Re: [Qemu-devel] Anyone seeing huge slowdown launching qemu with Linux 2.6.35?

[Avi Kivity]

 On 08/04/2010 12:24 PM, Richard W.M. Jones wrote:
> > > Just like the initrd?
> > There isn't enough address space for a 100MB initrd in ROM.
> Because of limits of the original PC, sure, where you had to fit
> everything in 0xa0000-0xfffff or whatever it was.
>
> But this isn't a real PC.
>
> You can map the read-only memory anywhere you want.

I wasn't talking about the 1MB limit, rather the 4GB limit.  Of that, 
3-3.5GB are reserved for RAM, 0.5-1GB for PCI.  Putting large amounts of 
ROM in that space will cost us PCI space.

100 MB initrds are a bad idea for multiple reasons.  Demand paging is 
there for a reason.

--
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