diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/tpm/Kconfig | 14 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm_tis.c | 40 |
2 files changed, 32 insertions, 22 deletions
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig index f5fc64f89c5c..bfc2c26780fb 100644 --- a/drivers/char/tpm/Kconfig +++ b/drivers/char/tpm/Kconfig @@ -17,20 +17,28 @@ menuconfig TCG_TPM obtained at: <http://sourceforge.net/projects/trousers>. To compile this driver as a module, choose M here; the module will be called tpm. If unsure, say N. - Note: For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI - and CONFIG_PNPACPI. + Note: For more TPM drivers and BIOS LOG access enable + CONFIG_PNP, CONFIG_ACPI and CONFIG_PNPACPI. if TCG_TPM config TCG_TIS tristate "TPM Interface Specification 1.2 Interface" - depends on PNP ---help--- If you have a TPM security chip that is compliant with the TCG TIS 1.2 TPM specification say Yes and it will be accessible from within Linux. To compile this driver as a module, choose M here; the module will be called tpm_tis. +config TCG_BIOS_LOG + bool "TPM bios mesurement log" + depends on X86 + select ACPI + ---help--- + ACPI is required for access to bios measurements lists and therefore + to validate the PCR[0] value. So say Yes in case you want this + feature and, consequently, ACPI will be enabled. + config TCG_NSC tristate "National Semiconductor TPM Interface" ---help--- diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index 2405f17b29dd..04a18bffb730 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -597,7 +597,7 @@ out_err: tpm_remove_hardware(chip->dev); return rc; } - +#ifdef CONFIG_PNP static int __devinit tpm_tis_pnp_init(struct pnp_dev *pnp_dev, const struct pnp_device_id *pnp_id) { @@ -662,7 +662,7 @@ static struct pnp_driver tis_pnp_driver = { module_param_string(hid, tpm_pnp_tbl[TIS_HID_USR_IDX].id, sizeof(tpm_pnp_tbl[TIS_HID_USR_IDX].id), 0444); MODULE_PARM_DESC(hid, "Set additional specific HID for this driver to probe"); - +#endif static int tpm_tis_suspend(struct platform_device *dev, pm_message_t msg) { return tpm_pm_suspend(&dev->dev, msg); @@ -689,21 +689,21 @@ MODULE_PARM_DESC(force, "Force device probe rather than using ACPI entry"); static int __init init_tis(void) { int rc; +#ifdef CONFIG_PNP + if (!force) + return pnp_register_driver(&tis_pnp_driver); +#endif - if (force) { - rc = platform_driver_register(&tis_drv); - if (rc < 0) - return rc; - if (IS_ERR(pdev=platform_device_register_simple("tpm_tis", -1, NULL, 0))) - return PTR_ERR(pdev); - if((rc=tpm_tis_init(&pdev->dev, TIS_MEM_BASE, TIS_MEM_LEN, 0)) != 0) { - platform_device_unregister(pdev); - platform_driver_unregister(&tis_drv); - } + rc = platform_driver_register(&tis_drv); + if (rc < 0) return rc; + if (IS_ERR(pdev=platform_device_register_simple("tpm_tis", -1, NULL, 0))) + return PTR_ERR(pdev); + if((rc=tpm_tis_init(&pdev->dev, TIS_MEM_BASE, TIS_MEM_LEN, 0)) != 0) { + platform_device_unregister(pdev); + platform_driver_unregister(&tis_drv); } - - return pnp_register_driver(&tis_pnp_driver); + return rc; } static void __exit cleanup_tis(void) @@ -727,12 +727,14 @@ static void __exit cleanup_tis(void) list_del(&i->list); } spin_unlock(&tis_lock); - - if (force) { - platform_device_unregister(pdev); - platform_driver_unregister(&tis_drv); - } else +#ifdef CONFIG_PNP + if (!force) { pnp_unregister_driver(&tis_pnp_driver); + return; + } +#endif + platform_device_unregister(pdev); + platform_driver_unregister(&tis_drv); } module_init(init_tis); |