From: Iris Chen <irische...@fb.com> Hey everyone,
Thanks for all your comments on the SPI GPIO model. I am working through them. As for adding support for SPI-based TPMs in QEMU, this RFC patch adds SPI support in the QEMU TPM implementation via tpm_tis_spi.c. The QEMU tree already has support for two connection methods to the TPM: mmio (isa for x86, sysbus for arm) and “spapr”. This patch adds a new SPI bus implementation for the TPM. Specifically, this SPI bus implementation connects to the Yosemite-v3.5 model using the SPI-GPIO model sent earlier last week. I have already tested these implementations locally together and can verify that the Linux kernel can successfully probe the TPM device on Yosemite-v3.5 and we can run the TPM command line tools to interact with it. Please let me know what you think about this! Thanks, Iris Iris Chen (1): hw: tpmtisspi: add SPI support to QEMU TPM implementation configs/devices/arm-softmmu/default.mak | 1 + hw/arm/Kconfig | 5 + hw/tpm/Kconfig | 5 + hw/tpm/meson.build | 1 + hw/tpm/tpm_tis_spi.c | 311 ++++++++++++++++++++++++ include/sysemu/tpm.h | 3 + 6 files changed, 326 insertions(+) create mode 100644 hw/tpm/tpm_tis_spi.c -- 2.30.2
