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From: Alon Levy <alevy@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: spice-devel@lists.freedesktop.org, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [Spice-devel] [PATCH 4/4] [experimental] add optinal 64bit vram bar to qxl
Date: Mon, 20 Feb 2012 10:19:00 +0200	[thread overview]
Message-ID: <20120220081900.GV23926@garlic.redhat.com> (raw)
In-Reply-To: <4F41FD8E.60406@redhat.com>

On Mon, Feb 20, 2012 at 09:00:14AM +0100, Gerd Hoffmann wrote:
>   Hi,
> 
> > I guess you will s/4/QXL_VRAM64_RANGE_INDEX/ when you send the
> > spice-protocol patch?
> 
> Yes.
> 
> >> -    if (qxl->vram_size < 4096) {
> >> -        qxl->vram_size = 4096;
> >> +    if (qxl->vram_size < qxl->vram32_size) {
> >> +        qxl->vram_size = qxl->vram32_size;
> > 
> > Am I reading correctly that you want the 64bit bar to be at least the
> > size of the 32bit bar? why?
> 
> The 64bit bar isn't additional memory.  Both 32bit and 64bit bar are
> backed by the same memory, the 64bit bar is just a different way to
> access it.  So it doesn't make sense at all to make the 64bit bar
> smaller than the 32bit bar.  The other way around makes sense, to save
> address space below 4G.

Ok, thanks for the patient repetition of your clear commit message :)

ACK

> 
> cheers,
>   Gerd
> 

      reply	other threads:[~2012-02-20  8:19 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-17 15:10 [Qemu-devel] [PATCH 0/4] qxl: memory config patches Gerd Hoffmann
2012-02-17 15:10 ` [Qemu-devel] [PATCH 1/4] qxl: drop vram bar minimum size Gerd Hoffmann
2012-02-17 19:27   ` Alon Levy
2012-02-17 19:28   ` Alon Levy
2012-02-17 15:10 ` [Qemu-devel] [PATCH 2/4] qxl: move ram size init to new function Gerd Hoffmann
2012-02-17 19:29   ` [Qemu-devel] [Spice-devel] " Alon Levy
2012-02-17 15:10 ` [Qemu-devel] [PATCH 3/4] qxl: add user-friendly bar size properties Gerd Hoffmann
2012-02-17 19:39   ` [Qemu-devel] [Spice-devel] " Alon Levy
2012-02-17 15:10 ` [Qemu-devel] [PATCH 4/4] [experimental] add optinal 64bit vram bar to qxl Gerd Hoffmann
2012-02-17 19:39   ` [Qemu-devel] [Spice-devel] " Alon Levy
2012-02-20  8:00     ` Gerd Hoffmann
2012-02-20  8:19       ` Alon Levy [this message]

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