On 07/21/2012 09:12 AM, Wen Congyang wrote:
> +#define KVM_PV_PORT (0x505UL)
> +
> #ifdef __KERNEL__
> #include <asm/processor.h>
>
> @@ -221,6 +223,11 @@ static inline void kvm_disable_steal_time(void)
> }
> #endif
>
> +static inline unsigned int kvm_arch_pv_features(void)
> +{
> + return inl(KVM_PV_PORT);
> +}
> +
Why is this safe?
I'm not sure you can just pick any ioport you'd like and use it.
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