diff options
| author | Ingo Molnar <mingo@elte.hu> | 2010-10-25 19:38:43 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-10-25 19:38:52 +0200 |
| commit | 7d7a48b76012eeee25871e1d69104dec4b6d740f (patch) | |
| tree | c27e3d8bb2e80ad93c7b4a5c850e1ffbc090bcd2 /drivers/char/tpm/tpm.c | |
| parent | e4072a9a9d186fe86293effe8828faa4be75b4a4 (diff) | |
| parent | 229aebb873e29726b91e076161649cf45154b0bf (diff) | |
Merge branch 'linus' into x86/urgent
Merge reason: We want to queue up a dependent fix.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/char/tpm/tpm.c')
| -rw-r--r-- | drivers/char/tpm/tpm.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 05ad4a17a28f..7c4133582dba 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -47,6 +47,16 @@ enum tpm_duration { #define TPM_MAX_PROTECTED_ORDINAL 12 #define TPM_PROTECTED_ORDINAL_MASK 0xFF +/* + * Bug workaround - some TPM's don't flush the most + * recently changed pcr on suspend, so force the flush + * with an extend to the selected _unused_ non-volatile pcr. + */ +static int tpm_suspend_pcr; +module_param_named(suspend_pcr, tpm_suspend_pcr, uint, 0644); +MODULE_PARM_DESC(suspend_pcr, + "PCR to use for dummy writes to faciltate flush on suspend."); + static LIST_HEAD(tpm_chip_list); static DEFINE_SPINLOCK(driver_lock); static DECLARE_BITMAP(dev_mask, TPM_NUM_DEVICES); @@ -1077,18 +1087,6 @@ static struct tpm_input_header savestate_header = { .ordinal = TPM_ORD_SAVESTATE }; -/* Bug workaround - some TPM's don't flush the most - * recently changed pcr on suspend, so force the flush - * with an extend to the selected _unused_ non-volatile pcr. - */ -static int tpm_suspend_pcr; -static int __init tpm_suspend_setup(char *str) -{ - get_option(&str, &tpm_suspend_pcr); - return 1; -} -__setup("tpm_suspend_pcr=", tpm_suspend_setup); - /* * We are about to suspend. Save the TPM state * so that it can be restored. |