Hi all, I'm quite new to KVM/QEMU internals. On recent x86 setups (Sandy/Ivy Bridge with vt-x and vt-d), if I attach a PCI device via PCI-Passthrough to a VM, I can directly do MMIO with the device's registers or whatsoever hides behind it's BAR addresses.
I wonder if there is a way for the Host/VMM to monitor/trap guest access to such areas. I think this is not what PCI passthrough is intended for, because it wants to get the host out of the way for I/O with device. But what if a guest goes nuts and starts to flood the interconnect with usless transactions to the PCI device? I would be very thankful for some hints / pointers :) Greetings, Andre -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
