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20 Mar 2020 06:57:44 -0700 Subject: Re: [PATCH 3/3] iommu/vt-d: Add build dependency on IOASID To: Jacob Pan , LKML , iommu@lists.linux-foundation.org, Joerg Roedel , David Woodhouse References: <1584678751-43169-1-git-send-email-jacob.jun.pan@linux.intel.com> <1584678751-43169-4-git-send-email-jacob.jun.pan@linux.intel.com> From: Lu Baolu Message-ID: <2f2b5c45-552f-1399-ad7d-0c460ab783f4@linux.intel.com> Date: Fri, 20 Mar 2020 21:57:43 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <1584678751-43169-4-git-send-email-jacob.jun.pan@linux.intel.com> Content-Language: en-US Cc: Raj Ashok X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On 2020/3/20 12:32, Jacob Pan wrote: > IOASID code is needed by VT-d scalable mode for PASID allocation. > Add explicit dependency such that IOASID is built-in whenever Intel > IOMMU is enabled. > Otherwise, aux domain code will fail when IOMMU is built-in and IOASID > is compiled as a module. > > Signed-off-by: Jacob Pan Fixes: 59a623374dc38 ("iommu/vt-d: Replace Intel specific PASID allocator with IOASID") Acked-by: Lu Baolu Best regards, baolu > --- > drivers/iommu/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig > index d2fade984999..25149544d57c 100644 > --- a/drivers/iommu/Kconfig > +++ b/drivers/iommu/Kconfig > @@ -188,6 +188,7 @@ config INTEL_IOMMU > select NEED_DMA_MAP_STATE > select DMAR_TABLE > select SWIOTLB > + select IOASID > help > DMA remapping (DMAR) devices support enables independent address > translations for Direct Memory Access (DMA) from devices. > _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu