From: sudeep.holla@arm.com (Sudeep Holla)
To: linux-arm-kernel@lists.infradead.org
Subject: [Query] How to pass reboot arguments to secure firmware with PSCI spec
Date: Fri, 01 Aug 2014 11:21:12 +0100 [thread overview]
Message-ID: <53DB6A18.5050904@arm.com> (raw)
In-Reply-To: <20140801180652.72e722be@xhacker>
On 01/08/14 11:06, Jisheng Zhang wrote:
> Hi Catalin and Will,
>
> I noticed that the following commit implement reboot via. PSCI SYSTEM_RESET
> function. So my question is how to handle the reboot arguments?
>
What reboot arguments do you want to handle ?
>
>> static void psci_sys_reset(enum reboot_mode reboot_mode, const char *cmd)
>> {
>> invoke_psci_fn(PSCI_0_2_FN_SYSTEM_RESET, 0, 0, 0);
>
> How to pass cmd to secure firmware?
>
What cmd do you want to pass ? The function id is already handled. What
else do you want to pass ?
If you see PSCI v0.2 spec, the SYSTEM_RESET and SYSTEM_SHUTDOWN takes no
parameters.
Regards,
Sudeep
WARNING: multiple messages have this Message-ID (diff)
From: Sudeep Holla <sudeep.holla@arm.com>
To: Jisheng Zhang <jszhang@marvell.com>,
Catalin Marinas <Catalin.Marinas@arm.com>,
Will Deacon <Will.Deacon@arm.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Subject: Re: [Query] How to pass reboot arguments to secure firmware with PSCI spec
Date: Fri, 01 Aug 2014 11:21:12 +0100 [thread overview]
Message-ID: <53DB6A18.5050904@arm.com> (raw)
In-Reply-To: <20140801180652.72e722be@xhacker>
On 01/08/14 11:06, Jisheng Zhang wrote:
> Hi Catalin and Will,
>
> I noticed that the following commit implement reboot via. PSCI SYSTEM_RESET
> function. So my question is how to handle the reboot arguments?
>
What reboot arguments do you want to handle ?
>
>> static void psci_sys_reset(enum reboot_mode reboot_mode, const char *cmd)
>> {
>> invoke_psci_fn(PSCI_0_2_FN_SYSTEM_RESET, 0, 0, 0);
>
> How to pass cmd to secure firmware?
>
What cmd do you want to pass ? The function id is already handled. What
else do you want to pass ?
If you see PSCI v0.2 spec, the SYSTEM_RESET and SYSTEM_SHUTDOWN takes no
parameters.
Regards,
Sudeep
next prev parent reply other threads:[~2014-08-01 10:21 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-01 10:06 [Query] How to pass reboot arguments to secure firmware with PSCI spec Jisheng Zhang
2014-08-01 10:06 ` Jisheng Zhang
2014-08-01 10:21 ` Sudeep Holla [this message]
2014-08-01 10:21 ` Sudeep Holla
2014-08-01 11:02 ` Jisheng Zhang
2014-08-01 11:02 ` Jisheng Zhang
2014-08-01 14:00 ` Sudeep Holla
2014-08-01 14:00 ` Sudeep Holla
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