Hi Jordan, On Mon, 2019-08-26 at 15:46 -0700, Jordan Hand wrote: > On 6/27/19 7:19 PM, Thiago Jung Bauermann wrote: > > On the OpenPOWER platform, secure boot and trusted boot are being > > implemented using IMA for taking measurements and verifying signatures. > > Since the kernel image on Power servers is an ELF binary, kernels are > > signed using the scripts/sign-file tool and thus use the same signature > > format as signed kernel modules. > > > > This patch series adds support in IMA for verifying those signatures. > > It adds flexibility to OpenPOWER secure boot, because it allows it to boot > > kernels with the signature appended to them as well as kernels where the > > signature is stored in the IMA extended attribute. > > I know this is pretty late, but I just wanted to let you know that I > tested this patch set on x86_64 with QEMU. > > That is, I enrolled a key to _ima keyring, signed my kernel and modules > with appended signatures (with scripts/sign-file), set the IMA policy to > appraise and measure my kernel and modules. Also tested kexec appraisal. > > You can add my tested-by if you'd like. I really appreciate your testing. Based on the recent Documentation/maintainer/rebasing-and-merging.rst, I'm trying not to rebase patches already staged in linux-next. Patches are first being staged in the next-queued-testing branch. FYI, I just posted a patch that adds IMA appended signature support to test_kexec_file_load.sh. thanks, Mimi
