Re: [Qemu-devel] A problem of IRQchip in QEMU and KVM for ARM

Any idea? Thanks. On Fri, May 19, 2017 at 1:46 PM, Li Zhang wrote: > > Hi, > > I am looking into QEMU code in ARM recently and trying to add add_hot_cpu in > QEMU for ARM, > but it doesn't work when enabling KVM. It reports error: > > "kvm_init_vcpu failed: Device or

[Qemu-devel] A problem of IRQchip in QEMU and KVM for ARM

Hi, I am looking into QEMU code in ARM recently and trying to add add_hot_cpu in QEMU for ARM, but it doesn't work when enabling KVM. It reports error: "kvm_init_vcpu failed: Device or resourc busy." By debugging QEMU with gdb, it failed on ioctl. In kernel soruce code arch/arm/kvm/arm.c, vcpu