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    Subject[PATCH 5.9 483/757] powerpc: PPC_SECURE_BOOT should not require PowerNV
    Date
    From: Daniel Axtens <dja@axtens.net>

    [ Upstream commit 5c5e46dad939b2bf4df04293ab9ac68abd7c1f55 ]

    In commit 61f879d97ce4 ("powerpc/pseries: Detect secure and trusted
    boot state of the system.") we taught the kernel how to understand the
    secure-boot parameters used by a pseries guest.

    However, CONFIG_PPC_SECURE_BOOT still requires PowerNV. I didn't
    catch this because pseries_le_defconfig includes support for
    PowerNV and so everything still worked. Indeed, most configs will.
    Nonetheless, technically PPC_SECURE_BOOT doesn't require PowerNV
    any more.

    The secure variables support (PPC_SECVAR_SYSFS) doesn't do anything
    on pSeries yet, but I don't think it's worth adding a new condition -
    at some stage we'll want to add a backend for pSeries anyway.

    Fixes: 61f879d97ce4 ("powerpc/pseries: Detect secure and trusted boot state of the system.")
    Signed-off-by: Daniel Axtens <dja@axtens.net>
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
    Link: https://lore.kernel.org/r/20200924014922.172914-1-dja@axtens.net
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/powerpc/Kconfig | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
    index 787e829b6f25c..997da0221780b 100644
    --- a/arch/powerpc/Kconfig
    +++ b/arch/powerpc/Kconfig
    @@ -980,7 +980,7 @@ config PPC_MEM_KEYS
    config PPC_SECURE_BOOT
    prompt "Enable secure boot support"
    bool
    - depends on PPC_POWERNV
    + depends on PPC_POWERNV || PPC_PSERIES
    depends on IMA_ARCH_POLICY
    imply IMA_SECURE_AND_OR_TRUSTED_BOOT
    help
    --
    2.25.1


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