linux-kernel - Re: [PATCH v5 2/2] arch/x86: remove pci uart early console from early

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 2 Jun 2015 23:46:02 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Bin Gao <bin.gao@...ux.intel.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	Peter Hurley <peter@...leysoftware.com>,
	Jiri Slaby <jslaby@...e.cz>, Borislav Petkov <bp@...e.de>,
	"Stuart R. Anderson" <stuart.r.anderson@...el.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 2/2] arch/x86: remove pci uart early console from
 early_prink.c


* Bin Gao <bin.gao@...ux.intel.com> wrote:

> On Tue, Jun 02, 2015 at 01:54:33PM +0200, Ingo Molnar wrote:
> > 
> > * Bin Gao <bin.gao@...ux.intel.com> wrote:
> > 
> > > The arch independent uart8250 early console driver has good support for memory 
> > > mapped and io port based 8250 uarts. Since pci is arch independent so it's 
> > > natural to extend uart8250 to support mem, io and pci. Hence pci uart early 
> > > console in arch/x86/kernel_printk.c by the following commit: 'commit 
> > > 5140fda16051 ("Specify PCI based UART for earlyprintk")' is removed. And its 
> > > equivalent function will be available from uart8250 early console driver.
> > 
> > In what way have you tested this change, does serial-earlyprintk still work on x86 
> > after the change?
> > 
> > Thanks,
> > 
> > 	Ingo
> 
> Yes, this patch was tested with earlyprintk=serial,0x3f8 on my x86 box and
> the early console worked fine.

So the format on x86 used to be:

  earlyprintk=serial,ttyS0,115200

does that work too?

Thanks,

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/