Hi,
> > AFAIK latest seabios already supports DMA.
> > It's easy to add more config options for seabios
> > if you are so inclined.
>
> Yes, I tried that, the fw_cfg overhead in SeaBios/linuxboot optrom is
> already not a big issue for us. However, there are still some other
> code in SeaBIOS n
> > > 1) qboot optimizations: adopt the fw_cfg DMA interface instead of
> > > the
> > > cbfs flash hack (so that -kernel works), drop PCI bridge
> > > initialization,
> > > copy less than 64K of memory from ROM to 0xf;
> >
> > I can do the evaluation on qboot. Also adding Amnon Ilan, to see i
On Tue, Sep 06, 2016 at 04:21:25PM +0200, Paolo Bonzini wrote:
>
>
> On 06/09/2016 12:48, Chao Peng wrote:
> >> As you might expect, I don't agree with removing the
> >> firmware. There's
> >> room for much more optimization before duplicating firmware code in
> >> QEMU. I'd rather see numbers
> > > 2) Linux optimizations: using an uncompressed image to avoid the
> > > cost of copying and decompressing. QEMU can already load the
> > > image
> > > at the right place and the real mode stub can do little more than
> > > GDT/IDT setup.
> >
> > This works surely. I actually followed your s
On 06/09/2016 12:48, Chao Peng wrote:
>> As you might expect, I don't agree with removing the
>> firmware. There's
>> room for much more optimization before duplicating firmware code in
>> QEMU. I'd rather see numbers for:
>>
>> 1) qboot optimizations: adopt the fw_cfg DMA interface instead of
On Tue, Sep 06, 2016 at 06:48:57PM +0800, Chao Peng wrote:
>
> > Patches 1-4 are okay, though I think it would be easier to add a -M
> > q35-lite too that just removes the legacy devices. The -M q35-lite
> > machine doesn't have to support versioning for now.
>
> Okay, this is also good to have
> Patches 1-4 are okay, though I think it would be easier to add a -M
> q35-lite too that just removes the legacy devices. The -M q35-lite
> machine doesn't have to support versioning for now.
Okay, this is also good to have in my mind.
>
> As you might expect, I don't agree with removing the
On Fri, Sep 02, 2016 at 01:08:29PM +0200, Paolo Bonzini wrote:
>
>
> On 25/08/2016 12:14, Chao Peng wrote:
> > This patchset is trying to optimize guest startup time by disabling
> > or simplifying some features in QEMU. The version 1 can be found at:
> > https://lists.nongnu.org/archive/html/qem
On 25/08/2016 12:14, Chao Peng wrote:
> This patchset is trying to optimize guest startup time by disabling
> or simplifying some features in QEMU. The version 1 can be found at:
> https://lists.nongnu.org/archive/html/qemu-devel/2016-06/msg04842.html
>
> Unlike version 1, this version optimizes
This patchset is trying to optimize guest startup time by disabling
or simplifying some features in QEMU. The version 1 can be found at:
https://lists.nongnu.org/archive/html/qemu-devel/2016-06/msg04842.html
Unlike version 1, this version optimizes Q35 directly instead of
introducing a totally new
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