel is the first thing
to touch the TPM.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Peter Huewe <peter.huewe@infineon.com>
Reviewed-by: Peter Huewe <peter.huewe@infineon.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Diffstat (limited to 'drivers/char/tpm/tpm.h')
| -rw-r--r-- | drivers/char/tpm/tpm.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 8ef7649a50aa..8971b128500b 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -47,6 +47,7 @@ enum tpm_addr { #define TPM_WARN_DOING_SELFTEST 0x802 #define TPM_ERR_DEACTIVATED 0x6 #define TPM_ERR_DISABLED 0x7 +#define TPM_ERR_INVALID_POSTINIT 38 #define TPM_HEADER_SIZE 10 extern ssize_t tpm_show_pubek(struct device *, struct device_attribute *attr, @@ -291,6 +292,10 @@ struct tpm_getrandom_in { __be32 num_bytes; }__attribute__((packed)); +struct tpm_startup_in { + __be16 startup_type; +} __packed; + typedef union { struct tpm_getcap_params_out getcap_out; struct tpm_readpubek_params_out readpubek_out; @@ -301,6 +306,7 @@ typedef union { struct tpm_pcrextend_in pcrextend_in; struct tpm_getrandom_in getrandom_in; struct tpm_getrandom_out getrandom_out; + struct tpm_startup_in startup_in; } tpm_cmd_params; struct tpm_cmd_t { |