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| author | Nayna Jain <nayna@linux.vnet.ibm.com> | 2016-11-14 13:00:52 +0300 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2016-11-28 02:31:32 +0300 |
| commit | 748935eeb72c34368ab514a2bfdf75161768cec0 (patch) | |
| tree | 5e0b95019cee9c1bdc4501270ab74974e26a83d6 /drivers/char/tpm/tpm.h | |
| parent | 7518a21a9da39dc605ae08714ad046bfeca26f9b (diff) | |
| download | linux-748935eeb72c34368ab514a2bfdf75161768cec0.tar.xz | |
tpm: have event log use the tpm_chip
Move the backing memory for the event log into tpm_chip and push
the tpm_chip into read_log. This optimizes read_log processing by
only doing it once and prepares things for the next patches in the
series which require the tpm_chip to locate the event log via
ACPI and OF handles instead of searching.
This is straightfoward except for the issue of passing a kref through
i_private with securityfs. Since securityfs_remove does not have any
removal fencing like sysfs we use the inode lock to safely get a
kref on the tpm_chip.
Suggested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Nayna Jain <nayna@linux.vnet.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char/tpm/tpm.h')
| -rw-r--r-- | drivers/char/tpm/tpm.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 9d69580a9743..1ae976894257 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -35,6 +35,8 @@ #include <linux/cdev.h> #include <linux/highmem.h> +#include "tpm_eventlog.h" + enum tpm_const { TPM_MINOR = 224, /* officially assigned */ TPM_BUFSIZE = 4096, @@ -146,6 +148,11 @@ enum tpm_chip_flags { TPM_CHIP_FLAG_HAVE_TIMEOUTS = BIT(4), }; +struct tpm_chip_seqops { + struct tpm_chip *chip; + const struct seq_operations *seqops; +}; + struct tpm_chip { struct device dev; struct cdev cdev; @@ -157,6 +164,10 @@ struct tpm_chip { struct rw_semaphore ops_sem; const struct tpm_class_ops *ops; + struct tpm_bios_log log; + struct tpm_chip_seqops bin_log_seqops; + struct tpm_chip_seqops ascii_log_seqops; + unsigned int flags; int dev_num; /* /dev/tpm# */ |