[PATCH 0/2] add selftest for EFI_TCG2_PROTOCOL and Measured Boot
Simon Glass
sjg at chromium.org
Sun Oct 24 21:54:04 CEST 2021
Hi Masahisa,
On Fri, 22 Oct 2021 at 05:23, Masahisa Kojima
<masahisa.kojima at linaro.org> wrote:
>
> This patch series adds the selftest for the EFI_TCG2_PROTOCOL and
> Measured Boot flow.
> This selftest is verified on qemu with swtpm.
Is this in CI? Where are the instructions for doing this?
I have expressed my preference for expanding the in-tree emulator to
handle this.
Regards,
Simon
>
> This covers most of the functionalities, but there are some
> limitations and TODO items.
>
> [Limitation]
> - tcg2 selftest must run at the beginning of the efi_selftest because
> some measurement occurs in efi_tcg2_register() and boottime->image_load().
> Need to configure the efi_selftest with "setenv efi_selftest tcg2; bootefi selftest"
> - Skip ExitBootService measurement test
> - EFI application can not read PCR after calling ExitBootService
> - Skip EventLog Validation
> - Measured Boot measures U-Boot version, so EventLog varies every build having
> different commit hash.
> - Skip PCR[0] validation
> - PCR[0] include U-Boot version measurement, this value varies every build
> having different commit hash.
> - Skip PCR[7] validation
> - Secure Boot Variables can not be updated through efi_selftest.
> - The initial PCR value of PCR[17 - 22] is all 0xff, I'm not sure
> it is expected or not.
>
> [TODO]
> - GPT measurement test
> - Secure Boot Variable test
> - Eventlog validation
>
> Masahisa Kojima (2):
> efi_loader: add missing const qualifier
> efi_selftest: add selftest for EFI_TCG2_PROTOCOL and Measured Boot
>
> include/efi_api.h | 2 +-
> lib/efi_loader/efi_boottime.c | 5 +-
> lib/efi_selftest/Makefile | 10 +
> .../efi_selftest_miniapp_measuredboot.c | 93 ++
> lib/efi_selftest/efi_selftest_tcg2.c | 804 +++++++++++++++++-
> 5 files changed, 910 insertions(+), 4 deletions(-)
> create mode 100644 lib/efi_selftest/efi_selftest_miniapp_measuredboot.c
>
> --
> 2.17.1
>
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