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* [RFC PATCH v1 0/1] Add support for arm64 to carry ima measurement log in kexec_file_load
@ 2019-09-13 22:50 Prakhar Srivastava
  2019-09-13 22:50 ` [RFC PATCH v1 1/1] " Prakhar Srivastava
  0 siblings, 1 reply; 13+ messages in thread
From: Prakhar Srivastava @ 2019-09-13 22:50 UTC (permalink / raw)
  To: linux-kernel, linux-arm-kernel, linux-integrity, kexec
  Cc: mark.rutland, jean-philippe, arnd, takahiro.akashi, sboyd,
	catalin.marinas, zohar, yamada.masahiro, kristina.martsenko,
	duwe, bauerman, james.morse, tglx, allison

Add support for arm64 to carry ima measurement log
to the next kexec'ed session triggered via kexec_file_load.
- Top of Linux 5.3-rc6

Currently during kexec the kernel file signatures are/can be validated
prior to actual load, the information(PE/ima signature) is not carried
to the next session. This lead to loss of information.

Carrying forward the ima measurement log to the next kexec'ed session 
allows a verifying party to get the entire runtime event log since the
last full reboot, since that is when PCRs were last reset.

Changelog:

v1:
  - add new fdt porperties to mark start and end for ima measurement
    log.
  - use fdt_* functions to add/remove fdt properties and memory
    allocations.
  - remove additional check for endian-ness as they are checked
    in fdt_* functions.

v0:
  - Add support to carry ima measurement log in arm64, 
   uses same code as powerpc.

Prakhar Srivastava (1):
  Add support for arm64 to carry ima measurement log in kexec_file_load

 arch/arm64/Kconfig                     |   7 +
 arch/arm64/include/asm/ima.h           |  29 ++++
 arch/arm64/include/asm/kexec.h         |   5 +
 arch/arm64/kernel/Makefile             |   3 +-
 arch/arm64/kernel/ima_kexec.c          | 213 +++++++++++++++++++++++++
 arch/arm64/kernel/machine_kexec_file.c |   6 +
 6 files changed, 262 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/include/asm/ima.h
 create mode 100644 arch/arm64/kernel/ima_kexec.c

-- 
2.17.1


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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 13+ messages in thread
* [RFC PATCH v1 0/1] Add support for arm64 to carry ima measurement log in kexec_file_load
@ 2019-09-09 23:14 " Prakhar Srivastava
  0 siblings, 0 replies; 13+ messages in thread
From: Prakhar Srivastava @ 2019-09-09 23:14 UTC (permalink / raw)
  To: linux-kernel, linux-arm-kernel
  Cc: mark.rutland, jean-philippe, arnd, takahiro.akashi, sboyd,
	catalin.marinas, zohar, yamada.masahiro, kristina.martsenko,
	duwe, bauerman, james.morse, tglx, allison

Add support for arm64 to carry ima measurement log
to the next kexec'ed session triggered via kexec_file_load.
- Top of Linux 5.3-rc6

Currently during kexec the kernel file signatures are/can be validated
prior to actual load, the information(PE/ima signature) is not carried
to the next session. This lead to loss of information.

Carrying forward the ima measurement log to the next kexec'ed session 
allows a verifying party to get the entire runtime event log since the
last full reboot, since that is when PCRs were last reset.

Changelog:

v1:
  - add new fdt porperties to mark start and end for ima measurement
    log.
  - use fdt_* functions to add/remove fdt properties and memory
    allocations.
  - remove additional check for endian-ness as they are checked
    in fdt_* functions.

v0:
  - Add support to carry ima measurement log in arm64, 
   uses same code as powerpc.

Prakhar Srivastava (1):
  Add support for arm64 to carry ima measurement log in kexec_file_load

 arch/arm64/Kconfig                     |   7 +
 arch/arm64/include/asm/ima.h           |  29 ++++
 arch/arm64/include/asm/kexec.h         |   5 +
 arch/arm64/kernel/Makefile             |   3 +-
 arch/arm64/kernel/ima_kexec.c          | 213 +++++++++++++++++++++++++
 arch/arm64/kernel/machine_kexec_file.c |   6 +
 6 files changed, 262 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/include/asm/ima.h
 create mode 100644 arch/arm64/kernel/ima_kexec.c

-- 
2.17.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 13+ messages in thread
* [RFC][PATCH v1 0/1] Add support for arm64 to carry ima measurement log in kexec_file_load
@ 2019-09-06 23:51 " Prakhar Srivastava
  2019-09-07  3:56 ` Stephen Boyd
  0 siblings, 1 reply; 13+ messages in thread
From: Prakhar Srivastava @ 2019-09-06 23:51 UTC (permalink / raw)
  To: linux-kernel, linux-arm-kernel
  Cc: mark.rutland, jean-philippe, arnd, takahiro.akashi, sboyd,
	catalin.marinas, yamada.masahiro, kristina.martsenko, duwe,
	bauerman, james.morse, tglx, allison

Add support for arm64 to carry ima measurement log
to the next kexec'ed session triggered via kexec_file_load.
- Top of Linux 5.3-rc6

Currently during kexec the kernel file signatures are/can be validated
prior to actual load, the information(PE/ima signature) is not carried
to the next session. This lead to loss of information.

Carrying forward the ima measurement log to the next kexec'ed session.
This allows a verifying party to get the entire runtime event log since
the last full reboot since that is when PCRs were last reset.

Prakhar Srivastava (1):
  Add support for arm64 to carry ima measurement log in kexec_file_load

 arch/arm64/Kconfig                     |   7 +
 arch/arm64/include/asm/ima.h           |  29 ++++
 arch/arm64/include/asm/kexec.h         |   5 +
 arch/arm64/kernel/Makefile             |   3 +-
 arch/arm64/kernel/ima_kexec.c          | 213 +++++++++++++++++++++++++
 arch/arm64/kernel/machine_kexec_file.c |   6 +
 6 files changed, 262 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/include/asm/ima.h
 create mode 100644 arch/arm64/kernel/ima_kexec.c

-- 
2.17.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 13+ messages in thread

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Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-09-13 22:50 [RFC PATCH v1 0/1] Add support for arm64 to carry ima measurement log in kexec_file_load Prakhar Srivastava
2019-09-13 22:50 ` [RFC PATCH v1 1/1] " Prakhar Srivastava
2019-09-18 14:15   ` Mimi Zohar
2019-09-18 21:21     ` Mimi Zohar
2019-09-19  3:59       ` Thiago Jung Bauermann
2019-09-20  0:32         ` Prakhar Srivastava
2019-09-20  3:07   ` Thiago Jung Bauermann
2019-09-24 19:54     ` prsriva
2019-09-24 20:25       ` Thiago Jung Bauermann
2019-09-24 20:27     ` prsriva
  -- strict thread matches above, loose matches on Subject: below --
2019-09-09 23:14 [RFC PATCH v1 0/1] " Prakhar Srivastava
2019-09-06 23:51 [RFC][PATCH " Prakhar Srivastava
2019-09-07  3:56 ` Stephen Boyd

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