2015-03-02 15:02-0600, Joel Schopp:
> +int kvm_fast_pio_in(struct kvm_vcpu *vcpu, int size, unsigned short port)
> +{
> + unsigned long val;
> + int ret = emulator_pio_in_emulated(&vcpu->arch.emulate_ctxt, size,
> + port, &val, 1);
> +
Btw. does this return 1 in some scenario?
> + if (ret)
> + kvm_register_write(vcpu, VCPU_REGS_RAX, val);
> + else
> + vcpu->arch.complete_userspace_io = complete_fast_pio;
> +
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(kvm_fast_pio_in);
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