Avi Kivity wrote:
> Zhang, Xiantao wrote:
>>>> diff --git a/include/linux/kvm.h b/include/linux/kvm.h
>>>> index 4269be1..9acf34a 100644
>>>> --- a/include/linux/kvm.h
>>>> +++ b/include/linux/kvm.h
>>>> @@ -383,7 +383,9 @@ struct kvm_trace_rec {
>>>> #define KVM_CAP_MP_STATE 14
>>>> #define KVM_CAP_COALESCED_MMIO 15
>>>> #define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected
>>>> in guest */ +#ifdef CONFIG_X86
>>>> #define KVM_CAP_DEVICE_ASSIGNMENT 17
>>>> +#endif
>>>>
>>> I didn't see this changed to also accomodate IA64 in the patchset.
>>>
>>
>> Since linux-ia64 DMAR is not ready in kvm.git, and it should be in
>> linux-ia64.git. So it should be in kvm.git once Avi merged with
>> upstream, so I didn't enable it for kvm/ia64 now. You know, S390
>> has no pci support, so if we put the code in kvm_mainc, we should
>> use the macro to exclude other arch which doesn't need device
>> assignments. If DMAR is ready for kvm.git, I will change this macro
>> as following: #if defined(CONFIG_X86) || defined(CONFIG_IA64)
>> #define KVM_CAP_DEVICE_ASSIGNMENT 17
>> #endif
>>
>
> What does this mean? Does the patchset compile on top of kvm.git or
> not?
Hi, Avi
This patchset can compile on kvm.git. But, you know, since DMAR
support is only going into liux-ia64.git, and before you merging with
linux-ia64.git, we can't enable it. In addition, we also need this
macro to exclude some archs, for example, s390 can't use current
device-assignment logic because it doesn't support pci. So, once you
get merge with linux-ia64.git, we can define this macro for kvm/ia64.
Thanks
Xiantao
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