From: prarit@redhat.com (Prarit Bhargava)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] acpi, spcr: Make SPCR available to x86
Date: Mon, 12 Feb 2018 09:49:47 -0500 [thread overview]
Message-ID: <7bd5897f-d6da-7e29-29c4-aa26d24f6355@redhat.com> (raw)
In-Reply-To: <953565bd-436b-c1fe-d3c5-cde731dee83d@codeaurora.org>
On 02/12/2018 09:43 AM, Timur Tabi wrote:
> On 2/12/18 7:47 AM, Prarit Bhargava wrote:
>> ACPI SPCR is used by a vendor to define the serial console for a system. If
>> SPCR exists a user can add kernel parameter "earlycon" (no extra kernel
>> parameters) and the console will work out-of-the-box.
>
> "earlycon" is needed only for an *early* console. You don't need any command
> line parameters for a normal console to work with SPCR.
That's true on ARM64. I specifically did not enable the console by default on
x86. There are users who do not want a console active during boot & runtime.
P.
>
next prev parent reply other threads:[~2018-02-12 14:49 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-18 15:09 [PATCH] acpi, spcr: Make SPCR available to x86 Prarit Bhargava
2018-01-20 14:33 ` Ingo Molnar
2018-01-21 23:21 ` Mark Salter
2018-01-22 21:49 ` Timur Tabi
2018-01-23 12:41 ` Prarit Bhargava
2018-02-12 13:34 ` Peter Zijlstra
2018-02-12 13:47 ` Prarit Bhargava
2018-02-12 14:43 ` Timur Tabi
2018-02-12 14:49 ` Prarit Bhargava [this message]
2018-02-12 15:10 ` Timur Tabi
2018-02-12 14:56 ` Peter Zijlstra
2018-02-12 15:18 ` Prarit Bhargava
2018-02-12 15:44 ` Peter Zijlstra
2018-02-12 15:54 ` Prarit Bhargava
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