hi jan
>>>> On 29.04.16 at 11:14, <zhan...@cn.fujitsu.com> wrote:
>> hi all
>>
>> in
>> - p2m-ept.c
>> - ept_set_entry
>>
>> i see code about iommu,
>> those code for what?
>
>For keeping the IOMMU translation tables in sync with the CPU ones?
got it, thanks.
i will check IOMMU translation.
>But perhaps I'm simply not understanding what you try to get at...
i only want to know the purpose of those code.
>
>Jan
>
>> -----
>>
>> if ( rc == 0 && p2m_is_hostp2m(p2m) && need_iommu(d) &&
>> need_modify_vtd_table )
>> {
>> if ( iommu_hap_pt_share )
>> iommu_pte_flush(d, gfn, &ept_entry->epte, order,
>> vtd_pte_present);
>> else
>> {
>> if ( iommu_flags )
>> for ( i = 0; i < (1 << order); i++ )
>> iommu_map_page(d, gfn + i, mfn_x(mfn) + i, iommu_flags);
>> else
>> for ( i = 0; i < (1 << order); i++ )
>> iommu_unmap_page(d, gfn + i);
>> }
>> }
>>
>>
>> --------------
>> --------------
>> A new email address of FJWAN is launched from Apr.1 2007.
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>> --------------------------------------------------
>> Zhang Chunyu
>> Nanjing Fujitsu Nanda Software Tech. Co., Ltd.(FNST)
>> No. 6 Wenzhu Road, Nanjing, 210012, China
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>
>
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