Re: [Qemu-devel] Re: How to map PCI memory into the VM without trapping

2010-05-06 Thread Cam Macdonell
On Wed, May 5, 2010 at 5:20 PM, Frank Berreth wrote: > Hi there, > this is just an update if you are interested in the outcome. I turns out > that my initial assumption that there would be page faults/trapping on the > memory pages was false. The reason the throughput is so low is because the > me

[Qemu-devel] Re: How to map PCI memory into the VM without trapping

2010-05-06 Thread Frank Berreth
Hi there, this is just an update if you are interested in the outcome. I turns out that my initial assumption that there would be page faults/trapping on the memory pages was false. The reason the throughput is so low is because the memory was mapped non-cached. The VGA driver and the ivshmem driv