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Re: [Qemu-devel] Anyone seeing huge slowdown launching qemu with Linux 2

From: Anthony Liguori
Subject: Re: [Qemu-devel] Anyone seeing huge slowdown launching qemu with Linux 2.6.35?
Date: Wed, 04 Aug 2010 08:04:09 -0500
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100713 Lightning/1.0b1 Thunderbird/3.0.6

On 08/04/2010 03:17 AM, Avi Kivity wrote:
For playing games, there are three options:
- existing fwcfg
- fwcfg+dma
- put roms in 4GB-2MB (or whatever we decide the flash size is) and have the BIOS copy them

Existing fwcfg is the least amount of work and probably satisfactory for isapc. fwcfg+dma is IMO going off a tangent. High memory flash is the most hardware-like solution, pretty easy from a qemu point of view but requires more work.

The only trouble I see is that high memory isn't always available. If it's a 32-bit PC and you've exhausted RAM space, then you're only left with the PCI hole and it's not clear to me if you can really pull out 100mb of space there as an option ROM without breaking something.


Anthony Liguori

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