Re: [Qemu-devel] Slow kernel/initrd loading via fw_cfg; Was Re: Hack integrating SeaBios / LinuxBoot option rom with QEMU trace backends

[Avi Kivity]

On 10/11/2011 03:19 PM, Anthony Liguori wrote:
>> No, DMA has a lot bigger granularities in kvm/user interaction. We
>> can easily DMA a 50MB region with a single kvm/user exit. For PIO we
>> can at most do page granularity.
>
>
> So make a proper PCI device for kernel loading.  It's a much more
> natural approach and let's use alias -kernel/-initrd/-append to
> -device kernel-pci,kernel=PATH,initrd=PATH

This is overkill.  First let's optimize rep/movs before introducing any
more interfaces.  If that doesn't work, then we can have a dma interface
for fwcfg.  But a new pci device?

-- 
error compiling committee.c: too many arguments to function