On 10/14/2012 02:04 AM, Christoffer Dall wrote:
*** warning: this RFC patch series is only compile-tested *** We need a way to specify the address at which we expect VMs to access the interrupt controller (both the emulated distributor and the hardware interface supporting virtualization). User space should decide on this address as user space decides on an emulated board and loads a device tree describing these details directly to the guest. Instead of modifying the copying KVM_CREATE_IRQCHIP to an ARM specific ioctl with a a highly device specific set of parameters, we try something slightly more generic, that should fit well with how user space (read QEMU) first builds the individual devices and later sets up the emulated platform.
Have you talked to Ben about this one? He wanted to design a new, more flexible irqchip API that would work for XICS & MPIC. Maybe there's some room for cooperation here?
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