* Test for TPM TIS on I2C bus
@ 2023-03-22 18:14 Stefan Berger
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From: Stefan Berger @ 2023-03-22 18:14 UTC (permalink / raw)
To: qemu-devel, Marc-André Lureau, Philippe Mathieu-Daudé,
Thomas Huth
Cc: Cédric Le Goater, ninadpalsule
Hello!
Ninad wrote an emulator for TPM TIS on I2C bus and I was wondering how one could implement a test case for it so that we can for example read and write registers. All existing TPM test cases are using qtest API and we spawn a thread to emulate a TPM and use the qtest API to read/write the ISA TIS's MMIO registers. The test cases that I see for i2c are all using the qos type of API. I have tried to use both in a test case but I am not sure whether they go together at all (from the errors I have seen they don't go together). So what options would we have? I thought that one could maybe write an i2c driver to transfer bytes to the device but the i2c in hw/i2c/aspeed_i2c.c looks complex to reverse engineer to try to get a byte to a connected device. Do you have any other suggestions?
Regards,
Stefan
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