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From: Ingo Molnar <mingo@elte.hu>
To: Pekka Enberg <penberg@kernel.org>
Cc: Sasha Levin <levinsasha928@gmail.com>,
	gorcunov@gmail.com, asias.hejun@gmail.com, kvm@vger.kernel.org
Subject: Re: [PATCH] kvm tools: Fix serial port probing
Date: Fri, 9 Dec 2011 21:10:23 +0100	[thread overview]
Message-ID: <20111209201023.GA27932@elte.hu> (raw)
In-Reply-To: <CAOJsxLHW=FO7q-0U=Mpccno_e5zpXCUFR2GSKa0NJMrjYr=8yQ@mail.gmail.com>


* Pekka Enberg <penberg@kernel.org> wrote:

> >                        dev->ier        = ioport__read8(data) & 0x3f;
> > +                       kvm__irq_line(kvm, dev->irq, dev->ier?1:0);
> >                        break;
> >                case UART_LCR:
> >                        dev->lcr        = ioport__read8(data);
> 
> Applied, thanks!
> 
> Ingo, does this fix the occasional slowdowns you are seeing?

Indeed it does!

I still see things like 'top' refreshes progressing - i.e. 
taking something like 100-200 msecs to finish, but it's a *lot* 
faster now.

Thanks,

	Ingo

      reply	other threads:[~2011-12-09 20:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-09 11:16 [PATCH] kvm tools: Fix serial port probing Sasha Levin
2011-12-09 11:47 ` Pekka Enberg
2011-12-09 20:10   ` Ingo Molnar [this message]

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