[PATCH] powerpc: PPC_SECURE_BOOT should not require PowerNV

[PATCH] powerpc: PPC_SECURE_BOOT should not require PowerNV

[Daniel Axtens]

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.")
Cc: Nayna Jain <nayna@linux.ibm.com>
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
 arch/powerpc/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 4b33477dafb8..f645fa934853 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -983,7 +983,7 @@ 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

Re: [PATCH] powerpc: PPC_SECURE_BOOT should not require PowerNV

[Michael Ellerman]

On Thu, 24 Sep 2020 11:49:22 +1000, Daniel Axtens wrote:
> 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.
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc: PPC_SECURE_BOOT should not require PowerNV
      https://git.kernel.org/powerpc/c/5c5e46dad939b2bf4df04293ab9ac68abd7c1f55

cheers