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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <601825013d67584b0d2de7a973b806ec3cbc05ca.camel@linux.ibm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210112_132417_641161_2D2B7E55 X-CRM114-Status: GOOD ( 21.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, benh@kernel.crashing.org, bhsharma@redhat.com, tao.li@vivo.com, paulus@samba.org, vincenzo.frascino@arm.com, frowand.list@gmail.com, sashal@kernel.org, mpe@ellerman.id.au, masahiroy@kernel.org, jmorris@namei.org, takahiro.akashi@linaro.org, linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com, serge@hallyn.com, devicetree@vger.kernel.org, pasha.tatashin@soleen.com, will@kernel.org, linuxppc-dev@vger.kernel.org, prsriva@linux.microsoft.com, hsinyi@chromium.org, allison@lohutok.net, christophe.leroy@c-s.fr, mbrugger@suse.com, balajib@linux.microsoft.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, james.morse@arm.com, dmitry.kasatkin@gmail.com, linux-integrity@vger.kernel.org, bauerman@linux.ibm.com Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 1/12/21 10:05 AM, Mimi Zohar wrote: > On Tue, 2021-01-12 at 08:42 -0600, Rob Herring wrote: >> On Mon, Jan 04, 2021 at 11:25:56AM -0800, Lakshmi Ramasubramanian wrote: >>> On kexec file load Integrity Measurement Architecture (IMA) subsystem >>> may verify the IMA signature of the kernel and initramfs, and measure >>> it. The command line parameters passed to the kernel in the kexec call >>> may also be measured by IMA. A remote attestation service can verify >>> a TPM quote based on the TPM event log, the IMA measurement list, and >>> the TPM PCR data. This can be achieved only if the IMA measurement log >>> is carried over from the current kernel to the next kernel across >>> the kexec call. >>> >>> powerpc already supports carrying forward the IMA measurement log on >>> kexec. This patch set adds support for carrying forward the IMA >>> measurement log on kexec on ARM64. >>> >>> This patch set moves the platform independent code defined for powerpc >>> such that it can be reused for other platforms as well. A chosen node >>> "linux,ima-kexec-buffer" is added to the DTB for ARM64 to hold >>> the address and the size of the memory reserved to carry >>> the IMA measurement log. >>> >>> This patch set has been tested for ARM64 platform using QEMU. >>> I would like help from the community for testing this change on powerpc. >>> Thanks. >>> >>> This patch set is based on >>> commit a29a64445089 ("powerpc: Use common of_kexec_setup_new_fdt()") >>> in https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git >>> "dt/kexec" branch. >> >> This all looks good to me. I'd suggest you send the above patches out as >> part of this series because I don't plan to do so. >> >> I would like to also resolve the vmalloc vs. kmalloc difference for >> allocating the FDT. Then we can further consolidate the DT kexec code. >> >> It all needs some acks from arm64 and powerpc maintainers. As far as >> merging, I think via the integrity tree makes the most sense. > > Thanks, Rob. Lakshmi, please update Rob's patches to include patch > descriptions before re-posting. > Will do Mimi. thanks, -lakshmi _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel