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From: "Richard W.M. Jones" <rjones@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: marc.mari.barcelo@gmail.com, Stefan Hajnoczi <stefanha@gmail.com>,
	Kevin O'Connor <kevin@koconnor.net>,
	Gerd Hoffmann <kraxel@redhat.com>,
	qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Why is SeaBIOS used with -kernel?
Date: Fri, 1 Apr 2016 12:26:43 +0100	[thread overview]
Message-ID: <20160401112642.GL32728@redhat.com> (raw)
In-Reply-To: <56FE59C2.8030400@redhat.com>

On Fri, Apr 01, 2016 at 01:21:38PM +0200, Paolo Bonzini wrote:
> 
> 
> On 01/04/2016 13:20, Richard W.M. Jones wrote:
> > +# MPTABLE is required by Linux kernel, the others add only a
> > +# couple of milliseconds so we might as well have them
> > +CONFIG_PIRTABLE=y
> > +CONFIG_MPTABLE=y
> > +CONFIG_SMBIOS=y
> > +CONFIG_ACPI=y
> > +
> 
> MPTABLE is only required is you don't have ACPI.

True .. however for speed reasons libguestfs uses acpi=off.  It saves
us about 190 ms.  So we need MPTABLE.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-top is 'top' for virtual machines.  Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://people.redhat.com/~rjones/virt-top

  reply	other threads:[~2016-04-01 11:26 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-19 20:31 [Qemu-devel] Why is SeaBIOS used with -kernel? Richard W.M. Jones
2016-03-21  7:58 ` Gerd Hoffmann
2016-03-21  8:37   ` Richard W.M. Jones
2016-03-21  9:40     ` Gerd Hoffmann
2016-03-31  9:21 ` Stefan Hajnoczi
2016-03-31 16:22   ` Kevin O'Connor
     [not found]     ` <20160331221039.GA32728@redhat.com>
2016-03-31 22:17       ` Richard W.M. Jones
2016-03-31 22:44         ` Kevin O'Connor
2016-04-01  7:55           ` Richard W.M. Jones
2016-04-01  8:03             ` Paolo Bonzini
2016-04-01  8:47               ` Richard W.M. Jones
2016-04-01  8:51                 ` Paolo Bonzini
2016-04-01  8:57                   ` Richard W.M. Jones
2016-04-01  9:05                     ` Paolo Bonzini
2016-04-01  8:02           ` Richard W.M. Jones
2016-04-01  8:11             ` Paolo Bonzini
2016-04-01  8:14               ` Richard W.M. Jones
2016-04-01  8:24                 ` Paolo Bonzini
2016-04-01  8:44                   ` Richard W.M. Jones
2016-04-01  8:47                     ` Paolo Bonzini
2016-04-01  8:49                       ` Vasiliy Tolstov
2016-04-01  9:16                     ` Dr. David Alan Gilbert
2016-04-01  9:18                     ` Gerd Hoffmann
2016-04-01 10:17                       ` Richard W.M. Jones
2016-04-01 11:07                         ` Gerd Hoffmann
2016-04-01 11:11                           ` Richard W.M. Jones
2016-04-01 11:20                             ` Richard W.M. Jones
2016-04-01 11:21                               ` Paolo Bonzini
2016-04-01 11:26                                 ` Richard W.M. Jones [this message]
2016-04-05  4:38                               ` Kevin Wolf
2016-04-05  8:04                                 ` Richard W.M. Jones
2016-04-05  8:11                                   ` Kevin Wolf
2016-04-05  9:19                                     ` Richard W.M. Jones
2016-04-05  9:26                                       ` Kevin Wolf
2016-04-01 11:32                             ` Gerd Hoffmann
2016-04-01 11:49                               ` Richard W.M. Jones
2016-04-01 15:35                                 ` Kevin O'Connor
2016-04-01 16:03                                   ` Paolo Bonzini
2016-04-01 18:41                                   ` Richard W.M. Jones
2016-04-01 18:59                                     ` Richard W.M. Jones
2016-04-01 19:04                                       ` Kevin O'Connor
2016-04-01 19:10                                         ` Richard W.M. Jones
2016-04-01 19:15                                           ` Richard W.M. Jones
2016-04-01 19:44                                             ` Kevin O'Connor
2016-04-01 20:25                                               ` Richard W.M. Jones
2016-04-01 20:05                                     ` Kevin O'Connor
2016-04-01 20:46                                       ` Richard W.M. Jones
2016-04-01 22:25                                         ` Kevin O'Connor
2016-04-02  7:51                                           ` Richard W.M. Jones
2016-04-02  5:30                                       ` Paolo Bonzini
2016-04-01 15:08                           ` Kevin O'Connor
2016-04-01 14:58                     ` Kevin O'Connor
2016-04-01 15:06                       ` Richard W.M. Jones
2016-04-01 15:14                         ` Kevin O'Connor
2016-04-01  8:19               ` Richard W.M. Jones

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