From: Jan Kiszka <jan.kiszka@siemens.com>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Andy Lutomirski <luto@kernel.org>, Ingo Molnar <mingo@kernel.org>,
x86 <x86@kernel.org>, linux-efi <linux-efi@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>,
Matt Fleming <matt@codeblueprint.co.uk>,
Thomas Gleixner <tglx@linutronix.de>,
Brian Gerst <brgerst@gmail.com>,
Thomas Garnier <thgarnie@google.com>,
Denys Vlasenko <dvlasenk@redhat.com>,
Juergen Gross <jgross@suse.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>
Subject: Re: [tip:x86/mm] x86/boot/32: Defer resyncing initial_page_table until per-cpu is set up
Date: Mon, 8 May 2017 17:24:58 +0200 [thread overview]
Message-ID: <7bc13fad-ef45-03e3-ad43-7bca3fdf7f21@siemens.com> (raw)
In-Reply-To: <CAHp75Ve3nAyy1KxwUGz74Xt3cz-=Mc=7QqWAjwvrLQUrJsEH8Q@mail.gmail.com>
On 2017-05-08 16:45, Andy Shevchenko wrote:
> On Mon, May 8, 2017 at 3:34 PM, Jan Kiszka <jan.kiszka@siemens.com> wrote:
>> On 2017-05-08 13:21, Andy Lutomirski wrote:
>
>> Yes, it's an EFI thing. Unfortunately, I didn't make
>> earlycon/earlyprintk work yet.
>
> Quark does use HS UART for the console and we have no support for such
> in x86/earlyprintk. earlycon should work if you add proper parameters
> to the command line (including port base address, no ttySx), though I
> don't remember if it makes really "early".
Ah, that explains it. I've tried earlycon, also with the apparently
correct params, but it didn't print anything in this case. And
earlyprintk=efi seems to use a framebuffer, while our devices are
headless...
Jan
--
Siemens AG, Corporate Technology, CT RDA ITP SES-DE
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2017-05-08 15:25 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-22 21:32 [PATCH 0/7] Misc GDT fixes and a cleanup Andy Lutomirski
2017-03-22 21:32 ` [PATCH 1/7] selftests/x86/ldt_gdt_32: Work around a glibc sigaction bug Andy Lutomirski
2017-03-23 9:13 ` [tip:x86/mm] selftests/x86/ldt_gdt_32: Work around a glibc sigaction() bug tip-bot for Andy Lutomirski
2017-03-22 21:32 ` [PATCH 2/7] x86/gdt: Fix setup_fixmap_gdt() to use the correct PA Andy Lutomirski
2017-03-23 9:13 ` [tip:x86/mm] " tip-bot for Andy Lutomirski
2017-03-22 21:32 ` [PATCH 3/7] x86/efi/32: Fix EFI on systems where the percpu GDT is virtually mapped Andy Lutomirski
2017-03-23 9:14 ` [tip:x86/mm] x86/efi/32: Fix EFI on systems where the per-cpu " tip-bot for Andy Lutomirski
2017-03-22 21:32 ` [PATCH 4/7] x86/boot/32: Defer resyncing initial_page_table until percpu is set up Andy Lutomirski
2017-03-23 9:14 ` [tip:x86/mm] x86/boot/32: Defer resyncing initial_page_table until per-cpu " tip-bot for Andy Lutomirski
2017-05-08 6:31 ` Jan Kiszka
2017-05-08 9:32 ` Andy Shevchenko
2017-05-08 11:21 ` Andy Lutomirski
2017-05-08 12:34 ` Jan Kiszka
2017-05-08 14:45 ` Andy Shevchenko
2017-05-08 15:24 ` Jan Kiszka [this message]
2017-05-08 17:53 ` Jan Kiszka
2017-05-09 0:03 ` Andy Lutomirski
2017-03-22 21:32 ` [PATCH 5/7] x86/gdt: Get rid of the get_*_gdt_*_vaddr() helpers Andy Lutomirski
2017-03-23 9:15 ` [tip:x86/mm] " tip-bot for Andy Lutomirski
2017-03-22 21:32 ` [PATCH 6/7] x86/xen/gdt: Use X86_FEATURE_XENPV instead of globals for the GDT fixup Andy Lutomirski
2017-03-23 9:15 ` [tip:x86/mm] " tip-bot for Andy Lutomirski
2017-03-22 21:32 ` [PATCH 7/7] x86/boot/32: Rewrite test_wp_bit() Andy Lutomirski
2017-03-23 7:31 ` [PATCH 0/7] Misc GDT fixes and a cleanup Ingo Molnar
2017-03-23 12:18 ` Boris Ostrovsky
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