From: Andy I. <ad...@vm...> - 2009-07-01 01:10:20
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Several patches to improve drivers/char/tpm/tpm_tis.c: - autoload tpm_tis.ko based on acpi / pnp - fix driver/hardware bugs observed on iTPM - improve module probing printks - add workaround code for iTPM With these patches, the T500's iTPM probes ok and has reasonable contents in /sys/kernel/security/tpm0/ascii_bios_measurements: % dmesg|grep tpm [ 8.599680] tpm_tis INTC0102:00: found 0xfed40000(0x5000) [ 8.599769] tpm_tis INTC0102:00: no IRQ found in _CRS, polling mode [ 8.608607] tpm_tis INTC0102:00: 1.2 TPM (8086:1020 rev 6) [ 8.608665] tpm_tis INTC0102:00: Intel iTPM workaround enabled % sudo head -3 /sys/kernel/security/tpm0/ascii_bios_measurements 0 d6184a2d2e3a8bfae13a1ebb37d62e222bfab57d 08 [S-CRTM Version] 1 0f18524a0ed83806de3bab13c05e2dcc7a8e9c09 09 [CPU Microcode] 0 d9f7d65755c884f6c25680d577f348523006eed3 01 [POST CODE] Also, I've tested that the driver still works on Dell E4300. I'm not sure that switching to ACPI probing is either necessary or a good idea, but I wasn't able to get the pnp_driver system to load the driver on the Lenovo. drivers/char/tpm/Kconfig | 2 +- drivers/char/tpm/tpm_tis.c | 202 +++++++++++++++++------ 2 files changed, 150 insertions(+), 54 deletions(-) -andy |