Messages in this thread |  | | Subject | Re: [tpmdd-devel] [PATCH] tpm: improve tpm_tis send() performance by ignoring burstcount | From | Ken Goldman <> | Date | Tue, 15 Aug 2017 18:02:57 -0400 |
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On 8/13/2017 7:53 PM, msuchanek wrote: > About 500 out of 700 mainboards sold today has a PS/2 port which is > probably due to prevalence of legacy devices and usbhid limitations. > > Similarily many boards have serial and parallel hardware ports. > > In all diagrams detailed enough to show these ports I have seen them > attached to the LPC bus.
Do these boards have a TPM? Remember that the TPM requires special LPC bus cycles.
Even if so, the TPM LPC bus wait states are less than a usec. My thought is that it's unlikely that any device (serial port, mouse, keyboard, printer) will be adversely affected.
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