From: Lakshmi Ramasubramanian <nramas@linux•microsoft.com>
To: Rob Herring <robh@kernel•org>
Cc: Mark Rutland <mark.rutland@arm•com>,
tao.li@vivo•com, Mimi Zohar <zohar@linux•ibm.com>,
Paul Mackerras <paulus@samba•org>,
vincenzo.frascino@arm•com, Frank Rowand <frowand.list@gmail•com>,
Sasha Levin <sashal@kernel•org>,
Stephen Rothwell <sfr@canb•auug.org.au>,
Masahiro Yamada <masahiroy@kernel•org>,
James Morris <jmorris@namei•org>,
"AKASHI, Takahiro" <takahiro.akashi@linaro•org>,
linux-arm-kernel <linux-arm-kernel@lists•infradead.org>,
Catalin Marinas <catalin.marinas@arm•com>,
"Serge E. Hallyn" <serge@hallyn•com>,
devicetree@vger•kernel.org,
Pavel Tatashin <pasha.tatashin@soleen•com>,
Will Deacon <will@kernel•org>,
Prakhar Srivastava <prsriva@linux•microsoft.com>,
Hsin-Yi Wang <hsinyi@chromium•org>,
Allison Randal <allison@lohutok•net>,
Christophe Leroy <christophe.leroy@c-s•fr>,
Matthias Brugger <mbrugger@suse•com>,
balajib@linux•microsoft.com, dmitry.kasatkin@gmail•com,
"linux-kernel@vger•kernel.org" <linux-kernel@vger•kernel.org>,
James Morse <james.morse@arm•com>,
Greg Kroah-Hartman <gregkh@linuxfoundation•org>,
Joe Perches <joe@perches•com>,
linux-integrity@vger•kernel.org,
linuxppc-dev <linuxppc-dev@lists•ozlabs.org>,
Thiago Jung Bauermann <bauerman@linux•ibm.com>
Subject: Re: [PATCH v19 00/13] Carry forward IMA measurement log on kexec on ARM64
Date: Tue, 2 Mar 2021 07:25:29 -0800 [thread overview]
Message-ID: <7828ec90-a768-f96f-192f-d00dec2344af@linux.microsoft.com> (raw)
In-Reply-To: <CAL_JsqKiOVo2rDhstAA-jUkMJiajHM=uwfj3JQd64h_eEfSjTw@mail.gmail.com>
On 3/2/21 7:06 AM, Rob Herring wrote:
> On Sun, Feb 21, 2021 at 11:49 AM Lakshmi Ramasubramanian
> <nramas@linux•microsoft.com> 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 f31e3386a4e9 ("ima: Free IMA measurement buffer after kexec syscall")
>> in https://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git
>> "ima-kexec-fixes" branch.
[...]
>>
>> Lakshmi Ramasubramanian (10):
>> kexec: Move ELF fields to struct kimage
>> arm64: Use ELF fields defined in 'struct kimage'
>> powerpc: Use ELF fields defined in 'struct kimage'
>> x86: Use ELF fields defined in 'struct kimage'
>> powerpc: Move ima buffer fields to struct kimage
>> powerpc: Enable passing IMA log to next kernel on kexec
>> powerpc: Move arch independent ima kexec functions to
>> drivers/of/kexec.c
>> kexec: Use fdt_appendprop_addrrange() to add ima buffer to FDT
>> powerpc: Delete unused function delete_fdt_mem_rsv()
>> arm64: Enable passing IMA log to next kernel on kexec
>>
>> Rob Herring (3):
>> of: Add a common kexec FDT setup function
>> arm64: Use common of_kexec_alloc_and_setup_fdt()
>> powerpc: Use common of_kexec_alloc_and_setup_fdt()
>>
>> arch/arm64/Kconfig | 1 +
>> arch/arm64/include/asm/kexec.h | 4 -
>> arch/arm64/kernel/machine_kexec_file.c | 194 +----------
>> arch/powerpc/Kconfig | 2 +-
>> arch/powerpc/include/asm/ima.h | 30 --
>> arch/powerpc/include/asm/kexec.h | 14 +-
>> arch/powerpc/kexec/Makefile | 7 -
>> arch/powerpc/kexec/elf_64.c | 30 +-
>> arch/powerpc/kexec/file_load.c | 183 +---------
>> arch/powerpc/kexec/file_load_64.c | 21 +-
>> arch/powerpc/kexec/ima.c | 219 ------------
>> arch/x86/include/asm/kexec.h | 5 -
>> arch/x86/kernel/crash.c | 14 +-
>> arch/x86/kernel/kexec-bzimage64.c | 2 +-
>> arch/x86/kernel/machine_kexec_64.c | 4 +-
>> drivers/of/Makefile | 6 +
>> drivers/of/kexec.c | 458 +++++++++++++++++++++++++
>> include/linux/kexec.h | 8 +
>> include/linux/of.h | 7 +
>> security/integrity/ima/ima.h | 4 -
>> security/integrity/ima/ima_kexec.c | 9 +-
>> 21 files changed, 539 insertions(+), 683 deletions(-)
>> delete mode 100644 arch/powerpc/include/asm/ima.h
>> delete mode 100644 arch/powerpc/kexec/ima.c
>> create mode 100644 drivers/of/kexec.c
>
> I fixed up the Fixes tags and applied for 5.13.
>
Thanks a lot Rob.
-lakshmi
prev parent reply other threads:[~2021-03-02 15:26 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-21 17:49 [PATCH v19 00/13] Carry forward IMA measurement log on kexec on ARM64 Lakshmi Ramasubramanian
2021-02-21 17:49 ` [PATCH v19 01/13] kexec: Move ELF fields to struct kimage Lakshmi Ramasubramanian
2021-02-24 1:03 ` Thiago Jung Bauermann
2021-02-21 17:49 ` [PATCH v19 02/13] arm64: Use ELF fields defined in 'struct kimage' Lakshmi Ramasubramanian
2021-02-24 1:07 ` Thiago Jung Bauermann
2021-02-21 17:49 ` [PATCH v19 03/13] powerpc: " Lakshmi Ramasubramanian
2021-02-24 1:07 ` Thiago Jung Bauermann
2021-02-21 17:49 ` [PATCH v19 04/13] x86: " Lakshmi Ramasubramanian
2021-02-24 1:08 ` Thiago Jung Bauermann
2021-02-24 1:13 ` Thiago Jung Bauermann
2021-02-21 17:49 ` [PATCH v19 05/13] of: Add a common kexec FDT setup function Lakshmi Ramasubramanian
2021-02-24 1:20 ` Thiago Jung Bauermann
2021-02-24 1:57 ` Lakshmi Ramasubramanian
2021-06-15 12:17 ` Geert Uytterhoeven
2021-06-15 14:01 ` Rob Herring
2021-06-15 16:13 ` nramas
2021-06-15 16:34 ` Rob Herring
2021-06-16 2:23 ` Michael Ellerman
2021-06-16 15:12 ` Rob Herring
2021-02-21 17:49 ` [PATCH v19 06/13] arm64: Use common of_kexec_alloc_and_setup_fdt() Lakshmi Ramasubramanian
2021-02-21 17:49 ` [PATCH v19 07/13] powerpc: " Lakshmi Ramasubramanian
2021-02-21 17:49 ` [PATCH v19 08/13] powerpc: Move ima buffer fields to struct kimage Lakshmi Ramasubramanian
2021-02-21 17:49 ` [PATCH v19 09/13] powerpc: Enable passing IMA log to next kernel on kexec Lakshmi Ramasubramanian
2021-02-21 17:49 ` [PATCH v19 10/13] powerpc: Move arch independent ima kexec functions to drivers/of/kexec.c Lakshmi Ramasubramanian
2021-02-21 17:49 ` [PATCH v19 11/13] kexec: Use fdt_appendprop_addrrange() to add ima buffer to FDT Lakshmi Ramasubramanian
2021-02-21 17:49 ` [PATCH v19 12/13] powerpc: Delete unused function delete_fdt_mem_rsv() Lakshmi Ramasubramanian
2021-02-21 17:49 ` [PATCH v19 13/13] arm64: Enable passing IMA log to next kernel on kexec Lakshmi Ramasubramanian
2021-03-02 15:06 ` [PATCH v19 00/13] Carry forward IMA measurement log on kexec on ARM64 Rob Herring
2021-03-02 15:25 ` Lakshmi Ramasubramanian [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=7828ec90-a768-f96f-192f-d00dec2344af@linux.microsoft.com \
--to=nramas@linux$(echo .)microsoft.com \
--cc=allison@lohutok$(echo .)net \
--cc=balajib@linux$(echo .)microsoft.com \
--cc=bauerman@linux$(echo .)ibm.com \
--cc=catalin.marinas@arm$(echo .)com \
--cc=christophe.leroy@c-s$(echo .)fr \
--cc=devicetree@vger$(echo .)kernel.org \
--cc=dmitry.kasatkin@gmail$(echo .)com \
--cc=frowand.list@gmail$(echo .)com \
--cc=gregkh@linuxfoundation$(echo .)org \
--cc=hsinyi@chromium$(echo .)org \
--cc=james.morse@arm$(echo .)com \
--cc=jmorris@namei$(echo .)org \
--cc=joe@perches$(echo .)com \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
--cc=linux-integrity@vger$(echo .)kernel.org \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=linuxppc-dev@lists$(echo .)ozlabs.org \
--cc=mark.rutland@arm$(echo .)com \
--cc=masahiroy@kernel$(echo .)org \
--cc=mbrugger@suse$(echo .)com \
--cc=pasha.tatashin@soleen$(echo .)com \
--cc=paulus@samba$(echo .)org \
--cc=prsriva@linux$(echo .)microsoft.com \
--cc=robh@kernel$(echo .)org \
--cc=sashal@kernel$(echo .)org \
--cc=serge@hallyn$(echo .)com \
--cc=sfr@canb$(echo .)auug.org.au \
--cc=takahiro.akashi@linaro$(echo .)org \
--cc=tao.li@vivo$(echo .)com \
--cc=vincenzo.frascino@arm$(echo .)com \
--cc=will@kernel$(echo .)org \
--cc=zohar@linux$(echo .)ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox