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From: Michael Ellerman <mpe@ellerman.id.au>
To: Nayna Jain <nayna@linux.ibm.com>,
	linuxppc-dev@ozlabs.org, linux-efi@vger.kernel.org,
	linux-integrity@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Jeremy Kerr <jk@ozlabs.org>,
	Matthew Garret <matthew.garret@nebula.com>,
	Mimi Zohar <zohar@linux.ibm.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Claudio Carvalho <cclaudio@linux.ibm.com>,
	George Wilson <gcwilson@linux.ibm.com>,
	Elaine Palmer <erpalmer@us.ibm.com>,
	Eric Ricther <erichte@linux.ibm.com>,
	Oliver O'Halloran <oohall@gmail.com>,
	Nayna Jain <nayna@linux.ibm.com>,
	Prakhar Srivastava <prsriva02@gmail.com>,
	Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
Subject: Re: [PATCH v8 3/8] powerpc: detect the trusted boot state of the system
Date: Wed, 23 Oct 2019 10:38:38 +1100	[thread overview]
Message-ID: <87wocw5p1d.fsf@mpe.ellerman.id.au> (raw)
In-Reply-To: <1571508377-23603-4-git-send-email-nayna@linux.ibm.com>

Nayna Jain <nayna@linux.ibm.com> writes:
> diff --git a/arch/powerpc/kernel/secure_boot.c b/arch/powerpc/kernel/secure_boot.c
> index 99bba7915629..9753470ab08a 100644
> --- a/arch/powerpc/kernel/secure_boot.c
> +++ b/arch/powerpc/kernel/secure_boot.c
> @@ -28,3 +39,16 @@ bool is_ppc_secureboot_enabled(void)
>  	pr_info("Secure boot mode %s\n", enabled ? "enabled" : "disabled");
>  	return enabled;
>  }
> +
> +bool is_ppc_trustedboot_enabled(void)
> +{
> +	struct device_node *node;
> +	bool enabled = false;
> +
> +	node = get_ppc_fw_sb_node();
> +	enabled = of_property_read_bool(node, "trusted-enabled");

Also here you need:

	of_node_put(node);

> +
> +	pr_info("Trusted boot mode %s\n", enabled ? "enabled" : "disabled");
> +
> +	return enabled;
> +}

cheers

  parent reply	other threads:[~2019-10-22 23:38 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-19 18:06 [PATCH v8 0/8] powerpc: Enabling IMA arch specific secure boot policies Nayna Jain
2019-10-19 18:06 ` [PATCH v8 1/8] powerpc: detect the secure boot mode of the system Nayna Jain
2019-10-22 23:37   ` Michael Ellerman
2019-10-19 18:06 ` [PATCH v8 2/8] powerpc/ima: add support to initialize ima policy rules Nayna Jain
2019-10-20  0:16   ` Mimi Zohar
2019-10-19 18:06 ` [PATCH v8 3/8] powerpc: detect the trusted boot state of the system Nayna Jain
2019-10-20 12:48   ` Mimi Zohar
2019-10-22 23:38   ` Michael Ellerman [this message]
2019-10-19 18:06 ` [PATCH v8 4/8] powerpc/ima: add measurement rules to ima arch specific policy Nayna Jain
2019-10-20  0:16   ` Mimi Zohar
2019-10-19 18:06 ` [PATCH v8 5/8] ima: make process_buffer_measurement() generic Nayna Jain
2019-10-20  1:21   ` Mimi Zohar
2019-10-19 18:06 ` [PATCH v8 6/8] certs: add wrapper function to check blacklisted binary hash Nayna Jain
2019-10-19 18:06 ` [PATCH v8 7/8] ima: check against blacklisted hashes for files with modsig Nayna Jain
2019-10-20  0:58   ` Mimi Zohar
2019-10-20 16:06   ` Mimi Zohar
2019-10-20 16:09     ` Mimi Zohar
2019-10-19 18:06 ` [PATCH v8 8/8] powerpc/ima: update ima arch policy to check for blacklist Nayna Jain

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