On 05.03.25 18:36, Stuart Yoder wrote: > Firmware Framework for Arm A-profile (FF-A) is a messaging framework > for Arm-based systems, and in the context of the TPM CRB driver is used > to signal 'start' to a CRB-based TPM service which is hosted in an > FF-A secure partition running in TrustZone. > > These patches add support for the CRB FF-A start method defined > in the TCG ACPI specification v1.4 and the FF-A ABI defined > in the Arm TPM Service CRB over FF-A (DEN0138) specification: > https://developer.arm.com/documentation/den0138/latest/ > [...] > Stuart Yoder (5): > tpm_crb: implement driver compliant to CRB over FF-A > tpm_crb: clean-up and refactor check for idle support > ACPICA: add start method for Arm FF-A > tpm_crb: add support for the Arm FF-A start method > Documentation: tpm: add documentation for the CRB FF-A interface > > Documentation/security/tpm/tpm_ffa_crb.rst | 65 ++++ > drivers/char/tpm/Kconfig | 9 + > drivers/char/tpm/Makefile | 1 + > drivers/char/tpm/tpm_crb.c | 105 +++++-- > drivers/char/tpm/tpm_crb_ffa.c | 348 +++++++++++++++++++++ > drivers/char/tpm/tpm_crb_ffa.h | 25 ++ > include/acpi/actbl3.h | 1 + > [...] My daily linux-next builds for Fedora failed building on ARM64 today. I did not bisect, but from the error message I suspect it's du to patches in this series touching drivers/char/tpm/tpm_crb.c : ld: Unexpected GOT/PLT entries detected! ld: Unexpected run-time procedure linkages detected! ld: drivers/char/tpm/tpm_crb.o: in function `crb_cancel': /builddir/foo//drivers/char/tpm/tpm_crb.c:496:(.text+0x2c0): undefined reference to `tpm_crb_ffa_start' ld: drivers/char/tpm/tpm_crb.o: in function `__crb_request_locality': /builddir/foo/drivers/char/tpm/tpm_crb.c:285:(.text+0x768): undefined reference to `tpm_crb_ffa_start' ld: drivers/char/tpm/tpm_crb.o: in function `__crb_relinquish_locality': /builddir/foo/drivers/char/tpm/tpm_crb.c:319:(.text+0x81c): undefined reference to `tpm_crb_ffa_start' ld: drivers/char/tpm/tpm_crb.o: in function `__crb_request_locality': /builddir/foo/drivers/char/tpm/tpm_crb.c:285:(.text+0x8bc): undefined reference to `tpm_crb_ffa_start' ld: drivers/char/tpm/tpm_crb.o: in function `__crb_relinquish_locality': /builddir/foo/drivers/char/tpm/tpm_crb.c:319:(.text+0x958): undefined reference to `tpm_crb_ffa_start' ld: drivers/char/tpm/tpm_crb.o:/builddir/foo/drivers/char/tpm/tpm_crb.c:474: more undefined references to `tpm_crb_ffa_start' follow ld: drivers/char/tpm/tpm_crb.o: in function `crb_acpi_add': /builddir/foo/drivers/char/tpm/tpm_crb.c:830:(.text+0x1518): undefined reference to `tpm_crb_ffa_init' make[2]: *** [scripts/Makefile.vmlinux:77: vmlinux] Error 1 make[1]: *** [/builddir/foo/Makefile:1242: vmlinux] Error 2 make: *** [Makefile:259: __sub-make] Error 2 Full log: https://download.copr.fedorainfracloud.org/results/@kernel-vanilla/next/fedora-41-aarch64/08750241-next-next-all/builder-live.log.gz Same problem on Fedora 40, 42 and 43. Ciao, Thorsten
