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
