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From: Kevin O'Connor <kevin@koconnor.net>
To: Anthony Liguori <aliguori@linux.vnet.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>,
	seabios@seabios.org, qemu-devel@nongnu.org,
	Gleb Natapov <gleb@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] add 40-48 bit RAM range to seabios
Date: Fri, 17 Sep 2010 09:11:30 -0400	[thread overview]
Message-ID: <20100917131130.GA15945@morn.localdomain> (raw)
In-Reply-To: <4C9364B8.6030708@linux.vnet.ibm.com>

On Fri, Sep 17, 2010 at 07:53:12AM -0500, Anthony Liguori wrote:
> On 09/16/2010 08:47 PM, Kevin O'Connor wrote:
> >On Wed, Sep 15, 2010 at 07:15:28PM +0200, Andrea Arcangeli wrote:
> >>This uses a new cmos port at 0x5e that shall read zero to be backwards
> >>compatible.
> >It looks okay to me.  Can you provide an Acked-by from one of the qemu
> >or kvm maintainers?
> 
> Is CMOS the best place to communicate this (as opposed to fw_cfg)?
> 
> I know we currently expose memory size via CMOS but perhaps it's
> better to switch to a 64-bit fw_cfg value.

I'd personally prefer fw_cfg.

Also, another possibility would be to stop sending an absolute max and
to instead send a map of memory.  The latter would allow for
non-contiguous memory.

-Kevin

  reply	other threads:[~2010-09-17 13:11 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-15 17:15 [Qemu-devel] [PATCH] add 40-48 bit RAM range to seabios Andrea Arcangeli
2010-09-17  1:47 ` Kevin O'Connor
2010-09-17 12:53   ` Anthony Liguori
2010-09-17 13:11     ` Kevin O'Connor [this message]
2010-09-17 18:49       ` H. Peter Anvin

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