RHEL 9.1 with Intel TDX kernel compilation results in an error
prasadkrishnak opened this issue · comments
Hello, I've a system with RHEL 9.1 installed and have the tdx-tools from tdx-1.5 branch downloaded. Upon compiling /tdx-tools/build/rhel-9/intel-mvp-tdx-kernel/linux-tdx-kernel, it results in the following error when we've CONFIG_INTEL_TDX_HOST set to yes in the kernel config file.
Am I missing something here ?
WARNING: modpost: EXPORT symbol "__seamcall" [vmlinux] version generation failed, symbol will not be versioned.
Is "__seamcall" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: "__seamcall" [arch/x86/kvm/kvm-intel.ko] has no CRC!
CC .vmlinux.export.o
UPD include/generated/utsversion.h
CC init/version-timestamp.o
LD .tmp_vmlinux.btf
ld: arch/x86/coco/tdx/tdx-rtmr.o: in function ima_extend_rtmr': /root/tdx-tools/build/rhel-9/intel-mvp-tdx-kernel/linux-tdx-kernel/arch/x86/coco/tdx/tdx-rtmr.c:80: undefined reference to ccel_record_eventlog'
BTF .btf.vmlinux.bin.o
pahole: .tmp_vmlinux.btf: No such file or directory
LD .tmp_vmlinux.kallsyms1
.btf.vmlinux.bin.o: file not recognized: file format not recognized
make[1]: *** [scripts/Makefile.vmlinux:35: vmlinux] Error 1
make: *** [Makefile:1264: vmlinux] Error 2
With the ccel_record_eventlog() commented out in tdx-rtmr.c, compilation moves ahead. But not sure the intent of this function as it looks to be about recording the event log?
Thanks for raising the issue. The project is end of life. Please refer to Red Hat blog Enabling hardware-backed confidential computing with a CentOS SIG or Ubuntu blog Intel® TDX 1.0 technology preview available on Ubuntu 23.10 or SUSE blog Intel® TDX Support Coming to SUSE Linux Enterprise Server for more information of TDX Early Preview.